工业上对控制系统要求越来越高，高速Ａ／Ｄ芯片的应用也日益广泛。然而，高速Ａ／Ｄ转换芯片运行频率较高，在电路设计和结构安排上有它独特的地方，高速Ａ／Ｄ 转换芯片和高速ＲＡＭ 的价格也比较昂贵。笔者就此类问题结合一个印刷机的寻边控制系统进行论述 Industrial control system requirements are getting higher and higher, high-speed A / D chip applications are also increasingly widespread. However, the high-speed A / D conversion chip operates at a high frequency, and has its unique place in circuit design and structure arrangement. The high-speed A / D conversion chip and high-speed RAM are also expensive. The author of such a problem with a printing machine to find edge control system for discussion