Resonant circuit with stabilized phase coupling.

摘要

The invention relates to an electronic control for 2 resonant circuits used to transmit power to a mobile unit. The two resonant circuits are controlled so that their oscillations show a pre-defined phase shift in relation to one another. Moreover, a phase shift is added to the transmitted signal on one resonant circuit for transmission of data to the mobile unit. In the mobile unit, the phase relationship between the signals allows the resonant circuit which transmits the data to be identified. Use is made of the oscillation of the resonant circuit which transmits no data per phase shift in order to form the clock signal in the mobile unit. ……