Quiet supplies ... ahhhhh !!!!
Hi, Leonel
One simple solution is to bring the 5 v to the PIC ( only the PIC ...) through a diode ( Low drop Schottky if required ) and havind a BIG capacitor ( say 470 - 1000µF ) connected to the Cathode. This doesn't keep you from having the usual 10µF and .1µF decoupling caps.
This will filter spikes, and allow powering the PIC if supply voltage falls too low.
This also permits to shut down all peripheral components BEFORE the Pic goes to bed ... always having known peripheral states at power off.
Alain
Hi, Mel
When you design an Electronic Ignition or a High Voltage device from a battery , you DO NOT have the choice for a "nice and clean" supply !!! ...
Last edited by Acetronics2; - 29th April 2006 at 10:10.
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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