PWM and pinout. I did read a thousand times, but I cannot grasp it.sorry,

Lasers
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1

PWM and pinout.

I did read a thousand times, but I cannot grasp it.sorry, just to be sure:

I’ve got a GGR PSU. I will use rightmost L to fire pwm laser, and keeping the POT.

I use a Level shifter.

As I understand, as L is active Low, does my pin need to be PWM inverted?

2

What controller are you using (need to know the source of the PWM)?
Generally:
Yes connect an open drain to the L on the power supply.
Keep the pot.
DO NOT use a level shifter
If you use the open drain you do NOT invert PWM.
What config pin are you using.

Picture of your LPS and controller would help.

3

@donkjr I’ve sent you a pm

4

@Jorge_Robles got it, need a schematic for that board.