At, 7:44:48 user Giorgos Lazaridis wrote: [reply Giorgos You can connect the output of the arduino at an open-collector transistor circuit.Is there a way to use a single resistor current reference or will I need one for each segment?
At 2 August 2014, 2:56:09 user Ancel wrote: [reply Lazaridis Hi, I'd like to create a 7 segment constant current driver using these transistors.Your presentations are very clear and informative. At 3 September 2014, 6:03:09 user duncan wrote:.Please send some notes of led and led driver then and there At 14 September 2014, 15:15:54 user Kothandapani wrote:.
If one was to use a buck converter to step the V down to 3.2, what option would be best to limit current to 1w LED's. I know most all of your suggestions talk about how the resister is a loss of power.
So i will place this chip against some other LED drivers to see how good it is.
I decided to write this quick tutorial for two reasons: First because there are many people who would like to know more about driving and controlling LED lights, and second because i was provided an excellent LED driver chip from Farnell for test, and i wanted to put it under the microscope.