Recent content by Coatsie

This is the idea. My question is, can I put the dim+ and dim- from multiple drivers all across one opto and if so, how many? Or do I need a separate opto for each driver? I’m assuming that with the 10v PWM, the 10v is already present because when open, you get full LED, and when shorted, it...

The opto isolator serves as a switch with the emitter and collector on the Dim- and Dim+. The PWM goes to the anode of the opto to open and close the Dim. The resistor is to prevent “full off” of the Dim. I’ve read numerous places that the number of drivers divided into 10K is the value to put...

If you need a 10K resistor across Dim- and Dim+ for 1 driver for “max off” , and 10K / (number_of_drivers), could you PWM 36 drivers with a 270ohm resistor, or is there a limit to the number of drivers with the Dim- and Dim+ to be run in parallel through an opto isolator?