Inverter and driving method thereof

An inverter comprising:

• a hybrid converter generating a hybrid output voltage conforming to a rectified AC waveform according to one of a forwarding operation of delivering current from a primary side to a secondary side and a backwarding operation of delivering current from the secondary side to the primary side;
• a toggle circuit toggling the hybrid output voltage in units of one period of the hybrid output voltage to generate an AC output;
• and
• an inverter controller selecting one of the forwarding operation and the backwarding operation according to the hybrid output voltage, controlling a current transmission according to the selected operation, and controlling the operation of the toggle circuit,
• wherein the hybrid converter comprises an active clamp forward (ACF) converter and a flyback converter.