具有防止过流误判断功能的LD驱动电源的设计  

Design of LD driver with function of avoiding wrong juudgment for over-current

作　　者：王志鹏[1] 张新英[1] 赵曾伟[1] 宋海飞[1] 毛海涛[1] 王庆国[1] 

机构地区：[1]河南大学物理与电子学院,河南开封475004

出　　处：《激光与红外》2009年第8期865-867,共3页Laser & Infrared

摘　　要：研制了一种新型的基于单片机和FPGA控制的半导体激光器(LD)驱动电源,该电源通过采用越限计数的方法实现过流保护,有效地消除了宽幅大脉冲电流干扰,具有防止过流误判断和失效保护的功能,从而保证LD工作的连续性、可靠性。A novel LD driver controlled by single-chip microcomputer and FPGA is designed, which achieves over-current protection by taking count of spillage, and it can effectively eliminate the interference of large current with great pulse width, and has functions of avoiding wrong judgment for over-current and disabled protection, so it makes LD to run continuously and reliably.

关 键 词：半导体激光器 过流保护 越限计数 

分 类 号：TN248.4[电子电信—物理电子学]