Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!usenet.ins.cwru.edu!news
From: dkazdan@cwsys2..CWRU.Edu (David Kazdan)
Newsgroups: sci.electronics
Subject: Re: battery chargers
Summary: Chip available
Keywords: 3906
Message-ID: <1989Dec6.142520.15754@usenet.ins.cwru.edu>
Date: 6 Dec 89 14:25:20 GMT
References: <23118@gryphon.COM>
Sender: news@usenet.ins.cwru.edu
Reply-To: dkazdan@cwsys2.UUCP (David Kazdan)
Organization: CWRU Dept of Systems Engineering
Lines: 10

For lead-acid battery charging, Unitrode makes a chip that looks really
good:  the 3906 (2906, mil-spec).  I have a couple but have not built
the charger yet.  It monitors charge current and voltage, keeps the
charged battery going through a slight charge/discharge cycle, monitors
ambient temperature internally to adjust its charging parameters, etc.

The manufacturer's application notes are involved.  There was a cookbook
sort of article about it in QST for July (I think) 1987.

--David