基于AVR单片机的激光电源闭环控制系统设计

发布时间：2018-01-14 19:02

  本文关键词：基于AVR单片机的激光电源闭环控制系统设计　出处：《中国测试》2017年03期 　论文类型：期刊论文

  更多相关文章： 激光器驱动电源 驱动电流 温度 负反馈 闭环控制

【摘要】：为使激光器稳定输出,采取控制驱动电流和温度的设计方案,基于AVR单片机设计一种半导体激光器驱动电源控制系统。采用负反馈原理和闭环控制思想分别实现对驱动电流和温度的控制,从而完成高性能半导体激光器的研制。采用AVR作为主控制芯片,以模数、数模等转换芯片作为其外部扩展电路。为保护激光器和其他易损元件,整个驱动电路具有抗电冲击和过流保护等多种功能。通过实验证明:该系统能使激光驱动电路1 h内偏差为0.02%,稳定性良好,温度控制偏差为±0.005℃。该电源控制系统可靠性高,可移植性强,具有较好的应用前景。
[Abstract]:In order to make the laser output stably, the design scheme of controlling driving current and temperature is adopted. Based on AVR single chip microcomputer, a semiconductor laser driving power supply control system is designed. The negative feedback principle and the closed-loop control idea are used to control the driving current and temperature, respectively. In order to complete the development of high performance semiconductor laser, the AVR is used as the main control chip, the analog-to-digital conversion chip is used as its external expansion circuit, and the laser and other vulnerable elements are protected. The whole drive circuit has many functions, such as resistance to electric shock and over-current protection. The experiment shows that the system can make the laser drive circuit with the deviation of 0.02 in 1 h, and the stability is good. The temperature control deviation is 卤0.005 鈩，

本文编号：1424870