CN112202222B - Charger, charging control method and device - Google Patents

Abstract

The application discloses a charger, a charging control method and a device, and belongs to the technical field of communication. The charger includes a power socket, a voltage converter, a first power converter, a second power converter, a first charging protocol chip, a second charging protocol chip, a first charging interface and a second charging interface; the voltage converters are respectively connected The power socket, the first power converter and the second power converter, the voltage converter is used to convert alternating current into direct current, and both the first power converter and the second power converter are used to convert direct current power conversion; the first charging protocol chip is respectively The first power converter is connected to the first charging interface; the second charging protocol chip is respectively connected to the second power converter and the second charging interface; the first charging protocol chip is communicatively connected to the second charging protocol chip. The application can realize the intelligent distribution of the power of the multi-port charger, improve the effective utilization rate of the power of the multi-port charger, and improve the user's fast charging experience.

Description

Charger, charging control method and device

technical field

The present application relates to the technical field of communication, and in particular to a charger, a charging control method and a device.

Background technique

With the continuous development of technology, the functions of smart electronic devices are becoming more and more powerful, and the standby time of smart electronic devices is more and more valued by users. However, because the battery capacity is limited by battery technology, fast charging solutions have emerged as the times require.

In order to facilitate users to charge different electronic devices, users often use multi-port chargers. The current multi-port chargers generally include 1A1C (1 USB_A, 1 USB_C), 2A1C (2 USB_A, 1 USB_C), 1A2C (1 USB_A, 2 USB_C) and other types.

In the existing multi-port chargers, there is usually at least one charging interface that supports fast charging. In the process of implementing this application, the inventor found that the power allocated to each charging interface by the charger is fixed. When using multiple charging interfaces to charge , some charging ports actually require less power than their assigned fixed power, while some charging ports, generally fast charging ports, actually require more power than their assigned fixed power, resulting in a multi-port charger power loss It has not been effectively utilized, and the effective utilization rate of the power of the multi-port charger is low.

Contents of the invention

The purpose of the embodiments of the present application is to provide a charger, a charging control method and a device, which can solve the problem of low effective utilization of power of existing chargers.

In order to solve the above-mentioned technical problems, the application is implemented as follows:

In the first aspect, the embodiment of the present application provides a charger, including: a power socket, a voltage converter, a first power converter, a second power converter, a first charging protocol chip, a second charging protocol chip, a first a charging interface and a second charging interface;

Wherein, the voltage converter is respectively connected to the power socket, the first power converter and the second power converter, the voltage converter is used to convert alternating current into direct current, and the first power converter and the The second power converters are all used for DC power conversion;

The first charging protocol chip is respectively connected to the first power converter and the first charging interface;

The second charging protocol chip is respectively connected to the second power converter and the second charging interface;

The first charging protocol chip is communicatively connected to the second charging protocol chip.

In the second aspect, the embodiment of the present application provides a charging control method applied to a charger, including:

When the first charging interface and the second charging interface are respectively connected to the first device and the second device, and fast charging is performed, the first load power of the first device is acquired;

When the first load power satisfies a preset condition, sending instruction information to the second charging interface, where the instruction information is used to instruct to adjust the output power of the second charging interface to a target value.

In a third aspect, the embodiment of the present application further provides a charging control device, including:

An acquisition module, configured to acquire the first load power of the first device when the first charging interface and the second charging interface are respectively connected to the first device and the second device and perform fast charging;

A sending module, configured to send instruction information to the second charging interface when the first load power meets a preset condition, and the instruction information is used to instruct to adjust the output power of the second charging interface to the target value.

In a fourth aspect, an embodiment of the present application provides a charger, including: the charging control device as described in the third aspect.

In the fifth aspect, the embodiment of the present application provides a charger, including: a processor, a memory, and a program or instruction stored in the memory and operable on the processor, the program or instruction being executed by the When executed by the processor, the steps of the charging control method according to the second aspect are realized.

In the sixth aspect, the embodiment of the present application also provides a readable storage medium, the readable storage medium stores programs or instructions, and when the programs or instructions are executed by the processor, the charging described in the second aspect is realized. The steps of the control method.

In the seventh aspect, the embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions, so as to implement the second aspect The steps of the charging control method.

In the embodiment of the present application, the fixed voltage is output by the voltage converter, and the first power converter and the second power converter are respectively connected in series in the voltage converter, and the first power converter and the second power converter are respectively composed of different Charging protocol chip control, so as to realize multi-port fast charging function; and, direct communication connection between different charging protocol chips, and then realize real-time mutual transmission of power information between two ports, and then realize power between different output ports of multi-port charger Intelligent allocation improves the effective utilization of the multi-port charger power and improves the user's fast charging experience.

Description of drawings

Fig. 1 is the hardware circuit structure schematic diagram of existing charger;

FIG. 2 is a schematic structural diagram of a hardware circuit of a charger according to an embodiment of the present application;

FIG. 3 is a schematic flowchart of a charging control method provided in an embodiment of the present application;

FIG. 4 is a preset communication sequence diagram of an embodiment of the present application;

FIG. 5 is one of the communication scenarios in which the first protocol chip and the second protocol chip realize single-wire communication through cascading input and output pins according to an embodiment of the present application;

FIG. 6 is the second communication scenario in which the first protocol chip and the second protocol chip implement single-line communication through cascading input and output pins according to the embodiment of the present application;

FIG. 7 is the third communication scenario in which the first protocol chip and the second protocol chip implement single-line communication through cascading input and output pins according to the embodiment of the present application;

FIG. 8 is the fourth communication scenario in which the first protocol chip and the second protocol chip implement single-line communication through cascading input and output pins according to the embodiment of the present application;

FIG. 9 is a schematic structural diagram of a charging control device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The charger provided by the embodiment of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

In order to facilitate the understanding of those skilled in the art, the circuit structure of the charger in the prior art is briefly described first.

Referring to FIG. 1 , in an example, the charger is a 1A1C multi-port charger, that is, a charger including a Type-A USB port (hereinafter referred to as A port) and a Type-C USB port (hereinafter referred to as C port). Among them, the A port can only support 5V2A charging, or it can support both 5V2A charging and fast charging; the C port supports fast charging. A multi-port charger with both ports supporting fast charging usually stacks two sets of circuits, as shown in Figure 2. The charger includes: a power socket (AC socket in the figure), two voltage converters (numbers 101 and 102 in the figure), two charging protocol chips (protocol IC1 and protocol IC2 in the figure), two charging interfaces ( Type-A USB interface and Type-C USB interface). Wherein, the two voltage converters are both used to convert the alternating current into direct current; and both are connected to the power socket.

Wherein, the Type-A USB interface includes a plurality of terminals or pins, specifically: a plurality of first data transmission terminals for data transmission, and a voltage output terminal for charging. Specifically, the data transmission end of the Type-A USB interface includes data pins D+ and D− in the Type-A USB interface. The voltage output terminal of the Type-A USB interface is the voltage pin VBUS pin in the Type-A USB interface.

Specifically, the data pins D+ and D− of the Type-A USB interface are respectively connected to the protocol IC1; the voltage pin VBUS of the Type-A USB interface is connected to the secondary side of the voltage converter 101 . It should be noted that a first sampling output module is provided between the voltage output terminal of the Type-A USB interface and the voltage converter 101, and the first sampling output module is connected to the protocol IC1 for collecting the voltage and the voltage of the voltage output terminal. current.

The Type-C USB interface includes a plurality of terminals or pins, specifically: a plurality of data transmission terminals for data transmission, and a voltage output terminal for charging. Specifically, the data terminal of the Type-C USB interface includes data pins D+, D- and CC in the Type-C USB. The voltage output terminal of the Type-C USB interface is the voltage pin VBUS pin in the Type-C USB interface.

Specifically, the data pin D+ pin, D- pin and CC pin in the Type-C USB interface are respectively connected to the protocol IC2; side. It should be noted that a second sampling output module is provided between the voltage output terminal of the Type-C USB interface and the voltage converter 102, and the second sampling output module is connected to the protocol IC2 for collecting the voltage and the voltage of the voltage output terminal. current.

The disadvantages of the above-mentioned chargers are: firstly, there are too many devices on the charger, the volume is large, and the cost is high; secondly, the two ports cannot dynamically distribute power, so that the maximum power of the charger cannot be effectively used.

Based on this, an embodiment of the present application provides a charger. As shown in FIG. 2 , the charger includes: a power socket 1, a voltage converter 2, a first power converter 3, a second power converter 4, a first A charging protocol chip 5 , a second charging protocol chip 6 , a first charging interface 7 and a second charging interface 8 .

Wherein, the voltage converter 2 is respectively connected to the power socket 1, the first power converter 3 and the second power converter 4, the voltage converter 2 is used to convert alternating current into direct current, and the first power converter 3 and the second power converter 4 are used for DC power conversion; the first charging protocol chip 5 is respectively connected to the first power converter 3 and the first charging interface 7; the second charging protocol chip 6 is respectively connected to the second power converter 4 and the second charging interface 8; The communication between the first charging protocol chip 5 and the second charging protocol chip 6 is connected.

In the example shown in FIG. 2 , the charger is a 1A1C multi-port charger, that is, a charger including a Type-A USB port (hereinafter referred to as A port) and a Type-C USB port (hereinafter referred to as C port). Among them, the A port can only support 5V2A charging, or it can support both 5V2A charging and fast charging; the C port supports fast charging.

Specifically, the first charging interface corresponds to the Type-A USB interface in this example; the second charging interface corresponds to the Type-C USB interface in this example.

Here, the first power converter 3 is a buck conversion circuit (BUCK1 in the figure), and the second power converter 4 is a buck conversion circuit (BUCK2 in the figure).

It should be noted that the first charging interface 7 includes multiple terminals or pins, specifically: a first voltage output terminal for charging, and multiple first data transmission terminals for data transmission. Specifically, the first data transmission end of the first charging interface 7 includes data pins D+ and D- in the Type-A USB interface. The first voltage output terminal of the first charging interface 7 is the voltage pin VBUS pin in the Type-A USB interface.

Specifically, the first data transmission end of the first charging interface 7 is connected to the first charging protocol chip 5, that is, the data pin D+ pin and D- pin in the Type-AUSB interface are respectively connected to the protocol IC1; the first charging interface 7 The first voltage output terminal is connected to the first power converter 3 , that is, the voltage pin VBUS pin in the Type-A USB interface is connected to the first power converter 3 .

As an optional implementation, the charger in the embodiment of the present application may further include: a first sampling output module arranged between the first voltage output terminal of the first charging interface 7 and the first power converter 3, the The first sampling output module is connected to the first charging protocol chip 5 , and the first sampling output module is used to collect the voltage and current of the first voltage output terminal; the first power converter 3 is connected to the first charging protocol chip 5 .

The second charging interface 8 includes multiple terminals or pins, specifically: a second voltage output terminal for charging, and multiple second data transmission terminals for data transmission. Specifically, the second data terminal of the second charging interface 8 includes data pins D+, D- and CC in the Type-CUSB interface. The second voltage output terminal of the second charging interface 8 is the voltage pin VBUS pin in the Type-C USB interface.

Specifically, the second data transmission end of the second charging interface 8 is connected to the second charging protocol chip 6, that is, the data pins D+ pin, D- pin, CC1 pin and CC2 pin in the Type-CUSB interface are respectively connected to Protocol IC2; the second voltage output end of the second charging interface 8 is connected to the second power converter 4 , that is, the voltage pin VBUS pin of the Type-C USB interface is connected to the second power converter 4 .

As an optional implementation, the charger in the embodiment of the present application may further include: a second sampling output module arranged between the second voltage output end of the second charging interface 8 and the second power converter 4, the The second sampling output module is connected to the second charging protocol chip 6 , and the second sampling output module is used to collect the voltage and current of the second voltage output terminal; the second power converter 4 is connected to the second charging protocol chip 6 .

It should be noted that, in the embodiment of the present application, the voltage converter 2 is an AC-DC converter, and the voltage converter 2 outputs a fixed voltage, such as a fixed output of 21V. Two protocol ICs, that is, the first charging protocol chip 5 and the second charging protocol chip 6 communicate through a direct connection of a general-purpose I/O port (General-Ourpose Input/Output, GPIO). Specifically, the first charging protocol The input and output pins of the chip 5 are cascaded with the input and output pins of the second charging protocol chip 6 to realize real-time mutual transmission of power information between the two ports. The implementation method is simple and the transmission content is rich.

Optionally, the charger in the embodiment of the present application further includes: a first temperature sampling module and a second temperature sampling module, wherein both the first temperature sampling module and the second temperature sampling module are compatible with The first charging protocol chip 5 is connected.

The charger in the embodiment of the present application outputs a fixed voltage through the voltage converter, and the first power converter and the second power converter are respectively connected in series in the voltage converter, and the first power converter and the second power converter are respectively composed of different The charging protocol chip control, so as to realize the multi-port fast charging function; and, the direct communication connection between different charging protocol chips, and then realize the real-time mutual transmission of power information between the two ports, and then realize the multi-port charger between different output ports Intelligent distribution of power improves the effective utilization of multi-port charger power and enhances the user's fast charging experience.

As shown in Figure 3, the embodiment of the present application also provides a charging control method, which is applied to a charger, specifically the charger described in the above embodiment, and the method may specifically include:

Step 301, when the first charging interface and the second charging interface are respectively connected to the first device and the second device, and perform fast charging, obtain the first loading power of the first device;

It should be noted that since the communication connection between the first charging protocol chip 5 and the second charging protocol chip 6 can be realized, and the first charging protocol chip 5 is connected to the first charging interface 7, the second charging protocol chip 6 It is connected to the second charging interface 8, so the second charging interface 8 can obtain the first load power of the first device connected to the first charging interface 7.

Here, the loading power can be understood as the power that the electronic device needs to output from the charger when the electronic device is charged by the charger.

For example, if the first electronic device connected to the first charging interface is not a fast charging device, it only needs to load the charger with a power of 5V2A, that is, 10W, from the first charging interface.

Step 302, when the first load power satisfies the preset condition, send instruction information to the second charging interface, the instruction information is used to instruct to adjust the output power of the second charging interface to the target value.

It can be understood that through the execution of this step, the maximum output power allowed by the second charging interface is no longer a fixed power, but can be intelligently adjusted according to the load power of other charging interfaces.

It should be noted that the execution subject of the method in the embodiment of the present application is the second charging protocol chip.

In the charging control method of the embodiment of the present application, when the first charging interface and the second charging interface are respectively connected to the first device and the second device, and fast charging is performed, the first load power of the first device is obtained; When the first load power satisfies the preset condition, send instruction information to the second charging interface, the instruction information is used to instruct to adjust the output power of the second charging interface to the target value, so that multiple The intelligent distribution of the power of the multi-port charger improves the effective utilization of the power of the multi-port charger and improves the user's fast charging experience.

As an optional implementation manner, the method step 101 of the embodiment of the present application may specifically include:

When the first load power is continuously lower than the first threshold within a preset time, send first instruction information to the second charging interface, the first instruction information is used to instruct to increase the first 2. The output power of the charging interface reaches the first target value;

Here, the first loading power is continuously lower than the first threshold within the preset time, indicating that the power of the first device has exceeded the preset threshold. It can be understood that the charging of the first device has reached the end of charging, and the charging of the first device is about to There is no need for the charger to allocate too much power to itself. At this time, in order to improve the effective utilization rate of the charger power and to speed up the charging process of the second device, send an instruction to increase the output power of the second charging interface. The first instruction information to the first target value.

Optionally, the first target value is determined by the total power of the charger and the first load power, and specifically may be a difference between the total power of the charger and the first load power.

Or, in the case that the drop of the first load power per unit time exceeds a second threshold, send second instruction information to the second charging interface, the second instruction information is used to instruct to increase the the output power of the second charging interface reaches a second target value;

It should be noted that when the device is charging, the device will heat up. When the temperature of the device reaches the preset temperature, the loading power will be automatically reduced. After that, the temperature will return to normal through cooling means, and the loading power will return to the original level. Or, when the device is making a call, etc., too high loading power will affect the quality of the call. Generally, the loading power will be reduced. After the call ends, the loading power will return to the original level.

Here, the decrease of the first load power in a unit time exceeds the second threshold, indicating that the temperature of the first device reaches the preset temperature, and the first load power is automatically reduced; or, the first device is in a call state, and the first load For power reduction, in order to improve the effective utilization rate of the power of the charger and to speed up the charging process of the second device, the second instruction information for instructing to increase the output power of the second charging interface to the second target value is sent.

Optionally, the second target value is determined by the total power of the charger and the first load power, and specifically may be a difference between the total power of the charger and the first load power.

Or, when the first load power is greater than the first output power, sending third instruction information to the second charging interface, the third instruction information is used to instruct to reduce the output of the second charging interface power to the third target value.

Here, the first load power is greater than the first output power, indicating that the current power of the first device is low. It can be understood that the first device needs to allocate more power to itself from the charger when it is charged to the initial stage of charging. At this time, in order to speed up the first device In the charging process of the device, third instruction information indicating to reduce the output power of the second charging interface to a third target value is sent.

Optionally, the third target value is determined by the total power of the charger and the first load power, and specifically may be a difference between the total power of the charger and the first load power.

Here, in order to enhance the fast charging effect and further improve the user's fast charging experience, as an optional implementation, the target value (here The target value generally refers to any one of the above-mentioned first target value, second target value and third target value), and may include:

performing a difference calculation between the total power of the charger and the first loading power to obtain intermediate power;

If the quotient of the intermediate power and the basic power adjustment step size A is rounded down to obtain B, and B is greater than 1, then the target value is B*A.

Here, the basic power adjustment step size A is a preset value. In this step, the quotient of the intermediate power and the basic power adjustment step size A is rounded down to obtain B, and B is greater than 1, indicating that the charger has a surplus of output power through the first charging interface, that is, the first load power is removed , there is still a lot of surplus power that has not been utilized. Through the above-mentioned power adjustment, the surplus power is distributed to the second charging interface side, which can improve the effective utilization of the power of the multi-port charger, and the second charging interface connected to the second The charging time of the second device is greatly shortened, the fast charging effect is enhanced, and the purpose of further improving the user's fast charging experience is achieved.

Furthermore, if the quotient of the intermediate power and the basic power adjustment step size A is rounded down to obtain B, and B is less than 1, then the maximum power output by the second charging interface is allowed to maintain the original power, that is, for all The maximum output power allowed by the second charging interface is not processed.

As an optional implementation, the second charging interface is the master interface, and the first charging interface is the slave interface; step 301 of the embodiment of the present application acquires the first load power of the first device, which may include :

Mode 1, the second charging interface acquires the first loading power of the first device every first time period;

Here, since the first charging protocol chip 5 connected to the first charging interface 7 and the second charging protocol chip 6 connected to the second charging interface 8 are connected in communication, specifically, the first input and output transistors of the first charging interface 7 pin and the second input and output pins of the second charging interface 8 are cascaded, and here, the first input and output pins and the second input and output pins are both GPIO ports, for example, the first input and output pins and the second input The output pin is the RT pin. Different charging protocol chips communicate through the cascading of GPIO ports, that is, use single-wire communication to transmit real-time power.

Specifically, the step of obtaining the first load power of the first device may include:

1) When the level state of the second input and output pin is the first target state, collect the first level information of the second input and output pin, and the first level information includes: level state , the corresponding moment when the level state changes and the duration of keeping a level state unchanged;

Here, the level state of the second input and output pin includes two states of high level and low level. Here, it is high by default.

It should be noted that the first target state is a low level. Here, the first target state is triggered by the second charging protocol chip. Specifically, when the second charging protocol chip needs to transmit the power information of the second charging interface, its second input and output pins are pulled to the first target state, such as pulled from a default high level to a low level. Since the first input-output pin is cascaded with the second input-output pin, the level state of the first input-output pin becomes the first target state.

2) Analyzing the first level information according to the preset communication sequence and transmission rules to obtain the first communication instruction and the first communication data, the first communication instruction is used to represent the first level information in the first level information , corresponding to the level state in the command transmission period;

Here, the preset communication timing is shown in Figure 4, wherein the communication timing refers to the level changes that occur on the communication line in chronological order, and the significance of these changes to communication is called timing.

It should be noted that, as shown in FIG. 4 , in the preset communication sequence, communication information, such as communication instructions and communication data, is transmitted at a low level. Specifically, what kind of information is used for each low-level period in time order and the duration of each level period (that is, the time specification) has been preset. The specific time specification is shown in Table 1 below:

Table 1

Referring to the time specification in the above table, specifically explain the communication sequence in Figure 4. First, from the moment when the input and output pins of the first charging protocol chip are pulled to low level, the low level lasts for 9ms, corresponding to the Start in the communication sequence, and is used for communication testing; after that, it becomes high level for 3msT_cap ; Then, it becomes low level and lasts for 6ms, corresponding to the ACK in the communication sequence, which is for feeding back the input and output pins of the second charging protocol chip, indicating that the first charging protocol chip and the second charging protocol chip It can communicate normally; then, it becomes high level 9msT_wait; after that, it enters the formal information transmission.

That is, after becoming high level 9msT_wait, transmit the communication command through the level state and the duration of the corresponding level state, and then become high level 9msT_wait, after that, transmit the communication command through the level state and the duration of the corresponding level state The communication data corresponding to the communication command.

In one example, as shown in Figure 4, after changing to a high level for 9msT_wait, it becomes a low level for 3ms, a high level for 3msT_cap, and a low level for 3ms, indicating that the communication command is "00", indicating that the A port (here corresponds to Type-A USB interface in Figure 2) power transmission command, that is to say, the communication data transmitted later is the power of the A port sent by the A port. After that, after becoming high level 9ms T_wait, it becomes 3ms low level, high level 3ms T_cap, 3ms low level, high level 3ms T_cap, 6ms low level, high level 3ms T_cap and 6ms low level , indicating that the communication command is "0011". Refer to the following table 2 for details, and the power of the A port can be obtained as 10W.

In addition, the specific communication information description is shown in Table 2 below:

Table 2

3) In the case where the first communication instruction is the first sending instruction for obtaining power through the first charging interface, it is determined that the first communication data is data representing power, and the power value corresponding to the first communication data will be determined as the first load power of the first device.

In this step, the communication information is represented by a first preset number of bits, and the value "0" or "1" of the bit is reflected by the low level and the duration of keeping the low level unchanged. For example, 3ms low level is used to represent "0", and 6ms low level is used to represent "1".

In addition, the same is true for the communication data, which is represented by a second preset number of bits. The value "0" or "1" of a bit is reflected by the low level and the duration of keeping the low level unchanged.

As we all know, communication is a process of mutual interaction between two communication parties. The above embodiment corresponds to the second charging interface obtaining the real-time power of the first charging interface. According to the obtained real-time power, the second charging protocol chip adjusts the output of the second charging interface side. power process. Correspondingly, the second charging interface can also send the real-time power of this side and inform the first charging protocol chip. When power adjustment is required, the first charging protocol chip can also adjust the first charging protocol chip according to the power of the second charging interface side. Output power on the interface side.

Step 301 of the embodiment of the present application to acquire the first load power of the first device may include:

Manner 2: When the first loading power of the first charging device changes, the second charging interface receives the first loading power of the first device sent by the first charging interface.

It should be noted that, when the first loading power of the first charging device changes and has not reached the first duration, the first charging protocol chip will actively send information, that is, the first loading power, to the first charging device. The second charging protocol chip facilitates the second charging protocol chip to obtain the second loading power of the first device in time.

Specifically, the first charging interface actively sends the first load power of the first device to the second charging interface, which may include:

digitally processing the first loading power according to preset rules to obtain second communication data representing the first loading power;

Here, the second communication data representing the first loading power is represented by several bits.

generating a second sending instruction, and controlling the level state of the first input and output pins to be a second target state based on the second sending instruction;

Here, the second target state is a low level state. By default, the level state of the first input and output pin is high level. Here, the first I/O pin is triggered to be pulled to a low level by the second sending command.

Obtain the second level information carrying the second communication data and the second sending instruction according to the preset communication timing and transmission rules, and output to the second input and output through the first input and output pins pins.

In this step, the preset communication sequence and transmission rules have been described in the foregoing part, ie, FIG. 4 , Table 1 and Table 2, and will not be repeated here.

Here, specifically, according to the preset communication timing and transmission rules, after Start, ACK, and high level 9msT_wait, the second sending command is output to the second transmission command through the level state and the duration of the corresponding level state. The two input and output pins then change to a high level for 9 msT_wait, and then output the second communication data to the second input and output pins through the level state and the duration of the corresponding level state.

In order to prevent the second device from unrestrictedly loading the charger and ensure the normal operation of the charger, as an optional implementation, after the method step 302 in the embodiment of the present application, the method may further include:

Send the adjusted power to the second device through the second charging interface.

It should be noted that, in order to prevent the temperature of the charger itself from being too high during the process of charging different electronic devices, the method in the embodiment of the present application may further include: acquiring temperature information of the charger.

Here, referring to FIG. 2 , a first temperature sampling module and a second temperature sampling module can be arranged on the charger to collect the temperature of the charger itself.

Referring to Fig. 2 below, several communication scenarios corresponding to single-wire communication realized by cascading input and output pins of the first protocol chip and the second protocol chip will be described in detail.

As shown in FIG. 2 , the first charging protocol chip is connected to the first charging interface, that is, it is connected to the A port; the second charging protocol chip is connected to the second charging interface, that is, it is connected to the C port.

scene one

Port A regularly sends its own power information to port C, for example, port A sends information 3 to port C, as shown in Figure 5, the communication process is:

A(Start)->C(ACK)->A(Command＝00)->A(Data＝0x03)

scene two

Port A regularly obtains the power information of port C, and port A regularly obtains information 3 of port C. As shown in Figure 6, the communication process is as follows:

A(Start)->C(ACK)->A(Command＝01)->C(Data＝0x03)

scene three

The power information of port C changes, port C actively sends information to port A, and port C sends information 3 to port A, as shown in Figure 7, the communication process is as follows:

C(Start)->A(ACK)->C(Command＝01)->C(Data＝0x03)

scene four

Port A regularly sends temperature information to port C, and port A sends temperature information to port C, as shown in Figure 8, the communication process is:

A (Start)->C (ACK)->A (Command=10)->A (Data=0x03).

In the above scenario, the communication between port A and port C is based on the fact that port A is the master port and port C is the slave port. Of course, the C port can also be used as the main interface, and the A port can be used as the slave interface, which is not specifically limited here.

An example will be used below to describe in detail the specific implementation of the charging control method according to the embodiment of the present application, that is, the implementation steps of power distribution, with reference to FIG. 2 .

First, insert the mobile phone into the A port first, and then insert the mobile phone into the C port (the total power of the charger is 60W, both A and C ports support fast charging. When plugging in at the same time, the power provided by the A port is 30W by default, and the power provided by the C port is 30W)

S1, after the A port of the charger is inserted into the mobile phone, the A port establishes fast charging communication with the A port mobile phone, and the A port provides 60W charging power to the A port mobile phone;

S2, the charger detects that a mobile phone is inserted into the C port, the C port communicates with the C port mobile phone for fast charging, and recognizes that the C port is a fast charging mobile phone, and the charger resets the charging process of the A port to return the A port to the initial state;

At this time, the charger provides a maximum power of 30W for both A port and C port.

Here, referring to FIG. 2 , specifically, the first charging protocol chip of the charger controls the BUCK1 circuit not to output voltage to the Vbus pin of the A port, that is, resets the charging process of the A port to return the A port to the initial state.

S3, the mobile phones at the A port and the C port are respectively fast charged at 30W; at this time, the A port continuously sends information to the C port to inform its own power or continuously obtains the real-time power of the C port;

S4, ports A and C adjust their maximum output power in real time according to the loading situation of the other party.

Here, the dynamic allocation of power will be described.

1. After plugging in electronic devices at the same time, the default maximum external power provided by the A and C ports of the multi-port charger is 30W.

2. A and C constantly detect the loading status of the ports. For example, after more than 10 minutes, the A port detects that the electronic equipment is loaded within 50% of the maximum power. At this time, the A port informs the charging IC on the C port side, and the A port The output power is surplus. After the charging IC on the C port side obtains the power information of the A port, it adjusts the maximum external power provided by the C port, and informs the electronic device at the C port to charge with a higher power.

3. When the A port detects that the electronic device at the A port exits the fast charge, and only carries out normal 5v2A charging, the A port informs the C port that the output power of the A port is sufficient at this time, and the charging IC on the C port side obtains the power information of the A port, and then adjusts The C port provides the maximum external power, and informs the electronic device at the C port to charge with a higher power.

It should be noted that after the electronic device at one fast charging port is fully charged, the charger will provide a full power of 60W to the other charging port.

In addition, in an example, when ports A and C are performing fast charging at the same time, as shown in Figure 2, port A has the remaining ports CC1 and CC2 for temperature detection, and port C is blocked because CC1 and CC2 need to communicate with the fast charging protocol. Occupied, there is no extra port for temperature detection, A port continuously transmits its own temperature information to C port, C port is overheated according to the temperature protection.

In the charging control method of the embodiment of the present application, when the first charging interface and the second charging interface are respectively connected to the first device and the second device, and fast charging is performed, the first load power of the first device is obtained; When the first load power satisfies the preset condition, send instruction information to the second charging interface, the instruction information is used to instruct to adjust the output power of the second charging interface to the target value, so that multiple The intelligent distribution of the power of the multi-port charger improves the effective utilization of the power of the multi-port charger and improves the user's fast charging experience.

It should be noted that, the charging control method provided in the embodiment of the present application may be executed by a charging control device, or a control module in the charging control device for executing the loading charging control method. In the embodiment of the present application, the charging control method provided by the embodiment of the present application is described by taking the charging control device executing the loading charging control method as an example.

As shown in Figure 9, the embodiment of the present application also provides a charging control device 900, which is applied to a charger, and the charger includes at least two charging interfaces and at least two charging protocol chips, and each charging interface is connected to a corresponding The charging protocol chip is connected, and the at least two charging protocol chips are connected to each other by communication; the device includes:

An acquisition module 901, configured to acquire the first load power of the first device when the first charging interface and the second charging interface are respectively connected to the first device and the second device and perform fast charging;

The sending module 902 is configured to send instruction information to the second charging interface when the first loading power satisfies a preset condition, and the instruction information is used to indicate that the output power of the second charging interface Adjust to target value.

Optionally, the sending module 902 includes:

The first sending unit is configured to send first instruction information to the second charging interface when the first loading power is continuously lower than the first threshold within a preset time, and the first instruction information is used for Instructing to increase the output power of the second charging interface to the first target value; or,

The second sending unit is configured to send second instruction information to the second charging interface when the decrease amount of the first load power per unit time exceeds a second threshold, and the second instruction information is used for instructing to increase the output power of the second charging interface to a second target value; or,

A third sending unit, configured to send third instruction information to the second charging interface when the first load power is greater than the first output power, and the third instruction information is used to instruct to reduce the first output power. The output power of the second charging interface reaches the third target value.

Optionally, the second charging interface is a master interface, and the first charging interface is a slave interface; the obtaining module 901 is specifically used for:

The second charging interface acquires the first loading power of the first device every first time period; or,

When the first loading power of the first charging device changes, the second charging interface receives the first loading power of the first device sent by the first charging interface.

The charging control device in the embodiment of the present application may be a device, or a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. Exemplary, exemplary, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital Assistant (personal digital assistant, PDA), etc., non-mobile electronic devices can be network attached storage (NetworkAttached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this The application examples are not specifically limited.

The charging control device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in this embodiment of the present application.

The charging control device provided in the embodiment of the present application can realize various processes realized by the method embodiments in FIG. 1 to FIG. 8 , and details are not repeated here to avoid repetition.

In the charging control device according to the embodiment of the present application, the acquisition module acquires the first load of the first device when the first charging interface and the second charging interface are respectively connected to the first device and the second device and fast charging is performed. power; the sending module sends instruction information to the second charging interface when the first loading power satisfies the preset condition, and the instruction information is used to instruct to adjust the output power of the second charging interface to a target value, In this way, it is possible to realize the intelligent distribution of the power of the multi-port charger, improve the effective utilization rate of the power of the multi-port charger, and improve the user's fast charging experience.

Optionally, an embodiment of the present application further provides a charger, including the charging control device as described in the foregoing embodiments.

Optionally, an embodiment of the present application further provides a charger, including a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor, the above-mentioned The various processes of the embodiment of the charging control method can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

It should be noted that the chargers in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

The embodiment of the present application also provides a readable storage medium. The readable storage medium stores programs or instructions. When the program or instructions are executed by the processor, the various processes of the above charging control method embodiments can be achieved, and the same To avoid repetition, the technical effects will not be repeated here.

Wherein, the processor is the processor in the charger described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above charging control method embodiment Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be called system-on-chip, system-on-chip, system-on-a-chip, or system-on-a-chip.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of the present application.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (12)

1. A charger, comprising: the power supply comprises a power socket, a voltage converter, a first power converter, a second power converter, a first charging protocol chip, a second charging protocol chip, a first charging interface and a second charging interface;

the voltage converter is respectively connected with the power socket, the first power converter and the second power converter, the voltage converter is used for converting alternating current into direct current, and the first power converter and the second power converter are used for converting direct current power;

the first charging protocol chip is respectively connected with the first power converter and the first charging interface;

the second charging protocol chip is respectively connected with the second power converter and the second charging interface;

the first charging protocol chip is in communication connection with the second charging protocol chip;

the first charging interface and the second charging interface are respectively connected with the first equipment and the second equipment and carry out quick charging; under the condition that the first load power of the first device is continuously lower than a first threshold value within a preset time, the second charging interface receives first instruction information sent by a second charging protocol chip, and the second power converter increases the output power of the second charging interface to a first target value according to the first instruction information; or, when the drop amount of the first pull-load power of the first device in unit time exceeds a second threshold, the second charging interface receives second instruction information sent by a second charging protocol chip, and the second power converter increases the output power of the second charging interface to a second target value according to the second instruction information; or, when the first pull-load power of the first device is greater than the first output power, the second charging interface receives third instruction information sent by a second charging protocol chip, and the second power converter reduces the output power of the second charging interface to a third target value according to the third instruction information.

2. The charger of claim 1, wherein the first charging interface comprises:

the first voltage output end is used for charging, and a plurality of first data transmission ends are used for data transmission;

wherein the first voltage output terminal is connected to the first power converter; the first data transmission end is connected with the first charging protocol chip.

3. The charger of claim 2, further comprising:

the first sampling output module is arranged between the first voltage output end and the first power converter;

the first sampling output module is connected with the first charging protocol chip and used for sampling the voltage and the current of the first voltage output end.

4. The charger of claim 1, wherein the second charging interface comprises:

the second voltage output end is used for charging, and a plurality of second data transmission ends are used for data transmission;

wherein the second voltage output terminal is connected to the second power converter; and the second data transmission end is connected with the second charging protocol chip.

5. The charger of claim 4, further comprising:

the second sampling output module is arranged between the second voltage output end and the second power converter;

the second sampling output module is connected with the second charging protocol chip and used for collecting the voltage and the current of the second voltage output end.

6. A charging control method applied to the charger according to any one of claims 1 to 5, comprising:

under the condition that the first charging interface and the second charging interface are respectively connected with first equipment and second equipment and carry out quick charging, acquiring first pull load power of the first equipment;

under the condition that the first load power meets a preset condition, sending instruction information to the second charging interface, wherein the instruction information is used for instructing to adjust the output power of the second charging interface to a target value;

under the condition that the first load power meets a preset condition, sending instruction information to the second charging interface, including:

under the condition that the first load pulling power is continuously lower than a first threshold value within a preset time, sending first instruction information to the second charging interface, wherein the first instruction information is used for instructing to increase the output power of the second charging interface to a first target value;

or sending second instruction information to the second charging interface under the condition that the drop amount of the first load power in unit time exceeds a second threshold, wherein the second instruction information is used for indicating that the output power of the second charging interface is increased to a second target value;

or sending third instruction information to the second charging interface under the condition that the first load power is greater than the first output power, wherein the third instruction information is used for instructing to reduce the output power of the second charging interface to a third target value.

7. The method according to claim 6, wherein the second charging interface is a master interface, and the first charging interface is a slave interface;

the obtaining of the first pull-load power of the first device includes:

the second charging interface acquires first load pulling power of the first equipment at intervals of a first time length; or,

and under the condition that the first load pulling power of the first equipment is changed, the second charging interface receives the first load pulling power of the first equipment, which is sent by the first charging interface.

8. A charge control device, characterized by comprising:

the acquisition module is used for acquiring a first load-pulling power of the first equipment under the condition that the first charging interface and the second charging interface are respectively connected with the first equipment and the second equipment and carry out quick charging;

the sending module is used for sending instruction information to the second charging interface under the condition that the first load power meets a preset condition, wherein the instruction information is used for instructing to adjust the output power of the second charging interface to a target value;

the sending module comprises:

the first sending unit is used for sending first instruction information to the second charging interface under the condition that the first pull-load power is continuously lower than a first threshold value within a preset time, wherein the first instruction information is used for instructing to increase the output power of the second charging interface to a first target value; or,

the second sending unit is used for sending second instruction information to the second charging interface under the condition that the drop amount of the first load power in unit time exceeds a second threshold value, wherein the second instruction information is used for indicating that the output power of the second charging interface is increased to a second target value; or,

the third sending unit is configured to send third instruction information to the second charging interface when the first pull-load power is greater than the first output power, where the third instruction information is used to instruct to reduce the output power of the second charging interface to a third target value.

9. The charge control device according to claim 8, wherein the second charging interface is a master interface, and the first charging interface is a slave interface; the acquisition module is specifically configured to:

the second charging interface acquires first load pulling power of the first equipment at intervals of a first time length; or,

and under the condition that the first load pulling power of the first equipment is changed, the second charging interface receives the first load pulling power of the first equipment, which is sent by the first charging interface.

10. A charger, comprising: the charge control device according to any one of claims 8 to 9.

11. A charger, characterized by comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, implement the steps of the charging control method according to any one of claims 6 to 7.

12. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the charging control method according to any one of claims 6 to 7.

Images