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From: "Roger Lascelles"
Subject: Re: 'Current Dumping' Amplifier Circuits ?
Date: Mon, 2 Dec 2002 19:26:51 +1100
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I think Wirless World (as it was then) ran an article which explained the
idea. From memory, they showed a high power class B power stage with lots
of crossover distortion and a lower powered class A (?) stage which added an
additional contribution to the output to cancel out the distortion of the
Class B. Idea is that a rugged output stage with no thermal runaway but
mediocre linearity can work with a low power fast & clean amp.
It would be interesting to see if the distortion at low signal levels is
better than straight class AB designs.
It may be unnecessary - other high quality audio amps do not use it. If I
was building an amplifier, I would not bother. If I chose a Quad amp, it
would be becuase it sounded good and was priced right - not because of
"HG" wrote in message
> 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?
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