Hello.
I'm unsure about battery power circuits and how much capacitance/capacitors I need, I am often fiddling with analog circuits and I as standard use a 0.1µF capacitor next to each IC. 10µF/0.1µF if its a precision IC to be sure.
And when I have a regulator I usual put 10-100µF at its output and perhaps another 10 or 22µF further down the rail if it spans a few centimeters. But this is from ciruits assumed to be powered by a transformer-rectifier.
In trying to ask this question I find that I don't have any clue about how much capacitance I need where, but I have to think that when battery power is applied I can ease up on bypass capacitors?
I know that capacitors is often used as a fast-reacting power sources to supply ICs as the rail can't deliver the power in the time frame needed, but I would like to get a firm grip of how much/high capacitance I need to use, I have two situations.
1, Analog precision circuits.
2, Digital circuits.
Is it possible to offer some more detailed guidelines regarding this subject?