Digital controller design for switchmode power converters

TitleDigital controller design for switchmode power converters
Publication TypeConference Paper
Year of Publication1999
AuthorsDuan, Y., and H. Jin
Conference NameApplied Power Electronics Conference and Exposition, 1999. APEC '99. 14th Annual
Pagination967 -973 vol.2
Date Publishedmar.
Keywordsbandwidth, control loop, control system synthesis, digital control, digital controller design, digital design approach, line step change, load step change, lower sampling rate, output transient response, phase margin, power converter applications, power convertors, switchmode power converters, transient response

A thorough and systematic evaluation of different digital control design approaches is presented. The performance of the approaches is compared in terms of both the bandwidth and the phase margin of the control loop, as well as the output transient response subject to line and load step change. Furthermore, the difference of these design approaches under a lower sampling rate is studied. Best digital design approach for power converter applications is identified based on the comparison results


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