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̸IGBTӦеıʩ

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 ̸IGBTӦеıʩ
1缫뷢伫Ĺѹ
1ֱѹԭǰһ뷢쳣İ취ѡȡIGBTʱнڼһѹʱֶIGBT֤IGBTİȫ
2ӿѹıΪ·зֲеĴ֮IGBTĿٶȽϸIGBTضʱ֮ӵķָָʱͻܴӿѹLdi/dtVCESPIGBTļ缫-伫ѹֵVCESͿIGBTʱԲȡ·ѡȡIGBTʱԣڵ·ʱIGBT·Rgʹdi/dtݿIGBTװԼСֲУװ屣··Ƶӿѹ
2IGBTդı
IGBTդ-伫ѹVGEıֵ֤Ϊ±20Vֵ֤ĵѹܻIGBTIGBT·դѹ޷·IGBTդ뷢伫俪·դ뼯缫ͷ伫֮ݵĴʹդλ缫-伫еʱ缫ͷ伫䴦ڸѹ״̬ʱܻʹIGBTΪֹӦIGBTդ뷢伫䲢һֻʮkΩĵ˵Ӧդ뷢伫
1ҪֽӴIGBTǰӴʱҪ֤ʱľȫŵ
2ںҵʱΪ˷ֹIGBTһҪɿؽӵ
3缫
1õбõIGBTIGBT缫ĵйʱִлϿIGBTﵽIGBTĿ
2IGBTVCE(sat)бVCE(sat)=IcRCE(sat)IcʱVCE(sat)Ҳ֮դѹΪߵƽVCEΪʱйʱߵƽźִлϿIGBTIGBT
3⸺صбض·صӴʱҲʹǰIGBTļ缫IGBTɸش(IGBTĺһ·)⵽쳣ִлжIGBT
IGBTŷëӭҼע˾˽
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