NEWS
Congratulations Anthony Buchman, MS
May 14, 2026
Anthony Buchman successfully defended a thesis that could reshape electricvehicle onboard chargers. Titled “PCB-Integrated Matrix Transformer for a High-Power Single-Phase CLLC Resonant Converter with the Novel Application of Circular Orthogonal Parallel Air-gaps,” the work proposes embedding the power transformer directly on a printed-circuit board while controlling its leakage inductance.
Using an extended reluctance model that includes magnetic “core-wall” flux, the design predicts inductance more accurately than conventional methods. A comparison of 3-unit-interface (3UI) and 2unitinterface (2UI) core structures shows the 2UI layout reduces losses for an 11kW converter without increasing footprint. The breakthrough comes from a Circular Orthogonal Parallel (C.O.P.) airgap topology, which boosts peak efficiency from 97.9% (traditional parallel airgap) to 98.3%—a clear advantage for high-powerdensity EV charging.
Professor QiangLi, served as Anthony’s research advisor; his mentorship was instrumental in shaping the study. The results demonstrate that PCBintegrated matrix transformers can deliver compact, lightweight, and highly efficient power conversion—key attributes for fast-charging infrastructure.
Anthony is now taking his expertise to the next level as a Ph.D. candidate at the Fraunhofer Institute for Silicon Technology (ISIT), where he will continue pioneering advanced power electronics solutions.
