Re: Why this UPS is using 1200V IGBTs ?
maybe they have lower on-resistance and generate less heat.
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Why this UPS is using 1200V IGBTs ?
Hello everybody.
I have opened a UPS for repair today and i was surprised to see 40A 1200V IGBTs in a bridge configuration along with 2 40A 600V IGBTs. and a 75A 1200V ultra fast diode.
The UPS has an input and output of 240 V ac .
And using 12 Vdc 9Ah batterie totaling around 16 or 20 battery.
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There is a thread on this particular PSU here
https://www.badcaps.net/forum/showthread.php?t... -
Hello Community,
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Here are my questions.
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