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Article View: sci.electronics
Article #10125

Re: Bullshit, or NOT? AC line problems.

#10125
From: Jerry Callen
Date: Wed, 13 Feb 1991 19:41
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In article <2470012@hp-vcd.HP.COM> johne@hp-vcd.HP.COM (John Eaton) writes:
>Todays switching supplies are superior in size,cost and efficiency
>but are lousy as loads. They act as negative resistance by drawing
>more current as the voltage decreases and tend to only draw current
>during the peak times of the AC cycle.

Wait a sec - isn't it true that ALL power supplies, once past the initial
power-on state, only draw current during the peaks in the AC cycle?
The filter caps will only draw current when the voltage out of the 
bridge is greater than the voltage on the cap, right?

-- Jerry Callen
   jcallen@encore.com
Technical Details
Message-ID: <14050@encore.Encore.COM>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!uunet!bu.edu!encore!jcallen
References: <1991Feb5.005045.388@miavx2.ham.muohio.edu> <2470012@hp-vcd.HP.COM>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!uunet!bu.edu!encore!jcallen
From: jcallen@Encore.COM (Jerry Callen)
Newsgroups: sci.electronics
Subject: Re: Bullshit, or NOT? AC line problems.
Message-ID: <14050@encore.Encore.COM>
Date: 13 Feb 91 19:41:53 GMT
References: <1991Feb5.005045.388@miavx2.ham.muohio.edu> <2470012@hp-vcd.HP.COM>
Reply-To: jcallen@encore.Com (Jerry Callen)
Organization: Encore Computer Corp, Marlboro, MA
Lines: 13