Wireless charging system startup control method and device and wireless charging system
A power-on control and wireless charging technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve problems such as system power density and efficiency decline
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[0053] Example one
[0054] See figure 1 , Is a schematic flow chart of the wireless charging system startup control method provided by the first embodiment of the present invention. For ease of description, only the parts related to the embodiment of the present invention are shown. The wireless charging system startup control method is suitable for wireless charging systems. Specifically in this embodiment, refer to Figure 5 As shown, its wireless charging system includes:
[0055] The transmitting terminal 20 includes a first rectifier module 21, a high-frequency inverter module 22, a first control module 23, and a first wireless communication module 24 that are connected in sequence, and a transmitting coil 25 that is also connected to the high-frequency inverter module 22;
[0056] And the receiving end 30 includes a receiving coil 31, a second rectifying module 32, a buck module 33, a second control module 34, and a second wireless communication module 35 connected in sequen...
Example Embodiment
[0078] Example two
[0079] See figure 2 , Is a schematic flow chart of a wireless charging system startup control method provided by the second embodiment of the present invention. For ease of description, only the parts related to the embodiment of the present invention are shown. The wireless charging system startup control method is suitable for wireless charging For the corresponding part of the system, refer to the first embodiment above. Specifically, in this embodiment, the startup control method of the wireless charging system includes:
[0080] Step S11: Obtain the output terminal voltage of the buck module in the receiving terminal;
[0081] Among them, in the embodiment of the present invention, the above-mentioned specific steps of obtaining the voltage of the output terminal of the buck module in the receiving terminal refer to the above-mentioned embodiment one.
[0082] Step S21, judging whether the voltage at the output terminal is greater than a preset threshold;
...
Example Embodiment
[0106] Example three
[0107] See image 3 , Is a schematic diagram of modules of a wireless charging system startup control device provided by the third embodiment of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown. The wireless charging system startup control device includes:
[0108] The voltage obtaining module 11 is used to obtain the voltage at the output terminal of the buck module in the receiving end;
[0109] The voltage judgment module 21 is used to judge whether the output terminal voltage is greater than a preset threshold, and the preset threshold is determined according to the output voltage level of the buck module;
[0110] The voltage discharge module 31 is used to control the buck module to discharge voltage on the output terminal when the voltage judgment module 21 determines that the output terminal voltage is greater than the preset threshold value until the output terminal voltage is not gre...
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