Re: high-performance EDM power supply

It seems to me that a chunky DC supply a, chunky mosfet and a decent
pulse generator to drive the gate would be a good start for
experimentation. Some lab pulse generators have frequency and duty
cycle adjustment, and a simple PWM circuit is quite easy to make
anyway. I suppose it all depends how smart you want it to be.

Oh, here is a small unit designed as an add on for mills and drills.
Looks fairly basic but it shows some nice samples.

http://www.geocities.com/SiliconValley/Pines/6435/eng001.htm

Cheers,

Graham

> I've sketched out a few things, but haven't had time to get into it.
> I think it is getting into voltage ranges Mariss may be scared to
> tread, for liability reasons. Also, he is in the business of

selling

> tens of thousands of drives a month, and this is not likely to
> come near that volume.
>
> I was planning a simple on/off pulser, but some descriptions of
> the arc starting circuits of a commercial 1970's vintage EDM
> made it clear that better circuits could be made without great
> additional cost.
>
> Someday....
>
> Jon