LLC Resonant Converter With Adaptive Link-Voltage Variation for a High-Power-Density Adapter

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The output voltage of an adapter for a laptop computer should vary according to the load current in order to supply power to the computer. To satisfy this requirement, an LLC resonant converter with an adaptive link-voltage-variation (ALVV) scheme is proposed in this letter. The proposed ALVV scheme helps the LLC resonant converter to operate at a nearly constant resonant frequency and also allows for the optimal design of the converter. High power density and high efficiency can therefore be obtained. The proposed LLC resonant converter with the ALVV scheme is analyzed theoretically and verified experimentally.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2010-09
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON POWER ELECTRONICS, v.25, pp.2248 - 2252

ISSN
0885-8993
DOI
10.1109/TPEL.2010.2050906
URI
http://hdl.handle.net/10203/97539
Appears in Collection
GT-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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