[1]朱卓娅,魏同立.一种用于锂离子电池管理芯片的时钟产生电路[J].东南大学学报(自然科学版),2006,36(6):912-916.[doi:10.3969/j.issn.1001-0505.2006.06.008]
 Zhu Zhuoya,Wei Tongli.Clock generation circuit used in lithium-ion battery management IC[J].Journal of Southeast University (Natural Science Edition),2006,36(6):912-916.[doi:10.3969/j.issn.1001-0505.2006.06.008]
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一种用于锂离子电池管理芯片的时钟产生电路()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第6期
页码:
912-916
栏目:
电路与系统
出版日期:
2006-11-20

文章信息/Info

Title:
Clock generation circuit used in lithium-ion battery management IC
作者:
朱卓娅 魏同立
东南大学电子科学与工程学院, 南京 210096
Author(s):
Zhu Zhuoya Wei Tongli
School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
关键词:
环形振荡器 低功耗 亚阈值
Keywords:
ring oscillator low power weak inversion
分类号:
TN402
DOI:
10.3969/j.issn.1001-0505.2006.06.008
摘要:
设计了一种应用于锂离子电池管理芯片的时钟产生电路.针对应用要求,设计了一个环形振荡器,分析了影响振荡频率精度、输出波形及噪声的因素,并设计了一个无电阻的亚阈值电流偏置电路.电路采用0.6 μm UMC数字电路工艺实现.Hspice模拟结果表明:振荡器的输出标准频率为1.975 kHz; 在各种工艺极限情况下,温度为-40~85 ℃,电源电压1.5~8 V时,振荡频率在1~3 kHz间,满足时钟精度要求.典型情况下,该时钟产生电路的电流消耗仅为340~375 nA.
Abstract:
A clock generation circuit is presented. Based on the application needs a ring oscillator is designed. Factors that affect the oscillator frequency precision, output wave form and noise are analyzed in detail, and a weak inversion current bias circuit without resistors is designed. The circuit is implemented with 0.6 μm united microelectronics corporation(UMC)standard digital process. Hspice simulation results show that the standard frequency output of the oscillator is 1.975 kHz, and the frequency is within 1-3 kHz at all process corners when temperature ranging from -40 to 85 ℃ and supply voltage ranging from 1.5 to 8 V. Therefore it can satisfy the high precision needs. Typically, the current consumption of whole clock generation circuit is only 340 to 375 nA.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 朱卓娅(1972—),女,博士,副教授,zzy@seu.edu.cn.
更新日期/Last Update: 2006-11-20