Driving apparatus
AssigneeFuji Electric Co., Ltd.
InventorsRyoga Kiguchi, Hiromu Takubo
Life of this patent
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Abstract
Provided is a driving apparatus that drives a switching device, the driving apparatus including a reference potential line, a first switching control unit configured to switch whether to connect a control terminal of the switching device to the reference potential line, a first resistor element arranged in series to the first switching control unit in a path from the control terminal of the switching device to the reference potential line, a first capacitor provided in parallel with the first resistor element in the path from the control terminal of the switching device to the reference potential line, and a discharge control unit configured to control whether to discharge the first capacitor.
Claims18
A driving apparatus that drives a switching device, the driving apparatus comprising:
- a reference potential line;
- a first switching control unit configured to switch whether to connect a control terminal of the switching device to the reference potential line;
- a first resistor element arranged in series to the first switching control unit in a path from the control terminal of the switching device to the reference potential line;
- a first capacitor provided in parallel with the first resistor element in the path from the control terminal of the switching device to the reference potential line;
- a discharge control unit configured to control whether to discharge the first capacitor;
- and
- a first diode having a cathode connected to the control terminal of the switching device and an anode connected to the discharge control unit, wherein
- the discharge control unit includes a first transistor arranged between the anode of the first diode and the reference potential line, and
- the first capacitor is in a series current path between the anode of the first diode and the first switching control unit.
Dependencies are inferred from the claim text.