Design of control system of brushless DC motor based on TMS320F2812

In this paper,the control system of brushless DC motor based on TMS320F2812 is given.The rotor position measure circuit,posture current measure circuit,drivers circuit.and safeguard circuit are discussed detailedly,and the corresponding hardware circuit is preseened.In the three loop of control system,a fuzzy PI controller in position controller loop and a Fuzzy PID controller with self-adjusting parameters is adopted in the speed outer loop and a current hysteresis controller is adopted in the current inner loop.This design project have a trait of simple circuit、strong reliability and a high applications values.At the same time, the reasonability and validity have been testified by the test results.