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resistor, 6 volts to 4.5 volts?

Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=115922
Printed Date: November 04, 2025 at 4:40 AM


Topic: resistor, 6 volts to 4.5 volts?

Posted By: CutDog504
Subject: resistor, 6 volts to 4.5 volts?
Date Posted: August 26, 2009 at 9:55 AM

What value resistor would I need to change 6 volts to 4.5 volts?



Replies:

Posted By: 91stt
Date Posted: August 26, 2009 at 1:03 PM
how much current are you expecting for the circuit?



Posted By: KPierson
Date Posted: August 26, 2009 at 3:32 PM

A resistor wouldn't work.

An LM317 adjustable voltage regulator or even a zener diode (depending on how much current you need) would work best.



-------------
Kevin Pierson



Posted By: CutDog504
Date Posted: August 26, 2009 at 9:42 PM
I need less than 3 or 4 amps



Posted By: CutDog504
Date Posted: August 26, 2009 at 9:43 PM
Actually, it might only be like 1 amp.



Posted By: CutDog504
Date Posted: August 26, 2009 at 9:47 PM
I have a 6-volt 5 amp power supply, but I need to power something at 6 volts AND something at 4.5 volts. It's two battery operated devices, the 6 volt one normally takes 4 AA batteries, and the 4.5 volt one takes 3 AAA batteries. Would this be possible to run both on the same power supply?


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