Article View: sci.energy
Article #2097Re: Why not 120 VDC ? Why invert?
From: Rob Kleinschmidt
Date: Tue, 26 Jan 1993 17:54
Date: Tue, 26 Jan 1993 17:54
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In article <1993Jan23.000753.14523@michael.apple.com>, ems@michael.apple.com (E. Michael Smith) writes: >Pondering this ... Why not just use a 120 VDC battery pack and use >120 VDC for a bunch of stuff? Lightbulbs don't care if they are >AC or DC, >So why not? Why not have a 120 VDC battery bank directly running >the incadecent lights, and any easy to change motors like heaters, >and any suitable electronic ballast CF bulbs? Then you only need >an inverter for the electronic stuff, some general purpose outlets >in the kitchen and other parts of the house, and maybe the fridge. A neighbor of ours was actually running a setup like this. Not sure if the lines were part time D.C. part time A.C. or full time D.C. . He had also built several small inverters for various individual appliances. Among other things, I understand that standard 120v switches may not be appropriate because of D.C. arcing, and I think that it would perhaps be a good idea to use non-standard plugs and outlets to prevent connection of inappropriate stuff to a DC outlet. With kids to worry about, it seemed prudent to make our house straight A.C. and plunk down the bucks for the inverter. R. Kleinschmidt
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Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!ames!olivea!apple!altos!gumby!robk From: robk@gumby.Altos.COM (Rob Kleinschmidt) Newsgroups: sci.energy Subject: Re: Why not 120 VDC ? Why invert? Message-ID: <6212@gumby.Altos.COM> Date: 26 Jan 93 17:54:37 GMT References: <1993Jan23.000753.14523@michael.apple.com> <1jr751INN16a@gap.caltech.edu> Reply-To: robk@altos.COM (Rob Kleinschmidt) Organization: Altos Computer Systems, San Jose, CA Lines: 26