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Thread: 5VDC.Is there any place in car to get it?

  1. #1
    Low Bitrate
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    5VDC.Is there any place in car to get it?

    I have created a Shutdown controller using PIC micro controller, Character LCD and PICBasic Pro. I have completed the on bench testing and its now time to install it in car. My question, is there any place in car to get 5VDC directly or I have to use voltage regulator (LM805) for this purpose?

    Thanks.
    AG

  2. #2
    Variable Bitrate
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    Szeged, Hungary
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    No, you have to use a regulator. Cars run on 12-15V. In the case of some milliamperes you can use that regulator, but about 1A and above it is more recommendable to use a stepdown converter because the heat production of a common regulator.

  3. #3
    Low Bitrate marshallh's Avatar
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    A plain old 7805 is fine enough as long as the draw is less than an amp. Make sure you have a heatsink on it. It's not very efficient, but it shouldn't matter much in a car.
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  4. #4
    Low Bitrate
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    Yes, I am planing to put a heatsink as suggested.

    Thanks for help.

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