Design and qualification of a 100-kW three-phase SiC-based generator rectifier unit rated for 50 000-ft altitude

J Hu, X Zhao, L Ravi, R Burgos, D Dong… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
Featuring higher blocking voltage, smaller parasitic elements, faster-switching speed, and a
more compact package, wide bandgap (WBG) semiconductor devices like silicon carbide …

Design of a Flying-Capacitor-Based Voltage Divider LLC Resonant Converter for USB-C PD Charger in Aircraft Applications

J Hu, B Wen, R Burgos… - … on Power Electronics, 2023 - ieeexplore.ieee.org
Portable electronic devices have grown dramatically at an incredible speed and include
many new and sophisticated functions. Thanks to the advent of universal serial bus (USB) …

Design and optimization of 2× 211-kW sic-based aircraft propulsion inverter system with high power density and high efficiency

X Zhao, R Phukan, CW Chang… - 2023 IEEE Applied …, 2023 - ieeexplore.ieee.org
The power rating of the motor drive system in more electric aircrafts is continuously
increasing and the Silicon Carbide (SiC) device enables the higher power density and …

A compact integrated DM-CM filter with PCB embedded DC current sensor for high altitude high current applications

R Phukan, X Zhao, CW Chang, D Dong… - … Conference & Expo …, 2022 - ieeexplore.ieee.org
This paper presents a novel multi-turn solution for integrated DM-CM filter used in DC-fed
motor drive system. The proposed solution is targeted for high-current and high-altitude …

Design and demonstration of a 100 kW high-frequency matrix core transformer for more electric aircraft power distribution

Z Zhao, Y Wu, F Diao, N Lin, X Du… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The rapid development of more electric aircraft (MEA) raises the demand for high-power
converters with significant weight and volume reduction for onboard power distribution. The …

Optimized DC-AC EMI filter design for DC-fed high speed SiC-based motor drive

R Phukan, X Zhao, C Chang, D Dong… - 2022 IEEE Energy …, 2022 - ieeexplore.ieee.org
This paper presents a consolidated design procedure for AC and DC electromagnetic
interference (EMI) filter of a high altitude high current based motor drive. A decoupled design …

Electrical insulation design and qualification of a SiC-based generator-rectifier unit (GRU) for high-altitude operation

L Ravi, J Hu, X Zhao, D Dong, R Burgos… - 2021 IEEE Energy …, 2021 - ieeexplore.ieee.org
Silicon Carbide (SiC) devices are highly desirable in aircraft generator-rectifier units (GRUs)
as they can offer significant improvements to the converter system efficiency, power density …

An isolated bi-directional series bridge DC transformer without resonant tank

Y Cao, M Ngo, D Dong - 2022 IEEE Applied Power Electronics …, 2022 - ieeexplore.ieee.org
The series resonant converters (SRC) such as LLC/CLLC are very popular in dc transformer
(DCX) application due to the full load range ZVS, low circulating current and no voltage …

Diamond-window resonant inductor with significant ac flux

C Tu, K Ngo, X Yu - 2023 IEEE Applied Power Electronics …, 2023 - ieeexplore.ieee.org
Resonant inductor with significant ac flux at MHz switching frequency is challenging
because of high core loss and winding loss due to skin and proximity effect. Air gap brings in …

An Enhanced PWM Scheme of Three-Level T-Type Inverter for Loss Balance and Reduction

X Zhao, CW Chang, R Phukan… - 2023 IEEE Applied …, 2023 - ieeexplore.ieee.org
The unbalance loss distribution of the three-level (3-L) T-Type inverter increases the cost
and reduces the overall reliability. A novel loss-balance modulation scheme is proposed for …