A novel linear-nonlinear technique for fast transient buck converter

Author

Saad, Mohamed ; Orabi, Mohamed ; Hasaneen, El-Sayed ; Lotfi, Ashraf

Author_Institution

APEARC, South Valley Univ., Aswan, Egypt

fYear

2011

fDate

9-13 Oct. 2011

Firstpage

1

Lastpage

6

Abstract

Modern Portable devices require high performance Power Management Integrated Circuits (PMICs) for powering it. Old requirements for PMICs were high efficiency and small footprint area. However there are some applications that are also sensitive for the output voltage deviations due to sudden step-up and step-down load change. A novel nonlinear control technique that can be used side-by-side with the conventional voltage-mode linear control is proposed here. The new technique minimizes both undershoot; overshoot percentages and the transient time. It is proven by results that this new technique can help in using smaller output capacitors C_o which save the PCB area.

Keywords

capacitors; nonlinear control systems; power convertors; power integrated circuits; printed circuits; voltage control; PCB area; fast transient buck converter; linear-nonlinear technique; nonlinear control; output capacitors; output voltage deviations; portable devices; power management integrated circuits; step-down load change; step-up load change; transient time; voltage-mode linear control; Monitoring; buck converter; fast transient; linear; nonlinear; overshoot; undershoot;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International

Conference_Location

Amsterdam

ISSN

2158-5210

Print_ISBN

978-1-4577-1249-4

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2011.6099810

Filename

6099810