Paper Info
Title
Complex Dynamics And Fast-Slow Scale Instability In Current-Mode Controlled Buck Converter With Constant Current Load
Abstract
The complex dynamics and coexisting fast-slow scale instability in current-mode controlled buck converter with constant current load (CCL), operating in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), are investigated in this paper. Via cycle-by-cycle computer simulation and experimental measurement of current-mode controlled buck converter with CCL, it is found that a unique fast-slow scale instability exists in the second-order switching converter. It is also found that a unique period-doubling accompanied by Neimark-Sacker bifurcation exists in this simple second-order converter, which is different from period-doubling or Neimark-Sacker bifurcations reported previously. Based on a nonlinear discrete-time model and the corresponding Jacobian, the effects of CCL and input voltage on the dynamics of current-mode controlled buck converter are investigated and verified theoretically. Fixed point analysis for slow-scale low-frequency oscillation is also given to verify the dynamics and the coexisting fast-slow scale instability.
Year
DOI
Venue
2013
10.1142/S0218127413500624
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
Keywords
DocType
Volume
Bifurcation, constant current load, dc-dc converter, fast-scale instability, slow-scale instability, subharmonic oscillation
Journal
23
Issue
ISSN
Citations 
4
0218-1274
0
PageRank 
References 
Authors
0.34
11
3
Name
Order
Citations
PageRank
Guohua Zhou1234.12
Bocheng Bao211919.50
Jianping Xu300.34