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ZhaiL
Employee
Employee
10 sign-ins 10 questions asked 5 questions asked

IGBT管的开关频率能否达到10MHz?如果能达到该用什么驱动芯片驱动呢?求大牛指点!!~?

https://www.zhihu.com/question/41472936/answer/2827098682#comment-10409585929?notificationId=1595795...

那么开关频率高德好处在哪里呢?
10Mhz不是损耗很大,
SiC借温特性好的话就可以用更高频率了是吧?

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Rachel_Gao
Moderator
Moderator
Moderator
50 solutions authored First like given 50 replies posted

Hi ZhaiL

提高开关频率可以降低电感量和电容值,同时对系统体积进行优化,提高了功率密度,减小了输出纹波,提高电源质量。

SiC具有更高的工作温度,可以在更高的频率下开关(20kHz-100kHz),从而允许减小任何电感和变压器的尺寸和成本,提高能效。

Best regards,

Rachel

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Rachel_Gao
Moderator
Moderator
Moderator
50 solutions authored First like given 50 replies posted

Hi ZhaiL

提高开关频率可以降低电感量和电容值,同时对系统体积进行优化,提高了功率密度,减小了输出纹波,提高电源质量。

SiC具有更高的工作温度,可以在更高的频率下开关(20kHz-100kHz),从而允许减小任何电感和变压器的尺寸和成本,提高能效。

Best regards,

Rachel

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