I have the Vans 2-color (Red/White) LED strip. It has three wires; Red/White/Black. I assume that the Red powers the red, white the white, and black is the common ground to both.
To control each separately on a dimmer with the GAD27 it would be necessary to have a separate ground for each, since the GAD27 acts as the PWM ground point, and isn't the power source for the circuit. But there is just one ground wire; so the two go up and down together when the ground is the PWM sink.
Is it possible to connect a separate ground for the red and the white lights, or am I stuck as I suspect and can't really use this with two dimmers? One option would be to have a red strip and a white strip; wasting what I have. Another option is to put a controller in and drive the controller with the PWM output (also wasteful).
I've read that many G3X users control this red/white strip with their pots but it seems like it won't work when they share a common ground.
To control each separately on a dimmer with the GAD27 it would be necessary to have a separate ground for each, since the GAD27 acts as the PWM ground point, and isn't the power source for the circuit. But there is just one ground wire; so the two go up and down together when the ground is the PWM sink.
Is it possible to connect a separate ground for the red and the white lights, or am I stuck as I suspect and can't really use this with two dimmers? One option would be to have a red strip and a white strip; wasting what I have. Another option is to put a controller in and drive the controller with the PWM output (also wasteful).
I've read that many G3X users control this red/white strip with their pots but it seems like it won't work when they share a common ground.