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Re: [AVR-Chat] AVR Power Supply Noise

2006-07-10 by Ralph Hilton

On Mon, 10 Jul 2006 15:59:35 -0000 you wrote:

>I connected a car battery (12v) to LM7805 to fully minimize power
>supply noise. But still get errors in executing codes.
>I read a film capacitor 0.1uF is necessary after regulator. I used
>electrolyte one 0.15uF.  Does it make difference? 

Yes, electrolytics are slower to respond. I would use 10uF tantalum after
the regulator and put 0.1uF (not electrolytic) close to both sets of supply
pins.




--
Ralph Hilton
http://www.ralphhilton.org
C-Meter: http://www.cmeter.org
FZAOINT http://www.fzaoint.net

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