SYSTEM OF CONTACTLESS TRANSFER OF POWER Russian patent published in 2010 - IPC H02J17/00 H01F38/14 

FIELD: electricity.

SUBSTANCE: system comprises power transfer device, including coils that transmit energy, and power receiving device, including coil that receives power, which has inductance connection to power-transmitting coils. Device comprises the following components: area of placement, where multiple power-transmitting coils are placed, arranged under area of placement. Generator generates oscillations in according power-transmitting coils, exciting them one by one. Detection device detects inductances of according power-transmitting coils. Detection device detects a point on area of placement, where power-receiving device is placed, on the basis of inductances of according coils that transmit power, which are detected by detection device. Generator sets multiple power-transmitting coils to be excited, on the basis of location detected by detection device, and establishes parametres of currents that flow into according power-transmitting coils, so that mutual shift is provided for curve of currents that flow into multiple set power-transmitting coils.

EFFECT: saving of power due to generation of oscillations only in those power-transmitting coils, which contribute to contactless charging, without use of any communication means.

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