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Reply With QuoteNo, 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.
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
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.
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.
Yes, I am planing to put a heatsink as suggested.
Thanks for help.
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