A power converter has a pair of series connected switches defining a phase leg, a pair of gate driver circuits that respectively provide power to gates of the series connected switches, a positive rail electrically connected with the phase leg, and a clamping circuit including a clamping switch. The clamping circuit, responsive to one of the gate driver circuits being de-energized, activates the clamping switch with energy from the positive rail to clamp a gate of one of the series connected switches associated with the one of the gate driver circuits to another terminal of the one of the series connected switches.
AUTOMOTIVE POWER CONVERTER WITH RAIL-POWERED CLAMPING CIRCUITRY
2021-02-25
Patent
Elektronische Ressource
Englisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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