Driver circuit for switching device
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United States of America Patent
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Aug 13, 2013
Grant Date -
Sep 27, 2007
app pub date -
Jan 25, 2007
filing date -
Mar 23, 2006
priority date (Note) -
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Abstract
A driver circuit that lowers the dependence of the loss in the wide gap semiconductor device upon the temperature is provided. A gate driver circuit for voltage driven power semiconductor switching device includes a power semiconductor switching device, a driver circuit for supplying a drive signal to a gate terminal of the switching device with reference to an emitter control terminal or a source control terminal of the switching device, and a unit for detecting a temperature of the switching device. The temperature of the power semiconductor switching device is detected, and a gate drive voltage or a gate drive resistance value is changed based on the detected temperature.
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