Vorrichtung und Verfahren zum kontaktlosen Übertragen von Energie oder Daten

摘要

An impedance (CAR) is fed to an LC-oscillating circuit only in phases in order to adapt the resonant frequency (fR) of the oscillating circuit to the excitation frequency (fE). This is brought about by measuring the difference between the resonant frequency and the excitation frequency and, as a function thereof, switching the impedance (CAR) in a controlled manner to the oscillating circuit by means of a charging current (iCAR). At the same time, the charging current is phase-controlled such that only one active portion of the impedance (CAReff) is connected to the oscillating circuit.