CPC H02M 1/0054 (2021.05) [H02M 1/08 (2013.01); H02M 7/539 (2013.01); H02P 27/06 (2013.01)] | 6 Claims |
1. A power conversion device, comprising:
a first switching element through which a first applied current flows when the first switching element is in an ON state;
a second switching element through which a second applied current flows when the second switching element is in an ON state, the second switching element being connected in parallel to the first switching element; and
a driver circuit that is configured to drive the two switching elements, wherein
the first switching element includes:
a first control terminal;
a first parasitic inductance through which the first applied current flows; and
a first detection terminal used to detect a first counter-electromotive force, the first counter-electromotive force being produced by a first inductance component that includes the first parasitic inductance,
the second switching element includes:
a second control terminal;
a second parasitic inductance through which the second applied current flows; and
a second detection terminal used to detect a second counter-electromotive force, the second counter-electromotive force being produced by a second inductance component that includes the second parasitic inductance,
the driver circuit includes:
an external input terminal that is configured to receive an external command voltage;
an addition circuit that is configured to output an added voltage; and
an addition output terminal to which the added voltage is output,
the power conversion device further comprises:
a control line that connects the addition output terminal to the two control terminals; and
a common connection line that connects the two detection terminals to each other and connects the two detection terminals to the addition circuit, wherein a combined electromotive force of the two counter-electromotive forces is transmitted via the common connection line, and
the addition circuit is configured to receive the combined electromotive force and the external command voltage, and output the added voltage by adding the combined electromotive force to the external command voltage.
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