PWM Mod

Thread Starter

knowtankyou

Joined Feb 29, 2016
32

Thread Starter

knowtankyou

Joined Feb 29, 2016
32
sorry dodgy, i didn't explain the whole picture.
This is an LED Driver, and I am going to set the current output to a level appropriate for the LED and I want to add PWM dimming to the unit.
I understand that just adjusting the current level of the LM2596 isn't the best choice because the color can shift when I get down in the 5%-40% light output range.
My reading seem to indicate setting 600ma for a 750ma rated LED is OK but then I need to start PWM dimming to avoid color shift.
The question is how to best achieve PWM with the LM2596 board. I hope to not add a Mosfet if I can avoid it.
thanks and have a great weekend.
 
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