I have a 30watt PSU, output 36Vdc at 840mA providing power to a LED PCB containing three individual output channels (3xFETís) driving LEDís
I have measured the output of each LED channel at 33Vdc @ 178mA, so this gives me a total power into the three LED channels of 17.6watts.
But the PSU input measures 25watts,
The question is how do I balance the system so the input to the PSU is as close to the PCB output of 17.6watts to improve total circuit efficiency
Under the current set up I am only achieving a total system efficiency of 70%.
Would it improve if I fitted each PCB channel with smaller individual PSU modules say limited to 6watts each.
I would be grateful for any input to this question please.
Many thanks, frustrated novice engineer in the UK
What's a PSU?