Patent ID: 11881788
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. The DC/DC converter according to claim 7, wherein
the control circuit sets, as a first phase shift amount, a phase shift amount of an on/off drive signal of a first diagonal element with respect to an on/off drive signal of a first reference element, the first reference element is the switching element on one of the positive electrode side and the negative electrode side of the first bridge circuit, and the first diagonal element is the switching element on the other of the positive electrode side and the negative electrode side of the second bridge circuit,
the control circuit sets, as a second phase shill amount, a phase shift amount of an on/off drive signal of a second diagonal element that is the switching element on the one of the positive electrode side and the negative electrode side of the fourth bridge circuit with respect to an on/off drive signal of the first reference element, and
in the first power transmission,
in a range in which the first power transmission amount is smaller than the first reference value, the control circuit decreases the first phase shift amount and the second phase shift amount from a maximum value when the first power transmission amount is zero, in accordance with increase of the first power transmission amount, and
in a range in which the first power transmission amount is equal to or greater than the first reference value, the control circuit decreases the first phase shift amount and increases the second phase shill amount from the first phase shift amount and the second phase shift amount when the first power transmission amount is the first reference value, in accordance with increase of the first power transmission amount.