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    unregulated power supply - unstable output or no output at all

    This might be a super obvious question to most over here, but I know nothing about power supplies, so please bear with as I try to explain what is going on. I have one of these SPS705 68VDC power supplies running inside a rather simple stepper motor control box...
  2. S

    Why do electric motors burn out

    Hi all, Can anyone explain why some motors regularly burn out, I am thinking specifically about electric hand drills and to a lesser extent angle grinders. I know how they burn out- normally the insulating varnish on one of the coils breaks down and creates a short- I think that is right. If...

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