Relays?


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  1. #1
    mark Lister's Avatar
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    Default Relays?

    I have an o/p voltage of 0 to 5vdc from the throttle pot on my car. I need to somehow only switch a relay when it is 4.5v or above, and then release again when it drops below.
    It doesnt need to switch any power. Help please, mark

  2. #2
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    Cool

    Hi,

    No need a Pic here !!!

    a simple LM393 comparator or a "741" OPA should do the job...

    Alain
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