The effects of magnetic components losses on the dynamics of coupled-inductors SMPS

Author

Pinola, L. ; Ticozzi, M. ; Varoli, V.

Author_Institution

Politecnico di Milano, Italy

fYear

1992

fDate

29 Jun-3 Jul 1992

Firstpage

1331

Abstract

An original Z transform-based algorithm is used to develop a fast and accurate tool for the dynamic analysis of switch-mode power converters and to achieve insight into the effect of each parasitic. It is shown that iron losses can be neglected without impairing the compliance in the analysis of all the single-inductor converters and also of the two-inductor converters without magnetic coupling. These losses must be included in the modeling of coupled inductor converters, since their effect on the control-to-output gain can jeopardize the feedback loop stability. Experimental data for a low-power prototype are reported

Keywords

Z transforms; losses; network analysis; power convertors; stability; switched mode power supplies; SMPS; Z transforms; algorithm; control-to-output gain; coupled inductor; dynamic analysis; feedback loop stability; iron losses; magnetic components losses; modeling; parasitic; switch-mode power converters; Algorithm design and analysis; Couplings; Feedback loop; Inductors; Iron; Magnetic analysis; Magnetic losses; Prototypes; Stability; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1992. PESC '92 Record., 23rd Annual IEEE

Conference_Location

Toledo

Print_ISBN

0-7803-0695-3

Type

conf

DOI

10.1109/PESC.1992.254722

Filename

254722