So this is what I've done already:
took a PCB board, wired 5 LEDs in series, added a 100 ohm resistor to the positive end. I did this 12 more times so now I have 60 LEDs on the PCB board connected in series of 5 each and one 100 ohm resistor per 5 LEDs.
I want to use this with a power supply that gives 12-18volts. I did not know about this variation in voltage when I started this project and at that time assumed that the power supply would give constant 12 volts. But now I've got to know about the variation.
I asked some of my friends about this issue and here are the replies:
1. Use a PWM
2. Use a resistor
3. Use a transistor (reply 2&3 is from the same guy)
4. Use a voltage regulator.
What shall I do now?
took a PCB board, wired 5 LEDs in series, added a 100 ohm resistor to the positive end. I did this 12 more times so now I have 60 LEDs on the PCB board connected in series of 5 each and one 100 ohm resistor per 5 LEDs.
I want to use this with a power supply that gives 12-18volts. I did not know about this variation in voltage when I started this project and at that time assumed that the power supply would give constant 12 volts. But now I've got to know about the variation.
I asked some of my friends about this issue and here are the replies:
1. Use a PWM
2. Use a resistor
3. Use a transistor (reply 2&3 is from the same guy)
4. Use a voltage regulator.
What shall I do now?