Dj_Greenhouse
Well-known member
Hi everyone,
in this thread I hope to find somebody who can help with building my own LED board. My idea is to build an LED board consisting of different colored LEDs, however, my knowledge on electronics is limited. As far as I am informed, LEDs of different wavelengths use different forward voltages, which should match within one string of LEDs in series. So if you want to use red and blue LEDs you cannot connect them in series because they require very different voltages. These should rather be connected in parallel with different sizes of resistors. This is what I learned from the internet, however, the most examples out there only show how you can connect like 3 LEDs or many LEDs of the same kind in series. How would the design look if you want to build a quantum board consisting of a large number of red, blue, white, far-red, UV LEDs, all mixed? Should all LEDs of similar forward voltage be connected in series strings? That would give a string of red LEDs, a string of blue LEDs, a string of white LEDs etc. Should the voltage of these strings be matched between each other so that all the different colored strings have the same total voltage? Should they then be connected in parallel to each other? How should I choose the LED driver, and do I still need resistors when using a LED driver?
I hope someone has the know-how to explain to me how this works.
thank you and all the best
Dj Greenhouse
in this thread I hope to find somebody who can help with building my own LED board. My idea is to build an LED board consisting of different colored LEDs, however, my knowledge on electronics is limited. As far as I am informed, LEDs of different wavelengths use different forward voltages, which should match within one string of LEDs in series. So if you want to use red and blue LEDs you cannot connect them in series because they require very different voltages. These should rather be connected in parallel with different sizes of resistors. This is what I learned from the internet, however, the most examples out there only show how you can connect like 3 LEDs or many LEDs of the same kind in series. How would the design look if you want to build a quantum board consisting of a large number of red, blue, white, far-red, UV LEDs, all mixed? Should all LEDs of similar forward voltage be connected in series strings? That would give a string of red LEDs, a string of blue LEDs, a string of white LEDs etc. Should the voltage of these strings be matched between each other so that all the different colored strings have the same total voltage? Should they then be connected in parallel to each other? How should I choose the LED driver, and do I still need resistors when using a LED driver?
I hope someone has the know-how to explain to me how this works.
thank you and all the best
Dj Greenhouse