|
Very nice set-up Roger.
Michael, reducing supply voltage on its own reduces the overall torque and quite dramatically once the voltage reaches a certain point.
The correct method is using PWM (Pulse Width Modulation). This allows the motor to receive full voltage (for torque) while producing spaces of nothing to reduce speed. It is not perfect and the correct PWM is quite complicated but overall produces a far better result than a simple reduced voltage.
|