The Design of Constant Current Source of High-power Semiconductor Laser Diode Based on ADuC812

摘要：

A design of digital-controlled constant current source for a high-power semiconductor laser diode based on ADuC812 is described. The constant current source used a high-power MOSFET as the current control device and a Hall current sensor as the feedback device of the sample current. The over-current protection circuit and median filter arithmetic in software are designed to ensure stability and safety of laser diode operation. The practical application indicates that the constant current source is safe and reliable to the laser diode, with the linear control of the output current ranged from 0 to 50 Ampere and the 0.1-Ampere precision.

作者: Xianming Xiong Ying Huang Fangrong Hu

作者单位: Institute of Electronic Engineering Guilin University of Electronic Thechnology Guilin, Guangxi, China

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）