Power converter having multiple switching legs

A power converter comprising:

• a common switching leg that is connected to one end of a primary side of a first transformer and is connected to one end of a second transformer;
• a first switching leg that is connected to another end of the primary side of the first transformer;
• a second switching leg that is connected to another end of a primary side of the second transformer;
• a first secondary circuit that is connected to a secondary side of the first transformer;
• and
• a second secondary circuit that is connected to a secondary side of the second transformer, wherein
• the common switching leg, the first switching leg, and the second switching leg are electrically connected, in parallel, to an input terminal,
• the first secondary circuit and the second secondary circuit are electrically connected, in parallel, to an output terminal, and
• when open circuit failure occurs in the common switching leg, a phase difference between a switching control signal of the first switching leg and a switching control signal of the second switching leg is controlled based on currents flowing in the first secondary circuit and the second secondary circuit.

A power converter comprising:

• a common switching leg that is connected to one end of a primary side of a first transformer and is connected to one end of a second transformer;
• a first switching leg that is connected to another end of the primary side of the first transformer;
• a second switching leg that is connected to another end of a primary side of the second transformer;
• a first secondary circuit that is connected to a secondary side of the first transformer;
• and
• a second secondary circuit that is connected to a secondary side of the second transformer, wherein
• the common switching leg, the first switching leg, and the second switching leg are electrically connected, in parallel, to an input terminal,
• the first secondary circuit and the second secondary circuit are electrically connected, in parallel, to an output terminal, and
• when open circuit failure occurs in the first switching leg, a phase difference T2 between a switching control signal of the common switching leg and a switching control signal of the second switching leg is controlled based on a current flowing in the second secondary circuit.

A power converter comprising:

• a common switching leg that is connected to one end of a primary side of a first transformer and is connected to one end of a second transformer;
• a first switching leg that is connected to another end of the primary side of the first transformer;
• a second switching leg that is connected to another end of a primary side of the second transformer;
• a first secondary circuit that is connected to a secondary side of the first transformer;
• and
• a second secondary circuit that is connected to a secondary side of the second transformer, wherein
• the common switching leg, the first switching leg, and the second switching leg are electrically connected, in parallel, to an input terminal,
• the first secondary circuit and the second secondary circuit are electrically connected, in parallel, to an output terminal, and
• when open circuit failure occurs in the second switching leg, a phase difference T1 between a switching control signal of the common switching leg and a switching control signal of the first switching leg is controlled based on a current flowing in the first secondary circuit.

A power converter comprising:

• a common switching leg that is connected to one end of a primary side of a first transformer and is connected to one end of a second transformer;
• a first switching leg that is connected to another end of the primary side of the first transformer;
• a second switching leg that is connected to another end of a primary side of the second transformer;
• a first secondary circuit that is connected to a secondary side of the first transformer;
• and
• a second secondary circuit that is connected to a secondary side of the second transformer, wherein
• the common switching leg, the first switching lea, and the second switching leg are electrically connected, in parallel, to an input terminal,
• the first secondary circuit and the second secondary circuit are electrically connected, in parallel, to an output terminal, and
• when a phase difference between a switching control signal of the common switching leg and a switching control signal of the first switching leg is set to T1, and a phase difference between a switching control signal of the common switching leg and a switching control signal of the second switching leg is set to T2, control is performed such that any one of the first secondary circuit and the second secondary circuit is stopped and any one of the phase difference T1 and the phase difference T2 is zero in a case where a current flowing in the input terminal is smaller than a predetermined current value.