毕业论文-基于单片机双路直流稳压可调电源.doc

论文题目：基于单片机双路直流稳压可调电源 专 业：微电子学 本 科 生： 签 名 指导老师： 签 名 摘 要 数控直流稳压电源以其优良的输出特性，广泛应用于各种电子线路中。质量优良的数控电源，能满足电子线路各种要求。因此,数控电源的设计颇为重要。本文主要介绍了基于51单片机数控直流稳压电源的设计过程，分为以下4部分：（1）详细介绍数控直流稳压电源中包含的整流电路、滤波电路、稳压电路、运放电路及保护电路等。（2）设计出了各部分电路、键盘和显示电路的电路图，并完全硬件焊接。（3）给出了系统的软件设计思路及软件流程图。（4）通过硬件制作，实验和分析，设计出的电源能完全满足设计要求，可以对输出电压进行0V~12V的任意调制，并且有过流保护功能。 此外，本设计的直流稳压电源能够适应所带负载的启动性能，电路稳定可靠，且能够输出较大的电流。 关键词：直流稳压电源，单片机，过流保护Subject： Based on SCM dual voltage dc adjustable power Specialty：Microelectronics Name： Wen Xiaogang Signature Instructor：Gao Yu Signature ABSTRACT with its excellent output characteristics, Numerical control dc voltage stabilizer is used in all kinds of electronic circuits widely. Quality control of power electronic circuits, and can satisfy the requirements. Therefore, the design of the control power is important. This paper mainly introduces the 51-series microcomputer based on numerical control dc voltage source of design process, divided into the following four parts: (1) the detailed introduction of nc dc voltage stabilizer contains rectifier circuit, filter circuits, circuit, amplifier and protect circuit, etc. (2) designed circuit, the keyboard and each part of the circuit diagram shows, and complete hardware welding. (3) presented system software design ideas and software flow chart. (4) through the hardware production, experiment and analysis, design of power supply can completely satisfy the design requirements of output voltage, can make the 12V 0V ~ and over-current protection function. In addition, the design of the dc voltage stabilizer which can adapt to bring load start-up performance, stable and reliable, and can be circuit of current output. Keywords：regulated power supply of direct current,Single Chip Micyoco, overcurrent protection 目 录 摘 要 1 ABSTRACT 5 目 录 6 前 言 7 第1章 选题意义 10 1.1 设计要求 10 1.2