Re: [CAD_CAM_EDM_DRO] Another EDM Approach

Hi,

> I had wondered whether it would be possible to pick up enough current for
> sensing by wrapping a few turns of wire around the power wire to the
> electrode and limiting the voltage on this by using a fast zener diode or
> something.

What about a hall-effect sensor ? At the currents involved it would be
probably bery effective and best of all, completely isolated from the
current path ! Allegro has some nice linear parts.

Best regards,
Alexandre Guimaraes
alexg@...