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<TD scope=col width=771>- <A href="http://embedded.eepw.com.cn/">嵌入式</A> -
<A
href="http://embedded.eepw.com.cn/info/articlelist/type/5">设计应用</A></TD></TR></TBODY></TABLE>
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<H1 style="FONT-SIZE: 18px">基于AT89S51单片机的冲床控制器</H1></TD></TR>
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<TD style="BORDER-BOTTOM: #808080 1px dashed" align=middle
height=25>作者:无锡市飞皇电器制造有限公司 龚永彬
时间:2008-10-16 来源: 今日电子 <A
href="http://www.eepw.com.cn/comments/list/id/88715">浏览评论</A></TD></TR></TBODY></TABLE>
<DIV class=contentlabel>
<P> 本文介绍了一种用Atmel89S51单片机仿真PLC控制的方法,设计适合刚性离合器冲床的控制器,介绍了用光电隔离的输入输出电路的基本构成和工作原理,重点介绍了内部键盘显示电路的设计思想,同时给出了冲床控制的电器原理图。</P>
<P> 系统硬件配置以<A class=contentlabel
href="http://www.eepw.com.cn/news/listbylabel/label/AT89S51">AT89S51</A>单片机为核心。<A
class=contentlabel
href="http://www.eepw.com.cn/news/listbylabel/label/AT89S51">AT89S51</A>是一个低功耗,高性能CMOS
8位单片机,片内含4Kb ISP(In-system
programmable)可反复擦写1000次的Flash只读程序存储器,器件采用ATMEL公司的高密度、非易失性存储技术制造,兼容标准MCS-51指令系统及80C51引脚结构,内置看门狗(WDT)电路。</P>
<P> 功能强大的<A class=contentlabel
href="http://www.eepw.com.cn/news/listbylabel/label/AT89S51">AT89S51</A>可为许多嵌入式控制应用系统提供高性价比的解决方案。采用该单片机设计的冲床控制器,具有以下几个特点:</P>