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변영재
Bien, Franklin

변영재

전기전자공학과

Research Interests
Bio-medical IT microsystem;Touchscreen;WPT;Wireless Power Transmission;Automotive applications;Low power RF;생체 내 혈당 모니터링 시스템;터치 스크린 센싱;무선전력전송;통신을 위한 아날로그 디지털 통합회로 설계
Lab Description
Current research activities include (1) Bio-medical IT microsystem that leads to in-vivo glucose monitoring system, (2) Readout and sending circuits for Flexible touch screen panels that lead to transparent fingerprint sensor circuit, (3) Adaptive circuit technology for wireless power transfer for consumer electronics and bio-medical implantable devices, and (4) Low power RF communication circuits for medical implantable devices such as MICS and IR-UWB CMOS circuits.
Researcher ID Research Gate ORCiD Scopus Google Scholar
Previous
Detection of apnea and hypopnea events using a wireless Abdomen-Worn sensor with SpO2 integration File File

Dang, Thi Hang , Min, Hyung-ki , Sung, Nam-hwan , Kim, Seong-mun , Yoon, Heein , Bien, Franklin

Article Issue Date2026-03 View18
Clinical study of an integrated sensor system for detection and classification of obstructive sleep apnea (OSA) File File

Kim, Seongmun , Dang, Thi Hang , Cho, Haewan , Shin, Sungmin , Seo, Seungup , Lee, Sanghyun , Min, Hyungki , Malik, Jagannath , Bien, Franklin

Article Issue Date2025-11 View30
Design of Orientation-Independent Non-Invasive Glucose Sensor Based on Meta-Structured Antenna File File

Jeong, Jae-min , Bien, Franklin , Lee, Jaegon

Article Issue Date2025-07 View21
An Automated Algorihm for Obstructive Sleep Apnea Detection Using a Wireless Abdomen-Worn Sensor File File

Thi Hang Dang , Songmun Kim , Minseong Choi , Sungnam Hwan , Hyungki Min , Bien, Franklin

Article Issue Date2025-04 View23
Arrangement Free Wireless Power Transfer via Strongly Coupled Electrical Resonances File File

Lee, Bonyoung , Kim, Jungho , Jo, Hyunkyeong , Min, Hyungki , Bien, Franklin

Article Issue Date2025-01 View79
A coreless track-type seamless wireless charging system using co-planar wires enabling quasi-free planar movements for mobile logistics robots File File

Jo, Hyunkyeong , Seo, Seoktae , Kim, Jungho , Bien, Franklin

Article Issue Date2024-12 View173
An On-/Off-Time Sensing-Based Load-Adaptive Mode Control of Triple Mode Buck Converter for Implantable Medical Devices File

Park, Woojin , Namgoong, Gyeongho , Choi, Eunho , Bien, Franklin

Article Issue Date2023-06 View113
An ultralow power wearable vital sign sensor using an electromagnetically reactive near field File File

Seo, Seoktae , Jo, Hyunkyeong , Kim, Jungho , Lee, Bonyoung , Bien, Franklin

Article Issue Date2023-05 View154
Minimally Invasive Implant Type Electromagnetic Biosensor for Continuous Glucose Monitoring System: In Vivo Evaluation File

Malik, Jagannath , Kim, Seongmun , Seo, Jong Mo , Cho, Young Min , Bien, Franklin

Article Issue Date2023-03 View145
Real-Time External Compensation System With Error Correction Algorithm for High-Resolution Mobile Displays File

Park, Kyeongmin , Oh, Seunghun , Choi, Dongjin , Shin, Kyeonghan , Cho, Haewan , Bien, Franklin

Article Issue Date2023-03 View126
A 13.56 MHz Wireless Power Transfer System With Fully Integrated PLL-Based Frequency-Regulated Reconfigurable Duty Control for Implantable Medical Devices File

Namgoong, Gyeongho , Park, Woojin , Bien, Franklin

Article Issue Date2022-12 View178
-11 to 7 dBm Power Range, Triple Band RF Energy Harvesting System With 99.9% Peak Tracking Efficiency and Improved PCE File

Choi, Eunho , Namgoong, Gyeongho , Park, Woojin , Kim, Suhwan , Kim, Jiwon , Lee, Bonyoung , Bien, Franklin

Article Issue Date2022-12 View170
A 1.4mW to 119mW, Wide Output Power Range Energy Harvesting System With 2-D Fast MPPT Based on HC for 1k to 50k Illuminated Solar Cell File

Choi, Eunho , Namgoong, Gyeongho , Park, Woojin , Kim, Jiwon , Kim, Suhwan , Lee, Bonyoung , Bien, Franklin

Article Issue Date2022-11 View187
A 94% Peak Efficiency Dual Mode Buck Converter With Fully Integrated On-Time-Based Mode Control for Implantable Medical Devices File

Park, Woojin , Namgoong, Gyeongho , Choi, Eunho , Lee, Bonyoung , Park, Hyunjun , Ma, Hyunggun , Bien, Franklin

Article Issue Date2022-11 View123
Design of an Out-Folded Patch Antenna With a Zeroth-Order Resonance for Non-Invasive Continuous Glucose Monitoring File

Nguyen, Mai Anh , Bien, Franklin , Byun, Gangil

Article Issue Date2022-10 View146
Subcutaneously implantable electromagnetic biosensor system for continuous glucose monitoring File File

Kim, Seongmun , Malik, Jagannath , Seo, Jong Mo , Cho, Young Min , Bien, Franklin

Article Issue Date2022-10 View143
A Real-Time Calibrated Adaptive-ZVS Class-D Power Amplifier for 6.78 MHz Wireless Power Transfer System File

Namgoong, Gyeongho , Park, Hyunjun , Bien, Franklin

Article Issue Date2022-09 View172
17-aF $_{{rms}}$ Resolution Noise-Immune Fingerprint Scanning Analog Front-End for Under-Glass Mutual-Capacitive Fingerprint Sensors File

Park, Kyeongmin , Oh, Seunghun , Heo, Sanghyun , Shin, Sangwoong , Bien, Franklin

Article Issue Date2022-03 View114
A 6.78 MHz, 95.0% Peak Efficiency Monolithic Two-Dimensional Calibrated Active Rectifier for Wirelessly Powered Implantable Biomedical Devices File

Namgoong, Gyeongho , Choi, Eunho , Park, Woojin , Lee, Bonyoung , Park, Hyunjun , Ma, Hyunggun , Bien, Franklin

Article Issue Date2021-06 View126
3-12-V Wide Input Range Adaptive Delay Compensated Active Rectifier for 6.78-MHz Loosely Coupled Wireless Power Transfer System File

Namgoong, Gyeongho , Choi, Eunho , Park, Woojin , Lee, Bonyoung , Park, Hyunjun , Ma, Hyunggun , Bien, Franklin

Article Issue Date2021-06 View195
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