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Circuit and method for improving short-circuit capability of IGBTs
Circuit and method for improving short-circuit capability of IGBTs
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机译:用于提高IGBT的短路能力的电路和方法
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摘要
A simple, off-chip circuit and method for endowing high efficiency IGBTs with short-circuit capability, that is essentially transparent to the user. The invention involves adding an external common emitter resistor to reduce the effective gain of an IGBT under short circuit. Under normal operating conditions, the voltage across the resistor is small, such that the modifying effect on the normal operating gate- emitter voltage is almost negligible.
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