IGBT开启时栅极被下拉

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cross mob
baihaojun-
Level 2
Level 2
10 questions asked 5 replies posted 5 questions asked

IGBT开启时好多波形都会有栅极被下拉的情况,这是为什么蓝色为驱动蓝色为驱动

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1 解答
Rachel_G
Moderator
Moderator
Moderator
50 likes received 250 solutions authored 250 replies posted

您好,

建议测IGBT栅极电压Vge时,电压探头尽量靠近器件管脚,避免引入回路寄生电感,造成测量波形误差。

Best regards,

Rachel

在原帖中查看解决方案

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2 回复数
Rachel_G
Moderator
Moderator
Moderator
50 likes received 250 solutions authored 250 replies posted

Hello  

为了进一步分析原因,请提供完整的电路图和测试条件。主要测下IGBT的电压电流波形Vge,Vce,Ice,谢谢!

Best regards,

Rachel

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Rachel_G
Moderator
Moderator
Moderator
50 likes received 250 solutions authored 250 replies posted

您好,

建议测IGBT栅极电压Vge时,电压探头尽量靠近器件管脚,避免引入回路寄生电感,造成测量波形误差。

Best regards,

Rachel

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