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Re: [Amps] Voltage Doubler Regulation

To: Ian White GM3SEK <>, "" <>
Subject: Re: [Amps] Voltage Doubler Regulation
From: "Fuqua, Bill L" <>
Date: Sun, 12 Jun 2011 16:33:32 -0400
List-post: <">>
Regualation really became an issue when we went to sold state rectifiers. 
This allowed hams to go to capacitive input filters and get rid of the filter 
inductors that
improved load regulaton . Remember the swinging chokes?
They actually did provide some load regulation.
The good thing is that the power supplies are much lighter than then at the cost
of regulation and power factor.

Bill wa4lav

From: [] On Behalf Of 
Ian White GM3SEK []
Sent: Sunday, June 12, 2011 4:28 PM
Subject: Re: [Amps] Voltage Doubler Regulation

Richard Solomon wrote:
>I would like to look at ways to improve the Voltage Regulation in a
>Voltage Doubler Circuit.
>I tried Google, but didn't get much on the actual calculations involved.
>Since we have certain givens; such as The AC Line is what it is, the
>Plate Xfmr is what it is,
>the only variable in the equation would be the Capacitor value. Am I
>correct in that assumption ?

Many more variables need to be taken into account. Voltage regulation in
a doubler circuit will always be poorer than in a similar full-wave
bridge, and the series resistance of the transformer windings becomes a
critical factor.

>Can anyone point me to a reference that I can use ?
>Thanks, Dick, W1KSZ

Use the PSU Designer software:

Follow this link to download HV rectifier data and example files:


73 from Ian GM3SEK
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