An investigation on control strategies for fast transient response of SMPS

Author

Jegandren, J. ; Gobbi, R. ; Athab, Hussain S.

Author_Institution

Fac. of Eng., Multimedia Univ., Cyberjaya

fYear

2008

fDate

12-13 July 2008

Firstpage

110

Lastpage

115

Abstract

This paper presents a thorough literature reviews of control methods to improve transient response in switch mode power supply (SMPS). A fast transient response to a step load change is very essential in a power supply. The transient response can be improved by means of feedback control method. There are two feedback control methods widely used for SMPS that are, voltage mode control (VMC) and peak current mode control (PCMC). A simulation study on these feedback control methods has been done using Matlab/Simulink. It is found that the PCMC helps the SMPS for a faster transient response compared to the VMC. Based on all the reviews a new method is being investigated known as "Voltage Injection Switching Inductor" (VISI) method. This feedback control method provides a better transient response to PCMC. The comparison of these simulation results validates the proposed idea.

Keywords

electric current control; feedback; switched mode power supplies; transient response; voltage control; control strategies; fast transient response; feedback control method; peak current mode control; step load change; switch mode power supply; voltage injection switching inductor method; voltage mode control; Circuit noise; DC-DC power converters; Feedback circuits; Feedback control; Filters; Switched-mode power supply; Switches; Switching converters; Transient response; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Technologies in Intelligent Systems and Industrial Applications, 2008. CITISIA 2008. IEEE Conference on

Conference_Location

Cyberjaya

Print_ISBN

978-1-4244-2416-0

Type

conf

DOI

10.1109/CITISIA.2008.4607344

Filename

4607344