Lyapunov stability designs for switching regulator/low-pass filter system

Author

Brooks, Michael L.

Author_Institution

Litton Data Syst., Van Nuys, CA, USA

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

602

Lastpage

610

Abstract

The second method of Lyapunov is employed to determine quantitatively accurate criteria for asymptotic stability of the fourth-order switching-regulator/low-pass filter system. Modeling the regulator as a linearized negative resistance, this analysis provides alternative stability relationships to those found in the literature and also reveals the limitations of the Routh stability criterion. Design examples are included which ensure system stability and reduce the amplitude of the filter resonant peak (audio-susceptibility constraint)

Keywords

Lyapunov methods; control system synthesis; controllers; linear network synthesis; low-pass filters; power supply circuits; stability; Lyapunov stability designs; Routh stability criterion; audio-susceptibility constraint; input circuit; linearized negative resistance; power supply circuit; resonant peak; switching regulator/low-pass filter system; Circuit stability; Impedance; Low pass filters; Lyapunov method; Power system transients; Regulators; Resonance; Stability analysis; Stability criteria; Voltage;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.42077

Filename

42077