三相无刷电机的PWM控制，通过改变下桥臂的占空比来改变电机的转速。-PWM three-phase brushless motor control, by changing the duty cycle under the bridge arm to change the motor speed.

无刷直流电机驱动程序，采用六段换相控制程序，可用于六管三相全桥驱动电路的无刷直流电机控制。-Brushless DC motor driver for the use of six-phase control procedures, can be used for six three-phase full-bridge driver circuit of brushless DC motor control.