Good idea, I got out the multimeter while the o-scope is charging....If you are so convinced that the Meanwell 3 in 1 dimming as deployed in the HLG drivers is PWM output dimming then put a multimeter on the current output and measure the duty cycle when its dimmed and when its not dimmed.
- is it PWM out, is it controlling the "amplitude of the output current" to dim the output or something else.
Duty cycle measures 0.00% from full dim to full power.
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