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From: John Woodgate
Subject: Re: high voltage input
Date: Sat, 21 Dec 2002 21:06:49 +0000
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Sat, 21 Dec 2002 21:19:14 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that seyyah wrote
(in ) about 'high voltage
input', on Sat, 21 Dec 2002:
>How can i get an information from a 55VDC line. I need to connect the line
>to a cmos IC. What are my preferences and what do you prefer?
>1- Dividing voltage with resistors and protect the IC with a zener?
>2- or using an opto coupler?
>3- Are there any ic's which accepts high voltages directly?
>I'm looking for a cost effective solution and also reliability and security
You don't tell us the frequency range and amplitude of the signal you
are trying to retrieve, so we can't tell you how to do it.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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