Pro/Forums - View Single Post - Need info, 12v

Brians256 · 02-17-2002, 11:07 PM

If you go the voltage regulator route (a good option), take a look at Uller's LM317 tutorial. I give an URL linkage to his site in my fan speed control article. It takes all of five components to do it (three if you don't care about smoothing out the voltage with capacitors). It's darn easy and it works well. The only drawback is that using an LM317 means that you can't get a full 12V to the fan anymore because the LM317 consumes a bit of voltage. You can only get about 10.6V or 11V (I can't remember the exact number).

02-17-2002, 11:07 PM	#7
Brians256 Pro/Staff Join Date: Oct 2001 Location: Klamath Falls, OR Posts: 1,439	If you go the voltage regulator route (a good option), take a look at Uller's LM317 tutorial. I give an URL linkage to his site in my fan speed control article. It takes all of five components to do it (three if you don't care about smoothing out the voltage with capacitors). It's darn easy and it works well. The only drawback is that using an LM317 means that you can't get a full 12V to the fan anymore because the LM317 consumes a bit of voltage. You can only get about 10.6V or 11V (I can't remember the exact number).