This is also the technique that was used to service AC/DC vacuum tube radios and TVs 50 years ago... Harold > I agree with the other guys... put the iso xfmr on the project supply. > That's what I do - works for me. > > I have a transformerless mains powered device plugged into my iso > transformer... I have my USB ICD2 on my destop connected to the isolated > device and have not had any problems. All the magic smoke is still inside! > > -- Mark > >> -----Original Message----- >> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf >> Of jim ruxton >> Sent: Thursday, May 17, 2007 12:08 PM >> To: piclist@mit.edu >> Subject: [PIC]- Using isolation transformer with ICD-2 >> >> >> 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 >> >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> >> > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist