I'd put the isolation transformer on the device you're testing. Then
everything can be ground referenced without generating smoke.

Harold

> Hi,
> I'm working on a project which has a transformerless mains powered
> supply. I want to debug it with the ICD-2. I don't have an opto-isolated
> USB hub but I do have an isolation transformer. Would it would ok if I
> put the isolation transformer on my labtop (which the ICD-2 is connected
> to via. USB) and power the circuit I'm working on with mains or
> alternately use the isolation transformer on the circuit I am working on
> and plug the laptop in directly.
> Thanks,
> Jim
>
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