本课题结合无刷直流电机的结构特点，完成控制系统。根据硬件电路设计相应的外围辅助电路，并编辑驱动程序。使控制器具有体积小、功能全、价格低的优点。本课题采用Microchip公司PIC系列单片机16F72作为控制芯片，在降低成本与提高控制性能之间取得较好平衡。根据PIC16F系列单片机的特点设计了系统的控制策略：利用PIC单片机的引脚电平中断控制电机的换相，根据霍尔信号输出6路控制信号驱动电机旋转；利用AD转化功能检测手柄电压，实现给定速度检测，保证响应速度；实现电机正反转转换、启动防冲车、欠压重启电压限制等功能；制定了多项电机保护措施，实现了过流保护、过压保护、欠压保护、过热保护等功能；有详细注释。-Brushless DC motor (BLDC) has the characteristics of simple structure, credible running, easy maintenance and no wastage of excitation. By analyzing the BLDC`s characteristics, this paper has developed a control system. Design the circuit that be attached to existing device. The controller has the advantages of small volume, various function and low price. In this project, 16F72——an PIC-series MCU product of Microchip company has been used. The consideration between low-cost and good-controlling performance has been well balanced by choosing this central-controlling unit.