How to make a 9volt Battery to output only 5-6volts??? - Page 2 at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > All Things Audio

All Things Audio
Everything Audio, from acquisition to postproduction.


Reply
 
Thread Tools Search this Thread
Old April 5th, 2005, 01:50 AM   #16
Wrangler
 
Join Date: Oct 2003
Location: DFW area, TX
Posts: 6,108
Images: 1
Shannon,

I think these good folks were suggesting that you add an additional switch to disconnect the battery when not in use. Stick with the 5volt regulator, that is the easiest solution given your original specificatons.

-gb-
Greg Boston is offline   Reply With Quote
Old April 5th, 2005, 02:01 AM   #17
Major Player
 
Join Date: Oct 2004
Location: Melbourne, Australia
Posts: 241
Shannon, hope we've helped, and not just complicated things...

a LM317 is a regulator that is fundamentally a 1.25v (IIRC) regulator. It is labelled an 'adjustable' regulator in that it is designed to have the adj pin not directly connected to 0v, but biased by a resistor network, either discreet resistors or a pot to achieve any voltage between 1.25v and 37v (depending on input voltage). Short answer is it needs more components to work than a 78xx series regulator - not necessary.

That said, 78xx regulators can be made to regulate to higher than their rated voltage by adding the resistor network as well but aren't so flexible.

Discreet components are the 'normal' components. A resistor is a resistor, a capacitor a capacitor. They are the ones you'd find in radio shack or whatever. They are not an integrated circuit such as a regulator, processor, etc that is a combination of tens or millions of transistors, resistors, etc all in the one package.
Kyle Ringin is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > All Things Audio

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 04:17 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network