Patent ID: 7151357

Claim:
An induction charge device assembly comprising: a) a portable electronic device having an induction coil; and b) an induction charge device having: I) an electric magnetic field generate and secondary coil react circuit electrically and magnetically coupled to the induction coil of the portable electronic device and controlling an electromagnetic varying of an electric magnetic field according to a load varying based on a distance between the portable electronic device and the induction charge device; ii) a detection and modulation generate circuit being a pulse frequency modulation generate circuit electrically connected to the electric magnetic field generate and secondary coil react circuit and detecting the electromagnetic varying and outputting pulse signals having frequencies corresponding to the electromagnetic varying; iii) a control switch circuit electrically connected to the electric magnetic field generate and secondary coil react circuit and selectively turning on and off a transistor switch based on the pulse signals; and iv) a power module electrically connected to the control switch circuit and providing power thereto, wherein a charge from the induction charge device to the portable electronic device is adjusted according to the pulse signals based on a distance between the portable electronic device and the induction charge device.