1. Small-Signal Analysis and Control Design of Asymmetrical Half-Bridge DC--DC Converters.
- Author
-
Byungcho Choi, Wonseok Lim, Sanghyun Bang, and Seungwon Choi
- Subjects
DC-to-DC converters ,ELECTRIC current converters ,CAPACITORS ,ELECTRIC equipment ,ELECTRIC capacity ,ELECTRONIC circuits - Abstract
This paper presents the small-signal modeling, dynamic analysis, and control design of the asymmetrical half-bridge dc-dc converter that employs a clamp capacitor and a magnetizing inductor to accommodate pulsewidth-modulated operation with asymmetrical duty ratios. The circuit averaging technique is applied to extract the small-signal dynamics of the power stage, and a graphical loop-gain method is used to design the feedback compensation and analyze the closed-loop performance of the converter. The distinctive power-stage dynamics of the converter are addressed and design guidelines for voltage feedback compensation are established. The results of the control design and closed-loop analysis are substantiated by experiments using an experimental converter. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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