A Magnetically coupled AC/DC Boost Converter with Low Reverse Recovery and Conduction Losses

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A modified boost converter with magnetic coupling is presented to reduce the reverse recovery loss while maintaining low conduction loss of the rectifiers. By utilizing a coupled inductor and a set of diodes, the current passing the boost rectifier is transferred to an auxiliary loop before turn-off, allowing low di/dt for reduced recovery loss. Moreover, the boost inductor is brought inside the bridge rectifier to reduce conduction loss by decreasing the number of conducting diodes during switch turn-off. Experimental results of a 500W prototype are provided to verify the increase in efficiency and validity of the proposed converter.
Publisher
KIPE
Issue Date
2008-06-30
Language
ENG
Citation

2008년 전력전자학술대회, pp.391 - 393

URI
http://hdl.handle.net/10203/161494
Appears in Collection
EE-Conference Papers(학술회의논문)
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