Drive circuit for switch
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United States of America
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Jan 25, 2022
Grant Date -
Jun 10, 2021
app pub date -
Feb 22, 2021
filing date -
Feb 22, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A switch drive circuit is provided with a surge detecting unit that detects a surge voltage produced in response to a change in a switching state of the switch; an adjusting unit that adjusts, based on the surge voltage detected by the surge detecting unit, a switching speed of the switch when changing the switching state of the switch; and a mask processing unit that prevents a voltage, detected by the surge voltage detecting unit in a period other than a period where the surge voltage is assumed to be produced in response to a change in the switching state of the switch, from being used by the adjusting unit for adjusting the switching speed.
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