CONTACTLESS POWER SUPPLY SYSTEM Russian patent published in 2012 - IPC H01F38/14 H02M5/10 

FIELD: electricity.

SUBSTANCE: contactless power supply system comprises a source of power supply for transfer of high-frequency capacity and a loading device, which receives high-frequency power in a contactless mode due to electromagnet induction, in order to supply it to the load. The source of power supply comprises a unit of power transfer, having the first power coil and an inverter's circuit, a query unit, having at least one primary signal coil and an oscillating circuit, a unit of signal detection and a control unit. The loading device comprises a unit of power receipt, comprising the secondary power coil joined in a magnetic manner with the primary power coil, and a unit of power conversion, the secondary signal coil joined in a magnetic manner with the primary signal coil, and a reaction unit controlled by the electromotive force induced in the secondary signal coil. The control unit stops transfer of power, when neither signal is detected, and performs power transfer, when a signal is detected.

EFFECT: reduced consumption of power supply source capacity in duty mode of a quantity of loading device coils.

19 cl, 19 dwg