晶闸管直流稳压电源毕业论文

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1、 摘要 晶闸管直流稳压电源是通过整流桥把交流电转换为直流电的向负载直接 供电的装置。其设计重点是保证有较高的转化效率和输出的直流电压保持稳定。 本文介绍了以晶闸管组成三相桥式整流电路， 用 KJ004 和 KJ041 组成的触发 电路的晶闸管直流稳压电源。该电源大大提高了电流的转换效率和电压的稳定 性， 在一定程度上解决了现有系统存在的问题， 从而提高了系统的整体运行性能。 本文研究电源从主电路入手， 分析了三相桥整流器的输出特性和其所需要的触发 脉冲的特性，确定了主电路和触发电路。从输出电压稳定性方面入手增加了电压 调节器电流调解器和滤波电路等辅助电路。 从保护晶闸管元件方面入手增加了电 压

2、电流保护电路等辅助电路。 本文涉及的电源能够从 10V-100V 连续可调，有较大的调压范围，在扰 动的情况下也能够输出较稳定的电压，能够满足生产和生活需要。 关键词：晶闸管可控硅整流电路；触发电路；稳压电源 本科毕业设计说明书 2 Abstract The thyristor current voltage-stabilized source is an AC-DC converter. Which changes AC to DC by Full Bridge converter .Its designed key point is the higher transformed effci

3、ency and the output DC voltage maintentance is stable . This article introduces a voltage-stabilized source .Which trigger converters is composes with KJ004 and KC41C and its three phase Full bridge controlled rectifier is discomposed with thyristor .This power source greatly enhances the current tr

4、ansformed efficiency and the output Voltage-stabily,has solved the existing system existence problem in the certain degree, and thus enhances the whole systems performance characteristic. This article studies the power to obtain from the main circuit ,analyzes the trigger pulse characteristic which the three phase bridge rectifier input level and its needed to determine the main circuit and the triggert circuit .Obtained from the output voltage stable aspect increased auxilia