Handy Board : 5259


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Subject:	Re: voltage dropping and current limitting
Newsgroups:	lugnet.robotics.handyboard
Date:	Tue, 26 Jan 1999 23:15:13 GMT
Original-From:	Curt Mills, WE7U <hacker@tc.fluke=NoSpam=.com>
Viewed:	729 times

On Tue, 26 Jan 1999 BMajik5127@aol.com wrote: > I have a 24 vdc supply, how can I drop the voltage to about 13 or 14 volts? > Would I use resistors across the supply? Or what??? > Thanks in advance. Use an LM317T adjustable voltage regulator and 2 resistors. If you can't find a data sheet on it on the net somewhere, someone should be able to give you the formulas for figuring out the resistors. Find national semiconductor on the net and you should be able to find a datasheet there in .pdf format. Curt Mills, WE7U hacker.NO_*SPAM@tc.fluke.com Senior Methods Engineer/SysAdmin "Lotto: A tax on people who are bad at math." -- unknown "Windows: Microsoft's tax on computer illiterates." -- WE7U

Message has 1 Reply:

		Re: voltage dropping and current limitting
(...) Look in an older edition of The Art of Electronics by Horowitz and Hill. They use the LM317 as an example voltage regulator, explain the resistor values, and provide a data sheet in the appendix. This is a very useful reference book for all (...) (26 years ago, 27-Jan-99, to lugnet.robotics.handyboard)

Message is in Reply To:

		voltage dropping and current limitting
Hello out there, I have a 24 vdc supply, how can I drop the voltage to about 13 or 14 volts? Would I use resistors across the supply? Or what??? Thanks in advance. -Michael (26 years ago, 26-Jan-99, to lugnet.robotics.handyboard)

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