Comparison between state space averaging and PWM switch for switch mode power supply analysis

Author

Moussa, Wisam ; Morris, James

Author_Institution

IBM Corp., Endicott, NY, USA

fYear

1990

fDate

32988

Firstpage

15

Lastpage

21

Abstract

The state space averaging method and the pulse-width-modulation (PWM) switch method for modeling of DC-to-DC converters are reviewed. The methods are compared through the computation and plotting of typical transfer functions of a buck converter. The state space averaging method begins by writing the state equation and the state matrices describing the system, and requires matrix operations for computation of the system transfer functions. It also leads to a canonical model that represents the four basic DC-to-DC topologies. The PWM switch method leads to a simpler circuit analysis of the converter which can be easily simulated using SPICE-like simulation programs

Keywords

nonlinear network analysis; power convertors; pulse width modulation; state-space methods; switched mode power supplies; DC-to-DC converters; PWM switch; SPICE-like simulation programs; buck converter; canonical model; circuit analysis; computation; modeling; nonlinear converter system; plotting; state equation; state matrices; state space averaging; switch mode power supply analysis; transfer functions; Analytical models; Circuit simulation; Computational modeling; Matrix converters; Pulse width modulation; Pulse width modulation converters; State-space methods; Switches; Switching converters; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Southern Tier Technical Conference, 1990., Proceedings of the 1990 IEEE

Conference_Location

Binghamton, NY

Type

conf

DOI

10.1109/STIER.1990.324626

Filename

324626