System and method for improving power conversion efficiency

A power conversion system, comprising:

• a control module configured to provide switching control signals and
• a power conversion device, comprising:
• a first port;
• a second port;
• and
• at least one switching unit electrically coupled between the first port and the second port, the switching unit comprising a switching device, the switching device comprises a channel and a body diode integrated with the channel, the switching device comprising a first terminal configured to receive switching control signals provided from the control module, a second terminal and a third terminal configured to provide current flow paths, wherein:
• the channel of the switching device is configured to provide a positive direction current flow path to allow a positive direction current to flow from the second terminal to the third terminal in response to a first turn-on switching control signal supplied to the first terminal;
• the body diode of the switching device is configured to provide a first negative direction current flow path to allow a negative direction current to flow from the third terminal to the second terminal in response to a first turn-off switching control signal supplied to the first terminal;
• and
• the channel of the switching device is configured to provide a second negative direction current flow path to allow the negative direction current to flow from the third terminal to the second terminal in response to a second turn-on switching control signal supplied to the first terminal.