Patent ID: 8035997

Claim:
Circuitry for operating a circuit arrangement for converting a DC voltage to a rectified voltage, the circuitry comprising: an oscillating circuit comprising a capacitor and an inductor, the capacitor and the inductor being electrically coupled in parallel, the oscillating circuit for transferring energy between the capacitor and the inductor; an acquiring circuit to acquire period and phase information of an oscillation, the acquiring circuit comprising a first input electrically coupled to a first connection and a second input electrically coupled to a second connection, the first connection and the second connection for electrically coupling to the oscillating circuit; a control circuit comprising a first input electrically coupled to an output of the acquiring circuit, the control circuit further comprising a second input electrically coupled to a third connection for supply of a voltage that is based on the rectified voltage; and a switch comprising a controlled segment, the controlled segment for electrically coupling a fourth connection to a reference potential connection, the switch further comprising a control connection that is electrically coupled to an output of the control circuit to excite an oscillation in the oscillating circuit via the DC voltage.