电镀数字脉冲电源控制电路设计精选.doc

电镀数字脉冲电源控制电路设计 摘 要 目前的电镀技术仍存在诸如加工时间长、镀层厚度均匀性差、镀层容易出现缺陷等，这些问题不仅影响到电镀制品的质量，同时还大大限制了电镀技术的应用与发展，因此，我们希望能改进电镀技术。为此本设计设计了一款能够改善电镀质量的电镀电源-数字脉冲电镀电源，该电源以AT89C51单片机为控制核心，控制看门狗电路，按键电路，显示电路，功能控制电路以及与从系统的串口通信，实现对电源的控制；看门狗电路以MAX813L为核心，实现上电复位，手动复位，和电路监控；按键电路采用4*4矩阵键盘；显示电路采用LCD1602实现电源动态的显示；从系统以AT89C2051为核心，控制产生开关管的控制信号；为了减少模拟信号对电路的干扰，在电源电路的设计中使用了光电耦合器，有效的减少了模拟信号的干扰。该系统在理论上能够实现电镀电压可调，脉冲时间、脉冲占空比可调控。 关键词：脉冲,电镀,电源,单片机 Pulse Electroplating Power Supply ABSTRACT The current electroplating technology is still has some problems, such as the processing time is long, the less uniformity of plating thickness, coating has defects, and so on, these problems not only affect the electroplating products quality, but also greatly limits the electroplating technology development and application, therefore, we hope to improve electroplating technology. Therefore this design designs a new electroplating power - plating digital pulse electroplating power that can improve the quality of plating , the power uses a AT89C51 as a control core, that controls watch-dog circuit, key circuits, show circuit , function controls circuit and the serial communication with the second system, realize the control of the power; Watch-dog circuit uses a MAX813L as the core, achieve the manual reset, electric reset, and circuit monitoring; Button circuit uses a 4 * 4 matrix keyboard; Show circuit uses a LCD1602 to display the powers dynamic; The second system uses a AT89C2051 as the core, signals the switch tube; In order to reduce the interference of analog signal interference to the circuit, the design of the power circuit uses a photoelectric couplers. In theory, this system can realize that electroplating voltage is adjustable, pulse time, pulse duty cycle can control. KEY WORDS: pulse, electroplate, power, miniature 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc295305036 摘 要 PAGEREF _Toc295305036 \h I HYPERLINK \l _Toc295305037 ABSTRACT PAGEREF _Toc295305037 \h II HYPERLINK \l _Toc295305038 1绪论 PAGEREF _Toc295