Name
Title | ||
|---|---|---|
General-purpose ripple-based fast-scale instability prediction in switching power regulators |
Abstract | ||
|---|---|---|
This paper extends the validity of a ripple-based index able to predict the frontier of fast-scale instability bifurcation in switching power converters, for the whole design-space and for different conduction modes. Hitherto a first validation of the index, based on the approximated ripple level in the PWM modulator, was carried out for a basic proportional voltage feedback PWM buck converter and for L, C, fs, Kp parameters. This article has carried out a complete design-space analysis and has found the stability boundary dependence on converter parameters. Besides, the circuit-based approach has been validated through a comparison between the proposed index and the classical analytical methods based in the linearization of the discrete-time nonlinear map. The paper also proposes improved ripple approximations, by obtaining the exact analytic ripple expression for a buck converter derived from Laplace transform. The index is also validated for a buck converter operating in DCM, through time domain simulations and bifurcation diagrams. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/ISCAS.2007.377949 | New Orleans, LA |
Keywords | Field | DocType |
PWM power convertors,bifurcation,circuit feedback,switching convertors,Laplace transform,PWM modulator,conduction modes,discrete-time nonlinear map,fast-scale instability bifurcation,general-purpose ripple-based fast-scale instability prediction,proportional voltage feedback PWM buck converter,ripple approximations,stability boundary dependence,switching power converters,switching power regulators,time domain simulations | Time domain,Nonlinear system,Laplace transform,Control theory,Pulse-width modulation,Electronic engineering,Converters,Ripple,Buck converter,Linearization,Mathematics | Conference |
ISSN | ISBN | Citations |
0271-4302 | 1-4244-0921-7 | 4 |
PageRank | References | Authors |
1.04 | 2 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Enric Rodriguez | 1 | 30 | 5.28 |
| Gerard Villar | 2 | 26 | 7.10 |
| Francesc Guinjoan | 3 | 84 | 20.97 |
| Alberto Poveda | 4 | 49 | 15.30 |