【摘要】 介绍了联合收获机控制系统基本结构和原理,给出了基于MC68HC908AZ60的控制系统硬件电路总体设计框架,详细介绍了转速采集电路、以双高端开关器件MC33486为核心的电动机的H桥驱动电路以及MC33289为核心的电磁阀驱动电路,指出了软件开发要点,试验证明所开发的系统满足设计要求。更多还原

【Abstract】 The constituents and operational mechanism of the working parts electric control system are introduced shortly,and its hardware framework based on the MC68HC908AZ60 is presented on the whole.Then the power driver circuit of direct current motor and Solenoid valves,Hall sensor acquisition speed circuit,the main component of the control system are discussed in detail.The result of experiment proved that the design of the system is correct.更多还原