【作者】 刘德民； 刘月乔； 赵志毅；

【Author】 LIU Demin, LIU Yueqiao, ZHAO ZhiyiUniversity of Science and Technology Beijing, Beijing 100083, China

【机构】 北京科技大学；

【摘要】 模块458.20B板计数电路是由80C35单片机控制的计数电路.其电路主要是由信号输人电路,电压比较电路,触发计数等电路组成.根据实际电路分析了各部电路的原理,有助于今后的调试及维修工作。更多还原

【Abstract】 The counter circuit of Mode 458.20B is controlled by 80C35 microcontrollers. It is mainly configurated with inputting circuit, voltage comparator circuit and trigger circuit. According to practical circuit this paper analyzes the principle of each constituent, which will help to adjust and service ahead.更多还原