Since you're not debugging the power supply itself, why not just power the 
circuit from a 6V (or whatever) transformer after the voltage dropping 
element ? You get isolation, more bench space and the ouch factor is 
removed.

Steve.


On 17 May 2007 at 13:08, jim ruxton wrote:

> 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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