Quote from: aion on December 28, 2021, 06:23:11 AMQuote from: Aentons on December 27, 2021, 08:46:09 AM
You can change the values with no I'll effects as long as you have at least C1 with a value in the uf range. You will commonly see a 47u electrolytic and 100pf mlcc for C1 and 2. You see multiple caps of the same value in parallel alot too. For better performance, It is also recommended to use low-esr electrolytics if possible.
I don't think I've ever seen a pf value for C2, it's usually either 100n or 10n... my understanding is that it's mainly just because ceramic provides better filtering at certain frequencies, so using an "average value" ceramic in conjunction with a large electrolytic, you get the best of both types. I'm not sure a 100pf capacitor would contribute much to power filtering. More often you see them on the signal input to prevent radio frequencies.
Yep, sorry, typo... You're right, 100nf.
From what I remember reading, ceramics are inherently low esr. So it's used in that position if a regular electro is used for C1.
I forget where I learned that or I'd post a link, sorry