Rectifier circuit, power source device, and method for driving rectifier circuit

A method for driving a rectifier circuit,

• the rectifier circuit including:
• a first terminal;
• and a second terminal,
• in the rectifier circuit,
• with reference to the first terminal, a positive voltage to be applied to the second terminal being a forward voltage,
• with reference to the second terminal, a positive voltage to be applied to the first terminal being a reverse voltage,
• if the forward voltage is continuously applied, a forward rectifier circuit current flowing from the second terminal to the first terminal, and
• if the reverse voltage is continuously applied, the forward rectifier circuit current being blocked,
• the rectifier circuit including:
• a first rectifier connected to the first terminal and the second terminal;
• a transformer including a primary winding and a secondary winding;
• a second rectifier connected in parallel to the first rectifier through the secondary winding;
• a switch element connected to the primary winding;
• and
• a power source connected to the primary winding,
• the method comprising:
• applying the forward voltage, so that the forward rectifier circuit current flows;
• turning the switch element ON after the applying the forward voltage, so that a primary winding current flows from the power source to the primary winding;
• turning the switch element OFF after the turning the switch element ON, so that a second rectifier current flows from the secondary winding to the second rectifier, and that a first reverse voltage is applied, the first reverse voltage being the reverse voltage applied instantaneously;
• and
• applying a second reverse voltage after the turning the switch element OFF, the second reverse voltage being the reverse voltage applied continuously.