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변영재
Bien, Franklin

변영재

Department of Electrical Engineering(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
A coreless track-type seamless wireless charging system using co-planar wires enabling quasi-free planar movements for mobile logistics robots File

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

Article Issue Date2024-12 View39
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 View30
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 View35
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 View32
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 View31
-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 View44
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 View35
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 View46
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 View28
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 View33
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 View34
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 View51
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 View33
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 View33
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 View25
Metal Surface Guided-Wireless Power Transfer System for Portable Applications With Multiple Receivers File File

Bien, Franklin , Park, Woojin , Lee, Bonyoung , Byun, Gangil

Article Issue Date2021-04 View22
Improvement of dual-glucose sensor specificity for prosthetic vascular grafts based on a calibration scheme File

Jang, Heedon , Kim, Seongmun , Ma, Hyunggun , Patel, Ramesh , Yang, Seungboo , Jeong, Jiyun , Seo, Jongmo , Han, Ki Jin , Bien, Franklin

Article Issue Date2020-09 View24
Bootstrap capacitorless DCM VOT buck converter with dead-time-based off-time calibration for magnetic resonance wireless power transfer File

Ma, Hyunggun , Namgoong, Gyeongho , Choi, Eunho , Park, Woojin , Lee, Bonyoung , Jang, Heedon , Park, Kyeongmin , Na, Kyungmin , Bien, Franklin

Article Issue Date2020-07 View27
A 32-dB SNR Readout IC with 20-Vpp Tx Using On-Chip DM-TISM in HV BCD Process for Mutual-Capacitive Fingerprint Sensor File

Choi, Eunho , Kim, Seongmun , Park, K , Heo, Sanghyun , Ma, Hyunggun , Namgoong, Gyeongho , Kim, Haksun , Bien, Franklin

Article Issue Date2020-07 View32
Free Arrangement Wireless Power Transfer System with a Ferrite Transmission Medium and Geometry-Based Performance Improvement File

Seo, Seoktae , Jo, Hyunkyeong , Bien, Franklin

Article Issue Date2020-05 View27
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