Overcurrent protection circuit of IGBT power module

The invention provides an overcurrent protection circuit of an IGBT (Insulated Gate Bipolar Translator) power module. The overcurrent protection circuit comprises a reference voltage generation module, a sampling module, a comparator module and a hardware blocking module, the input end of the refere...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HUANG JIBO, JIANG GENGWEI, TIAN DONGLIN, OU XINMU, WANG ZHIYANG, LI FENGYUAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides an overcurrent protection circuit of an IGBT (Insulated Gate Bipolar Translator) power module. The overcurrent protection circuit comprises a reference voltage generation module, a sampling module, a comparator module and a hardware blocking module, the input end of the reference voltage generation module is electrically connected with a processor of the IGBT power module, and the output end of the reference voltage generation module is electrically connected with the first input end of the comparator module; the input end of the sampling module is electrically connected with the IGBT power module, the output end of the sampling module is electrically connected with the second input end of the comparator module, the output end of the comparator module is electrically connected with the input end of the hardware blocking module, and the output end of the hardware blocking module is electrically connected with the IGBT power module and a processor of the IGBT power module. The circuit can