Digitally-controlled high-frequency DC-DC buck converter

Author

Abbas, Ghulam ; Condemine, Cyril ; Abouchi, Nacer

Author_Institution

Lyon Inst. of Nanotechnol. (INL), Univ. of Lyon, Lyon, France

fYear

2010

fDate

18-21 July 2010

Firstpage

1

Lastpage

4

Abstract

A through and detailed design procedure and evaluation of two types of digital controllers for a dc-dc buck converter working in Continuous Conduction Mode (CCM) is described in this paper. The converter operates at a switching frequency of 500 KHz. The controller is designed on the basis of “digital redesign” and “direct digital design” approaches. The performance of the approaches is compared in terms of both the bandwidth and the phase margin of the control loop, as well as the output transient response. Matlab/Simulink simulated results validate the design.

Keywords

DC-DC power convertors; direct digital control; Matlab/Simulink; continuous conduction mode; digital controllers; digital redesign; direct digital design; frequency 500 kHz; high-frequency DC-DC buck converter; switching frequency; Bandwidth; Converters; Low pass filters; Steady-state; Switches; Transfer functions; buck converter; component; continuous conduction mode; digital redesign approach; direct digital design;

fLanguage

English

Publisher

ieee

Conference_Titel

Ph.D. Research in Microelectronics and Electronics (PRIME), 2010 Conference on

Conference_Location

Berlin

Print_ISBN

978-1-4244-7905-4

Type

conf

Filename

5587103