Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Chiuk Song"'
Autor:
Gyeyoung Park, Seungtaek Jeong, Yeonje Cho, Chulhun Seo, Seongsoo Lee, Joungho Kim, Hongseok Kim, Seokwoo Hong, Dong-Hyun Kim, Chiuk Song, Jinwook Song, Kyungjun Cho, Hyunsuk Lee, Junyong Park, Seungyoung Ahn
Publikováno v:
IEEE Transactions on Industrial Electronics. 66:4356-4367
In this paper, we first proposed a novel hybrid loop array (HLA) for low leakage electromagnetic field (EMF) level and high efficiency in a wireless high power transfer system. The proposed HLA effectively enhances the system efficiency and shields l
Autor:
Joungho Kim, Seongsoo Lee, Chiuk Song, Seungtaek Jeong, Dong-Hyun Kim, Hongseok Kim, Junyeop Song, Jae Hak Lee, Jinwook Song
Publikováno v:
IEEE Transactions on Industrial Electronics. 66:4054-4064
In this paper, we designed and demonstrated a smartwatch strap wireless charging system for the first time. First, we designed a flexible printed circuit board (PCB) coil, shielding material, and receiver (Rx) circuit in a watchstrap. In the design p
Autor:
Jaehyoung Park, Jun Fan, Hongseok Kim, Hycksu Kweon, Seungyoung Ahn, Chiuk Song, Jonghyun Park
Publikováno v:
2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE.
The high speed switching buck converter is widely used to reduce the cost and to improve the transient response. However, the switching voltage noise from high speed switching buck converter can be a potential problem such as conducted emission (CE)
Autor:
Yeonje Cho, Chiuk Song, Youngwoo Kim, Hongseok Kim, Dong-Hyun Kim, Seungyoung Ahn, Seongsoo Lee, Joungho Kim, Seungtaek Jeong
Publikováno v:
IEEE Transactions on Industrial Electronics. 65:6839-6849
Wireless power transfer (WPT) technology is a promising way for convenient and safe battery charging without any electrical contact, which may cause an unwanted electric spark or deliver dangerous electric current to the users. When transferring powe
Autor:
Junyong Park, Yeonje Cho, Seongsoo Lee, Sunkyu Kong, Hongseok Kim, Chulhun Seo, Chiuk Song, Dong-Hyun Kim, Joungho Kim
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 60:1001-1009
Current wireless power transfer (WPT) systems have limited charging distance and high induced electromagnetic field (EMF) leakage. Thus, we first proposed a thin printed circuit board (PCB) type hybrid metamaterial slab (HMS) combining two kinds of m
Publikováno v:
2019 International Symposium on Electromagnetic Compatibility - EMC EUROPE.
When transferring power from source to LED matrix, the electromagnetic interference (EMI) noise is generated. Moreover, the dc-dc converter with switching operation contains a wide range of harmonics. Therefore, it is important to predict the EMI noi
Autor:
Joungho Kim, Sunkyu Kong, Hongseok Kim, Jong-Hoon Kim, Jonghoon J. Kim, Jiseong Kim, Seungyoung Ahn, Daniel H. Jung, Chiuk Song
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 58:1194-1206
Wireless power transfer (WPT) technology is an electrically safe and convenient method of charging batteries. WPT technology allows elimination of exposed contacts, which can cause direct electrocution of human. In spite of the great advantages, the
Autor:
In-Myoung Kim, Jonghoon J. Kim, Hongseok Kim, Joungho Kim, Daniel H. Jung, Seungyoung Ahn, Dong-Hyun Kim, Chiuk Song, Young-Jin Kim
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. :1-18
For wireless charging of electric vehicle (EV) batteries, high-frequency magnetic fields are generated from magnetically coupled coils. The large air-gap between two coils may cause high leakage of magnetic fields and it may also lower the power tran
Core-Shared-Repeater (CSR) Coil Scheme for Low EMI and Efficient WPT System in Ultra-Thin Digital TV
Autor:
Jinwook Song, Boogyo Sim, Seongsoo Lee, Seungtaek Jeong, Seokwoo Hong, Chiuk Song, Joungho Kim
Publikováno v:
2018 IEEE Wireless Power Transfer Conference (WPTC).
In this paper, we propose and analyze an ultra-thin digital TV wireless power transfer (WPT) system. We suggest core-shared-repeater (CSR) coils to get higher performance in terms of coil to coil wireless power transfer efficiency (PTE) and lower ele
Autor:
Sunkyu Kong, Joungho Kim, Sukjin Kim, Chiuk Song, Jong Hoon Kim, Daniel H. Jung, Bumhee Bae, Jonghoon J. Kim
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 63:833-846
Wireless power transfer (WPT) technology has recently emerged as an innovative and promising technology, and its electromagnetic compatibility (EMC) has become a significant issue. In this study, we investigated the electromagnetic (EM) radiated emis