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is that suitable ??

qwertyqwq

Member
hi all.

currently im working on a high speed switching mosfets with under high voltage. But i have question about my project and needed some help.

im switching 4 mosfets with h bridge configuration. The switching frequency is about 50kHz (optocouple with totem poles) and the im looking for a low cost mosfets for bridging.
the loads current will be 3-4 amps and the power supply voltage is full rectified 320Vdc. I have already searched on the internet and readed some datasheets. But i m not sure about the mosfets. Cause of SOA(safe operation area). I have readed lots of document about SOA because of my bad english , i couldnt understand clearly.
Here some of the searched and also added datasheets of them;

IXTU5N50P
IRF740A
PJU5NA50


which one is suitable for me ?? or do you have any suggestion ??
thanks. QWERTY..
 

gary350

Well-Known Member
Try IRFP460
500v
20a
.27 ohms look for low resistance they produce less heat.
280w heat
10v gate
You need a gate resistor.
 

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