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GaN-based power electronics circuit design

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  • GaN-based power electronics circuits can achieve high-frequency operation

  • The high-frequency operation can dramatically reduce the passive component size

  • Magnetic component design for high-frequency operation (planar transformer and inductor design)

  • Planar core-based magnetics for high power density and low profile converter implementation

  • Analysis of parasitic components in high-frequency operation

  • PCB layout and packaging considerations for GaN-based converters

  • Research for high-efficiency and high-density power solutions

Power electronics for home appliance applications

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  • Power electronics circuit design for home appliances (air conditioners, refrigerators, etc.)

  • High-efficiency and low-noise inverter design for appliance applications

  • Compact and cost-effective power converter design for mass production

  • EMI/EMC-aware circuit design and compliance with regulatory standards

  • Integration of motor drives and power converters for appliance systems

  • Smart and connected appliance systems with embedded control and AI

AI-based power electronics technology

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  • Digital twin for power electronics systems (simulation-to-real validation)

  • Integration of AI with digital twin frameworks for real-time monitoring, prediction, and design optimization

  • Bayesian optimization and reinforcement learning for experimental tuning

  • AI-based EMI/EMS prediction and mitigation techniques

  • AI-assisted optimal design of power converters (topology, parameter tuning, modulation strategy)

  • Data-driven modeling and surrogate modeling for fast simulation and design exploration

  • Applications: smart grid, EV chargers, data centers, renewable energy systems

Capacitive wireless power transfer

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  • Capacitive wireless power transfer based on electric field coupling

  • GaN-based high-frequency operation for improved power transfer efficiency and power density

  • Circuit topology and impedance matching techniques for CPT systems

  • Dynamic wireless charging power converters

  • EMI/EMC-aware design and analysis in high-frequency wireless power transfer

  • Applications: consumer electronics, EV charging, robots, drone systems, and biomedical devices

Power electronics for mobility systems

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  • Power converters for EV charging and discharging systems (on-board charger, fast charger, V2G)

  • Battery cycling systems integrated with impedance analysis (EIS-based diagnostics and monitoring)

  • Multi-port power converters for hybrid energy storage systems

  • High-efficiency, high-power-density converter design for mobility applications

  • Applications: electric vehicles, UAM, robots, energy storage systems, and battery testing platforms

Motor control and drive circuit design

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  • GaN-based motor drive circuit design

  • High-power-density and high-efficiency motor driver circuit design

  • Advanced control techniques for disturbance rejection and periodic disturbance compensation

  • AI-based parameter estimation for motor control

  • Applications: robot actuators, drones, electric vehicles, fuel-cell vehicles, etc.

Kyungpook National University

School of Electronics Engineering

College of IT Engineering

BYEONGCHEOL HAN

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