Power Converter And Power Conversion Method

A power converter circuit comprising:

• a transformer comprising a primary winding and a secondary winding;
• a first electronic switch connected in series with the primary winding;
• a rectifier circuit connected between the secondary winding and an output, wherein the rectifier circuit comprises a second electronic switch;
• a feedback circuit coupled to the output and configured to generate a feedback signal based on an output signal available at the output;
• and
• a first control circuit configured to operate the power converter circuit in one of a first operation mode and a second operation mode based on the feedback signal and a signal level of the output signal.