Electricity: electrical systems and devices – Safety and protection of systems and devices – Voltage regulator protective circuits
Patent
1997-11-17
1999-04-27
Medley, Sally C.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Voltage regulator protective circuits
323276, H02H 900
Patent
active
058985549
ABSTRACT:
A driver circuit for a semiconductor power switch. The driver circuit supplies a high voltage pulse to the gate of an IGBT. The driver circuit also monitors the voltage on the collector of the IGBT with respect to the emitter. If the voltage at the collector of the IGBT does not drop when the IQBT is turned on, the IGBT driver circuit detects a short circuit and triggers a linear integrator within the driver circuit. The linear integrator gently ramps down the voltage on the gate of the IGBT.
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Schnetzka Harold R.
Tollinger Donald L.
Wills Frank E.
Medley Sally C.
York International Corporation
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