Converting 3 wire out put to a 4 wire output

Discussion in 'General Electronics Chat' started by Muadi, May 27, 2015.

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  1. Muadi

    Thread Starter New Member

    May 27, 2015
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    Hi all. I have a project going, and I need some assistance. Wiring is not my strong suit.
    I'm doing a major car project. Standard hotrod stuff. The circuitry for my mirror control is a 3 wire system. The mirrors I'm installing use 4 wires. I have the logic of all the wires, but I'm getting stuck on how to get the next step done. Here is what I know:
    My mirror switch has 3 wires, which has the following function:
    ..................Yellow............Brown........Blue
    Left................-....................+
    Right..............+....................-
    Up.......................................+...............-
    Down...................................-...............+

    As you can see, when moving left/right, the yellow wire becomes energized and blue is neutral. When moving up/down, yellow becomes neutral and blue becomes energized.

    For my mirrors, I have 4 wires that need to see inputs.
    ....................Light-green.............Light-green/Blue.................Light-green/Yellow...............Black
    Left.....................-...................................+....................................-...............................-
    Right..................+...................................-.....................................-...............................-
    Up......................-...................................+....................................+...............................-
    Down.................+...................................-....................................+...............................-

    I have been able to get the Left/Right to work fine. That has been easy. The hard part is Up/Down. Somehow, I need to wire it up so that when Blue is activated, I need to send a + to Light-green/Yellow... (if Blue is +, then send +, if Blue is -, then send +)

    I need some sort of logic circuit set up that will send out a + when my input wire is + or -, but no signal when the wire is neutral.

    Any suggestions?

    Thanks in advance.... John
     
  2. Wendy

    Moderator

    Mar 24, 2008
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    2,534
    The owners of All About Circuits have elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

    This thread is against the AAC forum rules, Chapter 6, as seen here:

    6. Restricted topics. The following topics are regularly raised and however are considered “off-topic” at all times and will results in Your thread being closed without question:

    • Any kind of over-unity devices and systems
    • Automotive modifications
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    Automotive modifications of any kind are strictly forbidden. Therefore, this thread will be closed.

    Please try to understand the reasons behind this action, and feel free to browse and use the forums.

    You might find answers to your questions in one of these forums:

    http://forum.allaboutcircuits.com/showthread.php?t=54400

    Another good forum that shares many of the same membership is http://www.electro-tech-online.com/ . Good luck.
     
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