Asymmetric power converter

An asymmetric power converter, comprising:

• a primary-side rectifying/filtering circuit, configured to receive an input voltage, and rectify and filter the input voltage into a first voltage,
• a power factor correction circuit, configured to receive the first voltage, and convert the first voltage into a power voltage,
• an asymmetric conversion circuit, configured to receive the power voltage, and convert the power voltage into an output voltage to supply power to a load, and an output current being drawn by the load,
• a feedback control circuit, coupled to the asymmetric conversion circuit, and configured to generate a feedback control signal according to a load power demand provided by the load, wherein the load power demand comprises information of the output voltage and information of the output current,
• wherein the feedback control circuit controls the asymmetric conversion circuit to operate in a full-bridge resonant mode, a half-bridge resonant mode, or a hybrid half-bridge resonant mode according to the feedback control signal.