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cross mob
Bellawu
Employee
Employee
First solution authored 50 sign-ins 5 replies posted

对比IGBT,SiC MOSFET的开关速度很快,测试波形的振荡很严重,不知道是不是干扰还是真实的振荡,怎么才能排除干扰测试出真实的波形?请详细解答,请推荐英飞凌相关产品或解决方案。

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1 解答
Jingwei
Moderator
Moderator
Moderator
250 sign-ins 10 likes given 100 solutions authored

您好,

影响测试波形的情况有很多。比如,你的栅极信号,是用同轴绝缘电缆引出的吗?比如你的栅极电阻选择,有无增加snubber电路,用了差分探头去测量吗?这里有一些驱动SiC相关的文档供您参考。

https://www.infineon.com/dgdl/Infineon-Silicon-Carbide_MOSFETs_using_EiceDRIVER_Advanced_Gate_Drive_...

https://www.infineon.com/dgdl/Infineon-Guidelines_for_CoolSiC_MOSFET_gate_drive_voltage_window-Appli...

https://www.infineon.com/dgdl/Infineon-GateDriverIC_EiceDRIVER_isolated_gate_driving_solutions_overv...

https://www.infineon.com/dgdl/Infineon-GateDriverIC_EiceDRIVER_isolated_gate_driving_solutions-Appli...

Thanks and BR,

Steven

在原帖中查看解决方案

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1 回复
Jingwei
Moderator
Moderator
Moderator
250 sign-ins 10 likes given 100 solutions authored

您好,

影响测试波形的情况有很多。比如,你的栅极信号,是用同轴绝缘电缆引出的吗?比如你的栅极电阻选择,有无增加snubber电路,用了差分探头去测量吗?这里有一些驱动SiC相关的文档供您参考。

https://www.infineon.com/dgdl/Infineon-Silicon-Carbide_MOSFETs_using_EiceDRIVER_Advanced_Gate_Drive_...

https://www.infineon.com/dgdl/Infineon-Guidelines_for_CoolSiC_MOSFET_gate_drive_voltage_window-Appli...

https://www.infineon.com/dgdl/Infineon-GateDriverIC_EiceDRIVER_isolated_gate_driving_solutions_overv...

https://www.infineon.com/dgdl/Infineon-GateDriverIC_EiceDRIVER_isolated_gate_driving_solutions-Appli...

Thanks and BR,

Steven

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