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From: "John Jardine"
Subject: Re: 'Current Dumping' Amplifier Circuits ?
Date: Wed, 4 Dec 2002 23:47:39 -0000
NNTP-Posting-Date: 4 Dec 2002 23:35:30 GMT
X-Newsreader: Microsoft Outlook Express 5.00.2615.200
Kevin McMurtrie wrote in message
> In article <firstname.lastname@example.org>,
> "HG" wrote:
> >Any comments on the pro's and con's of 'Current Dumping' circuits
> >by Peter Walker & (I think) Mike Albinson), as used in most Quad power
> >amplifiers since the 405?
> I've been following all these theads and doing Google searches. It
> turns out that I invented a current dumping amplifier when I was about
> 14 years old. LOL! I based it on a common trick used to keep gears
> from knocking: One or two small gears are added to the sides of a main
> gear and tensioned with springs. The small gears do little work but
> they keep the motion smooth when the direction changes.
> CheeseAmp, my old school project, has it:
> A recent amp I built has it:
> There goes all the patents. Prior art is on gears everywhere :)
Wish I could have done all that at 14!.
Or the 'anti-backlash' radio receiver dial drives consisting of a split main
cog (equiv class B amp) trying to be pushed in opposite directions by a
couple of springs. Stopped from flying apart by the teeth of the dial driver
cog (the feedback mechanism).
Springs are energy storage devices, maybe a couple of inductors could supply
the handover power as the class B stage is changing direction?.
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