Will this work??????
#1
Will this work??????
Hello all I was looking to put headlights in drift car. Since I don't want to spend $$$$ on buying a pre-made kit, i'm going to make my own. So my question is, will this set up work???
#2
Anyone?
#3
I dont see why that would not work. Wire it up and see. The most that would happen is you blow one of the bulbs or leds. good luck.
#4
looks like a cool project id like to see it if it does work
#5
love the drawing of the "led" LOL
maybe better to put switch on ground side?
and use resistor to lower the voltage?
maybe better to put switch on ground side?
and use resistor to lower the voltage?
#6
Tech Champion
Going by what info you have provided you ideally need some added series resistance (or diodes) to limit the voltage/current to the LEDs. You have 9V of power but only 6.4V of load.
It might work, depends on how far the LEDs can really go, and what the actual voltage under load of the 9V battery is.
Three LEDs would be close though. Or if you powered the 2 LEDs directly from a 7.2~7.4V main RC battery for example.
It might work, depends on how far the LEDs can really go, and what the actual voltage under load of the 9V battery is.
Three LEDs would be close though. Or if you powered the 2 LEDs directly from a 7.2~7.4V main RC battery for example.
Last edited by Dave H; 01-24-2011 at 12:29 PM.
#8
Tech Master
iTrader: (1)
I've wired up LEDs before and just plugged them directly into my receiver. I had four 3V LEDs in a 2s2p configuration (each set of 2 LEDs wired in series and then the 2 sets wired together in parallel)
Since my ESC powers my rx with around 6V, it worked perfectly. You just need a spare channel (bind slot would work fine)
Since my ESC powers my rx with around 6V, it worked perfectly. You just need a spare channel (bind slot would work fine)
#9
Tech Fanatic
iTrader: (37)
I've wired up LEDs before and just plugged them directly into my receiver. I had four 3V LEDs in a 2s2p configuration (each set of 2 LEDs wired in series and then the 2 sets wired together in parallel)
Since my ESC powers my rx with around 6V, it worked perfectly. You just need a spare channel (bind slot would work fine)
Since my ESC powers my rx with around 6V, it worked perfectly. You just need a spare channel (bind slot would work fine)
http://www.ehow.com/how_4480452_wire-led-lights.html
#10
Tech Adept
Well here is your answer, first you are correct with the switch on the positive side, you should always switch your supply and not the ground, electronics 101 for pure safety reasons, now for current limiting, you have 9V supply but are only using 6.4, that leaves 2.6V@20mA so you take 2.6/0.02 = 130 0hm resistor but realistically any resistor from 120 to 180 ohm will be fine so it should go + into switch into resistor into lEDs into - and you are away laughing.
#11
Tech Fanatic
iTrader: (37)
Good day!
This question was asked in 2 different threads and I gave a schematic in this one.
http://www.rctech.net/forum/electric...will-work.html
This question was asked in 2 different threads and I gave a schematic in this one.
http://www.rctech.net/forum/electric...will-work.html
#12
Check out this site:
http://www.ledcalc.com
Just plug in your voltages and it builds a schematic for you. Very cool!
http://www.ledcalc.com
Just plug in your voltages and it builds a schematic for you. Very cool!