Abstract: A non-contact electric inductance circuit for a power source converts input alternating current into signals with harmonic vibration and of high frequency, a coil of a set of corresponding receiver equipment receives the harmonic vibration of the signals to convert it into electric energy; wherein the entire electric inductance circuit has a driving circuit, a harmonic circuit, a feedback circuit, a micro-processing circuit and an adapted-to-adjusting-frequency oscillating circuit integrated with one another. When in operation, the alternating electric current passes to the harmonic circuit after being amplified through the driving circuit, and the feedback circuit transmits the voltage or current of the harmonic circuit to the micro-processing circuit that analyses the value of the voltage or current detected, in order that the entire electric inductance circuit can generate the best harmonic frequency.

Abstract: A non-contact electric inductance circuit for a power source converts input alternating current into signals with harmonic vibration and of high frequency, a coil of a set of corresponding receiver equipment receives the harmonic vibration of the signals to convert it into electric energy; wherein the entire electric inductance circuit has a driving circuit, a harmonic circuit, a feedback circuit, a micro-processing circuit and an adapted-to-adjusting-frequency oscillating circuit integrated with one another. When in operation, the alternating electric current passes to the harmonic circuit after being amplified through the driving circuit, and the feedback circuit transmits the voltage or current of the harmonic circuit to the micro-processing circuit that analyses the value of the voltage or current detected, in order that the entire electric inductance circuit can generate the best harmonic frequency.

Abstract: The wireless mouse device free of a battery of the present invention is integrated to have a power processing circuit and a sensing coil. A receiver unit for receiving the signals of the mouse is integrated to have therein an alternative signal circuit and an emitting/receiving coil, so that the receiver unit can generate high frequency signals emitted via an emitting/receiving coil; the mouse can receive harmonic vibrations of the high frequency signals through the sensing coil, and the power processing circuit will make pressure-multiplication processing for the harmonic vibrations received to make the latter an electric power for driving the mouse.