Search Results - mingkai+mu

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Multiphase Coupled and Integrated with PCB winding for PFC Converters
In this invention, the inductors of multiphase PFC converters are coupled and integrated into one magnetic core. The coupling can improve converter efficiency. With a novel structure, the inductors can be built with PCB winding with similar loss as traditional litz wire inductors. In addition, balance technique is applied to reduce common mode EMI noise....
Published: 2/6/2017   |   Inventor(s): Yuchen Yang, Mingkai Mu, Fred Lee, Qiang Li
Category(s): Electrical
Coupled Inductor for Interleaved Three-level DC-DC Converters and Its Integrated Designs
This disclosure investigates and evaluates coupled inductor in interleaved multiphase three-level DC-DC converters. If non-coupled inductor is used and maintaining the inductance of inductor, multiphase three-level DC-DC converters interleaving operation will increase the inductor current ripple, although the overall current ripple and Common Mode...
Published: 12/22/2014   |   Inventor(s): Mingkai Mu, Sizhao Lu, Yang Jiao, Fred Lee
Category(s): Electrical, Energy, Engineering
High Frequency Loss Measurement Methods for Inductors and Transformers
Inductor and transformer losses are always important concerns for power electronics applications. The converter is less efficient without proper magnetic cores. Point-of-load (POL) converters are pushing for higher switching frequency for integration purposes. Accurate measurements of the loss of these passive components are important to their design....
Published: 9/20/2012   |   Inventor(s): Mingkai Mu, Fred Lee
Category(s): Electrical