PS caps in parallel

ALW

Member
2001-06-12 10:15 am
UK
Disadvantages

The only obvious disadvantage is the leakage current is increased for each parallel cap.

Whether this is relevant, or larger than when using a single large capacitor is dependant upon the capacitor choice, but it will increase quiescent current flows in the PSU wiring, which could have sonically degrading effects, particularly if leakage current has an AC content.

Andy.
 
It depends on the individual caps. What ESR and Series inductance the small ones and the big one have.

It depends on the circuit we want to supply with power.
A class AB amplifier has a great advantage with a fast PSU with low ESR and low L but a single ended class A will have small benefits.

For space one big one is an advantage. For the price probably the small ones are cheaper.