METHOD OF CONTROL IN SYSTEMS OF WIRELESS POWER TRANSMISSION Russian patent published in 2017 - IPC H02J50/12 H02J50/80 

FIELD: electricity.

SUBSTANCE: WPT device comprises a first DC power and voltage supply source, an excitation circuit receiving an output voltage from the first DC power and voltage supply source and an AC drive and a voltage in the resonant circuit, a control circuit for selecting and applying a control signal to the second DC voltage source, a second DC voltage source for generating and applying DC voltage depending on the received voltage to the resonant circuit, and a resonance circuit comprising an adaptive circuit in which there is at least one variable capacitor, the capacitance of which depends on the DC voltage from the second DC voltage source, applied thereto, and at least one transmitting coil for inductive transmission of power to receiving coil(s) of at least one device to be charged.

EFFECT: increasing the transmission efficiency in the WPT wireless power transmission system due to increasing the flexibility of positioning a receiving or charged device with respect to the charging device.

11 cl, 4 dwg