 Posted: Tue Feb 13, 2007 11:42 pm Post subject: |
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| In general heatsinks are usually at zero potentional, however depending on the circuit design, it may easily be sitting at any potential where it may have direct contact with a collector casing of a transistor or body of a regulator tab.
Your ground reference point is critical---not all heatsinks are always at ground potential. As in example in chopper supply application you have cold & hot ground which will give different readings ---no way you could have 130 volts leakage & not have something short out/blowup etc. Term leakage is usually in mili/micro range. |
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| Posted: Tue Feb 13, 2007 8:19 pm Post subject: |
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| i have 130 volts on an alumminium heat dissipator. Is this normal? | |
| Posted: Tue Jan 30, 2007 1:19 am Post subject: Comag sl55 voltage leak |
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| What is likely to allow a voltage leak on a psu? | |