Doubler question

Nixie · 26th September 2006, 04:51 AM

Got this off the web. How do I calculate capacitor values, and specifically, Coutput vs. C1/C2 ratio.

janneman · 26th September 2006, 06:28 AM

Quote:

Originally posted by Nixie
Got this off the web.[snip]

... what..?

Nixie · 26th September 2006, 09:16 AM

.

AndrewT · 26th September 2006, 10:42 AM

Hi,
would the standard 2mF per amp be approriate here?

Doublers are real hard on ripple and need big capacitance for even small output currents.

I'm inclined towards 2mF/A on C and 4mF/A on C1 & C2, followed by regulation to reduce the ripple and the seriously sagging voltage as current demand goes up.

Can psud2 handle this?

Nixie · 26th September 2006, 11:48 AM

Oh, so C would be smaller than the other two caps...

26th September 2006, 04:51 AM	#1
Nixie Banned Join Date: Jan 2006 Location: Vancouver, BC	Doubler question Got this off the web. How do I calculate capacitor values, and specifically, Coutput vs. C1/C2 ratio.

26th September 2006, 10:42 AM	#4
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, would the standard 2mF per amp be approriate here? Doublers are real hard on ripple and need big capacitance for even small output currents. I'm inclined towards 2mF/A on C and 4mF/A on C1 & C2, followed by regulation to reduce the ripple and the seriously sagging voltage as current demand goes up. Can psud2 handle this? __________________ regards Andrew T.

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26th September 2006, 11:48 AM	#5
Nixie Banned Join Date: Jan 2006 Location: Vancouver, BC	Oh, so C would be smaller than the other two caps...

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