Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Hyunggun Ma"'
Autor:
Hyunggun Ma1 (AUTHOR) hyunggunma@gmail.com
Publikováno v:
Semiconductors. Dec2019, Vol. 53 Issue 13, p1811-1816. 6p.
Autor:
Woojin Park, Gyeongho Namgoong, Eunho Choi, Bonyoung Lee, Hyunjun Park, Hyunggun Ma, Franklin Bien
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 69:4458-4462
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1448933de34acf6f245bff12578da16e
https://doi.org/10.1109/tcsii.2022.3194154
https://doi.org/10.1109/tcsii.2022.3194154
Autor:
Hyunjun Park, Bonyoung Lee, Franklin Bien, Woojin Park, Eunho Choi, Hyunggun Ma, Gyeongho Namgoong
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 68:2702-2713
This paper presents a wide input range active rectifier using a bipolar-CMOS-DMOS (BCD) process with a high voltage conversion ratio (VCR) and high power conversion efficiency (PCE). The proposed rectifier ensures safe and robust operation under larg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ada01f487baf31a664305ea1f44ba0d
https://doi.org/10.1109/tcsi.2021.3063763
https://doi.org/10.1109/tcsi.2021.3063763
Autor:
Heedon Jang, Franklin Bien, Jongmo Seo, Seungboo Yang, Ramesh Patel, Ki Jin Han, Hyunggun Ma, Seongmun Kim, Jiyun Jeong
Publikováno v:
IET Microwaves, Antennas & Propagation. 14:1222-1228
Glucose monitoring is an important clinical procedure, especially for dialysis patients who need consistent monitoring of their glucose levels. Currently, the most extensively used method for glucose monitoring involves pricking the finger and sampli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d1d152a4ba987c1386de0c613cde51b
https://doi.org/10.1049/iet-map.2019.0617
https://doi.org/10.1049/iet-map.2019.0617
Autor:
Franklin Bien, Kyungmin Na, Eunho Choi, Hyunggun Ma, Kyeongmin Park, Gyeongho Namgoong, Woojin Park, Heedon Jang, Bonyoung Lee
Publikováno v:
IET Power Electronics. 13:1787-1796
This study reports a miniaturised discontinuous conduction mode (DCM) variable on-time (VOT) buck converter providing an output of 1.8 V in the input range of 3–12 V to support applications with large wireless coupling. Conventionally, an additiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cce540ef5c8c2548a9efb1955485fd9
https://doi.org/10.1049/iet-pel.2019.0995
https://doi.org/10.1049/iet-pel.2019.0995
Autor:
Franklin Bien, Seong Mun Kim, Eunho Choi, Kyoungmin Park, Gyeongho Namgoong, Haksun Kim, Hyunggun Ma, Sanghyun Heo
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 67:1224-1228
This brief presents a readout IC with a 20 V high-voltage (HV) transmitter (Tx) and On-Chip Differentially Modulated Time-Interleaved Sensing Method (DM-TISM) in a BCD process for a mutual-capacitive Transparent Fingerprint Sensor (TFPS) in order to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fa4550aba0ea013f061cf7260b15ee6
https://doi.org/10.1109/tcsii.2019.2937541
https://doi.org/10.1109/tcsii.2019.2937541
Publikováno v:
2022 IEEE International Solid- State Circuits Conference (ISSCC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d206c8a2221e36d7ae374827c365ae7a
https://doi.org/10.1109/isscc42614.2022.9731585
https://doi.org/10.1109/isscc42614.2022.9731585
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 66:1207-1211
An instantaneous power consuming level shifter is presented in this brief to increase the dc converter efficiency. The level shifter is used in a high-side power switch driver to remove the external capacitor which is used in bootstrap technique. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8068b3c9e62dd65baff67ce7010ef456
https://doi.org/10.1109/tcsii.2018.2878042
https://doi.org/10.1109/tcsii.2018.2878042
Autor:
Hyunggun Ma
Publikováno v:
Journal of Materials Science: Materials in Electronics. 30:12532-12539
ZnO nanorods were grown on ∼ 50-nm-thick transparent conductive oxide thin films by hydrothermal synthesis. The resistivity of the ZnO films was lowered to 4 × 10−4 Ω cm upon Ga doping. Zinc nitrate hexahydrate, mixed with hexamethylenetetramin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01722c6d241a0f3e2a6650bdd7730f84
https://doi.org/10.1007/s10854-019-01613-5
https://doi.org/10.1007/s10854-019-01613-5
Autor:
Eunho Choi, Bonyoung Lee, Woojin Park, Hyunggun Ma, Gyeongho Namgoong, Hyunjun Park, Franklin Bien
Publikováno v:
IEEE transactions on biomedical circuits and systems. 15(3)
In this paper, a fully integrated active rectifier with triple feedback loops is proposed to enhance power conversion efficiency (PCE) over a wide loading range by calibrating both the gate transition timing and power switch size. The on- and off-tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14f96eefe6829939d4e00bb92a947ff7
https://pubmed.ncbi.nlm.nih.gov/34033546
https://pubmed.ncbi.nlm.nih.gov/34033546