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Article #5074Re: 12V to 5V DC conversion (for TTL logic in car) wanted
From: Cary Logan
Date: Fri, 13 Jul 1990 23:38
Date: Fri, 13 Jul 1990 23:38
31 lines
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1658 bytes
Streeter, It is my impression that automotive voltage levels often exceed 12 volts. My guess is that it could reach 16 to 18 volts while the vehicle is running. This would mean that at 3 amps you need to disapate more that 30 watts in your power supply. I strongly suggest that you consider a dc-dc converter. Interpoint makes a wide variety of dc-dc converters, I'm sure they could sell you one to meet your needs. Their address is: Interpoint 10301 Willows Road Redmond, WA 98052 (800) 822-8782 Order and Applications Hotline I have no idea what their prices are like, but they will certainly be more expensive than linear regulators. An alternative would be to check Radio Shack. I belive they have voltage converter that would plug into the lighter socket and supply you with either 3, 5, 9, or 12 volts out. I don't recall what kind of power they they can deliver. I beleive that they cost on the order of $10.00. -- Cary Logan logan@titan.tsd.arlut.utexas.edu ARL:UT/TSD P.O. Box 8029 10000 Burnet Road Austin, TX 78713 (512) 835-3118
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucsd!swrinde!cs.utexas.edu!titan!loganReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucsd!swrinde!cs.utexas.edu!titan!logan From: logan@titan.tsd.arlut.utexas.edu (Cary Logan) Newsgroups: sci.electronics Subject: Re: 12V to 5V DC conversion (for TTL logic in car) wanted Message-ID: <887@titan.tsd.arlut.utexas.edu> Date: 13 Jul 90 23:38:32 GMT References: <1990Jul12.024412.122@mintaka.lcs.mit.edu> Reply-To: logan@titan.titan.tsd.arlut.utexas.edu (Cary Logan) Distribution: na Organization: Applied Research Labs, University of Texas at Austin Lines: 31