Title :
A new analysis technique for fast transient power conversion system based on sigma-delta modulator
Author :
Capponi, G. ; Livreri, P. ; Di Blasi, G.M. ; Marino, F. ; Cannella, E.
Author_Institution :
Dept. of Electr. Eng., Palermo Univ., Italy
Abstract :
In this paper, we propose a completely digitally controlled dc-dc converter based on PFM technique, obtained with a sigma-delta (/spl Sigma//spl Delta/) modulator. For the /spl Sigma//spl Delta/ modulator, a transfer function is proposed according to the new method. The results in terms of stability, in Matlab/Simulink/spl reg/ environment (MathWorks Inc.), show good agreement between the analysis and the simulation.
Keywords :
DC-DC power convertors; digital control; power conversion; power engineering computing; sigma-delta modulation; transfer functions; Matlab/Simulink/spl reg/; PFM technique; digitally controlled dc-dc converter; fast transient power conversion system; sigma-delta modulator; transfer function; Control systems; Delay effects; Delta-sigma modulation; Digital control; Digital modulation; Power conversion; Power generation; Pulse width modulation; Pulse width modulation converters; Transient analysis;
Conference_Titel :
Telecommunications Energy Conference, 2003. INTELEC '03. The 25th International
Conference_Location :
Yokohama, Japan
Print_ISBN :
4-88552-196-3
