Rectifier circuit and power supply using same

A rectifier circuit comprising:

• a first MOSFET;
• a second MOSFET;
• a first control circuit;
• and
• a second control circuit,
• wherein the second MOSFET falls in a non-rectification time period when the first MOSFET falls in a rectification time period, and the first MOSFET falls in a non-rectification time period when the second MOSFET falls in a rectification time period,
• during at least a part of a time period within which a voltage between a drain and a source of the second MOSFET is inputted as a first input voltage to the first control circuit, and a negative voltage is applied between a drain and a source of the first MOSFET, the first control circuit outputs a voltage generated based on the first input voltage, as a first output voltage, between a gate and the source of the first MOSFET,
• during at least a part of a time period within which a voltage between the drain and the source of the first MOSFET is inputted as a second input voltage to the second control circuit, and a negative voltage is applied between the drain and the source of the second MOSFET,
• the second control circuit outputs a voltage generated based on the second input voltage, as a second output voltage, between a gate and the source of the second MOSFET,
• the first control circuit clamps the first output voltage at a predetermined first threshold voltage when the first input voltage is a voltage equal to or larger than the first threshold voltage, and
• the second control circuit clamps the second output voltage at a predetermined second threshold voltage when the second input voltage is a voltage equal to or larger than the second threshold voltage.