Patent ID: 7576445

Claim:
A power supply arrangement with an input terminal for receiving an input signal with an actual input signal level and an output terminal for providing an output signal with a predetermined output signal level, comprising: a charge storage, which is implemented to store electrical energy, and to provide a supplementary supply signal with a supplementary supply signal level; a charger, which is implemented to receive the input signal, wherein the input signal assumes a first input signal level and a second input signal level successively in time, wherein the second input signal level is higher in amount than the first input signal level and has the form of pulses overlaying the first input signal level, and which is further implemented to couple the charge storage to the input signal, when the actual input signal level is on a higher level in amount than the supplementary supply signal level, and otherwise to decouple the charge storage from the input signal; a reference signal source, which is implemented to provide a reference signal comprising information about a set input signal level; and a processor, which is formed to provide the output signal with the predetermined output signal level at the output terminal, based on the supplementary supply signal or based on a combination of the supplementary supply signal and the input signal, if the actual input signal level is lower in amount than the set input signal level.