| T O P I C R E V I E W |
| harley busch |
Posted - Sep 27 2008 : 03:09:20 AM
i am trying to figure a way to convert 36v to 12 volts.
i have 6,6v batts. wired in series.(?) (pos.to neg)=36v.
i don't want to just pull 12 volts from just two of the batts. this seems to work these batts to hard.
how can i build a device that will convert the 36v to 12v so that i may use standard auto lighting products.
i do not know much about electronics so please keep responses as simple as possible. i have the basic ability to solder. i could most likely figure out how to fab. the components together. i just do not know what configuration of parts i will need.
mailto:harleybusch@yahoo.com
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| 8 L A T E S T R E P L I E S (Newest First) |
| harley busch |
Posted - Oct 19 2008 : 11:05:24 AM
thank you to all who helped me out i came to the same conclusion a day or two ago USE 36V BULBS...LOL....... |
| pebe |
Posted - Oct 12 2008 : 10:53:31 AM
Use PWM. 36V switched on for 1/3 time = 12V.
Make a mutivibrator with a 30% duty cycle and use it to drive a FET.
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| Aaron Cake |
Posted - Oct 12 2008 : 10:32:49 AM
You can probably make it yourself for less money, though the easiest way (linear regulators) will be less efficient.
Look up the datasheet on the 7812 linear regulator. It shows how to add a pass transistor to handle higher currents. One of those for each light is the simplest and probably cheapest way to do it.
Although, why not switch to 36V bulbs? |
| harley busch |
Posted - Oct 06 2008 : 7:41:41 PM
thank you for these answers.
i would like to know if i could build this my self for less than the cost of an off the shelf unit.
any one can just go and buy something.
as far as my skills are concerned, i can follow most schematics, and besides failure is only a deterrent to those who are afraid to start over.
i cant imagine that this project will be that difficult.
if you don,t mind me asking a million questions i don't mind trying to build this how else will i get experience in electronics. I sure don' want to build a bunch of crap i don't need,to learn how.
i look forward to your next reply
thank you for your time
Harley |
| Aaron Cake |
Posted - Oct 05 2008 : 10:08:37 AM
1157s draw about 4-5A each. You're asking for a lot of current. If you don't have much electronics experience, I'd suggest buying a commercially available DC-DC converter. You can find one for around $100. |
| harley busch |
Posted - Oct 03 2008 : 5:04:20 PM
i am needing enough power to run 2 3 inch dia head lights and two 1157 type bulbs in the rear for breaks and run |
| harley busch |
Posted - Oct 03 2008 : 4:59:25 PM
i am not sure what those parts are i am a compleate newbie |
| Aaron Cake |
Posted - Sep 28 2008 : 11:14:42 AM
The simplest method would be to use a linear regulator like the 7812. It depends on how much current you need. The 78xx series can handle abou 1.5A. More then that and you need to add a pass transistor. |
