Article View: sci.electronics
Article #5390Re: question about computer power supply
From: Phil R. Karn
Date: Tue, 31 Jul 1990 21:52
Date: Tue, 31 Jul 1990 21:52
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In article <4924@uafhp.uark.edu>, hbj@uafhcx.uucp (Bernard Johnson) writes: > I have been told that the +12V line will not > be +12V until a load is connected to the supply. Some multi-voltage switching supplies regulate only the 5V output. If there is no 5V load, the switcher will cut back to a very low duty cycle, and this may not be enough to sustain the 12V output (especially if there is a load there). Try putting a load on the 5V output and see if that affects the 12V output. Phil
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!jarthur!usc!cs.utexas.edu!rutgers!bellcore-2!envy!karn From: karn@envy.bellcore.com (Phil R. Karn) Newsgroups: sci.electronics Subject: Re: question about computer power supply Keywords: computer power supply Message-ID: <1990Jul31.215231.25244@bellcore-2.bellcore.com> Date: 31 Jul 90 21:52:31 GMT References: <4924@uafhp.uark.edu> Sender: usenet@bellcore-2.bellcore.com (Poster of News) Reply-To: karn@thumper.bellcore.com Organization: Packet Communications Research Group (Bellcore) Lines: 12