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http://dx.doi.org/10.5207/JIEIE.2008.22.6.034

The Discontinuous Conduction Mode(DCM) Modeling of DC/DC Converter and Critical Characteristic using Average Model of Switch  

Bae, Jin-Yong (특허청)
Kim, Yong (동국대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.22, no.6, 2008 , pp. 34-43 More about this Journal
Abstract
The state-space average model is extended to buck-boost, and buck-boost topology switching mode DC/DC converters and modified to have higher precision without increment of computation. The modified model is used in continuous conduction mode(CCM) switching DC/DC converters and some significant conclusions are derived. This paper discusses the discontinuous conduction mode(DCM) modeling of DC/DC converter and critical characteristic using average model of switch. Average model of switch approach is expended to the modeling of boundary conduction mode DC/DC converters that operate at the boundary between continuous conduction mode(CCM) and discontinuous conduction mode(DCM). Frequency responses predicted by the average model of switch are verified by simulation and experiment. A prototype featuring 15[V] input voltage, 24[V] output voltage, and 24[W] output power using MOSFET.
Keywords
Converter Model; State-Space Average Model; Average Model Of Switch; Continuous Conduction Mode(CCM); Discontinuous Conduction Mode(DCM);
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