WIRELESS INDUCTIVE POWER TRANSMISSION Russian patent published in 2019 - IPC H02J50/12 H02J5/00 

FIELD: electrical engineering.

SUBSTANCE: system for wireless transmission of power includes a power receiver and a power transmitter, which provides power to it using an inductive power signal. Power transmitter comprises variable resonant circuit (201) having variable resonant frequency and generating inductive power signal. Exciter (203) generates excitation signal, and load modulation receiver (303) demodulates load modulation of inductive power signal. Adapter (305) adapts operating frequency and resonant frequency for convergence and, in particular, is configured to control operating frequency and resonance frequency so that they are substantially identical. Adaptation of operating frequency and resonant frequency is additionally carried out in response to a measure of demodulation quality.

EFFECT: technical result consists in improvement of communication, in particular in reduction of intermodulation distortions.

17 cl, 25 dwg