Switching frequency dependent averaged models for PWM DC-DC converters

Author

Lehman, Brad ; Bass, Richard M.

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA

Volume

11

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

89

Lastpage

98

Abstract

This paper introduces a new averaging method for PWM DC-DC power converters which yields averaged models that are switching frequency dependent. The new models are obtained by using periodic ripple functions to improve the averaging approximation. Two important benefits are the correction of DC offset error in steady-state and the modeling of switching frequency effects on closed-loop performance and stability

Keywords

DC-DC power convertors; PWM power convertors; approximation theory; closed loop systems; switching circuits; DC offset error correction; PWM DC-DC power converters; averaging approximation; circuit modelling; closed-loop performance; periodic ripple functions; stability; steady-state; switching frequency dependent averaged models; Circuits; DC-DC power converters; Error correction; Power electronics; Pulse width modulation; Pulse width modulation converters; State-space methods; Steady-state; Switching converters; Switching frequency;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.484421

Filename

484421