faisal78
Member level 3
Hello
I am designing a charlieplexing LED drive scheme using an Arduino board.
Connection are something similar to the above.
LED1/2/3/4 are all RED LEDs with a Vf of ~2v.
LED 5/6 are BLUE LEDs with a VF of 3.6v.
All LED source is driven from 5V supply.
In theory, when I am driving LED5 to be turned ON, there should also be a leakage path through LED1/3 because the Vf of the RED LEDs are so low.
Can anybody confirm this?
FOr some odd reason, I am unable to replicate this symptom on my board and was working if that my setup/configuration was wrong.
Any help/clues?
Thanks in advance.
I am designing a charlieplexing LED drive scheme using an Arduino board.
Connection are something similar to the above.
LED1/2/3/4 are all RED LEDs with a Vf of ~2v.
LED 5/6 are BLUE LEDs with a VF of 3.6v.
All LED source is driven from 5V supply.
In theory, when I am driving LED5 to be turned ON, there should also be a leakage path through LED1/3 because the Vf of the RED LEDs are so low.
Can anybody confirm this?
FOr some odd reason, I am unable to replicate this symptom on my board and was working if that my setup/configuration was wrong.
Any help/clues?
Thanks in advance.