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Reply-To: "James Sweet"
From: "James Sweet"
References: <17jx9.44070$Mb3.firstname.lastname@example.org> <email@example.com>
Subject: Re: Nice power supply - cheap
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
NNTP-Posting-Date: Mon, 04 Nov 2002 01:27:51 GMT
Organization: AT&T Broadband
Date: Mon, 04 Nov 2002 01:27:51 GMT
What if you used a ballast resistor (or resistor bank more likely) that
would limit it to it's max current? Could probably spot weld then.
"Sam Goldwasser" wrote in message
> "warren weber" writes:
> > N. Coesel wrote in message
> > news:firstname.lastname@example.org...
> > > "warren weber" wrote in message
> > > news:Ud1x9.22645$VJ5.email@example.com...
> > > > Would they be good as a spot welder for sheet metal? Warren
> > > >
> > >
> > >
> > > No. These power supplies usually have fold back current limiting which
> > > that the short circuit current is many times less than the maximum
> > > current.
> > >
> > > --Thank you. I did not know that and I have a large out put 5 volt
> And at some intermediate currents between full load and short circuit,
> supplies like this blow up. :)
> --- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
> Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
> +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
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