METHOD FOR WIRELESSLY TRANSMITTING ELECTRIC ENERGY TO AN ENERGY RECEIVING DEVICE, ENERGY TRANSMITTING DEVICE, AND SYSTEM CONSISTING OF AN ENERGY RECEIVING DEVICE AND AN ENERGY TRANSMITTING DEVICE

摘要

The invention relates to a method for wirelessly transmitting electric energy to an energy receiving device (14), in particular in order to charge a battery, by means of at least one energy transmitting device (12), in particular an induction transmission device. In at least one method step (104), electric energy is wirelessly transmitted to the energy receiving device (14) via a voltage signal (22) by means of at least one resonant circuit (20) of the energy transmitting device (12). According to the invention, in at least one method step (106), in particular during a transmission process, at least one control circuit (26) of the energy transmitting device (12) is operated so as to excite the resonant circuit (20) with a control frequency which corresponds to a fraction of a resonance frequency of a resonance system (21), in particular an unloaded resonance system, consisting of the energy receiving device (14) and the energy transmitting device (12), in particular a receiving element (18) of the energy receiving device (14) and/or a transmitting element (16) of the energy transmitting device (12).