Really elementary question about caps.

G · 27th February 2007, 04:59 AM

Hi all. I have a rather simple question that I should already know the answer to but I'm unsure. Say I was building a PSU and I needed to have a set amount of capacitance per section. Would paralleling several smaller caps to reach that amount rather than using one big capacitor lower the impedance of the section? It seems that it would but I want to be sure.

Mikael Abdellah · 27th February 2007, 05:13 AM

If my memory is correct, the short answer is: Yes. alot of smaller caps will give you less impedance. I think there are a few threads that better explains it.

G · 27th February 2007, 05:23 AM

Quote:

Originally posted by Mikael Abdellah
If my memory is correct, the short answer is: Yes. alot of smaller caps will give you less impedance. I think there are a few threads that better explains it.

Thanks Mikael. I suspect it is the same as paralleling several resistors which would, of course, lower their combined resistance.

amplibang · 7th March 2007, 07:01 AM

I don't trust my judgement either but I think it should. Better check out an electronics shop to erase your doubts.

_________________________
McIntosh MA6900 Integrated Amplifier - Download the MA6900 Integrated Amplifier Catalog by McIntosh Laboratory, Inc.

ArtG · 7th March 2007, 02:24 PM

Paralleling caps is the prefered way to do what you wish to do. The tradeoffs are cost and complexity.

27th February 2007, 04:59 AM	#1
G diyAudio Member Join Date: Apr 2002 Location: Belleville, IL.	Really elementary question about caps. Hi all. I have a rather simple question that I should already know the answer to but I'm unsure. Say I was building a PSU and I needed to have a set amount of capacitance per section. Would paralleling several smaller caps to reach that amount rather than using one big capacitor lower the impedance of the section? It seems that it would but I want to be sure. __________________ Gavin

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27th February 2007, 05:13 AM	#2
Mikael Abdellah diyAudio Member Join Date: Jan 2003 Location: Sweden	If my memory is correct, the short answer is: Yes. alot of smaller caps will give you less impedance. I think there are a few threads that better explains it.

7th March 2007, 07:01 AM	#4
amplibang diyAudio Member Join Date: Feb 2007 Location: Blythe, Georgia	I don't trust my judgement either but I think it should. Better check out an electronics shop to erase your doubts. _________________________ McIntosh MA6900 Integrated Amplifier - Download the MA6900 Integrated Amplifier Catalog by McIntosh Laboratory, Inc.

7th March 2007, 02:24 PM	#5
ArtG diyAudio Member Join Date: Nov 2006 Location: Central PA	Paralleling caps is the prefered way to do what you wish to do. The tradeoffs are cost and complexity.

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