I have a universal motor 220V 1.5A and want to control its speed.
I made bridge to convert 220V AC to DC and transformer with bridge to get 24V DC.
I connected it like this image as R3 is the motor and R2,R1 is potentiometer. I used mosfet IRF644.
But the motor works with full speed whenever the potentiometer is even if potentiometer is not connected.
So how to solve it ?!
I made bridge to convert 220V AC to DC and transformer with bridge to get 24V DC.
I connected it like this image as R3 is the motor and R2,R1 is potentiometer. I used mosfet IRF644.
But the motor works with full speed whenever the potentiometer is even if potentiometer is not connected.
So how to solve it ?!