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Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
RateReducer wrote ...
The second GDT is driven by mosfets which are capable of handle 60V 20A. The supply of the half bridge is 70V so every mosfet sees 35V.
No, each MOSFET actually sees 70V. You have two FETs in series across a 70V supply. The voltages across the two FETs must add up to 70V at all times. Normally one is on and the other is off, the "on" device has practically 0 volts across it, so you do the math.
Registered Member #4603
Joined: Wed Apr 25 2012, 07:33PM
Location: Austria
Posts: 159
I got the X-Ray power supply from a friend. You could get some microwave HV capacitors. They have nearly the same oil inside. So you could get a small amount of HV oil for cheap
Haha thats kinda true Steve xD Did never think about that... Really strange. My mosfets are 50V rated and the do their job quite well ^^
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3kW IGBT Halfbridge Inverter *UPDATE 5kW*
