Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mailrus!cornell!vax5!ga9
From: ga9@vax5.CIT.CORNELL.EDU
Newsgroups: sci.electronics
Subject: Re: want help with power supply
Summary: Identifying Terminals (They're SENSE LINES!!)
Keywords: Switchin' Power Supply, Sense Lines, Real(TM) World
Message-ID: <18936@vax5.CIT.CORNELL.EDU>
Date: 6 Jul 89 12:52:26 GMT
References: <113785@sun.Eng.Sun.COM>
Sender: news@vax5.CIT.CORNELL.EDU
Reply-To: ga9@vax5.cit.cornell.edu (John Erickson)
Organization: Cornell University, Ithaca NY
Lines: 53

In article <113785@sun.Eng.Sun.COM> rom@xor.Sun.COM (Achyutram Bhamidipaty) writes:
>I am the proud owner of a LH RESEARCH Little-MITE 
>model LM34-1522 115 power supply.
>
>So what, you say. Well I'll tell ya, it appears to be
>a rather peculiar beast in that it has some connectors
>that dont seem to make much sense to me.
                             ^^^^^ 8^)
>
>The power supply has the following connectors on it:
>
>label	my guess on its purpose
>ac	hot ac
>acc	ac common
>gnd	earth ground
>pf	????
Hmmm, don't know this one...

>on/off	???? This is NOT a switch, just a bind post
This is the INHIBIT, asserted LOW (GND). Short it to GND to
disable output of the supply.

>+s1	??
Positive Sense, Supply 1. Tie to Supply 1 positive destination
(ie: the backplane) or short to +V1.

>-s1	???
Negative Sense, Supply 1. Tie to Supply 1 negative (GND) destination
(ie: the backplane) or short to -V1.

>+s2	???
Positive Sense, Supply 2. Tie to Supply 2 positive destination
(ie: the backplane) or short to +V2.

>-s2	???
Negative Sense, Supply 2. Tie to Supply 2 negative (GND) destination
(ie: the backplane) or short to -V2.

>
>I expected the +/- vn connections, but not the +/- sn connections
>but they didn't teach us about the sn connections at school!!

>
>Thanks for any help.
"No problem!"

>-Rom
>rom@xor.sun.com

	************************************************************
	John Erickson, Professional Student
	Digital Equipment Corp. & Cornell University
	************************************************************