激光器光源脉冲电源子系统设计.docx

PAGE 17 激光器光源脉冲电源子系统设计 通信工程专业 学生 章涛果 指导教师 简磊 【摘 要】为了解决传统激光器电源非线性化实现难的问题，本文设计了一套可用于任意调节脉冲宽度和和占空比的脉冲电源的方案。本套设计方案采用51单片机作为系统主控芯片，搭配LCD显示屏、驱动电路、电流采样电路等以及其它外围I/O设备，通过仿真对方案进行了验证，最终实现了基于单片机的激光器光源脉冲电源子系统的设计。在仿真实验中通过对参数不断的调节可以看到LCD显示屏上数据进行实时变化。通过调节出仿真环境下的电压表也可以看出脉冲曲线随着发生变化，经过对仿真系统的综合测试得出本文所设计的系统达到了设计要求，并且可以实现对频率和占空比的任意调整。 【关键词】激光器 脉冲电源 驱动电路 电流采样 占空比  The Design of LED Lighting 【Abstract】 In order to solve the problem that the traditional laser power supply is difficult to realize the nonlinearity, this paper designs a set of pulse power solutions that can be used to arbitrarily adjust the pulse width and duty cycle. This design scheme uses 51 single-chip microcomputer as the main control chip of the system, with LCD display, drive circuit, current sampling circuit, etc. and other peripheral I/O devices. The scheme is verified through simulation, and finally the laser light source pulse based on the single-chip microcomputer is realized. The design of the power subsystem. In the simulation experiment, you can see the real-time changes of the data on the LCD display by adjusting the parameters continuously. By adjusting the voltmeter in the simulation environment, it can also be seen that the pulse curve changes with it. After a comprehensive test of the simulation system, it is concluded that the system designed in this article meets the design requirements, and can achieve any frequency and duty cycle. Adjustment. 【Keywords】laser; pulse power supply; drive circuit; current sampling; duty cycle  目 录 TOC \o "1-3" \h \z \u 1 绪论 1 1.1 论文研究的背景及意义 1 1.2 国内外研究现状 1 1.3 本文主要研究内容及论文结构安排 1 2 系统方案论证 3 2.1 系统设计方案 3 2.2 主控模块选型 3 2.3 显示模块选型 4 2.4 ADC芯片的选择 5 2.5 设计语言的选择 5 3 理论分析与计算 7 3.1 PWM波计算 7 3.2 采样电阻的计算 7 3.3 A/D转换模块分辨率选择 7 4 硬件电路的设计 9 4.1 单片机 9 4.1.1 单片机的应用 9 4.1.2 单片机最小系统 10 4.1.3 系统时钟电路 10 4.1.4 系统复位电路 11 4.1.5 中断系统 11 4.2 显示模块电路 12 4.3 电流采样电路 13 4.4 按键模块电路 14 5 系统软件设计 15 5.1 系统设计软件 15 5.1