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Re: Microwave Oven Inverter PS, revealed

Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Jim,

Very cool! The control hookups are trivial. The current is lightly low for a SISG but a little loading resistor on the feedback CT would probably fix that ;-)

Inverters can be bought new for about $80 or salvaged free if you can find a working oven with one that is being thrown out.

The real question is how would the control react to a firery Tesla coil load?? The current would jump wildly!! The little chip "should" see that as an acing tube or something and shutdown. But there is not a lot of feedback there so the circuit might be easy to trick >:))



At 11:25 AM 8/31/2006, you wrote:
I ran across this interesting web site from someone looking to use the 4kV,300mA supply in a MW to run an amp. Schematics, lots of reverse engineering, etc.


Hmm.. 3 in series, if you could solve the voltage isolation issues, gives you 12kV @ 300mA.. 4kW is a healthy DC supply for a TC.

Looking at the schematic, it looks like it would be pretty easy to do it with some fairly standard line isolation transformers, (although, a 1kVA isolation transformer might be a bit hefty. Maybe sinking it in oil might provide enough primary/secondary isolation for T701?