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DOUBLE SIDE IGBT PHASE LEG ARCHITECTURE AND CLOCKING METHOD FOR REDUCED TURN ON LOSS
DOUBLE SIDE IGBT PHASE LEG ARCHITECTURE AND CLOCKING METHOD FOR REDUCED TURN ON LOSS
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机译:减小导通损耗的双侧IGBT相腿结构和锁定方法
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摘要
A double-side IGBT (DIGBT) phase leg architecture that uses the DIGBT (1510, 1520) as a substitute for a free wheeling diode to achieve reduced turn-on loss and reduced reverse recovery peak current during turn-on is described and characterized. Approximately a 50% reduction in reverse recovery peak current and an 80% reduction in recovery charge are achieved. In addition, low power dissipation (~1A current level) protection circuitry (1501) is described that can be incorporated into the DIGBT phase leg architecture (1500) to allow the flow of reverse current even if the gate driver circuit is disabled so that conventional high current free wheeling diodes are not required to provide protection.
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