hello im trying to figure out the best wiring for multiple common cathode rgb led arrays
im using a 24 channel controller that handles 1 amp or 1 watt dissipation per channel (50 20ma leds max?), my power supply is 12 vdc 15 amps.
im trying to make a rectangle rim of 40x16 rgb leds, each color and each side will have its own channel.
i started off with this, but i just realized that its not going to work because the leds are common cathode and i wouldn't be able to wire them in series correct?
the best solution would be a single resistor per led or would it be safe to wire each side in parallel?
if single
reds = 510 ohm
greens/blues = 430 ohm
if parallel
16 reds = 33 ohm
40 reds = 13 ohm
16 greens/blues = 27 ohm
40 greens/blues = 11 ohm
thanks
seesoe
im using a 24 channel controller that handles 1 amp or 1 watt dissipation per channel (50 20ma leds max?), my power supply is 12 vdc 15 amps.
im trying to make a rectangle rim of 40x16 rgb leds, each color and each side will have its own channel.
i started off with this, but i just realized that its not going to work because the leds are common cathode and i wouldn't be able to wire them in series correct?
the best solution would be a single resistor per led or would it be safe to wire each side in parallel?
if single
reds = 510 ohm
greens/blues = 430 ohm
if parallel
16 reds = 33 ohm
40 reds = 13 ohm
16 greens/blues = 27 ohm
40 greens/blues = 11 ohm
thanks
seesoe