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Power Electronics Based on Wide Bandgap Semiconductors

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (20 July 2026) | Viewed by 545

Editor

Sustainable Energy and Environment Thrust, Function Hub, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511400, China
Interests: power electronics; wireless power transfer; machines and drives; electric vehicle technologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Power electronics is experiencing a revolutionary transformation driven by the rapid adoption of wide bandgap (WBG) semiconductors, particularly silicon carbide (SiC) and gallium nitride (GaN). These next-generation materials surpass conventional silicon in critical performance metrics, unlocking unprecedented efficiency and power density in modern electronic systems. WBG semiconductors exhibit exceptional properties, including ​higher breakdown electric fields, ​superior thermal conductivity, and ​ultra-fast switching capabilities, which collectively enable significant reductions in energy losses, heat dissipation, and system footprint.

The unique characteristics of SiC and GaN are paving the way for ​breakthroughs in high-voltage, high-frequency, and high-temperature applications, making them indispensable in cutting-edge technologies such as ​electric vehicles (EVs), renewable energy systems, aerospace power electronics, and next-generation industrial drives. Furthermore, their ability to operate under extreme conditions while maintaining efficiency positions them as key enablers for ​sustainable energy transitions, smart grids, and electrification initiatives worldwide.

Dr. Wei Han
Guest Editor

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Keywords

  • device technologies
  • packaging and integration
  • ​power converters
  • wired/wireless charging
  • ​thermal management
  • ​renewable energy systems
  • electric vehicles
  • battery management system
  • control and modulation
  • modelling and optimization
  • EMI/EMC

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Published Papers (1 paper)

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Research

24 pages, 1778 KB  
Article
Design-Space Exploration of a SiC Phase-Shifted Full-Bridge Converter for Mobile Charging Stations in Electric Ports Under Joint Source–Load Battery-Voltage Variation
by Jie Qiu, Wenxuan Zhao, Xuxing Duan, Minhui Li and Wei Han
Appl. Sci. 2026, 16(17), 8435; https://doi.org/10.3390/app16178435 - 24 Aug 2026
Abstract
Mobile charging stations can deliver energy at the point of demand, but their isolated battery-to-battery DC–DC stages must accommodate independent source and load battery-voltage variation. This study develops a hierarchical, domain-wide analytical framework for a fixed-hardware 20 kW silicon-carbide phase-shifted full-bridge converter with [...] Read more.
Mobile charging stations can deliver energy at the point of demand, but their isolated battery-to-battery DC–DC stages must accommodate independent source and load battery-voltage variation. This study develops a hierarchical, domain-wide analytical framework for a fixed-hardware 20 kW silicon-carbide phase-shifted full-bridge converter with a four-diode rectifier. The independently varied terminal domain spans 586–840 V at the source and 495–738 V at the load. The framework combines rated-power coverage, constraint-resolved derating, modeled semiconductor-loss screening, analytical commutation-capacitance budgeting, deterministic sensitivity assessment, and selected-point switching-level refinement. For four screened transformer turns ratios, nominal area-based rated-power can reach 95%. However, a three-point leakage-inductance sensitivity changes the nominal ordering at −10%, showing that the sub-one-percentage-point coverage separation does not establish a robust unique ratio. Selected-point commutation-cell and full-converter simulations show that the analytical added-capacitance screening bound is useful for rapid screening but can be optimistic near difficult high-source-voltage and light-load conditions. The full-converter results also retain high-capacitance light-load cases in which target power is not reachable at the phase-shift-domain boundary. The proposed evidence hierarchy therefore supports rapid candidate screening, identifies sensitive boundaries, and directs detailed switching refinement without claiming a universal transformer-ratio optimum or replacing hardware measurements. Full article
(This article belongs to the Special Issue Power Electronics Based on Wide Bandgap Semiconductors)
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