Wireless charging system control method, device and wireless charging system
A wireless charging and control method technology, applied in circuit devices, battery circuit devices, control/regulation systems, etc., can solve the problems of inability to enter the normal charging state and the drop in the input voltage of the Buck module.
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Embodiment 1
[0028] In some alternative examples, please refer to figure 2 , figure 2 It is a schematic flowchart of an embodiment of a wireless charging system control method of the present application.
[0029] Such as figure 2 As shown, the first aspect of the present application provides a wireless charging system control method, the method includes the following steps:
[0030] S1100. Collect the first input voltage of the Buck module at the receiving end of the wireless charging system during the charging start process, wherein the charging current of the Buck module will increase during the charging start process, and the first input voltage will decrease;
[0031] The schematic diagram of the wireless charging system is as follows: figure 1 As shown, the wireless charging system includes a transmitter and a receiver. The transmitter includes a rectifier module, a high-frequency inverter module, and a transmitter coil. The receiver includes a receiver coil, a rectifier module,...
Embodiment 2
[0043] In some alternative embodiments, see image 3 , image 3 It is a schematic flow chart of activating the Buck module in an embodiment of the present application.
[0044] Such as image 3 As shown, before the step of collecting the first input voltage of the Buck module at the receiving end of the wireless charging system during the charging startup process, the wireless charging system control method provided by the present application further includes:
[0045] S1010, detecting the second input voltage of the Buck module when the wireless charging system starts;
[0046] S1020, judging whether the second input voltage is less than the module turn-on voltage threshold;
[0047] The second input voltage is the input voltage of the Buck module. When the charging is just started, after the high-frequency inverter module at the transmitter is turned on, the input voltage of the Buck module is gradually increased through the strategy of frequency conversion or phase shift...
Embodiment 3
[0051] In some alternative embodiments, see Figure 4 , Figure 4 It is a schematic flow chart of an embodiment of the wireless charging system control method provided in this application to control the wireless charging system to stop charging.
[0052] Such as Figure 4 As shown, after the step of continuing to increase the charging current of the Buck module until the charging current reaches the preset normal working charging current value, the wireless charging system control method provided by the present application further includes:
[0053] S1500. Detect the power information of the rechargeable battery, wherein the rechargeable battery is connected to the output terminal of the Buck module;
[0054] S1600. Judging whether the rechargeable battery is fully charged according to the power information;
[0055] The output terminal of the Buck module is connected to the rechargeable battery to charge the rechargeable battery. During implementation, the rechargeable bat...
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