1 or 2 relays?

Discussion in 'General Electronics Chat' started by Jan Rune, Mar 8, 2014.

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  1. Jan Rune

    Thread Starter Member

    Apr 22, 2008
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    Hi,
    Im gonna make my folding mirrors unfold/fold when unlocking/locking doors. I will get my coil(s) feed from the door lock that open/close with reversed polarity.

    Will it work to with 1 relay(schematic 1) or do i need to use two relays with flyback diodes? The door lock controller probably have this protection to it is my guess. Any other pitfalls here?

    The mirror fold ECU only needs a ground connection to fold or unfold the mirrors.

    Thank you
    Jan

    1 relay
    [​IMG]

    2 relay
    [​IMG]
     
    Last edited: Mar 8, 2014
  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    Vehicle mods are contrary to the Terms of Service of this site. Don't be surprised if the moderators close this thread :(
     
  3. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    I am closing this thread as it violates AAC policy and/or safety issues.

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