Current flow controller for DC Motors


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  1. #1
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    What about an automobile/truck circuit breaker. They reset on their own and normally will handle a bit more amps than rated for a short time.

    But if the shaft is locked then you do not want it to keep trying? So a latching relay tied in with the circuit breaker might do the trick.
    Dave
    Always wear safety glasses while programming.

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    Quote Originally Posted by mackrackit View Post
    What about an automobile/truck circuit breaker. They reset on their own and normally will handle a bit more amps than rated for a short time.

    But if the shaft is locked then you do not want it to keep trying? So a latching relay tied in with the circuit breaker might do the trick.
    Uhmmm..
    It could work.
    I was looking for some more sophisticated solution (like transistors that regulate the current flow right to the thereshold)...

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    Quote Originally Posted by mikebar View Post
    Uhmmm..
    It could work.
    I was looking for some more sophisticated solution (like transistors that regulate the current flow right to the thereshold)...
    It's called 'foldback' in a regulator circuit.
    http://en.wikipedia.org/wiki/Foldbac..._supply_design)
    Totally useless link, but it might get you started...

    EDIT:
    http://www.national.com/appinfo/power/files/f4.pdf
    Better link...

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