800 V-48 V Power Conversion and Its Diagnostics - IEEE Power Electronics Society

Date: 15/01/2026

Time: 9:00 am

Presenter: Jong-Won Shin

Abstract: (This webinar is sponsored by PELS TC 4.) High voltages such as 800 V for propulsion and 48 V for auxiliary loads are preferred in modern electrified vehicles (EVs) to decrease the weight of copper as well as conduction loss. This webinar introduces two active-clamp DC-DC converters for 800 V-48 V conversion with high power density and high efficiency. And to extend the discussion to prognostics and health management (PHM), FET on-state monitoring circuits design and operation are presented. These circuits are to predict the remaining useful life (RUL) of FET devices in the 800 V-48 V converter and improve the reliability of power conversion system in EVs.

Jong-Won Shin (Senior Member, IEEE) received the B.S. and Ph.D. degrees in electrical engineering from Seoul National University, Seoul, South Korea, in 2006 and 2013, respectively. From 2013 to 2015, he was a Postdoctoral Researcher with Virginia Tech, Blacksburg, VA, USA. From 2015 to 2018, he was a Senior Scientist with the Electronics Research Department, Toyota Research Institute of North America, Ann Arbor, MI, USA. He was with Chung-Ang University, Seoul, South Korea, as an Assistant Professor from 2018 to 2022 and as an Associate Professor from 2022 to 2024. In 2024, he was with Seoul National University, Seoul, South Korea, where he is currently an Assistant Professor with the Department of Electrical and Computer Engineering. From 2021 to 2024, he was a Visiting Associate Professor with Nagoya University, Nagoya, Japan. He published more than 30 journal papers and registered more than 20 patents in United States. His research interests include power conversion, energy management, and power semiconductor packaging.