Resonant DC converter and method for operating a resonant DC converter

A DC converter, comprising:

• a supply input for a supply voltage and having an input side;
• a DC voltage output for providing a DC voltage and having a positive pole and a negative pole;
• a pulse generator having an input side connected to said supply input and having outputs;
• a resonant converter having an output side and an input side, said input side of said resonant converter connected to said outputs of said pulse generator and on said output side said resonant converter connected to said DC voltage output;
• an output capacitor connected between said positive pole of said DC voltage output and said negative pole of said DC voltage output;
• a controller, wherein said pulse generator is configured to generate pulses at a pulse frequency that can be variably specified by said controller and to output them to said resonant converter;
• said resonant converter having a plurality N of resonant tanks with a resonant frequency;
• and
• said controller is configured to specify a first pulse frequency to said pulse generator during an initialization time period of the DC converter, and to specify a second pulse frequency different from the first pulse frequency to said pulse generator during a continuous operation time period of the DC converter that follows the initialization time period, wherein the second pulse frequency corresponds to N times the resonant frequency.