rinthesun
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This post concerns the 13V, Vpp supply. It is not clear that the designs used here will shut down if the current exceeds 100ma which probably is already greater than what the USB can supply. I note that Andy123 uses a 78L08 to set the voltage and provide over current limit of 100ma.
I found a solution in the MAX761or MAX 762 which have a built in over-current limit of 150ma and can be set to 13V. There is also the MAX754 which has an internal over current limit of 120ma and a fixed 12V output. If the ICD2 clone will mainly be used to work with flash devices then 10V for Vpp is sufficient at a few ma; however, if you wish to program units other than flash then 13V is required at 50ma. Another solution for flash devices would be the MAX662, 12V, 30ma device which uses a charge pump and ,therefore, no inductors.
I found a solution in the MAX761or MAX 762 which have a built in over-current limit of 150ma and can be set to 13V. There is also the MAX754 which has an internal over current limit of 120ma and a fixed 12V output. If the ICD2 clone will mainly be used to work with flash devices then 10V for Vpp is sufficient at a few ma; however, if you wish to program units other than flash then 13V is required at 50ma. Another solution for flash devices would be the MAX662, 12V, 30ma device which uses a charge pump and ,therefore, no inductors.