A new hysteresis control buck converter with enhanced feedback ripple

Author

Zhengguang Liu ; Jinbin Zhao ; Keqing Qu ; Fen Li ; Wei Cao

Author_Institution

Coll. of Electr. Eng., Shanghai Univ. of Electr. Power, Shanghai, China

fYear

2014

fDate

5-8 Nov. 2014

Firstpage

972

Lastpage

976

Abstract

A new hysteretic control strategy with output capacitor equivalent series resistance (ESR) ripple compensation is presented. With such compensation, the effect of output capacitor ESR ripple voltage is enhanced. When step load change occurs, feedback of the output ripple adjusts the duty ratio promptly. In result, the proposed control scheme gains faster transient response speed and better steady state than traditional hysteresis without ripple compensation. The steady-state analysis of the control scheme is performed and the excellent performance of the new control strategy is verified by simulation.

Keywords

feedback; power convertors; voltage control; control scheme; control strategy; duty ratio; enhanced feedback ripple; equivalent series resistance; hysteresis control buck converter; hysteretic control strategy; output capacitor ESR ripple voltage; ripple compensation; steady-state analysis; Capacitors; Equations; Hysteresis; Integrated circuit modeling; Steady-state; Transient response; Voltage control; Buck converter; equivalent series resistance (ESR); hysteretic control; ripple compensation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Application Conference and Exposition (PEAC), 2014 International

Conference_Location

Shanghai

Type

conf

DOI

10.1109/PEAC.2014.7037991

Filename

7037991