Re: SS Relays - Revisited

Thanks guys, I'm pretty sure i understand this now. One last
question, Would an automotive relay be acceptable and safe to use in
this situation? I've seen this mentioned (actually I think someone
suggested it in reply to a previous question i posted). The reason I
even went with the SSR was that it was my understanding that an SSR
is an isolated relay... I don't really know if that even matters, but
it sounded good at the time. If the automotive relay is not an
acceptible device, then I think I'll just try to order the relay
board from Bob and Jim.
Thanks,
Chris

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Moore" <pminmo@c...> wrote:
> Looking at the circuit, I would agree with caudlet, the input is
> high enough impedence that the leakage of the SSR is a problem. The
> capacitance of the ssr output caused the trigger to fire when you
> hooked it back up. I'd use a power FET but would have to know more
> details of both the breakout board and torch. Easiest solution is
to
> use a small mechanical relay.
>
> Phil