Modeling of the Control Behavior of Current-Mode Constant On-Time Boost Converters

被引：8

作者：

Hsu, Yu-Chien ^{[1
]}

Chen, Dan ^{[1
]}

Hsiao, Sheng-Fu ^{[1
]}

Cheng, Hung-Yu ^{[2
]}

Huang, Chun-Shih ^{[2
]}

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan

[2] Richtek Technol Corp, Hsinchu 30288, Taiwan

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2016年 / 52卷 / 06期

关键词：

Boost converter; compensation design; current-mode constant on-time (CMCOT) control; damping ratio; describing function approach; output impedance; DESIGN;

D O I：

10.1109/TIA.2016.2597280

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A constant on-time (COT) controller for dc converters has received much attention recently because of its unique feature of high light-load conversion efficiency. In this paper, a control model is developed for the boost converters with the current-mode COT controller. Models are developed for predicting the loop stability and the step-load transient response. Based on the model, a compensation design is proposed to achieve desired stability margin and step-load transient response. Simulations and experiments are used to verify the model.

引用

页码：4919 / 4927

页数：9

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