The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: John Woodgate
Subject: Re: An interesting little prob.
Date: Wed, 30 Oct 2002 12:25:42 +0000
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Wed, 30 Oct 2002 14:36:48 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Tony Williams
wrote (in <email@example.com.
uk>) about 'An interesting little prob.', on Wed, 30 Oct 2002:
>The V-controlled Shunt-reg isn't sorted yet though. It has
> to be not less than (say) 1 megohm shunt resistance when
> not regulating
I don't suppose that it's you major problem, but 1 Mohm seems awfully
high for a 20 V compliance voltage. Do you really need that degree of
'constancy' of your current source?
> and has to be programmable to as low a
> voltage as practical.... less than 1v would be nice.
The combination of 1 Mohm and 1 V may be a real PITA. That's why I
suggest that you might settle for less.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
Interested in professional sound reinforcement and distribution? Then go to
PLEASE do NOT copy news posts to me by E-MAIL!
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup