Design of an LED driver based on hysteretic-current-control mode in a 0.6μm BCD process

作     者：刘帘曦 朱樟明 杨银堂 

作者机构：Institute of MicroelectronicsXidian UniversityXi'an 710071China 

基　　金：Project supported by the National Natural Science Foundation of China(No.61006028) the Xi'an Applied Materials Innovation Fund, China(No.XA-AM-201010) the National Science Fund for Distinguished Young Scholars,China(No.60725415) 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2012年第33卷第4期

页      码：105-110页

摘      要：Based on the 0.6/zm BCDMOS process a hysteretic-current-control mode white light LED drover wltla high accuracy and efficiency is presented. The driver can work with a 6-40 V power supply, the maximum output current is up to 1.0 A, the maximum switching frequency is up to 1 MHz, the output current error is less than ±5%, and the efficiency is greater than 80%. The circuit details of the high-side-current sensor and high-speed comparator, which greatly affect the accuracy of the whole driver, are emphasized. Then, the simulation and test results of this work are presented.

主 题 词：hysteretic-current-control output-current error high-side-current sensing high-speed comparator 

学科分类：08[工学] 0803[工学-仪器类] 

核心收录：

D　O　I：10.1088/1674-4926/33/4/045005

馆 藏 号：203349789...