Low-medium-hi control circuit

Discussion in 'General Electronics Chat' started by unbwogable, Nov 6, 2011.

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  1. unbwogable

    Thread Starter New Member

    Feb 11, 2009
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    I'm retrofitting my vehicle with heated seats. I'm looking to use an LM338 to control the heating element, and I need a circuit that will allow me to vary the resistor value, adjusting the output voltage as a result. What I'm really after is a circuit that I can push a button and have it 'step' to the next resistor value. I've scoured the internet, and even attempted a few circuits myself, no luck. Anyone have any ideas?
     
  2. crutschow

    Expert

    Mar 14, 2008
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    3,220
    How much current does the seat require?
     
  3. iONic

    AAC Fanatic!

    Nov 16, 2007
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    Your vehicle? Meaning Your Car??
     
  4. Wendy

    Moderator

    Mar 24, 2008
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    Hello,

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

    Quote:
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    • Any kind of over-unity devices and systems
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    There will be enough sites where automotive questions can be discussed :
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