Browse "School of Electrical Engineering(전기및전자공학부)" by Author Ha, Sohmyung
Showing results 1 to 46 of 46
| 3D-printed Optogenetic Stimulator Integrated with a Recording Channel Oh, Keonghwan; Lim, Jihong; Lee, Hyunjoo Jenny; Ha, Sohmyung, 1st Annual IEEE BioSensors Conference, BioSensors 2023, Institute of Electrical and Electronics Engineers Inc., 2023-07-30 |
| A 0.0046mm2 6.7μW Three-Stage Amplifier Capable of Driving 0.5-to-1.9nF Capacitive Load with >0.68MHz GBW without Compensation Zero Shin, Hongseok; Kim, Jinuk; Jang, Doojin; Cho, Donghee; Jung, Yoontae; Cho, Hyungjoo; Lee, Unbong; et al, 2020 IEEE Symposium on VLSI Circuits, IEEE, 2020-06 |
| A 0.9V 2MHz 6.4x-Slope-Boosted Quadrature-Phase Relaxation Oscillator with 164.2dBc/Hz FoM and 62.5ppm Period Jitter in 0.18μm CMOS Seong, Hoyong; Youn, Donghyun; Choi, Injun; Lee, Junghyup; Ha, Sohmyung; Je, Minkyu, 2023 IEEE Custom Integrated Circuits Conference (CICC), IEEE, 2023-04 |
| A 118.6fJ/Conversion-Step Two-Step Time-Domain RC-to-Digital Converter With 33nF/10MΩ Range and 53aFrmsResolution Seong, Hoyong; Jung, Chongsoo; Youn, Donghyun; Lee, Junghyup; Ha, Sohmyung; Je, Minkyu, 2022 IEEE Asian Solid-State Circuits Conference, A-SSCC 2022, Institute of Electrical and Electronics Engineers Inc., 2022-11 |
| A 133.6TOPS/W Compute-In-Memory SRAM Macro with Fully Parallel One-Step Multi-Bit Computation Choi, Edward; Choi, Injun; Jeon, Chanhee; Yun, Gichan; Yi, Donghyeon; Ha, Sohmyung; Chang, Ik-Joon; et al, 43rd Annual IEEE Custom Integrated Circuits Conference, CICC 2022, Institute of Electrical and Electronics Engineers Inc., 2022-04 |
| A 16-Channel Impedance-Readout IC With Synchronous Sampling and Baseline Cancelation for Fast Neural Electrical Impedance Tomography Suh, Ji-Hoon; Choi, Haidam; Jung, Yoontae; Oh, Sein; Cho, Hyungjoo; Koo, Nahmil; Kim, Seong Joong; et al, IEEE SOLID-STATE CIRCUITS LETTERS, v.6, pp.109 - 112, 2023 |
| A 187dB FoMS 46fJ/Conv. 2nd-order Highpass ΔΣ Capacitance-to-Digital Converter Jung, Yoontae; Oh, Sein; Koo, Jimin; Park, Seunga; Suh, Ji-Hoon; Cho, Donghee; Ha, Sohmyung; et al, 2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits), IEEE, 2023-06-11 |
| A 2.5mW 12MHz-BW 69dB SNDR Passive Bandpass ΔΣ ADC with Highpass Noise-Shaping SAR Quantizers Oh, Sein; Park, Seunga; Jung, Yoontae; Koo, Jimin; Cho, Donghee; Ha, Sohmyung; Je, Minkyu, 2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits), IEEE, 2023-06-11 |
| A 20-MHz 2.3-mW Receiver and a 25-V Transmitter for Ultrasound Capsule Endoscopy Jeong, Kyeongwon; Choi, Jaesuk; Yun, Gichan; Choi, Injun; Son, Jeehoon; Hwang, Jae Youn; Ha, Sohmyung; et al, 2022 IEEE Asian Solid-State Circuits Conference, A-SSCC 2022, Institute of Electrical and Electronics Engineers Inc., 2022-11 |
| A 333TOPS/W Logic-Compatible Multi-Level Embedded Flash Compute-In-Memory Macro with Dual-Slope Computation Choi, Edward Jongyoon; Choi, Injun; Lukito, Vincent; Choi, Dong-Hwi; Yi, Donghyeon; Chang, Ik-Joon; Ha, Sohmyung; et al, 2023 IEEE Custom Integrated Circuits Conference (CICC), IEEE, 2023-04 |
| A 500-MHz Bandwidth 7.5-mV(pp) Ripple Power-Amplifier Supply Modulator for RF Polar Transmitters Kim, Chul; Chae, Chang-Seok; Yuk, Young-Sub; Thomas, Chris M.; Kim, Yi-Gyeong; Kwon, Jong-Kee; Ha, Sohmyung; et al, IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.53, no.6, pp.1653 - 1665, 2018-06 |
| A 600mVPP-Input-Range 94.5dB-SNDR NS-SAR-Nested DSM with 4th-Order Truncation-Error Shaping and Input-Impedance Boosting for Biosignal Acquisition Jeong, Kyeongwon; Yun, Gichan; Ha, Sohmyung; Je, Minkyu, 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022, pp.52 - 53, Institute of Electrical and Electronics Engineers Inc., 2022-06 |
| A 96.5%-Power-Efficiency Hybrid Buck-Boost Photovoltaic Energy Harvester Employing Adaptive FOCV MPPT Control for >98% MPPT Efficiency Across a 10,000× Dynamic Range Hung, Phan Dang; Shin, Hongseok; Park, Yechan; Hoang, Nguyen Kim; Cho, Donghee; Ha, Sohmyung; Kim, Chul; et al, 2022 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2022, pp.200 - 201, Institute of Electrical and Electronics Engineers Inc., 2022-06 |
| A 96.6%-Efficiency Continuous-Input-Current Hybrid Dual-Path Buck-Boost Converter with Single-Mode Operation and Non-Stopping Output Current Delivery Shin, Hongseok; Jang, Doojin; Kang, Gyeong Gu; Kim, Jinuk; Kim, Chul; Ha, Sohmyung; Je, Minkyu, 35th Symposium on VLSI Circuits, VLSI Circuits 2021, Institute of Electrical and Electronics Engineers Inc., 2021-06 |
| A 99.5dB-DR 5kHz-BW Closed-Loop Neural-Recording IC based on Continuous-Time Dynamic-Zoom ΔΣ ADC with Automatic AFE-Gain Control Jung, YoonTae; Kweon, Soon-Jae; Jeon, Hyuntak; Lee, Taeju; Choi, Injun; Jeong, Kyeongwon; Kim, Mi Kyung; et al, 2021 IEEE Asian Solid-State Circuits Conference, A-SSCC 2021, Institute of Electrical and Electronics Engineers Inc., 2021-11 |
| A Frequency-Splitting-Based Wireless Power and Data Transfer IC for Neural Prostheses with Simultaneous 115mW Power and 2.5Mb/s Forward Data Delivery Park, Yechan; Koh, Seok-Tae; Lee, Jeongeun; Kim, Hongkyun; Choi, Jaesuk; Ha, Sohmyung; Kim, Chul; et al, IEEE International Solid-State Circuits Conference (ISSCC), pp.472 - +, IEEE, 2021-02 |
| A High-Efficiency Single-Mode Dual-Path Buck-Boost Converter With Reduced Inductor Current Cho, Donghee; Cho, Hyungjoo; Oh, Sein; Jung, Yoontae; Ha, Sohmyung; Kim, Chul; Je, Minkyu, IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.58, no.3, pp.720 - 731, 2023-03 |
| A Load-Current-Regulating OLED Lamp Driver Using a Hybrid Step-Up Converter with 93.21% Efficiency at a High Conversion Ratio of 4.1 Cho, Donghee; Shin, Hongseok; Park, Hyunwoo; Oh, Sein; Lee, Taeju; Ha, Sohmyung; Kim, Chul; et al, ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference (ESSCIRC), pp.315 - 318, IEEE, 2021-09-13 |
| A Polar-Demodulation-Based Impedance-Measurement IC Using Frequency-Shift Technique With Low Power Consumption and Wide Frequency Range Cheon, Song I; Kweon, Soon-Jae; Kim, Youngin; Koo, Jimin; Ha, Sohmyung; Je, Minkyu, IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.15, no.6, pp.1210 - 1220, 2021-12 |
| A Power-efficient, Wide-frequency-range Impedance Measurement IC Using Frequency-shift Technique Cheon, Songi; Kweon, Soon-Jae; Kim, Youngin; Ha, Sohmyung; Je, Minkyu, 53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021, IEEE, 2021-05 |
A Precise Lesion Localization System Using a Magnetometer With Real-Time Baseline Cancellation for Laparoscopic Surgery Kweon, Soon-Jae; Yun, Woojin; Park, Hyunwoo; Park, Jeong-Ho; Lee, Jung Hoon; Lee, Jin; Je, Minkyu; et al, IEEE ACCESS, v.9, pp.131648 - 131657, 2021 |
| A Process-Scalable Ultra-Low-Voltage 180kHz Sleep Timer with a Time-Domain Amplifier and a Switch-less Resistance Multiplier Jung, Chongsoo; Seong, Hoyong; Choi, Injun; Ha, Sohmyung; Je, Minkyu, 2022 IEEE Asian Solid-State Circuits Conference, A-SSCC 2022, Institute of Electrical and Electronics Engineers Inc., 2022-11 |
| A Process-Scalable Ultra-Low-Voltage Sleep Timer With a Time-Domain Amplifier and a Switch-Less Resistance Multiplier Jung, Chongsoo; Seong, Hoyong; Choi, Injun; Ha, Sohmyung; Je, Minkyu, IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.58, no.10, pp.2675 - 2684, 2023-10 |
| A PVT-Robust AFE-Embedded Error-Feedback Noise-Shaping SAR ADC With Chopper-Based Passive High-Pass IIR Filtering for Direct Neural Recording Jeong, Kyeongwon; Jung, Yoontae; Yun, Gichan; Youn, Donghyun; Jo, Yehhyun; Lee, Hyunjoo Jenny; Ha, Sohmyung; et al, IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.16, no.4, pp.679 - 691, 2022-08 |
| A Scalable Readout IC Based on Wideband Noise Cancelling for Full-Rate Scanning of High-Density Microelectrode Arrays Kim, Jinuk; Shin, Hongseok; Kweon, Soon-Jae; Lee, Seongwook; Ha, Sohmyung; Je, Minkyu, 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), pp.7344 - 7347, IEEE, 2021-11-01 |
| A Self-Powered Wireless Gas Sensor Node Based on Photovoltaic Energy Harvesting Hung, Phan Dang; Park, Yechan; Kweon, Soon-Jae; Lee, Taeju; Jeon, Hyuntak; Koh, Seok-Tae; Cho, Incheol; et al, 35th Symposium on VLSI Circuits, VLSI Circuits 2021, Institute of Electrical and Electronics Engineers Inc., 2021-06 |
| A Single-Mode Dual-Path Buck-Boost Converter with Reduced Inductor Current Across All Duty Cases Achieving 95.58% Efficiency at 1A in Boost Operation Cho, Donghee; Cho, Hyungjoo; Oh, Sein; Jung, Yoontae; Ha, Sohmyung; Kim, Chul; Je, Minkyu, 43rd Annual IEEE Custom Integrated Circuits Conference, CICC 2022, Institute of Electrical and Electronics Engineers Inc., 2022-04 |
| A Synchronous-Sampling Impedance-Readout IC with Baseline-Cancellation-Based Two-Step Conversion for Fast Neural Electrical Impedance Tomography Suh, Ji-Hoon; Choi, Haidam; Jung, Yoontae; Oh, Sein; Cho, Hyungjoo; Koo, Nahmil; Kim, Seong Joong; et al, 2022 IEEE Asian Solid-State Circuits Conference, A-SSCC 2022, Institute of Electrical and Electronics Engineers Inc., 2022-11 |
| A Wide-Bandwidth Ultrasound Receiver and On-Chip Ultrasound Transmitter for Ultrasound Capsule Endoscopy Jeong, Kyeongwon; Yun, Gichan; Choi, Jaesuk; Choi, Injun; Son, Jeehoon; Hwang, Jae Youn; Ha, Sohmyung; et al, IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.58, no.10, pp.2778 - 2789, 2023-10 |
| A Wide-Dynamic-Range Neural-Recording IC With Automatic-Gain-Controlled AFE and CT Dynamic-Zoom Delta Sigma ADC for Saturation-Free Closed-Loop Neural Interfaces Jung, Yoontae; Kweon, Soon-Jae; Jeon, Hyuntak; Choi, Injun; Koo, Jimin; Kim, Mi Kyung; Lee, Hyunjoo Jenny; et al, IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.57, no.10, pp.3071 - 3082, 2022-10 |
| A Wireless Power and Data Transfer IC for Neural Prostheses Using a Single Inductive Link With Frequency-Splitting Characteristic Park, Yechan; Koh, Seok-Tae; Lee, Jeongeun; Kim, Hongkyun; Choi, Jaesuk; Ha, Sohmyung; Kim, Chul; et al, IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.15, no.6, pp.1306 - 1319, 2021-12 |
| An 8MHz 31.25kS/s Impedance-Monitoring IC Based on IF-Sampling Architecture with a Band-Pass Delta-Sigma ADC Kweon, Soon-jae; Gil, Joonho; Park, Chulhyun; Oh, Sein; Jung, Yoontae; Choi,Injun; Cheon, Song I.; et al, 35th Symposium on VLSI Circuits, VLSI Circuits 2021, Institute of Electrical and Electronics Engineers Inc., 2021-06 |
| An Energy-Efficient Three-Stage Amplifier Achieving a High Unity-Gain Bandwidth for Large Capacitive Loads without Using a Compensation Zero Shin, Hongseok; Kim, Jinuk; Jang, Doojin; Cho, Donghee; Jung, Yoontae; Cho, Hyungjoo; Lee, Unbong; et al, IEEE SOLID-STATE CIRCUITS LETTERS, v.3, pp.530 - 533, 2020-12 |
| An Energy-Efficient, Scalable Neural Stimulation IC with Adaptive Dynamic Voltage Switching for Cochlear Implant System Ahn, Woojin; Nguyen, Kim-Hoang; Lim, Jungwoo; Min, Kyou Sik; Lee, Hoseung; Ha, Sohmyung; Je, Minkyu, 2023 IEEE International Symposium on Circuits and Systems (ISCAS), IEEE, 2023-05-21 |
| An Energy-Replenishing Ultrasound Pulser with 0.25CV(2)f Dynamic Power Consumption Choi, Jaesuk; Park, Yechan; Oh, Jung Bum; Kim, Jun-Young; Hwang, Jae Youn; Ha, Sohmyung; Kim, Chul; et al, IEEE International Solid-State Circuits Conference, ISSCC 2021, pp.486 - 488, IEEE, 2021-02 |
| An Impedance Readout IC with Ratio-Based Measurement Techniques for Electrical Impedance Spectroscopy Cheon, Song I; Kweon, Soon-Jae; Kim, Youngin; Koo, Jimin; Ha, Sohmyung; Je, Minkyu, SENSORS, v.22, no.4, 2022-02 |
| An Intra-Body Power Transfer System With >1-mW Power Delivered to the Load and 3.3-V DC Output at 160-cm of on-Body Distance Cho, Hyungjoo; Suh, Ji-Hoon; Kim, Chul; Ha, Sohmyung; Je, Minkyu, IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.16, no.5, pp.852 - 866, 2022-10 |
| An Intra-Body-Power-Transfer System with a PLL-based Continuous Maximum Resonant Power Tracking Loop at TX and 1.8V DC Output Voltage at RX Cho, Hyungjoo; Suh, Ji-Hoon; Yun, Gichan; Ha, Sohmyung; Je, Minkyu, 2022 IEEE Asian Solid-State Circuits Conference, A-SSCC 2022, pp.6 - 8, Institute of Electrical and Electronics Engineers Inc., 2022-11 |
| An Intrabody Power Transfer System With Continuous Maximum Resonant Power Tracking Cho, Hyungjoo; Suh, Ji-Hoon; Yun, Gichan; Ha, Sohmyung; Je, Minkyu, IEEE SOLID-STATE CIRCUITS LETTERS, v.6, pp.105 - 108, 2023 |
| An SRAM-Based Hybrid Computation-in-Memory Macro Using Current-Reused Differential CCO Choi, Injun; Choi, Edward Jongyoon; Yi, Donghyeon; Jung, Yoontae; Seong, Hoyong; Jeon, Hyuntak; Kweon, Soon-Jae; et al, IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, v.12, no.2, pp.536 - 546, 2022-06 |
| Dynamic-Range-Enhancement Techniques for Artifact-Tolerant Biopotential-Acquisition ICs Jung, Yoontae; Kweon, Soon-Jae; Lee, Taeju; Jeong, Kyeongwon; Ha, Sohmyung; Je, Minkyu, IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.69, no.7, pp.3090 - 3095, 2022-07 |
| Energy-Efficient High-Voltage Pulsers for Ultrasound Transducers Choi, Jaesuk; Youn, Sangyeon; Hwang, Jae Youn; Ha, Sohmyung; Kim, Chul; Je, Minkyu, IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.68, no.1, pp.19 - 23, 2021-01 |
| On-Chip Sinusoidal Signal Generators for Electrical Impedance Spectroscopy: Methodological Review Kweon, Soon-Jae; Rafi, Ayesha Kajol; Cheon, Song-I; Je, Minkyu; Ha, Sohmyung, IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.16, no.3, pp.337 - 360, 2022-06 |
| Optimal Parameter Design of DAC-Based Sinusoidal Signal Generators for Electrical Impedance Spectroscopy Cheon, Song I; Kweon, Soon-Jae; Aberra, Aida; Je, Minkyu; Ha, Sohmyung, IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, v.72, 2023 |
| SRAM-Based Computing-in-Memory Macro With Fully Parallel One-Step Multibit Computation Choi, Edward Jongyoon; Choi, Injun; Jeon, Chanhee; Yun, Gichan; Yi, Donghyeon; Ha, Sohmyung; Chang, Ik-Joon; et al, IEEE SOLID-STATE CIRCUITS LETTERS, v.5, pp.234 - 237, 2022 |
| Wireless Kitchen Fire Prevention System Using Electrochemical Carbon Dioxide Gas Sensor for Smart Home Kweon, Soon-Jae; Park, Jeong-Ho; Park, Chong-Ook; Yoo, Hyung-Joun; Ha, Sohmyung, SENSORS, v.22, no.11, 2022-06 |
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