Patent ID: 7969754

Claim:
A resonance converter for providing an output voltage or an output current for a load network based on an energy supplied by an energy source, the resonance converter comprising: a resonant transformer arrangement having an input for receiving an input-side excitation, an output for providing the output voltage or the output current for the load network, and an auxiliary output for transformationally providing a signal which is essentially proportional to the output voltage provided by the resonant transformer arrangement, or to the output current provided by the resonant transformer arrangement; a switch unit designed to generate the input-side excitation of the resonant transformer arrangement from the energy of the energy source, the switch unit comprising a switch; and a control circuit designed to set or to regulate an operating frequency, with which the switch unit is switched, in dependence on a phase shift between a current flowing through the switch or a current flowing from the switch unit to the input of the resonant transformer arrangement, on the one hand, and on the signal present at the auxiliary output, on the other hand.