A Piecewise Linear Slope Compensation Circuit for DC-DC Converters

作     者：叶强 来新泉 李演明 袁冰 陈富吉 Ye Qiang;Lai Xinquan;Li Yanming;Yuan Bing;Chen Fuji

作者机构：西安电子科技大学电路CAD所西安710071 

基　　金：西安应用材料创新基金资助项目(批准号:XA-AM-200504) 

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

年 卷 期：2008年第29卷第2期

页      码：281-287页

摘      要：To prevent sub-harmonic oscillation and improve the stability and load capacity of the system,a piecewise linear slope compensation circuit is designed. Compared with the traditional design, this circuit provides a compensation signal whose slope varies from different duty cycles at - 40-85℃ ,and reduces the negative effect of slope compensation on the system＇s load capacity and transient response. A current mode PWM Boost DC-DC converter employing this slope compensation circuit is implemented in a UMC 0.6μm-BCD process. The results indicate that the circuit works well and effectively,and the load capacity is increased by 20%. The chip area of the piecewise linear slope compensation circuit is 0.01mm^2 ,which consumes only 8μA quiescent current,and the efficiency ranges up to 93%.

主 题 词：DC-DC converter slope compensation piecewise linear duty cycle 

学科分类：080801[080801] 0808[工学-自动化类] 08[工学] 

核心收录：

D　O　I：10.3321/j.issn:0253-4177.2008.02.017

馆 藏 号：203409588...