DC/DC converter and method for controlling output voltage thereof

A method for controlling an output voltage of a DC/DC converter comprising an inverter circuit, a transformer, a first rectifier circuit, and a second rectifier circuit, wherein an input terminal of the inverter circuit is used as an input terminal of the DC/DC converter and connected to a direct current power supply;

• the transformer comprises a first primary-side winding, a first secondary-side winding, and a second secondary-side winding, wherein one terminal of the first primary-side winding is connected to a first output terminal of the inverter circuit, the other terminal of the first primary-side winding is connected to a second output terminal of the inverter circuit, terminals of the first secondary-side winding are connected to input terminals of the first rectifier circuit, and terminals of the second secondary-side winding are connected to input terminals of the second rectifier circuit,
• the method comprising:
• controlling, in a first sub-cycle of a first working cycle, an output terminal of the first rectifier circuit, an output terminal of the second rectifier circuit, and an output terminal of the DC/DC converter to be in a first connection relationship, and
• controlling, in a second sub-cycle of the first working cycle, the output terminal of the first rectifier circuit, the output terminal of the second rectifier circuit, and the output terminal of the DC/DC converter to be in a second connection relationship.