Webinar 20th #2: Mitigation of EMI from power converters using spread spectrum technique. скачать в хорошем качестве

Webinar 20th #2: Mitigation of EMI from power converters using spread spectrum technique.

Introduction: A spread spectrum technique (SST) is an effective method to effectively mitigate the electromagnetic interference (EMI) emission from the power converters without any additional cost. It continuously changes the operating frequency of the power converter to increase the bandwidth of the EMI so that it can reduce the peak and quasi-peal values of the EMI. Since the SST induces high output voltage fluctuation of the power converter, the previous research on SST for power converters has been applied to limited topologies, which are not sensitive to the operating frequency deviation, and power converters with low power capability. Besides, the poor output voltage regulation performance caused by the SST becomes more critical to resonant converters because the output voltage of them is more sensitive to the switching frequency variation than other fixed-frequency converters. This webinar is aimed at from the beginner and the experts in power electronics. It will cover the basic concept, the operational principles, and the design methodology of the SST. Besides, it will introduce several pieces of recent research that can improve the output voltage controllability of the power converters with SST. Speaker: Ms Mina Kim received the B.S. degree in electrical and computer engineering in 2015 from Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea, and she is going to receive the Ph.D degree in electronic engineering in 2021 from UNIST. Her main research interests include dc–dc resonant converters, wireless power transfer technology, and power hardware in-the-loop simulation. Ms. Kim is a member of IEEE Power Electronics Society and Korean Institute of Power Electronics (KIPE).