On my project I'm using CREE 162 RGB led's connected Green and Blue 6 in series each, total 26 strings of 6 on each Green, same on Blue. My voltage is 24VDC each Green/ blue led current is 20ma and 3.2v on each led.
for Red string of 9 led's 20ma and 2.2v on each.
They are controlled using PWM.
For each color it is LM3406 device.
By connecting strings parallel do I need limiting resistor on each string? if yes how this affect constant current flow
through the Rsns register and VOUT on the LM3406
If it is possible connect without limiting resistors and what will be the outcome of this.
Thanks,
Ari Hod
