LED Taillights, Diy

[Matt21lutz]

Originally Posted by ray_mcavoy

Okay, a pre-made regulator circuit will probably be your best choice then. But you still have to check the specifications to make sure it'll be suitable for your application. For example, you weren't completely off track with your original circuit using the NTE1970 regulator IC's ... you simply had the capacitors oriented incorrectly and overlooked the regulator's minimum input voltage requirements.

As far as the voltage goes, I agree, you wouldn't want to go much below 12V for your existing arrangement using 5 of those 2.2V LEDs in each series string. To work with a lower voltage, you'd have to reduce the number of LED's in each string. And that would mean adding more strings to keep the total number of LEDs the same.

Ohhh I thought i had the whole ciruit wrong besides the led wiring setup. But I found something that might work, but i really want to make my own. This is what i found IF i did buy one but not sure, http://www.reuk.co.uk/buy-12-VOLT-RE...-WITH-FUSE.htm. But I continued to look on their site and found this voltage regulator, http://www.ti.com.cn/cn/lit/ds/symlink/lm2940-n.pdf, now it has a .5v dropout and I believe it can handle up 26v. I would like your thoughts because people are saying you know what your talking about and i believe them!

Also if it is and if u have the time could you make a circuit diagram of what i would need to make and o it properly? I would greatly appreciate the help!