文档介绍：摘要
数字脉冲电源,就是采用微处理器等数字电路对脉冲电源中得直流斩波进行控制,并实现数字显示与数字调节的一种脉冲电源。它是当今最为先进的电镀电源,也是电镀电源的发展方向。论文介绍了数字单脉冲电镀电源的基本特性,对它的工作原理进行了较为全面的概述,并详细地介绍了利用程序对电镀电源的控制系统,证明了采用程序控制脉冲电镀电源的优越性。
关键词:数字脉冲,电镀电源,程序控制,单片机
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 munication 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 power's 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
1,绪论
,课题意义
随着科学技术与生产的发展,电子技术在生产生活中应用的越来越多,在社会生活中扮演日益重要的角色其中电镀产品就十分突出。但这些都是由于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、镀层容易出现缺陷以及存在较大内应力等缺陷造成的,这些缺陷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,不能适应当前的社会生产,尤其是精密制造的需要。因此,我们希望能改进电镀技术,从而提高电镀制品的质量。
虽然当今比较成熟而稳定的电镀电源为开关电源,但我们通过查阅相关资料,对电镀生产的最基本原理进行研究,考虑到各方面因素,决定从生产实际进行改革,通过采用先进的电镀电源,达到提高电镀生产的水平的目的,在提高电镀制品质量的同时,也加快了电镀生产的生产效率,并且消除电镀中的种种缺陷。于是,数字单脉冲电源便凭借自身优势,为当今各个方面争相研究、开发的对象。
,国内外发展状况
我国开关式电镀电源技术已有突破性发展,在中小型功率领域已进入推广应用的阶段。但在输出功