 Simple electrical, question |
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| Elliot Cannon |
 Jun 15 2011, 01:19 PM
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#1
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914 Guru  Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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I have a small 12v electric accessory motor on the car that I want to limit the rpm's on. I don't need to control the rpm, just reduce it somewhat. What's the easiest option to do this.
Cheers, Elliot |
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| nathansnathan |
Jun 15 2011, 01:41 PM
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Senior Member Group: Members Posts: 1,052 Joined: 31-May 10 From: Laguna Beach, CA Member No.: 11,782 Region Association: None |
If you put a resistor inline on the power to a dc motor, it will slow it down.
I did it with computer fans, I had the link to a calculator, but it was for computer fans. There are calculators to tell you what resistance you need to take whatever voltage to whatever voltage that you can find. Make sure to get resistors that are rated at a high enough wattage. |
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| SirAndy |
Jun 15 2011, 02:11 PM
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#3
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Resident German Group: Admin Posts: 41,691 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(nathansnathan @ Jun 15 2011, 12:41 PM)  Make sure to get resistors that are rated at a high enough wattage. (IMG:style_emoticons/default/agree.gif) |
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Posts in this topic
Elliot Cannon Simple electrical Jun 15 2011, 01:19 PM
SirAndy I have a small 12v electric accessory motor on th... Jun 15 2011, 01:28 PM
Elliot Cannon So, if I want to cut the rpm in half, do I step it... Jun 15 2011, 02:27 PM SirAndy This might help:
http://www.sw-em.com/Vintage_Vol... Jun 15 2011, 02:43 PM kg6dxn The VW world has been making devices to run 6V equ... Jun 15 2011, 06:44 PM
70_914 Here is an option. Cheap and easy.
http://store.... Jun 15 2011, 06:51 PM |
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