Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17671
Title: Cascade controller for DC/DC buck convertor
Authors: Tsang, KM 
Chan, WL 
Issue Date: 2005
Publisher: The Institution of Engineering and Technology
Source: IEE proceedings. Electric power applications, 2005, v. 152, no. 4, p. 827-831 How to cite?
Journal: IEE proceedings. Electric power applications 
Abstract: In order to deal with the increasing demand for good load and supply-voltage regulation of DC/DC convertors, a new cascade controller is proposed. The control of DC/DC buck converter is first decomposed into a primary voltage-control loop and a secondary current-control loop. The cascade controller is then implemented based on the buck-converter settings with the dynamics of the secondary loop much faster than these of the primary loop. A robustness analysis of the cascade controller against load changes and supply changes is presented. Experimental results are included to demonstrate the effectiveness of the proposed control scheme over a conventional single-loop PI controller. The proposed controller can be implemented as a low-cost addon to a conventional single-loop controller. Detail design equations are presented.
URI: http://hdl.handle.net/10397/17671
ISSN: 1350-2352
DOI: 10.1049/ip-epa:20045198
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