Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/720
Title: Spurious modulation on current-mode controlled dc/dc converters : an explanation for intermittent chaotic operation
Authors: Wong, Siu-chung
Tse, C. K. Michael
Tam, Kam-chun
Subjects: Switching power converters
Current-mode control
Intermittent chaos
Issue Date: 2004
Publisher: IEEE
Source: Proceedings of 2004 IEEE International Symposium on Circuits and Systems, May 23-26, 2004, Vancouver, British Columbia, Canada, p. V-852-855.
Abstract: In this paper, we explain the mechanism that causes "intermittent" instability and chaos in a current-mode controlled switching converter. The circuit model used to study the phenomenon incorporates a coupling process through which a spurious signal is coupled to the current sensing and ramp compensation circuitry, resulting in a modulation of the compensation slope which causes the system to become unstable intermittently. We describe a way to find the parameter boundaries where intermittent chaotic operation emerges.
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Type: Conference Paper
URI: http://hdl.handle.net/10397/720
ISBN: 0-7803-8251-X
Appears in Collections:EIE Conference Papers & Presentations

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