CN118054389A

CN118054389A - Power supply equipment, power receiving equipment, chip and power supply system

Info

Publication number: CN118054389A
Application number: CN202211436779.2A
Authority: CN
Inventors: 李新; 阳美文; 龚树强; 张家聪
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2024-05-17
Also published as: WO2024104132A1

Abstract

The utility model provides a power supply equipment, power receiving equipment, chip and power supply system, relates to the power supply technology field, can realize that same power supply equipment supports the power receiving equipment of different power supply demands. The power supply device includes: the power supply module, and the first control interface and the first power supply interface which are connected with the power supply module; the power receiving apparatus includes: the system module is connected with the second control interface and the power receiving module, and the power receiving module is connected with the second power supply interface. The first control interface is connected with the second control interface, and the first power supply interface is connected with the second power supply interface; the first control interface acquires first control information sent by the power receiving equipment through the second control interface, wherein the first control information is generated by the power supply requirement of the power receiving module acquired by the system module; the power supply module outputs a first direct current to the first power supply interface according to the power supply requirement of the power receiving module indicated by the first control information, and the electrical parameter of the first direct current is adjusted to a first value by the power supply module according to the power supply requirement of the power receiving module.

Description

Power supply equipment, power receiving equipment, chip and power supply system

Technical Field

The embodiment of the application relates to the technical field of power supplies, in particular to power supply equipment, power receiving equipment, a chip and a power supply system.

Background

In order to reduce the thickness of the whole terminal equipment and the influence of heat dissipation of the power supply on the whole terminal equipment, the industry generally designs a large-sized high-power supply and the whole terminal equipment separately. Particularly, in terminal equipment, ultra-thin is an important selling point of high-end terminal equipment, but the further reduction of the thickness of the terminal equipment is often limited by a power supply part in the whole machine, and the reason is mainly that the large-power supply device and the radiator are large in size, and the safety distance requirement of space layout of safety regulations is a bottleneck of the thickness of the whole machine, so that the split design of the power supply and the whole machine of the terminal equipment is particularly important.

However, the split scheme brings about the problem of interface and cable universality, if a customized interface and customized cable are adopted, the customized interface, cable and power supply are required to be independently designed for terminal equipment with different power supply requirements, which causes higher cost; in the customized scheme, since terminal devices with different power supply requirements cannot be compatible with the same power supply, the power supply cannot be subjected to normalized design; if the terminal equipment with different power supply requirements adopts a generalized interface, a cable and a power supply, the universality is poor when the power supplies for providing the power supply voltage are matched due to the fact that the different terminal equipment has different power supply requirements, namely the same power supply cannot be generally matched with the terminal equipment with different power supply requirements, and therefore when the same power supply is interconnected with the different terminal equipment through the universal interface and the universal cable, the terminal equipment can possibly work normally due to insufficient power supply voltage or the power supply voltage exceeds the rated voltage of the terminal equipment, so that the terminal equipment is damaged; in summary, in the generalized scheme, when different terminal devices and power sources are interconnected through the generalized interfaces and cables, the terminal devices and the power sources are combined with each other and cannot be foolproof.

Disclosure of Invention

The embodiment of the invention provides power supply equipment, power receiving equipment, a chip and a power supply system, which can realize that the same power supply equipment supports power receiving equipment with different power supply requirements.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:

In a first aspect, a power supply apparatus is provided for connecting a power receiving apparatus through a cable. Wherein structurally, the power supply device comprises: the power supply module, and the first control interface and the first power supply interface which are connected with the power supply module; the power receiving apparatus includes: the system module is connected with the second control interface and the power receiving module, and the power receiving module is connected with the second power supply interface. Thus, when the power supply equipment is connected with the power receiving equipment through the cable, the first control interface is connected with the second control interface through a line in the cable, and the first power supply interface is connected with the second power supply interface through a line in the cable.

Based on the above structure, in the power supply device, the first control interface is configured to acquire first control information sent by the power receiving device through the second control interface, where the first control information is generated by a power supply requirement of the power receiving module acquired by the system module; the power supply module is configured to output a first direct current to the first power supply interface according to the power supply requirement of the power receiving module indicated by the first control information, and the electrical parameter of the first direct current is adjusted to a first value by the power supply module according to the power supply requirement of the power receiving module.

In this way, in the above example, since the power receiving device may acquire the power supply requirement of the power receiving module through the system module, generate the first control information and send the first control information to the power supply device, after receiving the first control information, the power supply device may control the electrical parameter of the direct current output to the power receiving module by the power receiving module according to the power supply requirement of the power receiving module indicated by the first control information, so as to implement flexible adjustment of power supply to the power receiving device, especially for the power receiving device with different power supply requirements, since the scheme provided by the embodiment of the application can implement flexible adjustment of power supply to the power receiving device, it is also ensured that the power supply device can support the power receiving device with different power supply requirements.

In one possible implementation, the power supply device further includes: the third power supply interface is connected with the power supply module; the power receiving equipment further comprises a fourth power supply interface connected with the system module; when the power supply equipment is connected with the power receiving equipment through a cable, the third power supply interface is connected with the fourth power supply interface through a line in the cable; and the power supply module is configured to output the second direct current to the third power supply interface. Therefore, the power supply requirement of the power receiving module is required to be acquired through the system module, and the system module is required to be electrified through the power supply equipment, so that the system module can be ensured to work normally when the second direct current is supplied. Of course, there are other ways to power up the system module, and this is specifically described in the second aspect described below.

In one possible implementation, after the system module is powered on, the electrical parameter of the second direct current Vsys may be further adjusted according to the power supply requirement of the system module. For example, a system module configured to generate second control information according to a power supply requirement of the system module; the power supply requirement of the system module may include an electrical parameter determined by a load state (light load or heavy load), an operating state (for example, screen-off, screen-on, power-on, standby, etc.) of the system module, for example, voltage, current, and power. The first control interface is further configured to acquire second control information sent by the powered device through the second control interface, wherein the second control information is generated by the power supply requirement of the system module acquired by the system module; and the power supply module is configured to adjust the electrical parameter of the second direct current to a second value according to the power supply requirement of the system module indicated by the second control information.

In one possible implementation, the power supply device further includes a detection circuit, and the detection circuit is connected between the power supply module and the first control interface; the power receiving equipment further comprises a feedback circuit, and the feedback circuit is connected between the system module and the second control interface; the first control interface is specifically configured to receive first control information sent by the feedback circuit through the second control interface, and the first control information is generated by the feedback circuit according to the power supply requirement of the power receiving module acquired by the system module; and the detection circuit is configured to detect the power supply requirement of the first control information generation power receiving module. In this example, the power supply requirement of the power receiving module may be converted into the first control information in the fixed format by the feedback circuit, and transmitted to the detection circuit through the line, and the detection circuit detects the power supply requirement of the corresponding power receiving module in the first control information in the fixed format, and then transmits the power supply requirement to the power supply module, so as to implement the corresponding control in the foregoing example on the power supply module. For example, the first control information may be one or more of a protocol signal, or a signal in the form of a digital signal (e.g., a pulse width modulation (pulse width modulation, PWM) signal), an analog signal, and a general-purpose input/output (GPIO) signal.

In one possible implementation, the power supply device further includes a detection circuit, and the detection circuit is connected between the power supply module and the first control interface; the power receiving equipment further comprises a feedback circuit, and the feedback circuit is connected between the system module and the second control interface; the first control interface is further configured to receive second control information sent by the feedback circuit through the second control interface, and the second control information is generated by the feedback circuit according to the power supply requirement of the system module acquired by the system module; and the detection circuit is configured to detect the power supply requirement of the second control information generation system module. In this example, the power supply requirement of the system module may be converted into the second control information in the fixed format by the feedback circuit, and transmitted to the detection circuit through the line, and the detection circuit detects the power supply requirement of the corresponding system module in the second control information in the fixed format, and then transmits the detected power supply requirement to the power supply module, so as to implement the corresponding control in the foregoing example on the power supply module. For example, the second control information may be a protocol signal, or one or more of signals in the form of digital signals (e.g., PWM signals), analog signals, GPIO signals, and the like.

In one possible implementation manner, the power supply device is further configured to receive feedback information sent by the power receiving device, where the feedback information is generated by detecting a detection value of an electrical parameter of the first direct current after the power receiving device receives the first direct current; the feedback information carries the detection value of the electrical parameter of the first direct current; and the power supply module is configured to adjust the electrical parameter of the first direct current to a first value according to the detection value. In the example, the closed-loop FB adjustment can be realized through feedback information, so that the electrical parameter of the first direct current is always stabilized on the electrical parameter matched with the power supply requirement of the power receiving module, and the defect of insufficient power supply or power waste caused by unstable electrical parameter of the first direct current is avoided.

In one possible implementation, the power supply device further includes a detection circuit, and the detection circuit is connected between the power supply module and the first control interface; the power receiving equipment further comprises a feedback circuit, and the feedback circuit is connected between the power receiving module and the second control interface; the first control interface is configured to receive feedback information sent by the feedback circuit through the second control interface; and a detection circuit configured to detect the feedback information to obtain a detection value. And the power supply module is configured to adjust the electrical parameter of the first direct current to a first value according to the detection value. In this example, first, the FB adjustment of the closed loop is implemented through the detection value, so that the electrical parameter of the first direct current is always stabilized on the electrical parameter matched with the power supply requirement of the power receiving module, and the power supply power shortage or the power waste caused by the instability of the electrical parameter of the first direct current is avoided. Secondly, the detection value can be converted into feedback information with a fixed format by the feedback circuit, the feedback information is transmitted to the detection circuit through a line, and the detection circuit detects the corresponding detection value in the feedback information with the fixed format and then transmits the detection value to the power supply module, so that the power supply module is correspondingly controlled in the example. For example, the feedback information may be one or more of a protocol signal, or a signal in the form of a digital signal (e.g., PWM signal), an analog signal, and a GPIO signal, etc. Therefore, when the cable is designed, the first control information, the second control information and the feedback information can be transmitted only through one line, so that the plugging of the interface in the corresponding connector can be realized only through one pin in the cable, and the arrangement is more beneficial to supporting the forward and backward plugging design of the cable.

In one possible implementation, the detection circuit includes one or more of a protocol integrated circuit IC, a digital circuit, an analog circuit, a general purpose input output GPIO circuit.

In one possible implementation, the power supply device further includes a first feedback interface connected to the power module; the power receiving equipment further comprises a second feedback interface connected with the power receiving module; when the power supply equipment is connected with the power receiving equipment through a cable, the first feedback interface is connected with the second feedback interface through a line in the cable; the first feedback interface is configured to receive feedback information sent by the power receiving module through the second feedback interface; and the power supply module is configured to adjust the electrical parameter of the first direct current to a first value according to the detection value. Therefore, the electrical parameters of the first direct current are always stabilized on the electrical parameters matched with the power supply requirements of the power receiving module through the FB regulation of the closed loop, and the defects of insufficient power supply or power waste caused by unstable electrical parameters of the first direct current are avoided.

In one possible implementation manner, in order to implement protection functions of over-current protection, over-voltage protection, under-voltage protection, and the like for the power supply device and the power receiving device, the detection circuit is further connected to the first power supply interface, and is configured to detect an electrical parameter of the first direct current of the first power supply interface. Of course, when the power specification is determined to be not in accordance with the requirement, a corresponding protection mechanism can be triggered, for example, the power supply module is controlled to perform power-off control on the first direct current.

In one possible implementation manner, in order to implement protection functions of overcurrent protection, overvoltage protection, undervoltage protection, and the like for the power supply device and the power receiving device, the detection circuit is further connected to the third power supply interface, and is configured to detect an electrical parameter of the second direct current of the third power supply interface. Of course, when the power specification is determined to be not in accordance with the requirement, a corresponding protection mechanism may be triggered, for example, the power module is controlled to perform power-off control on the second direct current.

In one possible implementation, the power supply device further includes a switch connected between the power module and the first power supply interface; the control end of the switch is connected with the detection circuit; and the detection circuit is configured to control the conduction state of the switch according to the electrical parameter of the first direct current.

In one possible implementation, the power module includes: the first conversion circuit is connected with the power supply and the second conversion circuit, and the second conversion circuit is connected with the first control interface and the first power supply interface; a first conversion circuit configured to convert alternating current received from a power supply into a first direct current; the second conversion circuit is configured to adjust the electrical parameter of the first direct current to a first value according to the first control information acquired at the first control interface and the power supply requirement of the power receiving module indicated by the first control information, and output the first direct current to the first power supply interface. The first conversion circuit may be an alternating current-direct current (AC/DC) conversion circuit, and the second conversion circuit may be a direct current-direct current (DC/DC) conversion circuit.

In one possible implementation manner, the power module comprises a third conversion circuit, and the third conversion circuit is connected with a power supply and a third power supply interface; and the third conversion circuit is configured to convert alternating current received from the power supply into second direct current and output the second direct current to the third power supply interface. The third conversion circuit may be an AC/DC conversion circuit.

In one possible implementation manner, the power module further comprises a fourth conversion circuit, the fourth conversion circuit is connected between the third conversion circuit and the third power supply interface, and the fourth conversion circuit is further connected with the first control interface; the first control interface is further configured to acquire second control information sent by the powered device through the second control interface; and the fourth conversion circuit is configured to adjust the electrical parameter of the second direct current to a second value according to the power supply requirement of the system module indicated by the second control information and output the second direct current to the third power supply interface. The fourth conversion circuit may be a DC/DC conversion circuit.

In one possible implementation manner, the power module further comprises a fourth conversion circuit, and the fourth conversion circuit is connected between the first conversion circuit and the third power supply interface; the first control interface is further configured to acquire second control information sent by the system module through the second control interface; and the fourth conversion circuit is configured to control the fourth conversion circuit to adjust the electrical parameter of the first direct current to a second value according to the second control information and the power supply requirement of the system module indicated by the second control information and output the second value to the third power supply interface. The fourth conversion circuit may be a DC/DC conversion circuit. In order to save the cost, the power receiving module and the system module can also share the same group of the first conversion circuit of the AC/DC conversion circuit.

In a second aspect, a powered device is provided for connecting a power sourcing equipment via a cable. Structurally, the power receiving apparatus includes: the system module is connected with the second control interface and the power receiving module, and the power receiving module is connected with the second power supply interface; the power supply device includes: the power supply module, and the first control interface and the first power supply interface which are connected with the power supply module; when the power receiving equipment is connected with the power supply equipment through a cable, the second control interface is connected with the first control interface through a line in the cable, and the second power supply interface is connected with the first power supply interface through a line in the cable. Functionally, the system module is configured to acquire a power supply requirement of the power receiving module; the second control interface is configured to send first control information to the first control interface, and the first control information is generated by the power supply requirement of the power receiving module acquired by the system module; the power receiving module is configured to receive a first direct current output by the first power supply interface through the second power supply interface, wherein an electrical parameter of the first direct current is associated with a power supply requirement of the power receiving module indicated by the first control information.

In one possible implementation, the system module is configured to power up before the power demand of the power receiving module is obtained.

In one possible implementation, the powered device includes a battery, the battery being connected to the system module; the battery is configured to output a second direct current to the system module and power up the system module.

In one possible implementation, the powered device includes a conversion circuit connected between the second power supply interface and the system module; the conversion circuit is configured to convert the first direct current into the second direct current and output the second direct current to the system module, and the system module is electrified.

In one possible implementation, the powered device further includes: a fourth power supply interface connected with the system module; the power supply apparatus further includes: the third power supply interface is connected with the power supply module; when the power receiving equipment is connected with the power supply equipment through a cable, the fourth power supply interface is connected with the third power supply interface through a line in the cable; and the system module is configured to receive the second direct current output by the power supply module through the third power supply interface through the fourth power supply interface and electrify the system module.

In one possible implementation, a system module is configured to obtain a power supply requirement of the system module; the second control interface is further configured to send second control information to the second control interface, wherein the second control information is generated by the power supply requirement of the system module acquired by the system module; and the system module is configured to receive a second direct current output by the power supply equipment through the third power supply interface through the fourth power supply interface, electrify the system module, and associate the electrical parameter of the second direct current with the power supply requirement of the system module indicated by the second control information.

In one possible implementation, the powered device further includes a feedback circuit connected between the system module and the second control interface; the power supply equipment further comprises a detection circuit; the detection circuit is connected between the power supply module and the first control interface; the feedback circuit is configured to generate first control information according to the power supply requirement of the power receiving module acquired by the system module; and a feedback circuit configured to send the first control information to the second control interface.

In one possible implementation, the powered device further includes a feedback circuit connected between the system module and the second control interface; the power supply equipment further comprises a detection circuit, and the detection circuit is connected between the power supply module and the first control interface; the feedback circuit is configured to generate the second control information according to the power supply requirement of the system module acquired by the system module; and a feedback circuit further configured to send the second control information to the second control interface.

In a possible implementation manner, the power receiving module is further configured to detect an electrical parameter of the first direct current received by the second power supply interface, and generate a detection value; the power receiving device is further configured to send feedback information to the power supply device, where the feedback information carries the detection value.

In one possible implementation, the powered device further includes a feedback circuit connected between the powered module and the second control interface; the power supply equipment further comprises a detection circuit, wherein the detection circuit is connected between the power supply module and the first control interface; the power receiving module is configured to send a detection value of the electrical parameter of the first direct current to the feedback circuit; and the feedback circuit is configured to generate feedback information according to the detection value and send the feedback information to the second control interface.

In one possible implementation, the powered device further includes a second feedback interface connected with the powered module; the power supply equipment further comprises a first feedback interface connected with the power supply module; when the power receiving equipment is connected with the power supply equipment through the cable, the second feedback interface port is connected with the first feedback connection through a circuit in the cable; the power receiving module is configured to detect the electrical parameter of the first direct current received by the second power supply interface and generate the detection value; the power receiving module is specifically configured to send feedback information to the second feedback interface, wherein the feedback information carries the detection value.

In one possible implementation, the feedback circuit includes one or more of a protocol IC, a digital circuit, an analog circuit, a GPIO circuit.

In a third aspect, a detection circuit applied to a power supply apparatus for connecting a power receiving apparatus through a cable, the power supply apparatus comprising: the power supply equipment further comprises a detection circuit, wherein the detection circuit is connected between the power supply module and the first control interface; the power receiving apparatus includes: the power receiving device comprises a system module, a power receiving module, a second control interface and a second power supply interface, wherein the system module is connected with the second control interface and the power receiving module; when the power supply equipment is connected with the power receiving equipment through a cable, the first control interface is connected with the second control interface through a line in the cable, and the first power supply interface is connected with the second power supply interface through a line in the cable; the detection circuit is configured to detect first control information received by the first control interface to generate a power supply requirement of the power receiving module; the first control information is generated by a feedback circuit according to the power supply requirement of the power receiving module acquired by the system module; the first control information is used for controlling the power supply module to convert alternating current received from the power supply into first direct current and output the first direct current to the first power supply interface, wherein the electrical parameter of the first direct current is adjusted to a first value by the power supply module according to the power supply requirement of the power receiving module indicated by the first control information.

In one possible implementation, the power supply device further includes: the third power supply interface is connected with the power supply module; the power receiving equipment further comprises a fourth power supply interface connected with the system module; when the power supply equipment is connected with the power receiving equipment through a cable, the third power supply interface is connected with the fourth power supply interface through a line in the cable; the detection circuit is further configured to detect the power supply requirement of the second control information generation system module received by the first control interface; the second control information is generated by a feedback circuit according to the power supply requirement of the system module acquired by the system module; the second control information is used for controlling the power supply module to convert alternating current received from the power supply into second direct current and output the second direct current to the third power supply interface, wherein the electrical parameter of the second direct current is adjusted to a second value by the power supply module according to the power supply requirement of the system module indicated by the second control information.

In one possible implementation, the detection circuit is configured to detect feedback information received by the first control interface to generate a detection value of an electrical parameter of the first direct current; the detection value of the electrical parameter of the first direct current is generated by detecting the first direct current received by the second power supply interface by the power receiving equipment; the detection value is used for controlling the power supply module to adjust the electrical parameter of the first direct current to a first value.

In one possible implementation, the detection circuit is further connected to the first power supply interface and configured to detect an electrical parameter of the first direct current of the first power supply interface.

In a possible implementation, the detection circuit is further connected to the third power supply interface and configured to detect an electrical parameter of the second direct current of the third power supply interface.

In a fourth aspect, there is provided a feedback circuit applied to a power receiving apparatus for connecting a power supply apparatus through a cable, the power receiving apparatus including: the power receiving device comprises a system module, a power receiving module, a second control interface and a second power supply interface, wherein the system module is connected with the second control interface and the power receiving module; the power supply device includes: the power supply equipment further comprises a detection circuit, wherein the detection circuit is connected between the power supply module and the first control interface; when the power receiving equipment is connected with the power supply equipment through a cable, the second control interface is connected with the first control interface through a line in the cable, and the second power supply interface is connected with the first power supply interface through a line in the cable; the feedback circuit is configured to generate first control information according to the power supply requirement of the power receiving module acquired by the system module; and the feedback circuit is further configured to send first control information to the second control interface, wherein the first control information is used for controlling the power supply module to convert alternating current received from the power supply into first direct current and output the first direct current to the first power supply interface, and the electrical parameter of the first direct current is associated with the power supply requirement of the power receiving module indicated by the first control information.

In one possible implementation, the power supply device further includes: the third power supply interface is connected with the power supply module; the power receiving equipment further comprises a fourth power supply interface connected with the system module; when the power receiving equipment is connected with the power supply equipment through a cable, the fourth power supply interface is connected with the third power supply interface through a line in the cable; the feedback circuit is configured to generate second control information according to the power supply requirement of the system module acquired by the system module; and the feedback circuit is further configured to send second control information to the second control interface, wherein the second control information is used for controlling the power supply module to convert alternating current received from the power supply into second direct current and output the second direct current to the third power supply interface, and the electrical parameter of the second direct current is associated with the power supply requirement of the system module indicated by the second control information.

In one possible implementation, the feedback circuit is configured to send feedback information to the second control interface, the feedback information carrying a detected value of an electrical parameter of the first direct current; the detection value of the electrical parameter of the first direct current is generated by detecting the first direct current received by the second power supply interface by the power receiving module.

In a fifth aspect, a power supply control method is provided and applied to a power supply device, where the power supply device includes a power supply module, and the method includes: receiving first control information sent by a power receiving device, wherein the first control information is generated by the power supply requirement of a power receiving module of the power receiving device; and outputting a first direct current to the power receiving module of the power receiving equipment according to the power supply requirement of the power receiving module indicated by the first control information, wherein the electrical parameter of the first direct current is adjusted to a first value by the power supply module according to the power supply requirement of the power receiving module.

In one possible implementation, the method further includes: and controlling the power supply module to output a second direct current to a system module of the power receiving module, wherein the system module is used for acquiring the power supply requirement of the power receiving module.

In one possible implementation, the method further includes: receiving second control information sent by the power receiving equipment, wherein the second control information is generated by the power supply requirement of the system module acquired by the power receiving equipment; and controlling the power supply module to adjust the electrical parameter of the second direct current to a second value according to the power supply requirement of the system module indicated by the second control information.

In one possible implementation manner, after receiving the first control information sent by the power receiving device, the method further includes: and detecting the first control information to generate the power supply requirement of the power receiving module.

In one possible implementation manner, after receiving the second control information sent by the power receiving device, the method further includes: and detecting the second control information to generate the power supply requirement of the system module.

In one possible implementation, the method further includes: receiving feedback information sent by the power receiving equipment, wherein the feedback information is generated by detecting a detection value of an electrical parameter of the first direct current after the power receiving equipment receives the first direct current; and adjusting the electrical parameter of the first direct current to the first value according to the detection value.

In one possible implementation manner, after receiving the feedback information sent by the power receiving device, the method further includes: and detecting the feedback information to obtain the detection value.

A sixth aspect provides a power supply control method for a power receiving apparatus, the power receiving apparatus including a power receiving module; the method comprises the following steps: acquiring the power supply requirement of the power receiving module; transmitting first control information to the power supply equipment, wherein the first control information is generated by the power supply requirement of the power receiving module; and receiving a first direct current output by the power supply equipment, and supplying power to the power receiving module through the first direct current, wherein an electrical parameter of the first direct current is associated with the power supply requirement of the power receiving module indicated by the first control information.

In one possible implementation, the powered device further includes a system module, and the method further includes: before the power supply requirement of the power receiving module is acquired, the system module is electrified, and the system module is used for acquiring the power supply requirement of the power receiving module.

In one possible implementation, the powered device further includes a battery; the method further comprises the steps of: and outputting a second direct current to the system module through the battery, and electrifying the system module.

In one possible implementation, the powered device includes a conversion circuit, and the method further includes: and converting the first direct current into a second direct current through the conversion circuit and outputting the second direct current to the system module, and electrifying the system module.

In one possible implementation, the method further includes: receiving a second direct current output by the power supply equipment; and powering up the system module through the second direct current.

In one possible implementation, the method further includes: acquiring the power supply requirement of the system module; transmitting second control information to the power supply equipment, wherein the second control information is generated by the power supply requirement of the system module; transmitting the second control information to the power supply device; and receiving a second direct current output by the power supply equipment, wherein an electrical parameter of the second direct current is associated with the power supply requirement of the system module indicated by the second control signal.

In a possible implementation manner, the first control information is sent to the power supply device before; further comprises: and generating the first control information according to the power supply requirement of the power receiving module.

In a possible implementation manner, the second control information is sent to the power supply device before; further comprises: and generating the second control information according to the power supply requirement of the system module.

In one possible implementation, detecting an electrical parameter of the first direct current to generate a detection value; and sending feedback information to the power supply equipment, wherein the feedback information carries the detection value.

In one possible implementation manner, before the feedback information is sent to the power supply device, the method further includes: and generating the feedback information according to the detection value.

In a seventh aspect, a power supply control device is provided, including a processor and an interface, where the processor is connected with the interface; the processor is configured to execute program instructions in the memory to perform the power supply control method as described in the fifth aspect, the sixth aspect and any one of its possible implementation manners.

In an eighth aspect, a chip is provided comprising a substrate, and a detection circuit as described in the third aspect and possible implementations thereof, or a feedback circuit as described in the fourth aspect and possible implementations thereof, provided on the substrate.

A ninth aspect provides a power supply system comprising a power supply device as described in the first aspect and its possible implementation forms and a powered device as described in the second aspect and its possible implementation forms.

In one possible implementation, the power supply device includes a power box and the powered device includes an ultra-thin display device.

The technical problems and the technical effects of the second to ninth aspects and the possible implementation manners thereof may be referred to the description in the first aspect and the possible implementation manners thereof, and are not repeated herein.

Drawings

Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a power supply system according to an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a power supply system according to another embodiment of the present application;

fig. 4 is a schematic structural diagram of a power supply system according to another embodiment of the present application;

Fig. 5 is a schematic structural diagram of a power supply system according to still another embodiment of the present application;

Fig. 6 is a schematic structural diagram of a power supply system according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a power supply system according to another embodiment of the present application;

Fig. 8 is a schematic structural diagram of a power supply system according to still another embodiment of the present application;

fig. 9 is a schematic structural diagram of a power module according to an embodiment of the application;

Fig. 10 is a schematic structural diagram of a power module according to another embodiment of the present application;

fig. 11 is a schematic structural diagram of a power module according to another embodiment of the present application;

fig. 12 is a schematic structural diagram of a power module according to still another embodiment of the present application;

Fig. 13 is a schematic structural diagram of a power supply system according to another embodiment of the present application;

fig. 14 is a schematic structural diagram of a power supply system according to another embodiment of the present application;

fig. 15 is a schematic structural diagram of a power supply system according to still another embodiment of the present application;

fig. 16 is a schematic structural diagram of a power supply system according to another embodiment of the present application;

fig. 17 is a schematic flow chart of a power supply control method according to an embodiment of the present application;

FIG. 18 is a flowchart of a power supply control method according to another embodiment of the present application;

Fig. 19 is a schematic structural diagram of a power supply control device according to an embodiment of the present application;

Fig. 20 is a schematic structural diagram of a power supply control device according to another embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments obtained by a person skilled in the art based on the embodiments provided by the present application fall within the scope of protection of the present application.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

The technical scheme in the embodiment of the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a terminal device 100 according to an embodiment of the present application. The terminal device 100 may be a large screen terminal device such as an advertisement screen (billboard), a display, a television (e.g., smart screen), a notebook computer, a tablet computer, a vehicle-mounted device, etc. Alternatively, in some scenarios, the terminal device 100 may be a mobile phone, an electronic reader, or a wearable device. The embodiment shown in fig. 1 is illustrated taking a terminal device 100 as an example of a display device.

The terminal device 100 may include a housing 110 and a screen assembly 120.

The housing 110 may include a bezel and a rear cover. The frame can be arranged around the periphery of the rear cover. The housing 110 may include, for example, a center frame of the terminal device 100. In one example, the middle frame of the terminal device 100 may be received in the inner periphery of the rim. In another example, the middle frame of the terminal device 100 may serve as a bezel for the housing 110. The screen assembly 120 may be an assembly that provides display functionality for the terminal device 100. The user may view the screen assembly 120 to enjoy media assets such as images, video, and the like. The screen assembly 120 may be mounted to the housing 110. The periphery of the screen assembly 120 may rest against the inner edge of the bezel. The bezel may secure the screen assembly 120 to the housing 110. The screen assembly 120 and the rear cover may be mounted to both sides of the bezel, respectively, such that the housing 110 may provide mechanical protection for components within the terminal device, particularly components on the screen assembly 120. The screen assembly 120 may be fixed to a center frame of the terminal device 100, for example. In some examples, the screen assembly 120 may include a backlight module and a liquid crystal panel disposed on a light emitting side of the backlight module. In order to control the lamp panel and the liquid crystal panel in the backlight module to display images, the terminal device 100 may include a processor, a memory, a controller, a connector, a driving board, an integrated circuit, a chip, a power supply, and other control modules.

In order to reduce the thickness of the whole terminal device 100 and the influence of heat dissipation of the power supply on the whole terminal device, the industry generally designs a large-sized power supply and the whole terminal device separately.

With reference to fig. 2, a power supply system is provided in which a power supply and a terminal device are separately designed. Referring to fig. 2, the power supply system includes a terminal device as the power receiving device 100 and a power supply device 200 as a power source. The power receiving apparatus 100 and the power feeding apparatus 200 are connected by a cable 300. The power supply 200 is also referred to as a power DOCK (DOCK), power box, adapter, etc. in some examples. Wherein, connectors for plugging the cable 300 are provided on the powered device 100 and the power supply device 200, and typically, interfaces (or pins) are provided on the connectors, and the interfaces or pins are used for connecting modules in the powered device 100 and the power supply device 200, for example, interfaces in the connectors on the powered device 100 are used for connecting a system module 101, a power receiving module (for example, a light board 102) and the like in the powered device 100; the interface inside the connector on the power supply apparatus 200 is used to connect the power supply module 201 and so on; in addition, these interfaces or pins also provide for plugging with the cable 300, thereby communicating the interface inside the connector on the powered device 100 with the interface inside the connector on the power sourcing equipment 200 through the line inside the cable 300, thereby enabling communication of the module inside the power sourcing equipment 200 with the module inside the powered device 100.

As shown in fig. 2, the power supply apparatus 200 includes a power supply module 201 therein, and the power supply module 201 includes an AC/DC conversion circuit for converting 220V AC mains power into one or more direct currents for powering the power receiving apparatus 100. For example, when power is required to be supplied to the system module 101 and the light panel 102 in the power receiving apparatus 100, the AC/DC conversion circuit 201 may convert the commercial power into Vsys for supplying power to the system module 101 and VLED for supplying power to the light panel 102, respectively. The AC/DC conversion circuit includes, but is not limited to, one or more voltage conversion circuits based on an LLC converter or flyback converter. In general, the system module 101 is a control center of the power receiving apparatus 100, and may include, for example, a processor, a memory, a bus, an interface, and the like, and in some examples, the system module may be an integrated circuit having a logic processing function, such as a System On Chip (SOC), a central processing unit (central processing unit, CPU), a micro control unit (microcontroller unit, MCU), a field-programmable gate array (FPGA), and the like; the light panel 102 is a power receiving module of the power receiving apparatus 100, however, in the embodiment of the present application, the power receiving module is mainly described by taking the light panel 102 as an example, and other types of power receiving modules, such as other power consuming circuits of a radio frequency, a power amplifier, and the like, are generally also included in the power receiving apparatus 100.

As described above, although the whole split design of the power supply and the terminal device is beneficial to the whole ultrathin design of the terminal, the split scheme brings about the problem of interface and cable universality, if the customized interface and the customized cable are adopted, the customized interface, cable and power supply are required to be designed for the terminal devices with different power supply requirements, which results in higher cost. If the terminal devices with different power supply requirements adopt generalized interfaces, cables and power supplies, the universality is poor when the power supplies for providing the power supply voltage are matched due to the fact that the different terminal devices have different power supply requirements, namely, the same power supply cannot be generally matched with the terminal devices with different power supply requirements, so that when the same power supply is interconnected with different terminal devices through the universal interfaces and the universal cables, the terminal devices can not work normally due to insufficient power supply voltage or the power supply voltage exceeds the rated voltage of the terminal devices, the terminal devices are damaged, and in a generalized scheme, the different terminal devices and the power supplies are combined with each other and cannot stay (fool-proofing) when being interconnected through the generalized interfaces and the cables.

To solve the above-described problems, referring to fig. 3, an embodiment of the present application provides a power supply system including a power supply apparatus 200 and a power receiving apparatus 100. The power supply apparatus 200 is connected to the power receiving apparatus 100 through a cable 300, and the power supply apparatus 200 is configured to supply power to the power receiving apparatus 100.

The power supply apparatus 200 includes: the power module 201, and a first control interface 202 and a first power supply interface 203 connected to the power module 201. The power receiving apparatus 100 includes: the system module 101, the lamp plate 102, the second control interface 103 and the second power supply interface 104, the system module 101 is connected with the second control interface 103 and the lamp plate 102, and the lamp plate 102 is connected with the second power supply interface 104.

When the power supply apparatus 200 is connected to the power receiving apparatus 100 through the cable 300, the first control interface 202 is connected to the second control interface 103 through a line in the cable, so that a transmission path of control information is formed between the system module 101 and the power supply module 201; the first power supply interface 203 is connected to the second power supply interface 104 through a line in the cable 300, so that a transmission path of a power supply signal is formed between the lamp panel 102 and the power supply module 201.

Based on the above-described hardware configuration shown in fig. 3, the specific functions of each module in each power receiving apparatus 100 and power feeding apparatus 200 are described as follows:

a system module 101 configured to obtain a power supply requirement of the lamp panel 102; a second control interface 103 configured to send first control information to the first interface, where the first control information is generated by a power supply requirement of the lamp panel 102 acquired by the system module 101; since the first control interface 202 is connected to the second control interface 103 via line 3 in the cable 300, the first control information can be directly transmitted to the first control interface 202.

A first control interface 202 configured to obtain first control information sent by the power receiving device 100 through the second control interface 103, where the first control information is generated by the power receiving device 100 according to a detection result of a power supply requirement of the light panel 102; the first control information may be the power supply requirement of the lamp panel 102, and the power supply requirement of the lamp panel 102 may include electrical parameters determined by a device specification, manufacturer information, a backlight power supply scheme (e.g., lamp panel power supply parameters under different backlight power consumption scenarios, lamp panel power supply parameters under different backlight brightness scenarios, etc.), and may be, for example, voltage, current, and power.

The power supply module 201 is configured to output a first direct current to the first power supply interface according to the power supply requirement of the lamp panel 102 indicated by the first control information, for example, convert the received alternating current into a first direct current Vled and output the first direct current Vled to the first power supply interface 203, where an electrical parameter of the first direct current Vled is adjusted to a first value by the power supply module 201 according to the power supply requirement of the lamp panel 102 indicated by the first control information. Since the first power supply interface 203 is connected to the second power supply interface 104 through the line 1 in the cable 300, the first direct current Vled may be directly transmitted to the second power supply interface 104. For example, the first value may be a voltage, a current, and a power corresponding to a power supply requirement of the lamp panel 102. In fig. 3, the power module 201 may include an AC/DC conversion circuit and a DC/DC conversion circuit, where an input end of the AC/DC conversion circuit is used for inputting an alternating current, for example, may be 220V alternating current, and the AC/DC conversion circuit may convert the alternating current into a first direct current Vled; in addition, the DC/DC conversion circuit may adjust an electrical parameter of the first direct current Vled according to a power supply requirement of the lamp panel indicated by the first control information.

The lamp panel 102 is configured to receive the first direct current Vled output by the first power supply interface 203 through the second power supply interface 104. Thus, the lamp panel 102 is powered by the first direct current Vled.

In the above example, since the power receiving device may detect the power supply requirement of the light panel through the system module and generate the first control information for indicating the power supply requirement of the light panel, the power supply device may control the electrical parameter of the direct current output to the power receiving module according to the first control information, and since the first control information may reflect the power supply requirement of the light panel, that is, the power supply requirement of the light panel indicated by the first control information is associated with the electrical parameter of the direct current output to the power receiving module, flexible adjustment of power supply to the power receiving device may be achieved, especially for the power receiving device with different power supply requirements, since the scheme provided by the embodiment of the application may enable flexible adjustment of power supply to the power receiving device, it is also ensured that the power receiving device with different power supply requirements can be supported by the power receiving device.

In some possible implementations, referring to fig. 3, the power supply apparatus 200 may further include: a third power supply interface 204 connected to the power module 201; the power receiving apparatus 100 further includes a fourth power supply interface 105 connected to the system module 101; when the power supply apparatus 200 is connected to the power receiving apparatus 100 via the cable 300, the third power supply interface 204 is connected to the fourth power supply interface 105 via the line 2 in the cable 300.

The power module 201 is configured to convert the received ac power into a second dc power Vsys and output the second dc power to the third power supply interface 204. The system module 101 is configured to receive, through the fourth power supply interface 105, the second direct current Vsys output by the power supply module 201 through the third power supply interface 204, the second direct current Vsys being generated by converting the received alternating current by the power supply module 201. In general, the number of AC/DC conversion circuits and DC/DC conversion circuits in the power supply module 201 is not limited, and for example, in an example of the present application, the power supply module 201 may have another set of AC/DC conversion circuits and DC/DC conversion circuits, wherein the another set of AC/DC conversion circuits and DC/DC conversion circuits may convert AC power into a second DC power Vsys, and directly supply power to the system module 101 through the second DC power Vsys. Here, the electrical parameters of Vsys should be such as to meet the minimum operational requirements of the system module 101.

In this way, the power supply device can power up the system module 101 to detect and acquire the power supply requirement of the lamp panel 102 through the system module 101, so as to ensure that the system module can work normally when the second direct current Vsys supplies power. Of course, in some examples, to reduce the cost, a set of AC/DC conversion circuits may be provided in the power module 201, and two sets of DC/DC conversion circuits may share the same set of AC/DC conversion circuit output to supply power to the lamp panel and the system module respectively.

In addition, in some examples, when the system module 101 is powered on, the electrical parameter of the second direct current Vsys may be further adjusted according to the power supply requirement of the system module 101. For example, the system module 101 is configured to generate the second control information according to the power supply requirement of the system module 101; the power supply requirement of the system module 101 may include an electrical parameter determined by a load state (light load or heavy load) of the system module, an operating state (for example, screen-off, or screen-on, power on or standby, etc.), and may be, for example, voltage, current, and power. The system module 101 is further configured to send second control information to the second control interface 103. The first control interface 202 is further configured to obtain second control information sent by the system module 101 through the second control interface 103; the power module 201 is configured to adjust an electrical parameter of the second direct current Vsys to a second value according to the second control information acquired by the first control interface 202 and output the second value to the third power supply interface 204. The second value may be, for example, a voltage, a current, and a power corresponding to a power supply requirement of the system module 101. The system module 101 is configured to receive, through the fourth power supply interface 105, the second direct current Vsys output by the power supply module 201 through the third power supply interface 204. Therefore, the second control information can reflect the power supply requirement of the system module, namely, the power supply requirement of the lamp panel indicated by the second control information is associated with the electrical parameter of the direct current output to the system module, so that the flexible adjustment of the power supply of the system module can be realized.

Referring to fig. 4, in some examples, in order to first power up the system module 101, the power receiving apparatus 100 may be provided with a battery 108 connected to the system module 101, and the second direct current Vsys may be directly supplied to the system module 101 by the battery 108, or, in some examples, as shown in fig. 5, the second direct current Vsys may be generated by converting an electrical parameter of the first direct current by a conversion circuit 109 (for example, may be DC/DC) connected between the second power supply interface 104 and the system module 101.

In order to ensure that the power module 201 can output the stable first dc voltage Vled according to the power supply requirement of the lamp panel 102 under the control of the first control information, a closed-loop Feedback (FB) adjustment mechanism may be further introduced in the embodiment of the present application. That is, referring to fig. 6, the power supply apparatus 200 further includes a first feedback interface 205 connected to the power module 201; the powered device 100 further includes a second feedback interface 106 connected to the light panel 102; when the power supply apparatus 200 is connected to the power receiving apparatus 100 through the cable 300, the first feedback interface 205 is connected to the second feedback interface 106 through the line 4 in the cable 300; the first feedback interface 205 is configured to receive feedback information sent by the lamp panel 102 through the second feedback interface 106, where the feedback information may carry a detection value of an electrical parameter of the first direct current Vled, where the detection value is generated by the lamp panel 102 detecting the electrical parameter of the first direct current Vled received by the second power supply interface 105; the power module 201 is configured to adjust the electrical parameter of the first direct current Vled to a first value according to the detected value. Thus, the first direct current Vled electrical parameter is always stabilized on the electrical parameter matched with the power supply requirement of the lamp panel 102 through the closed-loop FB adjustment, and the power supply power shortage or power waste caused by the unstable first direct current Vled electrical parameter is avoided.

In some examples, embodiments of the present application are not limited to a particular form of the first control information, the second control information, and the feedback information. For example, the first control information and the second control information may be one or more of protocol signals generated by the system module 101 after directly detecting the power requirement of the lamp panel 102 and the power requirement of the system module itself, or one or more of digital signals (for example, pulse width modulation (pulse width modulation) signals), analog signals, and general-purpose input/output (GPIO) signals, and the like, and are transmitted to the power module 201 through the line 3 in fig. 6. The feedback information may be a first dc Vled electrical parameter value directly detected by the lamp panel 102, and is fed back to the power module 201 through the line 4. Of course, the two types of signals need to be transmitted through the line 3 and the line 4 in the cable, so that the design difficulty for supporting the forward and reverse plugging is high in the design of the connector and the cable. Accordingly, the power supply apparatus 200 provided by the embodiment of the present application shown with reference to fig. 6 and 7 further includes the detection circuit 206, and the power receiving apparatus 100 may further include the feedback circuit 107. In this way, the power supply requirement of the lamp panel, the power supply requirement of the system module and the detection value can be respectively converted into the first control information, the second control information and the feedback information with the fixed format by the feedback circuit 107, then transmitted to the detection circuit 206 through the line 3, and the detection circuit 206 detects the power supply requirement of the corresponding lamp panel, the power supply requirement of the system module and the detection value in the first control information, the second control information and the feedback information with the fixed format, and then transmits the power supply requirement, the power supply requirement and the detection value to the power module 201, so as to realize the corresponding control in the above example for the power module 201.

Specifically, referring to fig. 8, for the transmission procedure of the first control information: the power supply device 200 further includes a detection circuit 206, where the detection circuit 206 is connected between the power module 201 and the first control interface 202; the powered device 100 further comprises a feedback circuit 107, the feedback circuit 107 being connected between the system module 101 and the second control interface 103. The feedback circuit 107 is configured to generate the first control information according to the power supply requirement of the lamp panel 102 acquired by the system module 101. The feedback circuit 107 is further configured to send the first control information to the second control interface 103. The first control interface 202 is further configured to receive first control information sent by the feedback circuit 107 through the second control interface 103; the detection circuit 206 is configured to detect a power supply requirement of the first control information generating lamp panel 102.

For the transmission procedure of the second control information: the feedback circuit 107 is configured to generate the second control information according to the power supply requirement of the system module 101 acquired by the system module 101. The feedback circuit 107 is further configured to send second control information to the second control interface 103. The first control interface 202 is further configured to receive second control information sent by the feedback circuit 107 through the second control interface 103; the detection circuit 206 is configured to detect a power supply requirement of the second control information generating system module 101.

For the transmission process of feedback information: the lamp panel 102 is configured to detect an electrical parameter of the first direct current received by the second power supply interface 105, and generate a detection value of the electrical parameter of the first direct current; the lamp panel 102 is further configured to send the detected value of the electrical parameter of the first direct current to the feedback circuit 107; the feedback circuit 107 is configured to send feedback information to the second control interface 103, the feedback information carrying the detection value. The power supply device 200 further includes a detection circuit 206, where the detection circuit 206 is connected between the power module 201 and the first control interface 202; a first control interface 202 configured to receive feedback information sent by the feedback circuit 107 through the second control interface 103, where the feedback information carries a detected value of an electrical parameter of the first direct current; a detection circuit 206 configured to detect the feedback information to obtain a detection value; the power module 201 is configured to adjust an electrical parameter of the first direct current to a first value according to the detection value.

Optionally, in this example, since the feedback information carrying the detection value is multiplexed to be transmitted through the first control interface 202 and the second control interface 103, the detection value may be transmitted to the detection circuit 206 through the feedback circuit 107, so that one line 4 may be reduced between the power supply apparatus 200 and the power receiving apparatus 100, that is, each control information may be transmitted through one line, so that the first control information, the second control information, and the feedback information may be transmitted through only one line during the cable design, and thus, plugging of the interfaces in the corresponding connectors may be achieved through only one pin in the cable, which is more beneficial to supporting the forward and backward plugging design of the cable.

Of course, in order to realize the generation and detection of the above-described respective feedback information, the detection circuit 206 and the feedback circuit 107 need to employ circuits having respective signal conversion functions, such as: the detection circuit and the feedback circuit may include one or more of a protocol IC, a digital circuit, an analog circuit, and a GPIO circuit.

The specific structure of the power supply module in the following scheme is described as follows:

in order to supply power to the lamp panel, referring to fig. 9, the power module 201 may include a first conversion circuit 2011 and a second conversion circuit 2012, wherein the first conversion circuit 2011 may be an AC/DC conversion circuit, and the second conversion circuit 2012 may be a DC/DC conversion circuit. The first conversion circuit 2011 is connected to the second conversion circuit 2012, and the second conversion circuit 2012 is connected to the first control interface 202 and the first power supply interface 203; a first conversion circuit 2011 configured to convert the received alternating current into a first direct current; the second conversion circuit 2012 is configured to adjust an electrical parameter of the first direct current to a first value according to the power supply requirement of the lamp panel indicated by the first control information acquired at the first control interface 202 and output the first direct current to the first power supply interface 203.

In addition, in order to supply power to the system module, referring to fig. 9, the power module 201 includes a third conversion circuit 2013, where the third conversion circuit 2013 is connected to the third power supply interface 204; the third conversion circuit 2013 is configured to convert the received ac power into the second dc power and output the second dc power to the third power supply interface 204. The third conversion circuit 2013 may be an AC/DC conversion circuit.

Of course, in order to implement adjustment of the electrical parameter of the second direct current output to the system module, referring to fig. 10, the power module 201 may further include a fourth conversion circuit 2014, where the fourth conversion circuit 2014 is connected between the third conversion circuit 2013 and the third power supply interface 204, and the fourth conversion circuit 2014 is further connected to the first control interface 202; the fourth conversion circuit 2014 may be a DC/DC conversion circuit. The first control interface 202 is further configured to obtain second control information sent by the powered device through the second control interface; the fourth conversion circuit 2014 is configured to adjust the electrical parameter of the second direct current to a second value according to the power supply requirement of the system module indicated by the second control information and output the second direct current to the third power supply interface 204.

In the examples of fig. 9 and 10 described above, the lamp panel power supply and the system module power supply each employ independent AC/DC conversion circuits. In order to save cost, the lamp panel power supply and the system module can also share the same group of AC/DC conversion circuits. Referring to fig. 11, the power module 201 may include a first conversion circuit 2011 and a second conversion circuit 2012, and a fourth conversion circuit 2014, where a connection relationship and a functional description of the first conversion circuit 2011 and the second conversion circuit 2012 may be shown with reference to fig. 7, and a difference is that the power module 201 in fig. 11 further includes the fourth conversion circuit 2014, and the fourth conversion circuit 2014 is connected between the first conversion circuit 2011 and the third power supply interface 204; the first control interface 202 is further configured to obtain second control information sent by the system module through the second control interface, and the fourth conversion circuit 2014 is configured to control the electrical parameter of the first direct current to be adjusted to a second value and output to the third power supply interface 204 according to the power supply requirement of the system module indicated by the second control information.

Of course, the examples of the power supply modules provided in fig. 9-11 are only some alternative examples, and those skilled in the art can further adjust and expand the power supply modules to more structures. For example: referring to fig. 12, the first conversion circuit 2011 may be specifically a rectifying circuit, and an electromagnetic compatibility (electromagnetic compatibility, EMI) filter protection circuit may be further disposed at an input end and an output end of the rectifying circuit, and a power factor correction (power factor correction, PFC) circuit for power factor adjustment may be further disposed at an output end of the rectifying circuit. In addition, in the example shown in fig. 10, the fourth conversion circuit 2014 may specifically employ a flyback conversion circuit with higher low power efficiency or a resonant (LLC) conversion circuit with higher high power efficiency according to the actual power supply requirements of Vsys. Since the second converter circuit 2012 is mainly used for supplying power to the lamp panel; and in order to fit the dynamic range of the backlight, the power range of the lamp panel is wider (there may be a larger power and a smaller power), so the second converter circuit 2012 may employ an LLC converter circuit with higher efficiency in the high power range. In addition, as shown in fig. 12, vsys and Vled may also share the second conversion circuit 2012, so that multiple sets of DC/DC conversion circuits may be disposed behind the second conversion circuit 2012 to supply power to the system module and the lamp panel, respectively. Specifically, after the second conversion circuit 2012, the first control information may be used to control the set of DC/DC conversion circuits to adjust the electrical parameter of the first direct current output by the second conversion circuit 2012 to generate Vled; the second control information is used to control another set of DC/DC conversion circuits to adjust the electrical parameters of the first direct current output by the second conversion circuit 2012 to generate Vsys. In addition, vsys may also be used to power the power supply device, for example, to control circuitry in the power supply module, in order to achieve normal operation of the power supply device.

Referring to fig. 13, in order to implement protection functions such as overcurrent protection, overvoltage protection, undervoltage protection, and the like for the power supply device and the power receiving device, the embodiment of the present application may further provide a scheme for detecting the power supply specification of the first direct current Vled on the line 1 and the second direct current Vsys on the line 2. The detection circuit 206 is further connected to the first power supply interface 203 and the third power supply interface 204, and is configured to detect an electrical parameter of the first direct current of the first power supply interface 203 and detect an electrical parameter of the second direct current of the third power supply interface 204, as shown in fig. 13. Of course, when the power specification is determined to be not in compliance with the requirement, a corresponding protection mechanism, such as power-off control of the power supply module, can be triggered. In addition, referring to the power supply apparatus shown in fig. 13, the power supply apparatus may further include a switch K1 connected between the power supply module 201 and the first power supply interface 203; the control end of the switch K1 is connected to the detection circuit 206; the detection circuit 206 is configured to control the on state of the switch according to the electrical parameter of the first direct current, so that the on-off of the power supply to the lamp panel can be independently realized.

In addition, in the embodiment of the present application, the detection circuit 206 of the power supply apparatus 200 and the feedback circuit 107 of the power receiving apparatus 100 may also be supplied with power by Vsys. The feedback circuit 107 may perform power supply specification detection on Vsys and feed back the detection result to the detection circuit 206, and the detection circuit 206 may perform closed-loop dynamic adjustment on Vsys. In addition, the detection value of the electrical parameter of the second direct current output by the lamp panel 102 may be transmitted to the detection circuit 206 via the line 4, and the detection circuit 206 controls the power module 201 to perform closed-loop dynamic adjustment on the electrical parameter of the second direct current Vsys according to the detection value.

The form of the cable 300 is not limited in the embodiment of the present application, where a cable IC may be disposed in the cable 300, for example, the cable may be an electronic tag cable (electronically marked cable, E-Marker), and the cable IC may store a cable electronic tag, so that in the embodiment of the present application, the powered device may dynamically adjust the output dc within the range corresponding to the cable electronic tag, thereby avoiding damage to the cable.

In fig. 14, it is also shown that a specific form of the feedback circuit 107 and the detection circuit 206 may employ a protocol IC; also shown in fig. 15 is whether the particular form of feedback circuit 107 and detection circuit 206 may take the form of analog and/or digital circuits; also shown in fig. 16 is whether a particular form of feedback circuit and detection circuit may employ GPIOs. In fig. 13-16, the power module 201 may take any of the configurations of the power modules shown in fig. 9-13.

Based on the above power supply system, an embodiment of the present application provides a power supply control method, referring to fig. 17, including the following steps:

s101, the power supply equipment controls the power supply module to convert the alternating current into a second direct current Vsys and output the second direct current Vsys to the system module of the power receiving equipment.

For example, after the 220V ac power is applied to the power supply device, the power module may convert the 220V ac power into the second dc power Vsys, where the electrical parameter of Vsys may be an initialized default value (default), and the default value may ensure that the system module works normally, so as to detect the power supply requirement of the lamp panel.

S102, the powered device detects power supply requirements of the lamp panel.

Of course, the power supply requirement of the lamp panel is dynamically changed under different working conditions of the powered device, for example, when the service of the whole power supply device is switched, the power supply requirement of the lamp panel is correspondingly changed.

As described above, the power requirements of the light panel may include electrical parameters, such as voltage, current, and power, determined by device specifications, manufacturer information, backlight power schemes (e.g., light panel power parameters in different backlight power consumption scenarios, light panel power parameters in different backlight brightness scenarios, etc.), and so on.

S103, the power receiving equipment generates first control information according to the power supply requirement of the lamp panel.

S104, the power receiving apparatus transmits the first control information to the power supply apparatus.

Specifically, in step S104, when the power supply apparatus includes the detection circuit and the power receiving apparatus includes the feedback circuit as described above, the power receiving apparatus may further generate the first control information in the form of the above-described protocol signal, digital signal, analog signal, GPIO signal, or the like from the power supply requirement of the light panel. For example: s104, specifically, the power receiving device generates first control information according to a power supply requirement on a power receiving module (such as a lamp panel); and sending the first control information to the power supply equipment, wherein the first control information carries the power supply requirement of the lamp panel.

S105, the power supply equipment receives first control information sent by the power receiving equipment.

When the power supply requirement of the lamp panel received by the power supply equipment is the first control information in the form of the protocol signal, the digital signal, the analog signal or the GPIO signal, the power supply equipment is specifically used for detecting the first control information to generate the power supply requirement of the lamp panel.

S106, the power supply equipment outputs a first direct current Vled.

In step S106, the power supply device controls the power supply module to convert the ac power into a first dc power Vled according to the power supply requirement of the lamp panel indicated by the first control information and outputs the first dc power Vled to the power receiving module (lamp panel) of the power receiving device, wherein the electrical parameter of the first dc power Vled is adjusted to a first value by the power supply module according to the power supply requirement of the lamp panel indicated by the first control information.

Wherein after step S106, in order to realize stable output of the first direct current under the corresponding power supply requirement, the power receiving device may be further configured to detect the received electrical parameter of the first direct current Vled, and generate a detected value of the electrical parameter of the first direct current Vled; and carrying the detection value of the electrical parameter of the first direct current in feedback information and sending the feedback information to power supply equipment. Then, the power supply equipment receives the detection value sent by the power receiving module; and controlling the power supply module to adjust the electrical parameter of the first direct current to a first value according to the detection value, thereby realizing closed-loop feedback adjustment of the electrical parameter of the first direct current Vled. Further, the power receiving apparatus may also transmit feedback information in the form of the detected value generated by the detected value, such as the protocol signal, the digital signal, the analog signal, or the GPIO signal, to the power supply apparatus. After receiving feedback information sent by the power receiving equipment, the power supply equipment detects the feedback information to obtain a detection value; and finally, controlling the power supply module to adjust the electrical parameter of the first direct current to a first value according to the detection value.

In addition, referring to fig. 18, the solution provided by the embodiment of the present application may further dynamically adjust the second direct current Vsys, and specifically includes the following steps:

S201, the power receiving equipment detects power supply requirements of the system module.

Of course, the power supply requirement of the system module is dynamically changed under different working conditions of the powered device, for example, when the service of the whole power system is switched, the power supply requirement of the system module is correspondingly changed.

As described above, the power supply requirements of the system module may include electrical parameters, such as voltage, current, and power, determined by the load status (light load or heavy load), the operating status (e.g., off screen, or bright screen, on-state, standby, etc.) of the system module.

S202, the powered device generates second control information according to the power supply requirement of the system module.

S203, the power receiving apparatus transmits the second control information to the power supply apparatus.

Specifically, in step S203, when the power supply apparatus includes the detection circuit and the power receiving apparatus includes the feedback circuit as described above, the power receiving apparatus may further generate the above-described protocol signal, digital signal, analog signal, or GPIO signal from the power supply requirement of the system module. For example: the S203 may specifically be that the power receiving device generates second control information according to a power supply requirement for the system module, and sends the second control information to the power supply device.

S204, the power supply equipment receives second control information sent by the power receiving equipment.

When the signal received by the power supply device is the second control information in the form of the protocol signal, the digital signal, the analog signal or the GPIO signal, the power supply device is specifically configured to detect a power supply requirement of the second control information generating system module.

S205, the power supply device outputs the second direct current Vsys.

In step S205, the power supply device controls the power supply module to adjust the electrical parameter of the second direct current Vsys to a second value according to the power supply requirement of the system module indicated by the second control information.

The technical problems to be solved and the technical effects to be achieved in the power supply control method may refer to the description in the above power supply system, and will not be repeated here.

The foregoing description of the power supply control method according to the embodiment of the present application is mainly described in terms of method steps in connection with fig. 17 and fig. 18. It will be appreciated that, in order to achieve the above-described functions, the power supply control means comprise corresponding hardware structures and/or software modules that perform the respective functions. Those skilled in the art will readily appreciate that the present application can be implemented in hardware or a combination of hardware and computer software in conjunction with the steps of a switch chip of each of the examples described in connection with the embodiments disclosed herein. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application can divide the functional modules of the power supply control device according to the power supply control method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

Fig. 19 shows a possible structural schematic diagram of the power supply control device 40 related to the above-described embodiment, which is applied to the power supply apparatus itself or a chip in the power supply apparatus, in the case where respective functional blocks are divided with corresponding respective functions, including: a receiving unit 401, a control unit 402.

A receiving unit 401, configured to receive first control information sent by a power receiving device, where the first control information is generated by a power supply requirement of a power receiving module of the power receiving device; the control unit 402 is configured to output a first direct current to a power receiving module of the power receiving device according to a power supply requirement of the power receiving module indicated by the first control information, where an electrical parameter of the first direct current is adjusted to a first value by the power supply module according to the power supply requirement of the power receiving module.

Optionally, the control unit 402 is further configured to control the power module to output a second direct current to a system module of the power receiving module, where the system module is configured to obtain a power supply requirement of the power receiving module.

Optionally, the receiving unit 401 is further configured to receive second control information sent by the power receiving device, where the second control information is generated by a power supply requirement of the system module acquired by the power receiving device; the control unit 402 is further configured to control the power module to adjust an electrical parameter of the second direct current to a second value according to a power supply requirement of the system module indicated by the second control information.

Optionally, the control unit 402 is further configured to detect the first control information to generate a power supply requirement of the power receiving module.

Optionally, the control unit 402 is further configured to detect the second control information to generate a power supply requirement of the system module.

Optionally, the receiving unit 401 is specifically configured to receive feedback information sent by the power receiving device, where the feedback information is generated by detecting a detection value of an electrical parameter of the first direct current after the power receiving device receives the first direct current; the control unit 402 is further configured to adjust an electrical parameter of the first direct current to the first value according to the detection value.

Optionally, the control unit 402 is further configured to detect the feedback information to obtain the detection value.

In hardware implementation, the power supply control device 40 includes a processor and an interface, where the processor is connected with the interface; the processor is configured to execute the program instructions in the memory to perform the steps performed by the power supply device in the power supply control method described above. Specifically, the receiving unit 401 may be an interface, the control unit 402 may be a processor, and in addition, it should be noted that, in combination with the power supply system, the power supply control device 40 may be a chip integrated in the power supply module or the detection circuit.

Fig. 20 shows a possible structural schematic diagram of the power supply control device related to the above-described embodiment, in the case where respective functional blocks are divided with corresponding respective functions, the power supply control device 50 being applied to the power supply apparatus itself or a chip in the power supply apparatus, including: control unit 501, transmitting unit 502, receiving unit 503.

A control unit 501, configured to obtain a power supply requirement of the power receiving module; a sending unit 502, configured to send first control information to the power supply device, where the first control information is generated by a power supply requirement of the power receiving module; and a receiving unit 503, configured to receive a first direct current output by the power supply device, and supply power to the power receiving module through the first direct current, where an electrical parameter of the first direct current is associated with a power supply requirement of the power receiving module indicated by the first control information.

Optionally, the power receiving apparatus further includes a system module, and the control unit 501 is further configured to power up the system module before obtaining a power supply requirement of the power receiving module, where the system module is configured to obtain the power supply requirement of the power receiving module.

Optionally, the powered device further includes a battery; the control unit 501 is further configured to output a second direct current to the system module through the battery, and power up the system module.

Optionally, the power receiving apparatus includes a conversion circuit, and the control unit 501 is further configured to convert the first direct current into the second direct current through the conversion circuit and output the second direct current to the system module, and power up the system module.

Optionally, the receiving unit 503 is further configured to receive a second direct current output by the power supply apparatus; and powering up the system module through the second direct current.

Optionally, the control unit 501 is configured to obtain a power supply requirement of the system module; a sending unit 502, configured to send second control information to the power supply device, where the second control information is generated by a power supply requirement of the system module; the receiving unit 503 is further configured to receive a second direct current output by the power supply device, where an electrical parameter of the second direct current is associated with a power supply requirement of the system module indicated by the second control signal.

Optionally, the control unit 501 is further configured to generate the first control information according to a power supply requirement of the power receiving module.

Optionally, the control unit 501 is further configured to detect an electrical parameter of the first direct current, and generate a detection value; the sending unit 502 is specifically configured to send feedback information to the power supply device, where the feedback information carries the detection value.

Optionally, the control unit 501 is further configured to generate the feedback information according to the detection value.

In hardware implementation, the power supply control device 50 includes a processor and an interface, where the processor is connected with the interface; the processor is configured to execute the program instructions in the memory to perform the steps performed by the powered device in the power supply control method described above. Specifically, the transmitting unit 502 and the receiving unit 503 may be interfaces, the control unit 501 may be a processor, and in addition, it should be noted that, in combination with the power supply system, the power supply control device 50 may be a chip integrated with the power receiving module or the feedback circuit.

In another embodiment of the present application, there is also provided a readable storage medium having stored thereon computer-executable instructions for performing the steps of the method provided in fig. 17 or 18 when a device (which may be a single-chip microcomputer, a chip or the like) or a processor is used. The aforementioned readable storage medium may include: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

In another embodiment of the present application, a chip is provided, including a substrate, and a detection circuit or a feedback circuit disposed on the substrate.

Finally, it should be noted that: the foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A power supply apparatus for connecting a power receiving apparatus through a cable, characterized by comprising: the power supply module, and the first control interface and the first power supply interface which are connected with the power supply module; the power receiving apparatus includes: the system module is connected with the second control interface and the power receiving module, and the power receiving module is connected with the second power supply interface;

When the power supply equipment is connected with the power receiving equipment through the cable, the first control interface is connected with the second control interface through a line in the cable, and the first power supply interface is connected with the second power supply interface through a line in the cable;

the first control interface is configured to acquire first control information sent by the power receiving device through the second control interface, wherein the first control information is generated by the power supply requirement of the power receiving module acquired by the system module;

The power supply module is configured to output a first direct current to the first power supply interface according to the power supply requirement of the power receiving module indicated by the first control information, and the electrical parameter of the first direct current is adjusted to a first value by the power supply module according to the power supply requirement of the power receiving module.

2. The power supply apparatus according to claim 1, wherein,

The power supply apparatus further includes: the third power supply interface is connected with the power supply module;

The power receiving equipment further comprises a fourth power supply interface connected with the system module;

When the power supply equipment is connected with the power receiving equipment through the cable, the third power supply interface is connected with the fourth power supply interface through a line in the cable;

The power module is configured to output a second direct current to the third power supply interface.

3. The power supply apparatus according to claim 2, wherein,

The first control interface is further configured to acquire second control information sent by the powered device through the second control interface, wherein the second control information is generated by the power supply requirement of the system module acquired by the system module;

the power supply module is configured to adjust the electrical parameter of the second direct current to a second value according to the power supply requirement of the system module indicated by the second control information.

4. A power supply apparatus according to any one of claims 1 to 3, characterized in that,

The power supply equipment further comprises a detection circuit, wherein the detection circuit is connected between the power supply module and the first control interface;

the powered device further comprises a feedback circuit connected between the system module and the second control interface;

the first control interface is specifically configured to receive the first control information sent by the feedback circuit through the second control interface, where the first control information is generated by the feedback circuit according to the power supply requirement of the power receiving module acquired by the system module;

The detection circuit is configured to detect the first control information to generate a power supply requirement of the power receiving module.

5. The power supply apparatus according to claim 3, wherein,

the first control interface is further configured to receive second control information sent by the feedback circuit through the second control interface, wherein the second control information is generated by the feedback circuit according to the power supply requirement of the system module acquired by the system module;

the detection circuit is configured to detect the second control information to generate a power supply requirement of the system module.

6. A power supply apparatus according to any one of claims 1 to 3, characterized in that,

The power supply device is further configured to receive feedback information sent by the power receiving device after outputting the first direct current to the power receiving device through the first power supply interface, where the feedback information carries a detection value of an electrical parameter of the first direct current;

The power supply module is configured to adjust the electrical parameter of the first direct current to the first value according to the detection value.

7. The power supply apparatus according to claim 6, wherein,

the power receiving device further comprises a feedback circuit, and the feedback circuit is connected between the power receiving module and the second control interface;

the first control interface is configured to receive feedback information sent by the feedback circuit through the second control interface;

the detection circuit is configured to detect the feedback information to acquire the detection value.

8. The power supply apparatus according to claim 6, wherein,

The power supply equipment further comprises a first feedback interface connected with the power supply module;

the power receiving equipment further comprises a second feedback interface connected with the power receiving module;

When the power supply equipment is connected with the power receiving equipment through the cable, the first feedback interface is connected with the second feedback interface through a line in the cable;

The first feedback interface is configured to receive the feedback information sent by the power receiving module through the second feedback interface.

9. The power supply device of any one of claims 4, 5 or 7, wherein the detection circuit comprises one or more of a protocol integrated circuit IC, a digital circuit, an analog circuit, a general purpose input output GPIO circuit.

10. A power receiving apparatus for connecting a power supply apparatus through a cable, characterized by comprising: the system module is connected with the second control interface and the power receiving module, and the power receiving module is connected with the second power supply interface; the power supply apparatus includes: the power supply module, and the first control interface and the first power supply interface which are connected with the power supply module;

When the power receiving equipment is connected with the power supply equipment through the cable, the second control interface is connected with the first control interface through a line in the cable, and the second power supply interface is connected with the first power supply interface through a line in the cable;

The system module is configured to acquire the power supply requirement of the power receiving module;

the second control interface is configured to send first control information to the first control interface, wherein the first control information is generated by the power supply requirement of the power receiving module acquired by the system module;

The power receiving module is configured to receive a first direct current output by the first power supply interface through the second power supply interface, wherein an electrical parameter of the first direct current is associated with a power supply requirement of the power receiving module indicated by the first control information.

11. The powered device of claim 10, wherein the power receiving device comprises a power source,

The system module is configured to be powered on before the power supply requirement of the power receiving module is acquired.

12. The power receiving apparatus according to claim 11, wherein the power receiving apparatus includes a battery, the battery being connected to the system module;

the battery is configured to output a second direct current to the system module and power up the system module.

13. The powered device of claim 11, comprising a conversion circuit connected between the second power supply interface and the system module;

The conversion circuit is configured to convert the first direct current into a second direct current and output the second direct current to the system module, and the system module is electrified.

14. The powered device of claim 11, wherein the power source is configured to receive the power from the power source,

The power receiving apparatus further includes: a fourth power supply interface connected with the system module;

when the powered device is connected with the power supply device through the cable, the fourth power supply interface is connected with the third power supply interface through a line in the cable;

the system module is configured to receive the second direct current output by the power supply equipment through the third power supply interface through the fourth power supply interface, and electrify the system module.

15. The powered device of claim 14, wherein the power receiving device comprises a power source,

The system module is configured to acquire the power supply requirement of the system module;

the second control interface is further configured to send second control information to the second control interface, where the second control information is generated by the power supply requirement of the system module acquired by the system module;

The system module is configured to receive a second direct current output by the power supply equipment through the third power supply interface through the fourth power supply interface, electrify the system module, and the electrical parameter of the second direct current is associated with the power supply requirement of the system module indicated by the second control information.

16. The powered device of any of claims 10-15,

The power receiving device further comprises a feedback circuit, wherein the feedback circuit is connected between the system module and the second control interface;

the power supply equipment further comprises a detection circuit; the detection circuit is connected between the power supply module and the first control interface;

the feedback circuit is configured to generate the first control information according to the power supply requirement of the power receiving module acquired by the system module;

The feedback circuit is further configured to send the first control information to the second control interface.

17. The powered device of claim 15, wherein the power receiving device,

The feedback circuit is configured to generate the second control information according to the power supply requirement of the system module acquired by the system module;

The feedback circuit is further configured to send the second control information to the second control interface.

18. The powered device of any of claims 10-15,

The power receiving module is further configured to detect the electrical parameter of the first direct current received by the second power supply interface, and generate a detection value;

the power receiving apparatus is further configured to send feedback information to the power supply apparatus, the feedback information carrying the detection value.

19. The powered device of claim 18, wherein the power receiving device,

the power receiving module is configured to send a detection value of an electrical parameter of the first direct current to the feedback circuit;

The feedback circuit is configured to generate feedback information according to the detection value and send the feedback information to the second control interface.

20. The powered device of any of claims 16-18,

The power receiving equipment further comprises a second feedback interface connected with the power receiving module; the power supply equipment further comprises a first feedback interface connected with the power supply module;

When the power receiving equipment is connected with the power supply equipment through the cable, the second feedback interface is connected with the first feedback interface through a line in the cable;

the power receiving module is configured to detect the electrical parameter of the first direct current received by the second power supply interface and generate the detection value;

the power receiving module is specifically configured to send feedback information to the second feedback interface, where the feedback information carries the detection value.

21. The power receiving apparatus according to claim 19 or 20, wherein the feedback circuit includes one or more of a protocol IC, a digital circuit, an analog circuit, a GPIO circuit.

22. A power supply control method, characterized by being applied to a power supply device, the power supply device including a power supply module, the method comprising:

receiving first control information sent by a power receiving device, wherein the first control information is generated by the power supply requirement of a power receiving module of the power receiving device;

And outputting a first direct current to the power receiving module of the power receiving equipment according to the power supply requirement of the power receiving module indicated by the first control information, wherein the electrical parameter of the first direct current is adjusted to a first value by the power supply module according to the power supply requirement of the power receiving module.

23. The power supply control method according to claim 22, characterized by further comprising:

and controlling the power supply module to output a second direct current to a system module of the power receiving module, wherein the system module is used for acquiring the power supply requirement of the power receiving module.

24. The power supply control method according to claim 23, characterized by further comprising:

receiving second control information sent by the power receiving equipment, wherein the second control information is generated by the power supply requirement of the system module acquired by the power receiving equipment;

And controlling the power supply module to adjust the electrical parameter of the second direct current to a second value according to the power supply requirement of the system module indicated by the second control information.

25. The power supply control method according to any one of claims 22 to 24, characterized by further comprising, after receiving the first control information sent by the power receiving apparatus:

And detecting the first control information to generate the power supply requirement of the power receiving module.

26. The power supply control method according to claim 24, wherein after receiving the second control information transmitted by the power receiving apparatus, further comprising:

and detecting the second control information to generate the power supply requirement of the system module.

27. The power supply control method according to any one of claims 22 to 24, characterized in that after outputting the first direct current to the power receiving apparatus through the first power supply interface, the method further comprises:

receiving feedback information sent by the power receiving equipment, wherein the feedback information carries a detection value of an electrical parameter of the first direct current;

and adjusting the electrical parameter of the first direct current to the first value according to the detection value.

28. The power supply control method according to claim 27, wherein after receiving the feedback information sent by the power receiving apparatus, further comprising:

and detecting the feedback information to obtain the detection value.

29. The power supply control method is characterized by being used for power receiving equipment, wherein the power receiving equipment comprises a power receiving module; the method comprises the following steps:

Acquiring the power supply requirement of the power receiving module;

Transmitting first control information to the power supply equipment, wherein the first control information is generated by the power supply requirement of the power receiving module;

And receiving a first direct current output by the power supply equipment, and supplying power to the power receiving module through the first direct current, wherein an electrical parameter of the first direct current is associated with the power supply requirement of the power receiving module indicated by the first control information.

30. The power supply control method according to claim 29, wherein the power receiving apparatus further comprises a system module, the method further comprising:

Before the power supply requirement of the power receiving module is acquired, the system module is electrified, and the system module is used for acquiring the power supply requirement of the power receiving module.

31. The power supply control method according to claim 30, characterized in that the method further comprises:

receiving a second direct current output by the power supply equipment;

And powering up the system module through the second direct current.

32. The power supply control method according to claim 31, characterized in that the method further comprises:

Acquiring the power supply requirement of the system module;

Transmitting second control information to the power supply equipment, wherein the second control information is generated by the power supply requirement of the system module;

Transmitting the second control information to the power supply device;

And receiving a second direct current output by the power supply equipment, wherein an electrical parameter of the second direct current is associated with the power supply requirement of the system module indicated by the second control signal.

33. The power supply control method according to any one of claims 29 to 32, characterized in that the first control information is transmitted before the power supply apparatus; further comprises:

and generating the first control information according to the power supply requirement of the power receiving module.

34. The power supply control method according to claim 32, wherein the second control information is transmitted before the power supply apparatus; further comprises:

and generating the second control information according to the power supply requirement of the system module.

35. The power supply control method according to any one of claims 29 to 32, characterized in that,

Detecting the electrical parameter of the first direct current to generate a detection value;

and sending feedback information to the power supply equipment, wherein the feedback information carries the detection value.

36. The power supply control method according to claim 35, characterized by further comprising, before the transmission of feedback information to the power supply apparatus:

And generating the feedback information according to the detection value.

37. The power supply control device is characterized by comprising a processor and an interface, wherein the processor is connected with the interface;

The processor is configured to execute program instructions in a memory to perform the power supply control method of any one of claims 22-36.

38. A power supply system comprising a power supply apparatus according to any one of claims 1-9 and a power receiving apparatus according to any one of claims 10-21.

39. The power supply system of claim 38, wherein the power supply device comprises a power box and the powered device comprises an ultra-thin display device.