本应用笔记描述了一种完全可行且高度灵活的软件应用，使用dsPIC30F 来控制无传感器无刷直流（brushless DC，BLDC）电机。 此软件将dsPIC30F 外设广泛应用于电机控制。所实现的无传感器控制算法特别适用于风扇和泵。-The application notes described a completely feasible and highly flexible software applications to control the use of dsPIC30F Sensorless Brushless DC (brushless DC, BLDC) motor. This software will be widely used in dsPIC30F motor control peripherals. The realization of sensorless control algorithm is particularly applicable to the fan and pump.