In the circuit design of DC motor controller, the hardware circuit is designed according to the circuit principle. Through each rotation of the motor, it will go through the infrared tube speed measurement circuit, so as to accumulate, and finally in the 1S time through the different values, you can know the specific size of different speed levels. In a fixed period of time to turn the number of different, different duty cycle, the speed of the infrared tube on the speed of the circuit is different, and finally on the digital tube can be displayed through the software programming speed specific values.
The rotor position of DC motor is very important for the efficient control of BLDC motor. The position of the rotor can be detected by the Holzer sensor connected to the motor or the rotary encoder. These sensor inputs are used for feedback control systems with sensors.
The rotor position can also be estimated by using back EMF voltage information. This feedback control mode does not require the use of sensors and additional wiring. The position or degree evaluator can also be used to calculate the rotor position, the PWM has programmable dead time delay, which can drive high side and low side gate drivers. C2000MCU can also be used to drive the BLDC motor by using trapezoidal or sinusoidal control. The hardware based fault detection system can turn off the system faster without software intervention. These MCU can also be used to implement scalar and vector control techniques.
