Please wait a minute...
浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (1): 83-87    DOI: 10.3785/j.issn.1008-973X.2013.01.012
计算机技术﹑电信技术     
集成式斜波产生与求和电路的设计实现
代国定1,2, 陈跃1, 杨令1, 袁政1, 黄冲1
1.西安电子科技大学 电路CAD研究所,陕西 西安 710071；2.西安电子科技大学 超高速电路设计与电磁兼容
教育部重点实验室,陕西 西安710071
Design and implementation of integration slope generation
and summing circuit
DAI Guo-ding1,2, CHEN Yue1, YANG Ling1, YUAN Zheng1, HUANG Chong1
1.Institute of Electronic CAD, Xidian University, Xi’an 710071, China; 2. Key Laboratory of High-Speed
Circuit Design and EMC, Ministry of Education, Xidian University, Xi’an 710071, China
 全文: PDF  HTML
摘要：

针对电流模式控制DC/DC变换器固有的不稳定性,提出集斜波信号产生与求和为一体的斜波补偿电路.与传统的斜波产生与求和分离实现的补偿电路相比,该电路基于电容的电荷转移特性,将电流采样信号加在电容的下极板,对电容进行周期性充放电,在上极板实现斜波信号和电流采样信号的叠加.采用该电路不仅可以保证系统的稳定性,而且结构简单,易于实现；结合新的电流限结构,可以消除斜波补偿对最大电感电流的影响.电路基于0-35 μm CMOS工艺设计,仿真和测试结果表明：集成式斜波补偿电路功能正常,性能良好.当输出占空比在15％～80％变化时,峰值电感电流最大值的相对变化量小于5.5%．
Abstract:

A slope compensation circuit which combines the generation and summation of the slope signal was proposed in allusion to the instability of current mode control direct current/direct current (DC/DC) converter. Compared with the traditional compensation method which separates the slope compensation generation and summation, the proposed structure was based on the charge transfer characteristics of the capacitor. With the introduction of the sampling current signal added on the bottom of the capacitor which is charged and discharged periodically by the current, the summing of slope compensation and sampling current signal implemented on the top plate of the capacitor is realized. The presented slope compensation circuit can ensure the stability of the system, and is simple and easily to be implemented. In combination with the novel current limit circuit, the slope compensation effect on the maximum inductor current is eliminated. Based on the 0.35 μm complementary metal oxide semiconductor (CMOS) process, the simulation and test results show that the integration slope compensation circuit has correct functions and good performance. The relative variation of maximum inductor current was less than 5.5% with output duty cycle ranging from 15% to 80%．
出版日期: 2013-01-01
:  TN 433  
作者简介: 代国定(1969-)，男，副教授，从事数模混合集成电路设计的研究. E-mail: gddai@mail.xidian.edu.cn
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章　　

引用本文:

代国定, 陈跃, 杨令, 袁政, 黄冲. 集成式斜波产生与求和电路的设计实现[J]. J4, 2013, 47(1): 83-87.

DAI Guo-ding, CHEN Yue, YANG Ling, YUAN Zheng, HUANG Chong. Design and implementation of integration slope generation
and summing circuit. J4, 2013, 47(1): 83-87.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.01.012    或    http://www.zjujournals.com/eng/CN/Y2013/V47/I1/83

［1］ ROBERT M. Switching power supply topology; voltage mode vs current mode ［M］. Dallas: Texas Instruments Incorporated, 1994．
［2］ RIDLEY R B. A new continuoustime model for current-mode control ［J］. IEEE Transactions on Power Electronics, 1991, 6(2): 271-280．
［3］ YANG C C, WANG C Y,KOU T H. Current-mode converters with adjustable slope compensation ramp ［C］∥Proceedings of IEEE Asia Pacific Conference on Circuits and Systems. Singapore: IEEE, 2006: 654-657．
［4］ 陈光明,曹家麟,汪西川. 峰值电流控制模式BOOST DC/DC变换器的斜波发生器的设计［J］. 上海大学学报：自然科学版,2004,10(4): 357-361．
CHEN Guang-ming, CAO Jia-lin, WANG Xi-chuan. Design and implementation of ramp-wave generator in peak current controlled boost DC/DC converter ［J］. Journal of Shanghai University：Natural Science, 2004, 10(4): 357-361．
［5］ 代国定,胡波,马晓辉,等.提高峰值电流模DC/DC带载能力的限流设计［J］. 华中科技大学学报：自然科学版,2011,39(4): 29-32．
DAI Guo-ding, HU Bo, MA Xiao-hui, et al. Design of peak current limitation for improving load ability in peak current mode DC/DC converters ［J］. Journal of Huazhong Technology University：Natural Science Edition, 2011, 39(4): 29-32．
［6］ 马红波,冯全源.一种低功耗、高性能BICMOS DCDC限流电路的设计［J］. 华中科技大学学报：自然科学版,2007,35(增1): 49-53．
MA Hong-bo, FENG Quan-yuan. Design of a low power, high performance BICMOS DCDC current-limiting circuit ［J］. Journal of Huazhong Technology University:Natural Science Edition, 2007,35(suppl.1): 49-53．
［7］ 徐静平,王虎,钟德刚,等.一种用于PWM变换器的斜波补偿电路设计［J］. 华中科技大学学报：自然科学版,2007,35(9): 6669．
XU Jing-ping, WANG Hu, ZHONG De-gang, et al. Design of a slope compensation circuit for PWM converter ［J］. Journal of Huazhong Technology University: Natural Science Edition, 2007,35(9): 66-69．
［8］ 王红义,来新泉,李玉山.减小DCDC中斜波补偿对带载能力的影响［J］. 半导体学报, 2006,27(8): 1484-1489．
WANG Hong-yi, LAI Xin-quan, LI Yu-shan. Reducing the slope compensation effect on the load capacity of DCDC converters ［J］. Chinese Journal of Semiconductors, 2006,27(8): 1484-1489．
［9］ 陈富吉,来新泉,李玉山. 一种自适应斜波补偿电路的设计与实现［J］.半导体学报,2008,29(3): 593-597．
CHEN Fu-ji, LAI Xin-quan, LI Yu-shan. Design and implementation of an adaptive slope compensation circuit ［J］. Chinese Journal of Semiconductors, 2008,29(3): 593-597．
［10］ MA Feng-fei, CHEN Wei-zen, WU Jin-chuan. A monolithic current-mode Buck converter with advanced control and protection circuits ［J］. IEEE Transactions on Power Electronics,2007,22(5): 1836-1846．
[1] 代国定,徐洋,李卫敏,黄鹏. 高性能分段温度曲率补偿基准电压源设计[J]. J4, 2010, 44(11): 2142-2147.
[2] 杨旸, 赵梦恋, 陆佳颖, 等. 高亮度白光LED驱动控制器设计[J]. J4, 2010, 44(1): 111-117.