Peter Peres wrote:
>Dan, your scheme will work to determine some components, but it will not
>do much curve tracing, and will not be able to fire some thyristors and
>triacs. Using software PWM and two coil boosters on the 'E' and 'C' pins
>will get you nearer but the metering scheme will become more complex and
>would require an AD. A two channel SMPSU in boost config. controlled by
>the PIC (which would have AD) would be a more appropriate idea imho. It's
>a good idea for low cost testers though.
>

Yeah, as indicated this wasn't really meant to be a complete curve
tracer. But part of the idea was to be able to identify which pin is
which without having a manual handy - with your scheme you already have
to know which is E and C. I also realized with only 5v available, you
cannot handle hi-V zeners or hi-I SCRs.

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