WIRELESS POWER SUPPLY SYSTEM AND SELF ADAPTIVE REGULATION METHOD THEREOF

摘要

A wireless power supply system and a self adaptive regulation method thereof. The method includes the following steps: detecting an operating mode of an electric power sending unit (210); judging whether the electric power sending unit coincides with a normal operation condition of the wireless power supply system (200) according to the detected operating mode; determining according to a judging result whether to regulate a main oscillating frequency of an oscillating circuit (213) or not, so as to make the main oscillating frequency of the oscillating circuit be maintained between the resonant frequency of a sending coil (214) and the resonant frequency of a receiving coil (221). The main oscillating frequency of the oscillating circuit is regulated automatically, so as to make the main oscillating frequency be close to the resonant frequency of coils in the electric power sending unit and a receiving unit (220) all the time and make the system maintain a stable power output to ensure the normal operation of the wireless power supply system.