The invention discloses a self-adaptive wireless charging receiving end which comprises a load, a filter, a rectifier and a receiving coil, and further comprises a receiving end compensation network connected between the rectifier and the receiving coil, and the receiving end compensation network is provided with a capacitance-adjustable compensation capacitor; the receiving end sampling circuit is connected to the output side of the receiving end compensation network and the input side and the output side of the rectifier; the receiving end adjusting circuit is connected with the capacitance value adjustable compensation capacitor; the transmitting end communication controller is respectively connected with the receiving end sampling circuit and the receiving end adjusting circuit; the first switch is connected between the receiving end adjusting circuit and the capacitance adjustable compensation capacitor; the second switch is connected across the output side of the rectifier. And according to the deviation of a certain element parameter, the resonance state is readjusted by adjusting the capacitance value of one or more compensation capacitors. When element parameters drift, the compensation capacitor is adjusted to enable the system to maintain stable operation. The protection circuit protects the receiving end and the load from being damaged under the no-load condition.
本发明公开了自适应无线充电接收端包括负载、滤波器、整流器和接收线圈,还包括接收端补偿网络,连接在整流器和接收线圈之间,接收端补偿网络具有容值可调补偿电容;接收端采样电路,连接在接收端补偿网络的输出侧、整流器的输入侧和输出侧;接收端调节电路,连接容值可调补偿电容;发射端通信控制器,分别与接收端采样电路、接收端调节电路连接;第一开关连接在接收端调节电路和容值可调补偿电容之间;第二开关连接在整流器的输出侧的两端。某个元件参数出现的偏差,通过调节一个或多个补偿电容的电容值,重新调整谐振状态。元件参数发生漂移时,调节补偿电容使系统保持稳定运行。置保护电路在空载的情况下,保护接收端和负载不被损坏。
Self-adaptive wireless charging receiving end
自适应无线充电接收端
2022-05-13
Patent
Elektronische Ressource
Chinesisch
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