On Mon, 17 Oct 2005 22:48:36 -0500, Jon Elson
wrote:

Ig is building a chopper to get squarewave from it.

Yes, I know he is TRYING to do so. Having built a number of power
switching circuits (inverters, PWM servo amps, etc.) I know how
DIFFICULT that is going to be, and that he massively underestimates
the difficulty of the task.

Perhaps I should have said that he's typing a lot about building a
chopper.