After a quick search, I'm almost afraid to say the word capacitor, 
but what are the advantages and disadvantages to parallelling many small capacitors, as opposed to using one large one.
eg) a bunch of .68uF caps in series to make a 10uF coupling cap, or 1 10uF one.
How about being used as PSU Bypass?
Has anyone done any MEASUREMENTS?
I've heard that ESR is improved. Is esr typically very nonlinear w/ respect to frequency, or could it easily be accounted for?
Nobody suggest listening tests please. While I don't deny that there are many things we can hear, that may be difficult to measure, etc.. I don't want to do a lot of screwing around at the moment. If such and such set up sounds best to you, that's fine. I'm not saying you're wrong, just that I want to see the numbers.
SO, quantifiable answers only please.
sorry to be so long winded about that, but I just spent almost 2 hours reading through what basicly amounted to flame wars based on facts that should easily have been measured.
but what are the advantages and disadvantages to parallelling many small capacitors, as opposed to using one large one.eg) a bunch of .68uF caps in series to make a 10uF coupling cap, or 1 10uF one.
How about being used as PSU Bypass?
Has anyone done any MEASUREMENTS?
I've heard that ESR is improved. Is esr typically very nonlinear w/ respect to frequency, or could it easily be accounted for?
Nobody suggest listening tests please. While I don't deny that there are many things we can hear, that may be difficult to measure, etc.. I don't want to do a lot of screwing around at the moment. If such and such set up sounds best to you, that's fine. I'm not saying you're wrong, just that I want to see the numbers.
SO, quantifiable answers only please.
sorry to be so long winded about that, but I just spent almost 2 hours reading through what basicly amounted to flame wars based on facts that should easily have been measured.
+ Better electrical performance
+ Higher current capability
+ Better cooling
- Bigger, larger physical volume
- Costs more
- More work to connect every capacitor
+ Higher current capability
+ Better cooling
- Bigger, larger physical volume
- Costs more
- More work to connect every capacitor
Don't always assume that many smaller caps will be better than a few larger ones. 10x 220uF caps in parallel will have lower ESR than a single 2200uF. however, 2x 2200uF will have even lower ESR, twice the capacitance and take up less board space.
🙂
🙂
look at this section in one rod elliot's articles: http://sound.westhost.com/power-supplies.htm#capacitor-value
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