Quote:
Originally Posted by Jared
Can you try the test again with a 12 volt FRC legal battery? The power distribution board used in previous years had power supplies that didn't play well when fed with another power supply and could be causing your problem.
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That would definitely be an issue with a switching power supply, but the Keithleys with which I am familiar are linear supplies.
It's certainly possible that you have a faulty VRM. Out of several thousand in the hands of robotics teams at the moment, I would not be surprised if one doesn't work properly.