Vorrichtung zum Übertragen von Daten oder Energie

摘要

The device has an antenna oscillating circuit (3, 4). The oscillation is transmitted to a transponder oscillating circuit (5, 6). In order that the transmission of energy or data is as effective as possible, the current or the voltage in the antenna oscillating circuit (3, 4) is measured and compared with a desired variable. In the event of deviation, a correction value is produced, by which the excitation current is increased or the resonance frequency f R , as a result of connecting an impedance (* capital Greek delta *C, * capital Greek delta *L) into the antenna oscillating circuit (3, 4), is adjusted to the excitation frequency f E .