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本文设计了一种实用的IGBT过流保护定时自恢复电路。该电路结构简单、成本低且性能可靠,具有手动恢复和定时自动恢复两种功能,而且自恢复时间大范围可调。可以广泛地应用于功率变流器功率开关ICBT的保护电路中。
This paper designed a practical timing overcurrent protection IGBT self-recovery circuit. The circuit structure is simple, low cost and reliable performance, with manual recovery and timing automatic recovery of two functions, but also a wide range of self-recovery time adjustable. Can be widely used in power converter ICBT power switch protection circuit.