可调直流稳压电源0v--15v.doc

《电子技术》 课程设计—7月9号 摘要 本文设计的是量程为在0~15V可调的直流稳压电源，其最功率要求15W以上，测量直流稳压电源的纹波系数，并具有过压保护。并且采用三端集成稳压器电路，用输出电压可调且内部有过载保护的三端集成稳压器，输出电压调整范围较宽，设计一电压补偿电路可实现输出电压从 0 V起连续可调，该稳压电源具有性能稳定.结构简单.电压、电流指标精度高.调节方便等优点?。 关键词：整流，稳压，数控，可调，补偿电压，过压保护。 Abstract Is designed in this paper range is between 0 ~ 15 v adjustable dc regulated power supply, its most more than 15 w power requirements, measure the ripple coefficient of dc regulated power supply, with overvoltage protection. Adopted and integrated three-terminal voltage regulator circuit, the output voltage is adjustable and has overload protection integrated three-terminal voltage regulator, a wide range of output voltage, a voltage compensation circuit is designed to achieve continuous adjustable output voltage from 0 V, the regulated power supply with stable performance. Simple structure. The high precision of voltage, current indicators. The advantages of convenient adjustment ist. Keywords: rectifier, regulator, numerical control, adjustable, offset voltage, over voltage protection. 目录 第一章.设计目的..................................2 第二章.总体设计思路..............................2 2.1直流稳压电源设计思路................................2 2.1.1..........................................................2 2.1.2采用三端可调集成稳压器电路的方案..........................3 第三章电路方案及其计算过程........................3 3.1整流电路模块..........................................3 3.2滤波电路模块..........................................6 3.3稳压电路模块.........................................10 3.4补偿电路模块.........................................11 3.5计算过程.............................................11 3.6设计电路原理图.......................................14 第四章软件的仿真与调试...........................14 4.1无补偿电压的MULTISIM仿真与调试......................14 4.2有补偿电压的MULTISIM仿真与调试......................15 4.3纹波系数.............................................16 4.4源程序代码...........................................16 第五章课程设计心的体会...........................16 参考文献.........................................17 附录................