Subject:
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Re: Small battery box into 9V powersource?
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 7 Oct 2004 20:59:58 GMT
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Viewed:
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996 times
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> I'd like a small powersource I can plug into a wall, and I've got a small 9V
> battery box that seems to have gone bad. The idea is to use a standard "wall
> wart" transformer to feed 9-12V DC into the small battery box. But, with all
> that lovely room in there, it would be nice to add a rheostat of some type to
> be able to dial up the voltage I really want (think very poor mans train
> transformer).
what your electronic design lacks, is called a DC to DC converter. Have a google
search about "dc dc converter". Restrinct the search by the voltage you like.
http://www.elexp.com/t_dc-dc.htm
the circuit you will find here can easily fit into hybrid circuit. So you can
buy the whole thing as a DC DC Converter.
greetings
Ralph
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