Hello,
For a high school project, I have to design a working induction motor.
I have chosen to use an Arduino Uno to power solenoids/electromagnets in such a way that i can create a rotating magnetic field in order to spin a rotor.
I'm using a solderless breadboard alongside transistors and an external DC power supply with 4 phases (creating 4 pairs of electromagnets from copper wire).
The Arduino Uno would be sending a pwm signal to the gate/base of a BJT or MOSFET which will allow different amounts of current to flow from the power supply through the BJT/MOSFET into the solenoids creating the 'rotating magnetic field' effect.
(In other words, the Arduino Uno sends a pwm signal to a BJT/MOSFET to commutate the solenoids)
This motor is similar to a brushless DC motor, however the rotor of my induction motor cannot be made from magnets.
Attached is my Arduino sketch.
My question is: What voltage/current ratings should my power supply be, should i be using a MOSFET or a BJT?
Any advice would be greatly appreciated. Thanks.
Induction_Motor_2.0.ino (1.17 KB)