Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
References: <email@example.com><firstname.lastname@example.org> <3debaeec.2879341@News.xtra.co.nz>
Subject: Re: 'Current Dumping' Amplifier Circuits ?
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Thu, 5 Dec 2002 07:38:24 -0000
NNTP-Posting-Date: Thu, 05 Dec 2002 07:38:29 GMT
John Jardine wrote:
> John Woodgate wrote in message
>> I read in sci.electronics.design that Winfield Hill
>> wrote (in ) about
>> ''Current Dumping' Amplifier Circuits ?', on Tue, 3 Dec 2002:
>>> "Kevin wrote...
>>>> "In my view, its simply not worth the effort. With a trivial
>>>> 6-8 transistor circuit one can easily achieve 0.002% THD."
>>> Hmm, an eight-transistor high-performance circuit, likely good
>>> for 20ppm, I can picture in my mind. Ys, there it is now. :>)
>>> But a six transistor 20ppm circuit is hard to visualize.
>> You probably only need five if you are satisfied with about 1 W
>> maximum output and 4 V input needed to get it. (;-)
>> Regards, John Woodgate, OOO - Own Opinions Only.
>> http://www.jmwa.demon.co.uk Interested in professional sound
>> reinforcement and distribution? Then go to http://www.isce.org.uk
>> PLEASE do NOT copy news posts to me by E-MAIL!
> 6 modern trannies. A couple of active loads. A bit of bootstrapping. I
> reckon 20ppm should be reachable.
> The killer is at how many Watts? ;-)
I'm asumming power mosfets.
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.