CN107658924B - A wireless charging method and mobile terminal - Google Patents
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- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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Abstract
本发明提供一种无线充电方法和移动终端，其中，该方法包括：若检测到移动终端当前通过无线充电接收端进行无线充电，则监测充电负载电流值；根据充电负载电流值，确定无线充电接收端中输入至低压稳压器的目标电压值，其中，低压稳压器的输出电压值为进行无线充电的输入电压值；根据目标电压值，向无线充电接收端发送电压调整信号。本发明能够基于充电负载变化调节无线充电接收端中的目标电压值，确保无线充电接收端能够稳定输出进行无线充电的输入电压值，从而能够避免输入电压发生拉掉而导致无线充电时出现充断的现象。
The present invention provides a wireless charging method and a mobile terminal, wherein the method includes: if it is detected that the mobile terminal is currently being wirelessly charged through a wireless charging receiver, monitoring a charging load current value; and determining the wireless charging receiver according to the charging load current value The target voltage value input to the low-voltage regulator in the terminal, wherein the output voltage value of the low-voltage regulator is the input voltage value for wireless charging; according to the target voltage value, a voltage adjustment signal is sent to the wireless charging receiving terminal. The present invention can adjust the target voltage value in the wireless charging receiving end based on the change of the charging load, to ensure that the wireless charging receiving end can stably output the input voltage value for wireless charging, thereby preventing the input voltage from being pulled down and causing the charging and disconnection during wireless charging. The phenomenon.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a wireless charging method and a mobile terminal.
Background
At present, more and more wireless charging devices are used, and for mobile phones, the wireless charging efficiency and the wireless charging stability play an important role.
For wireless charging of QI standard, in the more mature scheme of the mobile phone, the charging power is basically below 10W, mainly with low power. The mobile phone has various use scenes, and when a user performs other heavy-load operations in the wireless charging process, due to the fact that the wireless charging power is low and the time delay of the communication between the wireless charging receiving end and the wireless charging transmitting end is long, the output voltage of the wireless charging receiving end is unstable, even the output voltage of the wireless charging receiving end is pulled off, and the phenomenon of charging disconnection in the wireless charging process is caused.
Disclosure of Invention
The invention aims to provide a wireless charging method and a mobile terminal, and aims to solve the problem that the output voltage of a wireless charging receiving end is unstable in the wireless charging process in the prior art.
In a first aspect, an embodiment of the present invention provides a wireless charging method applied to a mobile terminal, where the method includes:
if the mobile terminal is detected to be wirelessly charged through the wireless charging receiving end currently, monitoring the current value of the charging load;
determining a target voltage value input to a low-voltage regulator in a wireless charging receiving end according to the charging load current value, wherein the output voltage value of the low-voltage regulator is the input voltage value for wireless charging;
and sending a voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value.
In a second aspect, an embodiment of the present invention provides a mobile terminal, where the mobile terminal includes:
the first monitoring module is used for monitoring the current value of the charging load if the mobile terminal is detected to be wirelessly charged through the wireless charging receiving terminal currently;
the first determining module is used for determining a target voltage value input to the low-voltage stabilizer in the wireless charging receiving end according to the charging load current value, wherein the output voltage value of the low-voltage stabilizer is an input voltage value for wireless charging;
and the sending module is used for sending a voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value.
In a third aspect, an embodiment of the present invention provides a mobile terminal, including: the wireless charging system comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the wireless charging method when being executed by the processor.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the wireless charging method as described above.
According to the embodiment of the invention, when the mobile terminal is wirelessly charged through the wireless charging receiving terminal, the charging load current value is monitored, the target voltage value input to the low-voltage stabilizer in the wireless charging receiving terminal is determined according to the charging load current value, and the voltage adjusting signal is sent to the wireless charging receiving terminal according to the target voltage value, so that the target voltage value in the wireless charging receiving terminal can be adjusted based on charging load change, the wireless charging receiving terminal is ensured to stably output the input voltage value for wireless charging, and the phenomenon of charging disconnection caused by the fact that the input voltage is pulled off during wireless charging can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic flowchart illustrating a wireless charging method according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a connection between a mobile terminal and a wireless charging receiver according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wireless charging receiving end according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a wireless charging method according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a relationship between a preset current value interval and a target voltage value according to an embodiment of the present invention;
fig. 6a is a block diagram of a mobile terminal according to an embodiment of the present invention;
fig. 6b is a second block diagram of the mobile terminal according to the embodiment of the present invention;
fig. 7 is a third block diagram of a mobile terminal according to an embodiment of the present invention;
fig. 8 is a block diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, a flow chart of a wireless charging method according to an embodiment of the invention is shown.
The embodiment of the invention provides a wireless charging method, which is applied to a mobile terminal and can comprise the following steps:
In this step, the mobile terminal is connected with the wireless charging receiving terminal, wireless charging is currently performed through the wireless charging receiving terminal, and a charging load current value of the mobile terminal is monitored, wherein the charging load current value can reflect changes of a charging load. In this embodiment, as shown in fig. 2, a direct current power input interface (DCIN) is disposed on the mobile terminal, and a charging integrated circuit of the mobile terminal is connected to the wireless charging receiving terminal through the DCIN to implement wireless charging. In one example, the charging load current value may be monitored by a charging integrated circuit.
And 102, determining a target voltage value input to the low-voltage stabilizer in the wireless charging receiving end according to the charging load current value, wherein the output voltage value of the low-voltage stabilizer is the input voltage value for wireless charging.
Here, the wireless charging receiving terminal includes a low voltage regulator for regulating a target voltage value rectified and output in the wireless charging receiving terminal and outputting an input voltage value for wireless charging. In the step, the target voltage value in the wireless charging receiving terminal is determined based on the charging load current value, so that the target voltage value can be adjusted based on the charging load change, the wireless charging receiving terminal can stably output the input voltage value for wireless charging, and the phenomenon of charging disconnection caused by the fact that the input voltage is pulled off during wireless charging can be avoided. Specifically, in the embodiment, the target voltage value in the wireless charging receiving terminal may be determined according to the charging load current value by an Application Processor (AP) of the mobile terminal. In one example, as shown in fig. 2, the application processor is connected to the charging Integrated Circuit via an Integrated Circuit bus (I2C) to receive the monitored charging load current value; wherein the integrated circuit bus includes a Serial Data Line (SDA) and a Serial Clock Line (SCL).
And 103, sending a voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value.
In this step, the mobile terminal sends a voltage adjustment signal to the wireless charging receiving terminal according to the determined target voltage value, so that the wireless charging receiving terminal can adjust the corresponding target voltage value according to the voltage adjustment signal, thereby ensuring stable output of the input voltage value for wireless charging and improving the stability of output. Specifically, the application processor of the mobile terminal is connected with the wireless charging receiving terminal through the integrated circuit bus, and sends the voltage adjusting signal to the wireless charging receiving terminal.
In one example, as shown in fig. 3, the wireless charging receiving terminal may include a receiving coil, a synchronous rectifier, a control integrated circuit, and a low voltage regulator; the synchronous rectifier is respectively connected with the receiving coil, the control integrated circuit and the low-voltage stabilizer; the output end of the low-voltage stabilizer is connected with a charging integrated circuit of the mobile terminal through a direct-current power supply input interface, and an input voltage value for wireless charging is output to the mobile terminal; the control integrated circuit is connected with the application processor of the mobile terminal through an integrated circuit bus, and is used for receiving a voltage adjusting signal sent by the mobile terminal and controlling the synchronous rectifier to output a corresponding target voltage value according to the voltage adjusting signal. In fig. 3, Vout represents an output voltage value of the low voltage regulator, that is, an input voltage value for performing wireless charging; vtarget represents a target voltage value in the wireless charging receiving terminal. During wireless charging, energy is transmitted from the charger to the wireless charging receiving end through the receiving coil in a magnetic induction mode through the wireless charging transmitting end; the wireless charging receiving terminal outputs a target voltage value after rectifying waveforms of voltage and current through the synchronous rectifier, and then outputs an input voltage value for wireless charging to a mobile terminal connected with the wireless charging receiving terminal after the target voltage value is regulated by a low-voltage regulator.
In this embodiment, when the mobile terminal wirelessly charges through the wireless charging receiving terminal, the charging load current value is monitored, the target voltage value input to the low voltage regulator in the wireless charging receiving terminal is determined according to the charging load current value, and the voltage adjustment signal is sent to the wireless charging receiving terminal according to the target voltage value, so that the mobile terminal can adjust the target voltage value in the wireless charging receiving terminal based on the charging load change, and ensure that the wireless charging receiving terminal can stably output the input voltage value for wireless charging, thereby avoiding the phenomenon that the charging is disconnected when the input voltage is pulled off to cause wireless charging.
In an embodiment, the step 102 of determining the target voltage value input to the low voltage regulator in the wireless charging receiving terminal according to the charging load current value may include the following steps:
and comparing the charging load current value with a plurality of preset current value intervals, and determining the target voltage value in the wireless charging receiving end according to the preset corresponding relation between the plurality of preset current value intervals and the corresponding target voltage value when the charging load current value is in one of the preset current value intervals.
In this embodiment, a plurality of preset current value intervals are divided in advance based on the charging load variation condition, and a corresponding relationship between the plurality of preset current value intervals and corresponding target voltage values is set, wherein each preset current value interval corresponds to one target voltage value. In this embodiment, when the monitored charging load current value is within one of the preset current value intervals, based on the corresponding relationship, the corresponding target voltage value may be determined, so that the target voltage value is adapted to the charging load change, and it is further ensured that the wireless charging receiving terminal can stably output the input voltage value for wireless charging, thereby avoiding a phenomenon of charging disconnection caused by the input voltage being pulled off during wireless charging.
In normal use, when the wireless charging receiving end works, the charging load current value is within a preset current value interval close to the maximum load charging, at the moment, if a larger sudden load exists, the charging load current value easily exceeds the maximum charging load current value, and at the moment, the input voltage has the risk of being pulled off.
For this reason, in an embodiment of the present invention, in step 102, the step of determining the target voltage value input to the low voltage regulator in the wireless charging receiving terminal according to the charging load current value may include the following steps:
and when the charging load current value is greater than or equal to the maximum charging load current value, determining the target voltage value as the sum of the calibration input voltage value and the preset value.
In this embodiment, when the charging load current value is greater than or equal to the maximum charging load current value, the sum of the calibrated input voltage value and the preset value is determined as the target voltage value, so that a margin is reserved between the target voltage value and the calibrated input voltage value, thereby reducing the risk of pulling out the input voltage. In an example, the preset value may be 50 mV.
In some embodiments of the invention, the method may further comprise the steps of:
monitoring an input voltage value input into the mobile terminal through the wireless charging receiving terminal;
and when the input voltage value is larger than the preset voltage value, determining that the mobile terminal is currently charged wirelessly through the wireless charging receiving terminal.
In this embodiment, whether the input voltage value can be effectively charged is determined by comparing the monitored input voltage value with a preset voltage value, and when the input voltage value is greater than the preset voltage value, it is determined that the mobile terminal is currently wirelessly charged through the wireless charging receiving terminal.
In a specific example, the mobile terminal is a mobile phone, and the rated output of the wireless charging receiving terminal is 5V/1A. In this example, three preset current value intervals are divided in advance based on the charging load variation, I bus ≦ I1, I1 ≦ I2, and I2 ≦ I3, where Ibus is the charging load current value, and correspondingly, as shown in fig. 5, the target voltage value is divided into three corresponding step voltages, V1, V2, and V3; when Ibus > I3, the target voltage value corresponds to V4, and Vout is the nominal input voltage value in fig. 5. Referring to fig. 4, in this specific example, the implementation flow of the wireless charging method is as follows:
In step 403, the mobile phone monitors Ibus flowing through the DCIN. In this step, the mobile phone monitors the charging load current value Ibus flowing through the DCIN.
And step 404, judging that the Ibus is less than or equal to I1. Here, the charging load current value Ibus is compared with three preset current value intervals, in this step, I1 may be 300mA, when Ibus is less than or equal to I1, it is determined that Ibus is in the corresponding preset current value interval, at this time, the mobile phone is in a light load, step 405 is executed, otherwise, step 406 is executed.
In step 405, Vtarget is set to V1. In this step, the mobile phone determines that the target voltage Vtarget in the wireless charging receiver is V1, and sends a corresponding voltage adjustment signal to the wireless charging receiver, so that the wireless charging receiver sets the target voltage to V1, where V1 may be 5.4V in this example.
And step 406, judging that the Ibus is less than or equal to I2. In this step, I2 may be 800mA, when Ibus is not greater than I2, it is determined that Ibus is in the corresponding preset current value interval, and at this time, the mobile phone is in a medium load, step 407 is executed, otherwise, step 408 is executed.
In step 407, Vtarget is set to V2. In this step, the mobile phone determines that the target voltage Vtarget in the wireless charging receiver is V2, and sends a corresponding voltage adjustment signal to the wireless charging receiver, so that the wireless charging receiver sets the target voltage to V2, where V2 may be 5.2V in this example.
And step 408, judging that the Ibus is less than or equal to I3. In this step, I3 may be 900mA, when Ibus is not greater than I3, it is determined that Ibus is in the corresponding preset current value interval, and at this time, the mobile phone is under heavy load, step 409 is executed, otherwise, step 410 is executed.
In step 409, Vtarget is set to V3. In this step, the handset determines that the target voltage Vtarget in the wireless charging receiver is V3, and sends a corresponding voltage adjustment signal to the wireless charging receiver, so that the wireless charging receiver sets the target voltage to V3, where V3 may be 5.15V in this example.
In step 410, Vtarget is set to Vout +50 mA. Here, in order to avoid the risk that the input voltage is pulled down due to a larger sudden load of the charging load current value Ibus in a preset current value interval close to the maximum load charging, in this step, the handset determines that the target voltage value Vtarget in the wireless charging receiving end is V4, and V4 is Vout + preset value is 5.05V, where in this example, the input voltage value Vout is 5V and the preset value is 50 mA; the mobile phone sends a corresponding voltage adjusting signal to the wireless charging receiving end, so that the wireless charging receiving end sets the target voltage value to be 5.05V.
In step 411, the delay T is 1 second. In this step, T ═ 1 second is the polling processing time, and the mobile phone detects dynamic changes in load in real time.
According to the wireless charging method provided by the embodiment of the invention, when the mobile terminal is wirelessly charged through the wireless charging receiving terminal, the charging load current value is monitored, the target voltage value input to the low-voltage stabilizer in the wireless charging receiving terminal is determined according to the charging load current value, and the voltage adjusting signal is sent to the wireless charging receiving terminal according to the target voltage value, so that the mobile terminal can adjust the target voltage value in the wireless charging receiving terminal based on charging load change, the wireless charging receiving terminal can be ensured to stably output the input voltage value for wireless charging, and the phenomenon of charging disconnection caused by the fact that the input voltage is pulled off during wireless charging can be avoided.
Based on the wireless charging method, the embodiment of the invention also provides the mobile terminal for implementing the method.
Referring to fig. 6a, which is a block diagram illustrating a structure of a mobile terminal according to an embodiment of the present invention, the mobile terminal 600 according to the embodiment of the present invention may include: a first monitoring module 610, a first determining module 620, and a transmitting module 630.
The first monitoring module 610 is configured to monitor a charging load current value if it is detected that the mobile terminal is currently wirelessly charged through the wireless charging receiving terminal;
the first determining module 620 is configured to determine a target voltage value input to the low voltage regulator in the wireless charging receiving terminal according to the charging load current value, where an output voltage value of the low voltage regulator is an input voltage value for performing wireless charging;
the sending module 630 is configured to send a voltage adjustment signal to the wireless charging receiving terminal according to the target voltage value.
On the basis of fig. 6a, with reference to fig. 6b, a second block diagram of the mobile terminal according to the embodiment of the present invention is shown.
In an embodiment, the first determining module 620 may include: a first determination unit 621.
The first determining unit 621 is configured to compare the charging load current value with a plurality of preset current value intervals, and determine the target voltage value at the wireless charging receiving end according to a preset correspondence relationship between the plurality of preset current value intervals and the corresponding target voltage value when the charging load current value is within one of the preset current value intervals.
In an embodiment, the first determining module 620 may include: a second determination unit 622.
The second determining unit 622 is configured to determine the target voltage value as a sum of the calibration input voltage value and a preset value when the charging load current value is greater than or equal to the maximum charging load current value.
In an embodiment, the mobile terminal 600 may further include: a second monitoring module 640 and a second determining module 650.
The second monitoring module 640 is configured to monitor an input voltage value input to the mobile terminal through the wireless charging receiving terminal;
the second determining module 650 is configured to determine that the mobile terminal is currently wirelessly charged through the wireless charging receiving terminal when the input voltage value is greater than the preset voltage value.
According to the mobile terminal provided by the embodiment of the invention, when the mobile terminal is wirelessly charged through the wireless charging receiving terminal, the charging load current value is monitored, the target voltage value input to the low-voltage stabilizer in the wireless charging receiving terminal is determined according to the charging load current value, and the voltage adjusting signal is sent to the wireless charging receiving terminal according to the target voltage value, so that the mobile terminal can adjust the target voltage value in the wireless charging receiving terminal based on charging load change, the wireless charging receiving terminal can be ensured to stably output the input voltage value for wireless charging, and the phenomenon of charging disconnection caused by the fact that the input voltage is pulled off during wireless charging can be avoided.
An embodiment of the present invention provides a mobile terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of: if the mobile terminal is detected to be wirelessly charged through the wireless charging receiving end currently, monitoring the current value of the charging load; determining a target voltage value input to a low-voltage regulator in a wireless charging receiving end according to the charging load current value, wherein the output voltage value of the low-voltage regulator is an input voltage value for wireless charging; and sending a voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value.
Optionally, the processor, when executing the computer program, may further implement the steps of: and comparing the charging load current value with a plurality of preset current value intervals, and determining the target voltage value in the wireless charging receiving end according to the preset corresponding relation between the plurality of preset current value intervals and the corresponding target voltage value when the charging load current value is in one of the preset current value intervals.
Optionally, the processor, when executing the computer program, may further implement the steps of: and when the charging load current value is greater than or equal to the maximum charging load current value, determining the target voltage value as the sum of the calibration input voltage value and the preset value.
Optionally, the processor, when executing the computer program, may further implement the steps of: monitoring an input voltage value input into the mobile terminal through the wireless charging receiving terminal; and when the input voltage value is larger than the preset voltage value, determining that the mobile terminal is currently charged wirelessly through the wireless charging receiving terminal.
According to the mobile terminal provided by the embodiment of the invention, when the mobile terminal is wirelessly charged through the wireless charging receiving terminal, the charging load current value is monitored, the target voltage value input to the low-voltage stabilizer in the wireless charging receiving terminal is determined according to the charging load current value, and the voltage adjusting signal is sent to the wireless charging receiving terminal according to the target voltage value, so that the mobile terminal can adjust the target voltage value in the wireless charging receiving terminal based on charging load change, the wireless charging receiving terminal can be ensured to stably output the input voltage value for wireless charging, and the phenomenon of charging disconnection caused by the fact that the input voltage is pulled off during wireless charging can be avoided.
An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following steps: if the mobile terminal is detected to be wirelessly charged through the wireless charging receiving end currently, monitoring the current value of the charging load; determining a target voltage value input to a low-voltage regulator in a wireless charging receiving end according to the charging load current value, wherein the output voltage value of the low-voltage regulator is an input voltage value for wireless charging; and sending a voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value.
Optionally, the computer program when executed by the processor may further implement the steps of: and comparing the charging load current value with a plurality of preset current value intervals, and determining the target voltage value in the wireless charging receiving end according to the preset corresponding relation between the plurality of preset current value intervals and the corresponding target voltage value when the charging load current value is in one of the preset current value intervals.
Optionally, the computer program when executed by the processor may further implement the steps of: and when the charging load current value is greater than or equal to the maximum charging load current value, determining the target voltage value as the sum of the calibration input voltage value and the preset value.
Optionally, the computer program when executed by the processor may further implement the steps of: monitoring an input voltage value input into the mobile terminal through the wireless charging receiving terminal; and when the input voltage value is larger than the preset voltage value, determining that the mobile terminal is currently charged wirelessly through the wireless charging receiving terminal.
The computer-readable storage medium provided by the embodiment of the invention monitors the charging load current value when the mobile terminal is wirelessly charged through the wireless charging receiving terminal, determines the target voltage value input to the low-voltage regulator in the wireless charging receiving terminal according to the charging load current value, and sends the voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value, so that the target voltage value in the wireless charging receiving terminal can be adjusted based on charging load change, the wireless charging receiving terminal is ensured to stably output the input voltage value for wireless charging, and the phenomenon of charging disconnection caused by the fact that the input voltage is pulled off during wireless charging can be avoided.
Fig. 7 is a third block diagram of a mobile terminal according to an embodiment of the present invention. The mobile terminal 700 shown in fig. 7 includes: at least one processor 701, memory 702, at least one network interface 704, and other user interfaces 703. The various components in the mobile terminal 700 are coupled together by a bus system 705. It is understood that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 7 as the bus system 705.
The user interface 703 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It is to be understood that the memory 702 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (ddr SDRAM ), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 702 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 702 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 7021 and application programs 7022.
The operating system 7021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application programs 7022 include various application programs such as a display controller, a Media Player (Media Player), a Browser (Browser), and the like, and are used to implement various application services. Programs that implement methods in accordance with embodiments of the present invention can be included within application program 7022.
In the embodiment of the present invention, by calling a program or an instruction stored in the memory 702, specifically, a program or an instruction stored in the application 7022, the processor 701 is configured to monitor a charging load current value if it is detected that the mobile terminal is currently wirelessly charged through the wireless charging receiving terminal; determining a target voltage value input to a low-voltage regulator in a wireless charging receiving end according to the charging load current value, wherein the output voltage value of the low-voltage regulator is an input voltage value for wireless charging; and sending a voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value.
The method disclosed in the above embodiments of the present invention may be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The Processor 701 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and performs the steps of the above method in combination with the hardware thereof.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Optionally, the processor 701 is further configured to compare the charging load current value with a plurality of preset current value intervals, and when the charging load current value is in one of the preset current value intervals, determine the target voltage value in the wireless charging receiving terminal according to a preset correspondence between the plurality of preset current value intervals and the corresponding target voltage value.
Optionally, the processor 701 is further configured to determine the target voltage value as a sum of the calibration input voltage value and a preset value when the charging load current value is greater than or equal to the maximum charging load current value.
Optionally, the processor 701 is further configured to monitor an input voltage value input to the mobile terminal through the wireless charging receiving terminal; and when the input voltage value is larger than the preset voltage value, determining that the mobile terminal is currently charged wirelessly through the wireless charging receiving terminal.
The mobile terminal 700 can implement the processes implemented by the mobile terminal in the foregoing embodiments, and details are not repeated here to avoid repetition.
According to the mobile terminal provided by the embodiment of the invention, when the mobile terminal is wirelessly charged through the wireless charging receiving terminal, the charging load current value is monitored, the target voltage value input to the low-voltage stabilizer in the wireless charging receiving terminal is determined according to the charging load current value, and the voltage adjusting signal is sent to the wireless charging receiving terminal according to the target voltage value, so that the mobile terminal can adjust the target voltage value in the wireless charging receiving terminal based on charging load change, the wireless charging receiving terminal can be ensured to stably output the input voltage value for wireless charging, and the phenomenon of charging disconnection caused by the fact that the input voltage is pulled off during wireless charging can be avoided.
Fig. 8 is a fourth block diagram of a mobile terminal according to an embodiment of the present invention. Specifically, the mobile terminal 800 in fig. 8 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), or a vehicle-mounted computer.
The mobile terminal 800 in fig. 8 includes a Radio Frequency (RF) circuit 810, a memory 820, an input unit 830, a display unit 840, a processor 860, an audio circuit 870, a wifi (wireless fidelity) module 880, and a power supply 890.
The input unit 830 may be used, among other things, to receive numeric or character information input by a user and to generate signal inputs related to user settings and function control of the mobile terminal 800. Specifically, in the embodiment of the present invention, the input unit 830 may include a touch panel 831. The touch panel 831, also referred to as a touch screen, can collect touch operations performed by a user on or near the touch panel 831 (e.g., operations performed by the user on the touch panel 831 using a finger, a stylus, or any other suitable object or accessory), and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 831 may include two portions, i.e., a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 860, and can receive and execute commands sent by the processor 860. In addition, the touch panel 831 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 831, the input unit 830 may include other input devices 832, and the other input devices 832 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
Among other things, the display unit 840 may be used to display information input by the user or information provided to the user and various menu interfaces of the mobile terminal 800. The display unit 840 may include a display panel 841, and the display panel 841 may be alternatively configured in the form of an LCD or an Organic Light-Emitting Diode (OLED), or the like.
It should be noted that the touch panel 831 can overlay the display panel 841 to form a touch display screen, which, when it detects a touch operation thereon or nearby, is passed to the processor 860 to determine the type of touch event, and then the processor 860 provides a corresponding visual output on the touch display screen according to the type of touch event.
The touch display screen comprises an application program interface display area and a common control display area. The arrangement modes of the application program interface display area and the common control display area are not limited, and can be an arrangement mode which can distinguish two display areas, such as vertical arrangement, left-right arrangement and the like. The application interface display area may be used to display an interface of an application. Each interface may contain at least one interface element such as an icon and/or widget desktop control for an application. The application interface display area may also be an empty interface that does not contain any content. The common control display area is used for displaying controls with high utilization rate, such as application icons like setting buttons, interface numbers, scroll bars, phone book icons and the like.
The processor 860 is a control center of the mobile terminal 800, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of the mobile terminal 800 and processes data by operating or executing software programs and/or modules stored in the first memory 821 and calling data stored in the second memory 822, thereby integrally monitoring the mobile terminal 800. Optionally, processor 860 may include one or more processing units.
In the embodiment of the present invention, the processor 860 is configured to monitor the charging load current value if it is detected that the mobile terminal is currently wirelessly charged through the wireless charging receiving terminal by calling the software program and/or module stored in the first memory 821 and/or the data stored in the second memory 822; determining a target voltage value input to a low-voltage regulator in a wireless charging receiving end according to the charging load current value, wherein the output voltage value of the low-voltage regulator is an input voltage value for wireless charging; and sending a voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value.
Optionally, the processor 860 is further configured to compare the charging load current value with a plurality of preset current value intervals, and when the charging load current value is in one of the preset current value intervals, determine the target voltage value in the wireless charging receiving terminal according to a preset correspondence between the plurality of preset current value intervals and the corresponding target voltage value.
Optionally, processor 860 is further configured to determine the target voltage value as a sum of the calibrated input voltage value and the preset value when the charging load current value is greater than or equal to the maximum charging load current value.
Optionally, the processor 860 is further configured to monitor an input voltage value input to the mobile terminal through the wireless charging receiving terminal; and when the input voltage value is larger than the preset voltage value, determining that the mobile terminal is currently charged wirelessly through the wireless charging receiving terminal.
Therefore, the mobile terminal provided by the embodiment of the invention monitors the charging load current value when the mobile terminal is wirelessly charged through the wireless charging receiving terminal, determines the target voltage value input to the low-voltage regulator in the wireless charging receiving terminal according to the charging load current value, and sends the voltage adjusting signal to the wireless charging receiving terminal according to the target voltage value, so that the mobile terminal can adjust the target voltage value in the wireless charging receiving terminal based on charging load change, ensure that the wireless charging receiving terminal can stably output the input voltage value for wireless charging, and avoid the phenomenon of charging disconnection caused by the pulling-off of the input voltage.
It is noted that, in the embodiments of the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
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| CN112636403B (en) * | 2019-09-24 | 2023-11-21 | 北京小米移动软件有限公司 | Wireless charging control method and device and computer storage medium |
| CN110829559A (en) * | 2019-11-11 | 2020-02-21 | 北京品驰医疗设备有限公司 | Implantable medical system and wireless energy transmission power control method and device thereof |
| CN116266767B (en) * | 2021-12-17 | 2024-08-27 | 华润微集成电路(无锡)有限公司 | Method for applying virtual load to wireless charging receiving end |
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| CN104272550A (en) * | 2012-10-16 | 2015-01-07 | 罗姆股份有限公司 | Power receiving control circuit, method for controlling wireless power receiving device, and electronic device |
| CN106887961A (en) * | 2015-11-02 | 2017-06-23 | 现代自动车株式会社 | The active rectifier of wireless power transmission system, vehicle assembly and its operating method |
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| KR20170042944A (en) * | 2015-10-12 | 2017-04-20 | 현대자동차주식회사 | Method and apparatus for wireless charging using variable switching frequency |
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| CN104272550A (en) * | 2012-10-16 | 2015-01-07 | 罗姆股份有限公司 | Power receiving control circuit, method for controlling wireless power receiving device, and electronic device |
| CN104184325A (en) * | 2014-08-07 | 2014-12-03 | 哈尔滨工程大学 | Rapid dynamic compensation control apparatus and control method of voltage control type DC/DC converter |
| CN106887961A (en) * | 2015-11-02 | 2017-06-23 | 现代自动车株式会社 | The active rectifier of wireless power transmission system, vehicle assembly and its operating method |
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