Mosfet for 10KV @ 10A (500KHz)rating for the inverter application

Hello Everybody!!!!!!!!

I am working on a concept that requires a high voltage(>5KV) inverter application, the load current will be (5-10A) and the switching frequency will be 500 to 1000 KHz i need suggestions on the availability and their pros and corns.I must be thankful if any body has worked on it previously and can share some info about it.

michaelkellett over 10 years ago

A 50kW inverter is a big design task - and a 50kW supply at 5KV is a scary kind of thing. What are you planning to do with it ?

MK
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Robert Peter Oakes over 10 years ago in reply to michaelkellett

Why.... Take over the WORLD of course... Muhhhaaaaahaaaaa
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Former Member over 10 years ago in reply to michaelkellett

thank for ur response the application is ac-dc converter with high frequency inverter in between
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michaelkellett over 10 years ago in reply to Former Member

That doesn't tell me anything - how about posting a block diagram showing the power source (voltages, currents, phases, frequencies) and the stages of the converter and the output. What is the load ?

MK
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Former Member over 10 years ago in reply to michaelkellett

welding
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michaelkellett over 10 years ago in reply to Former Member

What sort of welding needs 10kV ?

(seems a bit low for electron beam welding)

MK
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Former Member over 10 years ago in reply to michaelkellett

special welding is it possible to have a mostfet @5 to 10kv @5A
if current is problem we can use parallel config i think
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Robert Peter Oakes over 10 years ago in reply to Former Member

This is still very experemental and a very obvious google shows this
http://lmgtfy.com/?q=mosfet+10kv+5A
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michaelkellett over 10 years ago in reply to Former Member

I'm sorry but your questions don't really make much sense. If you are contemplating building a 50kW inverter you need to be way beyond the level of asking simple questions about devices on forums. When you've looked at Peter's link just take a look at some 50KW inverters on the web (there are lots) and you'll see that typically they are about the size of a (big) fridge freezer and weight about 500kG or more - and these are low voltage (500V DC, 240V AC) machines.

MK
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Former Member over 10 years ago in reply to michaelkellett

if you are aware of inverter type welding machines then i guess you can think that this makes sense all the time is there a way that i can have a high voltage(5KV) and low current(5A) device that can work @ >500KHz
currently the welding inverters are using iGBT's 1 to 2KV @ 50 to 100A. the limitation is always about the switching frequency,which i would like to eliminate
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