LED Dimming 1-10V

Projects General Guidance
1

Hi,

I have Meanwell HLG power supply which supports 3 dimming modes. One of them is the 1 to 10 V signal mode that I would like to use.
The power supply has a Dim+ and a Dim- cable. My "Arduino" is able to Output a 0 to 10 V signal.
I have wired Dim- to "Arduino" GND and Dim+ to my 0 to 10 V analog output pin. The LED is shining but it does not react to my analog signal.
I assume my wiring is wrong, so I would be very grateful for some help :slight_smile:
Below I have attached a schematic of the power supply.

Kind regards,
Tom

HLG-150H-Meanwell____643_3.jpg
HLG-150H-Meanwell____643_3.jpg756×301 26.4 KB

2

Just use an opto coupler to PWM that LED driver.

Opto coupler transistor between Dim(+) and Dim(-), with collector to Dim+.
Opto LED with 1k current limiting resistor can be PWM-ed from an Arduino pin.

Forget about "10volt".
Leo..