Abstract: It is disclosed a wireless power supplying system and an self adaptive adjustment method thereof. The method includes: a step for detecting an operating status of an electric power sending unit and determining, based on the detected operating status, whether the electric power transmitting unit satisfies a condition of a normal operation of the system and a step for determining, based on the above determination result, whether to adjust a master frequency of an oscillating circuit so that the master frequency of the oscillating circuit is between a resonance frequency of a transmitting coil and a resonance frequency of a receiving coil. The master frequency of the oscillating circuit is adjusted automatically, so that the master frequency is always close to the resonance frequency of the transmitting coil and that of the receiving coil, thereby maintaining stably the power output of the system.

Abstract: 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).

Abstract: An electronic device (100), a wireless power supplying system (10) thereof and a wireless power supplying method thereof. The electronic device (100) includes an internal function circuit (30) and the wireless power supplying system (10). The wireless power supply system (10) includes a wireless electric power transmitter (11), a wireless electric power receiver (12) and a power supply detection unit (13). The wireless electric power transmitter (11) includes transmitter control module (111) and a transmitter power supplying module (112). The wireless electric power receiver (12) receives the electric power from the transmitter power supplying module (112). The power supply detection unit (13) includes an electric power detection module (131), a processor (132) and an alarm module (133). The electric power detection module (131) detects an operating voltage received from the wireless electric power receiver (12); and the processor (132) compares the operating voltage with a preset operating voltage range.

Abstract: A wireless electric power receiving device and a wireless electric power transmission system are disclosed. The wireless electric power receiving device is coupled to a wireless electric power transmitting device, and comprises a receiving coil, a power supply circuit and an alarm unit. When the receiving coil is coupled, a coupling voltage is generated and outputted. The power supply circuit comprises a first receiving terminal coupled to the receiving coil, and compares the voltage with a preset operation voltage range to generate and output a control signal when the voltage is beyond the range. The alarm unit is electrically coupled to the power supply circuit to receive the control signal from the power supply circuit and to output an alarm signal according to the control signal. The device can prevent a user from misusing a household appliance in case of a deficient voltage.