On 5/17/07, Dwayne Reid <dwayner@planet.eon.net> wrote:
> Yikes!
>
> I'm glad you haven't been hurt by this.
>
> Yeas - its obvious.
>
> Here's the deal.  Your computer and probably much
> of your mains-powered test equipment is grounded
> to the AC mains ground.  When you connect the
> negative rail of your HV supply to ground, you
> are essentially shorting out either D7 or D8.

Hello

With nothing but the diodes and capacitors in the schematic I still
have trouble (can't connect the sides or smoke appears). No computer
connected, nothing else.

Am I still missing something?

You have alerted me to the need to isolate the computer ground though
when in the future the circuit connects to a PC. Looks like I'll need
to isolate everything anyway.

Thanks.
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