Please use this identifier to cite or link to this item:
Title: Interacting bifurcations in switching systems
Authors: Chen, Y
Tse, CK 
Schwarz, W
Qiu, SS
Issue Date: 2008
Source: Proceedings of International Symposium on Nonlinear Theory and Its Applications (NOLTA'2008), Budapest, Hungary, 7-10 September, 2008, p. 337-340 How to cite?
Abstract: We study a class of switching systems whose dynamics are characterized by an inner switching feedback loop and an outer continuous control loop. The loops have two widely separated time scales, performing fast-scale and slow-scale dynamics accordingly. Treating the two time scales separately, the stability of the systems can be studied, with results focusing on fast-scale bifurcation and slow-scale bifurcation. In current-mode controlled switching converters, period-doubling has been identified as fastscale bifurcation whereas Hopf type bifurcation has been found as slow-scale bifurcation. However, in practice, the fast-scale and the slow-scale dynamics are interacting because the inner loop that is responsible for the fast-scale dynamics is actually controlled by the slow-scale outer feedback. This paper investigates the coexisting fast-scale and slow-scale bifurcations in simple dc/dc converters under peak current-mode control operating in continuous conduction mode. Boundaries of stable region, slow-scale bifurcation region, fast-scale bifurcation region, coexisting fast and slow-scale bifurcation region are identified.
Appears in Collections:Conference Paper

Show full item record

Page view(s)

Last Week
Last month
Citations as of Mar 19, 2018

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.