Adaptive Hysteresis Window Control (AHWC) Technique for Hysteretic DC-DC BUCK Converter with Constant Switching Frequency

Author

Wu, Xiaohui ; Wu, Xiaobo

Author_Institution

Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

This paper presents a new adaptive hysteresis window control (AHWC) technique for hysteretic DC-DC buck converter, which can adaptively adjust the hysteresis window according to input and output voltages to keep the switching frequency constant. This technique was designed and fabricated in TSMC 0.35 Â¿m standard CMOS process. Simulation results showed that by using the proposed AHWC technique, the fast line and load transient responses as well as the constant switching frequency were achieved, as input and output voltages varied.

Keywords

CMOS analogue integrated circuits; DC-DC power convertors; adaptive control; hysteresis; switching convertors; adaptive hysteresis window control; constant switching frequency; hysteretic DC-DC buck converter; size 0.35 mum; standard CMOS process; Adaptive control; Buck converters; Capacitors; Hysteresis; Paramagnetic resonance; Programmable control; Switching converters; Switching frequency; Very large scale integration; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5448511

Filename

5448511