converting 12 Volt DC to 1.5V

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=10326
Printed Date: May 23, 2024 at 3:48 PM

Topic: converting 12 Volt DC to 1.5V

Posted By: sammy004
Subject: converting 12 Volt DC to 1.5V
Date Posted: March 02, 2003 at 7:22 PM

Can someone please tell me how I can make something that runs on a small 1.5V battery run on a 12 Volt car battery. Do I need some resistors for this job

Replies:

Posted By: Two_Cold
Date Posted: March 02, 2003 at 9:23 PM

I would buy a power adapter that plugs into the cigarette lighter, cut off the end and splice it in to a 12 volt supply. They are cheap and supply a reliable current. Plus it is fast & easy.

Posted By: bdl666
Date Posted: March 06, 2003 at 4:56 PM

What exactly do you want the 1.5volts for?

Posted By: sammy004
Date Posted: March 06, 2003 at 6:25 PM

i Have a thermostat its on a battery and I wanna hook it up to 12 volts car battery

Posted By: bdl666
Date Posted: March 07, 2003 at 2:24 AM

I will have to go with Two_Cold, the variable power supply it's the way to go. That is if you can find a power supply with a 1.5v output. Most of them start at 3v and and end on 9v. Other wise you are goin to have to use a battery. In that case use a lithium battery they last longer and they are resitant to cold.

Posted By: CorradoG60
Date Posted: March 11, 2003 at 5:18 PM

Ya know a Circuit Board, a zerner diode, some resistors, and a 2n3055 transistor and you could have a 1.5V Voltage regulator. THat is if your electroncally inclined.

-------------
The FLUKE Guy.

Posted By: Two_Cold
Date Posted: March 11, 2003 at 8:33 PM

Here is the power adapter that will work for you.

https://www.powerstream.com/DC6.htm

It is a 12 volt to 1.5 volt for $16. The easiest way to go.

Print Page | Close Window