Sangshin Kwak

Papers

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About

Sangshin Kwak is a leading researcher in power electronics and wireless energy systems, with a focus on advancing mobile robotics through efficient power delivery. His work centers on two key areas: high-frequency wireless power transfer (WPT) and hybrid power supply architectures for robot actuators. In his highly cited 2014 paper (11 citations), Kwak pioneered a magnetic resonant coupling WPT system for robot vacuum cleaners, demonstrating how resonant coil size can be optimized by adjusting frequency—a breakthrough that enables compact, cord-free operation for household robots. More recently, his 2021 study (6 citations) introduced a hybrid power supply system that integrates multiple voltage buses with supercapacitors, using a multi-tasking control scheme to reduce component count while improving transient response for mobile robots. This work addresses critical challenges in robot motor control, balancing energy storage and delivery for agile performance. Kwak’s contributions have practical implications for consumer robotics and industrial automation, earning recognition for reducing system complexity without sacrificing reliability. His research continues to shape the future of autonomous machines, making power systems smarter, smaller, and more responsive.