Hallo all
I need to drive the motor of a window courtain. It is 24V DC and has only two wires. The polarity between the two wires decides the direction of the motor movement.
I thought about using two cheap AC-DC power supplies, both wired to the two terminals of the motor, but with opposite polarity. A simple up-0-down switch would power on one of the supplies, or the other.
This would also have the advantage of not having a power supply always on, as was the case with the original control card, which is broken now.
I just wonder if the presence of the turned-off power supply could affect the functionality of the turned-on one, when the + terminal of one is connected to the - of the other, and the other way around.
Thank you very much
Luigi
I need to drive the motor of a window courtain. It is 24V DC and has only two wires. The polarity between the two wires decides the direction of the motor movement.
I thought about using two cheap AC-DC power supplies, both wired to the two terminals of the motor, but with opposite polarity. A simple up-0-down switch would power on one of the supplies, or the other.
This would also have the advantage of not having a power supply always on, as was the case with the original control card, which is broken now.
I just wonder if the presence of the turned-off power supply could affect the functionality of the turned-on one, when the + terminal of one is connected to the - of the other, and the other way around.
Thank you very much
Luigi