Chao Fei

Title: Innovations of Chao Fei in Power Conversion Technologies

Introduction

Chao Fei is a prominent inventor based in Blacksburg, Virginia, known for his significant contributions to power conversion technologies. With a total of four patents to his name, he has made remarkable advancements in the field of electrical engineering.

Latest Patents

Chao Fei's latest patents include innovative designs for interleaved converters with integrated magnetics. These three-phase interleaved LLC and CLLC resonant converters utilize a half-bridge configuration on the primary sides, featuring resonant networks that can be coupled in delta-connected or common Y-node configurations. The secondary sides employ full-bridge configurations and are coupled in parallel. Notably, the transformers of the phases are integrated into a single magnetic core, allowing for a change in the interleaving structure between the primary and secondary windings. This integration enables the resonant inductors of the phases to be incorporated into the same magnetic core, utilizing a multi-layer PCB for the windings.

Another significant patent involves a matrix transformer designed for large voltage step-down and high current applications. This transformer achieves improved current sharing uniformity and reduces termination, core, and winding losses. It features a unitary magnetic core structure with sheets of magnetic material and a two-dimensional array of pillars for the windings. The design allows for the magnetic flux density to be reduced by dividing the flux in each pillar into two paths, enhancing the overall efficiency of the transformer.

Career Highlights

Chao Fei is associated with Virginia Tech Intellectual Properties, Inc., where he continues to innovate and develop new technologies in power conversion. His work has been instrumental in advancing the efficiency and effectiveness of electrical systems.

Collaborations

Chao has collaborated with notable colleagues in his field, including Fred C. Lee and Qiang Li. Their combined expertise has contributed to the success of various projects and patents.

Conclusion

Chao Fei's contributions to power conversion technologies through his innovative patents highlight his role as a leading inventor in the field. His work continues to influence advancements in electrical engineering and power systems.