提高LED型激发光源驱动电路性能的措施  

Techniques of performances improvement of LED light source for instruments

作　　者：刘振方[1] 胡亚平[2] 张文超[1] 

机构地区：[1]辽宁石油化工大学信息与控制工程学院,辽宁省抚顺市113001 [2]上海大学高等技术学院,上海市200436

出　　处：《医疗卫生装备》2007年第4期70-72,共3页Chinese Medical Equipment Journal

摘　　要：论述了用于检测仪器激发光源的LED恒流和恒功率驱动电路的原理和特点,分析了它们的稳态特性和动态特性,提出了改进LED激发光源驱动电路精确性和稳定性的措施。This paper introduces the principle and characteristics of the LED constant-current and constant-power drive circuit for instrument＇s excitation light source. It also analyzes the steady-state and dynamic performances of the drive circuits. At last, it discusses the improving measures of the precision and stability for the drive circuit of LED excitation light source.

关 键 词：LED驱动 恒流驱动 恒功率驱动 

分 类 号：TM923[电气工程—电力电子与电力传动]