Title :
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
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;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5938182
