Hello i am trying to create a PID system with arduino and motor and im trying to varry the motor speed as the PV reaches the setpoint....
So the power comes from the arduino (replaced the arduino by a POT for demonstration purposes )and goes to the gate of a MOSFET , but i thaught the MOSFET job is just to switch on and OFF which means that in my point of view the speed of the motor will always be the same as long as the gate is switched on whether its voltage is varying or not .( but i dont know i may be wrong as well). since to me the motor is connected to 12V..
So my question goes like this ,if you change the voltage at the gate with PWM will it change the spped of the motor ?
Thank you very much ....
So the power comes from the arduino (replaced the arduino by a POT for demonstration purposes )and goes to the gate of a MOSFET , but i thaught the MOSFET job is just to switch on and OFF which means that in my point of view the speed of the motor will always be the same as long as the gate is switched on whether its voltage is varying or not .( but i dont know i may be wrong as well). since to me the motor is connected to 12V..
So my question goes like this ,if you change the voltage at the gate with PWM will it change the spped of the motor ?
Thank you very much ....