| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion device capable of stably supplying power to a load at the time of fault of a voltage-dividing resistor.SOLUTION: In an N-phase (N is a natural number) power conversion device 2, each of high-side switches MH is provided for each phase and is provided between an output terminal of the corresponding phase and an upper-side power-supply line LP. Each of low-side switches ML is provided for each phase and is provided between an output terminal of the corresponding phase and a lower-side power-supply line LN. A plurality of voltage-dividing circuits 20a and 20b generate detection voltages Vd1 and Vd2 respectively by dividing an output voltage occurring at an output terminal of the common phase. A controller 12 generates a control command value for specifying on-times of the high-side switches MH and the low-side switches ML according to a state of a load, and compensates the control command value according to the plurality of detection voltages Vd1 and Vd2 from the plurality of voltage-dividing circuits 20a and 20b. |
