Interleaved Inductor-Less Resonant Converters with Auto Transformer

CPES proposed inductor-less resonant converter has high efficiency.  However, the output voltage ripple is huge since it uses the leakage inductor resonating with output capacitor.  This invention solved the ripple problem by interleaving two-phase and use autotransformer to do the voltage averaging.  The simulation result demonstrates that the ripple voltage can be greatly reduced.
Patent Information:
App Type Country Serial No. Patent No. File Date Issued Date Patent Status
US Utility *United States 12/034,229 7,872,886 2/20/2008 1/18/2011 Abandoned
For Information, Contact:
Li Chen
Licensing Associate
Virginia Tech Intellectual Properties, Inc.
(540) 443-9217
Ming Xu
Julu Sun
Fred Lee