Dynamic oversampling ratio sigma-delta modulation for the control of switching power converter

Author

Orcioni, Simone ; D´Aparo, Rocco D. ; Crostella, Giorgio ; Nicoletti, Davide ; Conti, Massimo

Author_Institution

D.I.B.E.T., Univ. Politec. delle Marche, Ancona, Italy

fYear

2011

fDate

15-18 May 2011

Firstpage

2781

Lastpage

2784

Abstract

The common algorithm used to control DC-AC switching power converters is Pulse Width Modulation. This work presents the use of Dynamic Oversamplig Ratio Sigma- Delta modulators for the control of the switches of DC-AC switching power converters. The proposed control algorithm presents the advantage of a reduction of conducted electromagnetic interferences with respect to Pulse Width Modulation. A prototype of a DC-AC switching power converter has been implemented.

Keywords

DC-AC power convertors; PWM power convertors; electromagnetic interference; interference suppression; sigma-delta modulation; switching convertors; DC-AC switching power converter control; control algorithm; dynamic oversampling ratio sigma-delta modulators; electromagnetic interference reduction; pulse width modulation converter; Frequency modulation; Noise; Switched-mode power supply; Switches; Switching frequency; DC-AC converters; sigma-delta modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2011 IEEE International Symposium on

Conference_Location

Rio de Janeiro

ISSN

0271-4302

Print_ISBN

978-1-4244-9473-6

Electronic_ISBN

0271-4302

Type

conf

DOI

10.1109/ISCAS.2011.5938182

Filename

5938182