| 摘要 |
<p>A power supply device includes: a magnetic-coupling-type multi-phase converter having first and second chopper circuits that respectively adjust respective currents (I1, I2) flowing in first and second reactors magnetically coupled to each other, and performing voltage conversion between a DC power supply and a load; and a control circuit. The control circuit includes a determination unit (360) and a current control unit (330). The determination unit (360) determines whether the temperature of the power supply is lower than a reference temperature. In the case where the power supply temperature is lower than the reference temperature, the current control unit (330) uses a value determined by adding an offset amount to a detected value of the reactor current (I1) to set a duty command value (Id1) for the first chopper circuit and uses a detected value of the reactor current (12) to set a duty command value (Id2) for the second chopper circuit.</p> |
