用于电池管理系统的Sigma-Delta ADC模型优化设计及研究
The optimized design and research of Sigma-Delta ADC modulator applied in battery management system
李斌桥 1陈莞 1高静1
作者信息
- 1. 天津大学电子信息工程学院,天津300072
- 折叠
摘要
针对用于电池管理系统中数模转换器的高精度要求以及Sigma-Delta ADC的适用特点,提出了一种加入零点优化的单环三阶前馈调制器结构以及适用于本系统的低功耗数字滤波器模型,通过噪声传输函数设计三准则和信号频谱分析给出具体设计及仿真参数,经验证该模型达到系统所需16位有效分辨率要求且易于电路实现.
Abstract
Based on the requirement of high precision of ADC applied in the Battery Management System(BMS) and the application features of Sigma-Delta ADC,a third-order single-loop feedforward Delta-Sigma Modulator with optimization of the zeros and applicative digital decimation filter with low power are proposed in this paper.The designed parameters are presented by three criteria of NTF and signal spectrum analysis.It has been proved that this modular can reach the requirement of 16 bit effective resolution and is easy to implement the circuit.
关键词
电池管理系统/Sigma-Delta调制器/抽取滤波器Key words
BMS/sigma-delta modulator/decimation filter引用本文复制引用
基金项目
天津市科技支撑计划重点项目(09ZCKFGX00900)
天津市滨海新区科技计划项目(2011-BK120033)
出版年
2013
NETL
NSTL
维普
万方数据