Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/37155
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.
URI: http://hdl.handle.net/10397/37155
Appears in Collections:Conference Paper

Show full item record

Page view(s)

9
Last Week
1
Last month
Checked on Feb 19, 2017

Google ScholarTM

Check



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