A High-precision Current Sense Circuit with Trimming for DC-DC Converts

摘要：

　　A high-precision current sense circuit with trimming is proposed to realize the over-current protection of the power management chip and improve its conversion efficiency.Based on solving the problem of voltage offset and current inrush caused by process deviation,this circuit can detect the value of the inductor current accurately.By designing the bandgap reference circuit and the reference voltage bias network,the required stable reference voltage and bias current can be obtained.The trimming bit selection circuit can realize the trimming function.This circuit is designed with TSMC 180nm 1P3M GEN2 process,and all circuits are verified by Cadence Spectre.

作者: Ning Duan Shulin Liu Xiangdong Zhu Jinjun Pei Haipeng Zhu

作者单位: School of Electrical Engineering and Control Engineering,XUST,Xian 710054,China Xian Aerospace 772 Institute,Xian 710000,China

会议类型: 国际会议

会议名称: 2018 2nd International Conference on Electronic Information Technology and Computer Engineering (EITCE 2018)(2018第二届电子信息技术与计算机工程国际会议)(EITCE2018)

会议地点: 上海

会议语种:英文

页码: 1-4

在线出版日期: 2018-10-12（万方平台首次上网日期，不代表论文的发表时间）