Hoi Lee

95 papers A 1C 9Journal 46Unranked 38
YearRankTypeTitle / Venue / Authors
2024 J jnl
A High-Efficiency 40.68-MHz Single-Stage Dual-Output Regulating Rectifier With ZVS and Synchronous PFM Control for Wireless Powering.
IEEE J. Solid State Circuits
Ziyang Luo, Jin Liu, Hoi Lee
2024 J jnl
A Tri-Mode Reconfigurable DC-DC Converter With Photovoltaic Energy Harvesting for Miniature IoT Batteries.
IEEE Trans. Circuits Syst. II Express Briefs
Junyoung Maeng, Inho Park, Jinwoo Jeon, HyunJin Kim, Hoi Lee, Chulwoo Kim
2024 — conf
High-Efficiency High-Conversion-Ratio Power Delivery Circuits for Computing Applications.
BCICTS
Hoi Lee, Chen Chen, Weijie Han, Athul M. Sudha, Navaneeth Sri Easwaran, Jin Liu
2023 J jnl
A 40.68-MHz Active Rectifier With Cycle-Based On-/Off-Delay Compensation for High-Current Biomedical Implants.
IEEE J. Solid State Circuits
Ziyang Luo, Jin Liu, Hoi Lee
2023 — conf
A 90%-Efficiency 40.68MHz Single-Stage Dual-Output Regulating Rectifier with ZVS and Synchronous PFM Control for Wireless Powering.
ISSCC
Ziyang Luo, Jin Liu, Hoi Lee
2022 — conf
A 2-5MHz Multiple DC Output Hybrid Boost Converter with Scalable CR Boosting Scheme Achievi 1 ng 91% Efficie 1 ncy at a Conversion Ratio of 12.
ISSCC
Chen Chen, Jin Liu, Hoi Lee
2022 — conf
A 2.5-5MHz 87% Peak Efficiency 48V-to-1V Integrated Hybrid DC-DC Converter Adopting Ladder SC Network with Capacitor-Assisted Dual-Inductor Filtering.
ISSCC
Chen Chen, Jin Liu, Hoi Lee
2022 C conf
A 200mA-Load 0.62fs-FOM Active-Capacitor-Assisted Dual-loop Output Capacitorless Low-Dropout Regulator in Standard 65nm CMOS.
ISCAS
Weijie Han, Ziyang Luo, Chen Chen, Jin Liu, Hoi Lee
2022 C conf
A 3
ISCAS
Jiu Xiong, Jeniffer Zhao, Jin Liu, Hoi Lee
2022 J jnl
A 48-80-V Input 2-MHz Adaptive ZVT-Assisted Bus Converter With Light-Load Efficiency Improvement.
IEEE J. Solid State Circuits
Qi Cheng, Lin Cong, Hoi Lee
2022 J jnl
A Continuous-Time Sigma-Delta Modulator With Continuous-Time Delay-Based Integrator.
IEEE Trans. Circuits Syst. II Express Briefs
Jiu Xiong, Jin Liu, Hoi Lee
2022 J jnl
A Wide-Input-Range Low-Profile Adaptive Delay Compensated Hysteretic LED Driver With Enhanced Current Accuracy.
IEEE J. Solid State Circuits
Qi Cheng, Jin Liu, Hoi Lee
2021 J jnl
A 0.65-mW-to-1-W Photovoltaic Energy Harvester With Irradiance-Aware Auto-Configurable Hybrid MPPT Achieving >95% MPPT Efficiency and 2.9-ms FOCV Transient Time.
IEEE J. Solid State Circuits
Sandip Uprety, Hoi Lee
2021 J jnl
A 1.2-A Dual-Output SC DC-DC Regulator With Continuous Gate-Drive Modulation Achieving ≤0.01-mV/mA Cross Regulation.
IEEE J. Solid State Circuits
Zhe Hua, Qi Cheng, Jin Liu, Hoi Lee
2021 J jnl
A 2-MHz 9-45-V Input High-Efficiency Three-Switch ZVS Step-Up/-Down Hybrid Converter.
IEEE J. Solid State Circuits
Chen Chen, Jin Liu, Hoi Lee
2021 — conf
A 40.68MHz Active Rectifier with Cycle-Based On/Off-Delay Compensation for Biomedical Implants.
ESSCIRC
Ziyang Luo, Hoi Lee
2021 — conf
A 5-100V Input Low-Profile Adaptive Delay Compensated Hysteretic LED Driver with Enhanced Current Accuracy.
CICC
Qi Cheng, Jin Liu, Hoi Lee
2021 — conf
A 87.2%-Efficiency 27.12MHz Current-Mode Wireless Power Receiver with Ramp-Assisted Energy Delivery Controller for Implantable Devices.
A-SSCC
Ziyang Luo, Hoi Lee
2020 — conf
11.4 A 48-to-80V Input 2MHz Adaptive ZVT-Assisted GaN-Based Bus Converter Achieving 14% Light-Load Efficiency Improvement.
ISSCC
Qi Cheng, Lin Cong, Hoi Lee
2020 — conf
A 9 - 45V Input 2MHz 3-Switch ZVS Step-up / -down Hybrid Converter with 5x Volume Reduction.
CICC
Chen Chen, Jin Liu, Hoi Lee
2020 J jnl
Introduction to the Special Issue on the 2020 IEEE International Solid-State Circuits Conference (ISSCC).
IEEE J. Solid State Circuits
David T. Blaauw, Hoi Lee, John P. Keane, Jaehyouk Choi, Sudhakar Pamarti
2019 — ed.
62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019, Dallas, TX, USA, August 4-7, 2019
MWSCAS
Hoi Lee, Randall L. Geiger
2019 — conf
A Current-Density-Enhanced 12V-to-1.2V/10A, AOT-Controlled, 4-Phase Series-Capacitor Buck Converter with Embedded Current Balancing.
MWSCAS
Shuyu Zhang, Menglian Zhao, Hoi Lee
2019 J jnl
A High-Efficiency Low-Profile Zero-Voltage Transition Synchronous Non-Inverting Buck-Boost Converter With Auxiliary-Component Sharing.
IEEE Trans. Circuits Syst. I Regul. Pap.
Lin Cong, Jin Liu, Hoi Lee
2019 — conf
Ratio Extension Technique for Ladder-/ Dickson- Based Multiple-Output Switched-Capacitor DC-DC Converters.
MWSCAS
Zhe Hua, Hoi Lee
2018 J jnl
A 1-2-MHz 150-400-V GaN-Based Isolated DC-DC Bus Converter With Monolithic Slope-Sensing ZVS Detection.
IEEE J. Solid State Circuits
Lin Cong, Hoi Lee
2018 — conf
A 2MHz 150-to-400V input isolated DC-DC bus converter with monolithic slope-sensing ZVS detection achieving 13ns turn-on delay and 1.6W power saving.
ISSCC
Lin Cong, Hoi Lee
2018 J jnl
A Current-Accuracy-Enhanced Wide-Input-Range DC-DC LED Driver With Feedforward Synchronous Current Control.
IEEE Trans. Circuits Syst. I Regul. Pap.
Zhidong Liu, Hoi Lee
2017 — conf
22.5 A 93%-power-efficiency photovoltaic energy harvester with irradiance-aware auto-reconfigurable MPPT scheme achieving >95% MPPT efficiency across 650µW to 1W and 2.9ms FOCV MPPT transient time.
ISSCC
Sandip Uprety, Hoi Lee
2017 — conf
A 1.2A auto-configurable dual-output switched-capacitor DC-DC regulator with continuous gate-drive modulation achieving <0.01mV/mA cross regulation.
CICC
Zhe Hua, Hoi Lee
2017 — conf
Session 10 overview: DC-DC converters.
ISSCC
Hoi Lee, Gerard Villar Pique, Axel Thomsen
2016 — conf
12.5 A 2MHz 12-to-100V 90%-efficiency self-balancing ZVS three-level DC-DC regulator with constant-frequency AOT V2 control and 5ns ZVS turn-on delay.
ISSCC
Jing Xue, Hoi Lee
2016 J jnl
A 0.4W-to-21W Fast-Transient Global-Search-Algorithm Based Integrated Photovoltaic Energy Harvester With 99% GMPPT Efficiency and 94% Power Efficiency.
IEEE J. Solid State Circuits
Sandip Uprety, Hoi Lee
2016 J jnl
A 2 MHz 12-100 V 90% Efficiency Self-Balancing ZVS Reconfigurable Three-Level DC-DC Regulator With Constant-Frequency Adaptive-On-Time V
IEEE J. Solid State Circuits
Jing Xue, Hoi Lee
2016 J jnl
A Wide-Input-Range Efficiency-Enhanced Synchronous Integrated LED Driver With Adaptive Resonant Timing Control.
IEEE J. Solid State Circuits
Zhidong Liu, Hoi Lee
2016 J jnl
An Auto-Reconfigurable 2×4× AC-DC Regulator for Wirelessly Powered Biomedical Implants With 28% Link Efficiency Enhancement.
IEEE Trans. Very Large Scale Integr. Syst.
Hoi Lee
2015 J jnl
A 2-MHz 60-W Zero-Voltage-Switching Synchronous Noninverting Buck-Boost Converter With Reduced Component Values.
IEEE Trans. Circuits Syst. II Express Briefs
Jing Xue, Hoi Lee
2015 J jnl
A 26 W 97%-Efficiency Fast-Settling Dimmable LED Driver With Dual-nMOS-Sensing Based Glitch-Tolerant Synchronous Current Control for High-Brightness Solid-State Lighting Applications.
IEEE J. Solid State Circuits
Zhidong Liu, Hoi Lee
2015 — conf
A 5-115V efficiency-enhanced synchronous LED driver with adaptive resonant timing control.
CICC
Zhidong Liu, Hoi Lee
2015 J jnl
A Reconfigurable 2×2.5×3×4× SC DC-DC Regulator With Fixed On-Time Control for Transcutaneous Power Transmission.
IEEE Trans. Very Large Scale Integr. Syst.
Hoi Lee, Zhe Hua, Xiwen Zhang
2015 J jnl
A Reconfigurable Dual-Output Switched-Capacitor DC-DC Regulator With Sub-Harmonic Adaptive-On-Time Control for Low-Power Applications.
IEEE J. Solid State Circuits
Zhe Hua, Hoi Lee
2015 J jnl
Design of On-Chip Gate Drivers With Power-Efficient High-Speed Level Shifting and Dynamic Timing Control for High-Voltage Synchronous Switching Power Converters.
IEEE J. Solid State Circuits
Zhidong Liu, Lin Cong, Hoi Lee
2015 — conf
Session 19 - Power management.
CICC
Hoi Lee, Jeff Morroni
2014 — conf
23.6 A 43V 400mW-to-21W global-search-based photovoltaic energy harvester with 350μs transient time, 99.9% MPPT efficiency, and 94% power efficiency.
ISSCC
Sandip Uprety, Hoi Lee
2014 — conf
A 140W 97%-efficiency 4MHz two-phase buck converter with quasi-square-wave ZVS scheme.
MWSCAS
Lin Cong, Jing Xue, Hoi Lee
2014 J jnl
A 40 V 10 W 93%-Efficiency Current-Accuracy-Enhanced Dimmable LED Driver With Adaptive Timing Difference Compensation for Solid-State Lighting Applications.
IEEE J. Solid State Circuits
Dongkyung Park, Zhidong Liu, Hoi Lee
2014 — conf
Building high-frequency high-voltage switching converters for renewable energy systems.
MWSCAS
Zhidong Liu, Jing Xue, Lin Cong, Hoi Lee
2014 J jnl
Improvements in Light-Load Efficiency and Operation Frequency for Low-Voltage Current-Mode Integrated Boost Converters.
IEEE Trans. Circuits Syst. II Express Briefs
Dongkyung Park, Hoi Lee
2013 — conf
A 100V gate driver with sub-nanosecond-delay capacitive-coupled level shifting and dynamic timing control for ZVS-based synchronous power converters.
CICC
Zhidong Liu, Hoi Lee
2013 — conf
A 40V 10W 93%-efficiency current-accuracy-enhanced dimmable LED driver with adaptive timing difference compensation for solid-state lighting applications.
CICC
Dongkyung Park, Hoi Lee
2013 J jnl
A 5-Gb/s Automatic Sub-Bit Between-Pair Skew Compensator for Parallel Data Communications in 0.13-µm CMOS.
IEEE Trans. Very Large Scale Integr. Syst.
Yuxiang Zheng, Jin Liu, Robert Payne, Mark Morgan, Hoi Lee
2013 — conf
A cross-regulation-free triple-output switched-capacitor DC-DC regulator for energy-harvesting applications.
MWSCAS
Zhe Hua, Hoi Lee
2013 — conf
A synchronous LED driver with dynamic level-shifting and simultaneous peak & valley current sensing for high-brightness lighting applications.
MWSCAS
Zhidong Liu, Hoi Lee
2013 C conf
An auto-reconfigurable dual-output SC DC-DC regulator with sub-harmonic fixed on-time control for energy-harvesting applications.
ISCAS
Zhe Hua, Hoi Lee, Xiwen Zhang
2013 J jnl
Gain-Enhanced Monolithic Charge Pump With Simultaneous Dynamic Gate and Substrate Control.
IEEE Trans. Very Large Scale Integr. Syst.
Xiwen Zhang, Hoi Lee
2012 — conf
A high-efficiency auto-reconfigurable SITIDO boost/buck regulator with input power conditioning for energy-harvesting applications.
MWSCAS
Mengmeng Du, Hoi Lee
2012 C conf
An event-driven ultra-low-current battery management system with reconfigurable linear regulator for multi-cell battery applications.
ISCAS
Jun Hua, Hoi Lee, Ken King
2012 J jnl
Ground Switching Load Modulation With Ground Isolation for Passive HF RFID Transponders.
IEEE Trans. Very Large Scale Integr. Syst.
Yunlei Li, Jin Liu, Hoi Lee
2011 J jnl
A 5-MHz 91% Peak-Power-Efficiency Buck Regulator With Auto-Selectable Peak- and Valley-Current Control.
IEEE J. Solid State Circuits
Mengmeng Du, Hoi Lee, Jin Liu
2011 — conf
A reconfigurable 2× / 2.5× / 3× / 4× SC DC-DC regulator for enhancing area and power efficiencies in transcutaneous power transmission.
CICC
Xiwen Zhang, Hoi Lee
2011 J jnl
Dual Active-Capacitive-Feedback Compensation for Low-Power Large-Capacitive-Load Three-Stage Amplifiers.
IEEE J. Solid State Circuits
Song Guo, Hoi Lee
2011 J jnl
On the design of a flexible stimulator for animal studies in auditory prostheses.
Biomed. Signal Process. Control.
Douglas Kim, Vanishree Gopalakrishna, Song Guo, Hoi Lee, Murat Torlak, Nasser Kehtarnavaz, Arthur P. Lobo, Philipos C. Loizou
2010 — conf
A 5-MHz 91% peak-power-efficiency buck regulator with auto-selectable peak- and valley-current control.
CICC
Mengmeng Du, Hoi Lee
2010 J jnl
A Compact Fully-Integrated Extremum-Selector-Based Soft-Start Circuit for Voltage Regulators in Bulk CMOS Technologies.
IEEE Trans. Circuits Syst. II Express Briefs
Mohammad A. Al-Shyoukh, Hoi Lee
2010 C conf
A current-limiter-based soft-start scheme for linear and low-dropout voltage regulators.
ISCAS
Mohammad A. Al-Shyoukh, Hoi Lee
2010 J jnl
An Efficiency-Enhanced Auto-Reconfigurable 2 ˟ /3 ˟ SC Charge Pump for Transcutaneous Power Transmission.
IEEE J. Solid State Circuits
Xiwen Zhang, Hoi Lee
2010 J jnl
An Efficiency-Enhanced DCM Buck Regulator With Improved Switching Timing of Power Transistors.
IEEE Trans. Circuits Syst. II Express Briefs
Hoi Lee, Seong-Ryong Ryu
2010 J jnl
An Integrated Speed- and Accuracy-Enhanced CMOS Current Sensor With Dynamically Biased Shunt Feedback for Current-Mode Buck Regulators.
IEEE Trans. Circuits Syst. I Regul. Pap.
Mengmeng Du, Hoi Lee
2010 J jnl
Bulk Voltage Trimming Offset Calibration for High-Speed Flash ADCs.
IEEE Trans. Circuits Syst. II Express Briefs
Junjie Yao, Jin Liu, Hoi Lee
2009 J jnl
A Compact Ramp-Based Soft-Start Circuit for Voltage Regulators.
IEEE Trans. Circuits Syst. II Express Briefs
Mohammad A. Al-Shyoukh, Hoi Lee
2009 — conf
A low-voltage low-power comparator With current-controlled dynamically-biased preamplifiers For DCM buck regulators.
ICECS
Hoi Lee
2009 J jnl
An Efficiency-Enhanced CMOS Rectifier With Unbalanced-Biased Comparators for Transcutaneous-Powered High-Current Implants.
IEEE J. Solid State Circuits
Song Guo, Hoi Lee
2009 — conf
An efficiency-enhanced auto-reconfigurable 2x/3x SC charge pump for transcutaneous power transmission.
CICC
Xiwen Zhang, Hoi Lee
2009 J jnl
Single-Capacitor Active-Feedback Compensation for Small-Capacitive-Load Three-Stage Amplifiers.
IEEE Trans. Circuits Syst. II Express Briefs
Song Guo, Hoi Lee
2008 C conf
A 2.5MHz, 97%-accuracy on-chip current sensor with dynamically-biased shunt feedback for current-mode switching DC-DC converters.
ISCAS
Mengmeng Du, Hoi Lee
2008 — conf
A 9-Bit configurable current source with enhanced output resistance for cochlear stimulators.
CICC
Song Guo, Hoi Lee, Philipos C. Loizou
2007 J jnl
A Transient-Enhanced Low-Quiescent Current Low-Dropout Regulator With Buffer Impedance Attenuation.
IEEE J. Solid State Circuits
Mohammad Al-Shyoukh, Hoi Lee, Raul A. Perez
2007 — conf
An Efficiency-Enhanced Integrated CMOS Rectifier with Comparator-Controlled Switches for Transcutaneous Powered Implants.
CICC
Song Guo, Hoi Lee
2007 J jnl
An SC Voltage Doubler with Pseudo-Continuous Output Regulation Using a Three-Stage Switchable Opamp.
IEEE J. Solid State Circuits
Hoi Lee, Philip K. T. Mok
2007 C conf
Dual Active-Capacitive-Feedback Compensation for Area-Efficient Three-Stage Amplifiers.
ISCAS
Song Guo, Hoi Lee
2006 C conf
A 1.2V, 3.5µW, 20MS/s, 8-bit comparator with dynamic-biasing preamplifier.
ISCAS
Sunwoo Kwon, Hoi Lee
2006 J jnl
A 2.5- to 3.5-Gb/s Adaptive FIR Equalizer With Continuous-Time Wide-Bandwidth Delay Line in 0.25-$muhbox m$CMOS.
IEEE J. Solid State Circuits
Xiaofeng Lin, Jin Liu, Hoi Lee, Hao Liu
2006 — conf
A Transient-Enhanced 20μA-Quiescent 200mA-Load Low-Dropout Regulator With Buffer Impedance Attenuation.
CICC
Mohammad A. Al-Shyoukh, Raul A. Perez, Hoi Lee
2006 A conf
A low-power active substrate-noise decoupling circuit with feedforward compensation for mixed-signal SoCs.
ISLPED
Song Guo, Hoi Lee
2005 — conf
A 35nW/pixel 2D visual motion sensor.
ESSCIRC
Guangbin Zhang, Hoi Lee, Jin Liu
2005 — conf
A continuous-time adaptive FIR equalizer with LNV-AIL delay line for 2.5Gb/s data communication.
CICC
Xiaofeng Lin, Hoi Lee, Jin Liu
2005 J jnl
Design of low-power analog drivers based on slew-rate enhancement circuits for CMOS low-dropout regulators.
IEEE Trans. Circuits Syst. II Express Briefs
Hoi Lee, Philip K. T. Mok, Ka Nang Leung
2005 J jnl
Switching noise and shoot-through current reduction techniques for switched-capacitor voltage doubler.
IEEE J. Solid State Circuits
Hoi Lee, Philip K. T. Mok
2004 J jnl
Advances in active-feedback frequency compensation with power optimization and transient improvement.
IEEE Trans. Circuits Syst. I Regul. Pap.
Hoi Lee, Philip K. T. Mok
2003 J jnl
A dual-path bandwidth extension amplifier topology with dual-loop parallel compensation.
IEEE J. Solid State Circuits
Hoi Lee, Ka Nang Leung, Philip K. T. Mok
2003 J jnl
Active-feedback frequency-compensation technique for low-power multistage amplifiers.
IEEE J. Solid State Circuits
Hoi Lee, Philip K. T. Mok
2003 — conf
Switching noise reduction techniques for switched-capacitor voltage doubler.
CICC
Hoi Lee, Philip K. T. Mok
2002 — conf
Active-feedback frequency compensation for low-power multi-stage amplifiers.
CICC
Hoi Lee, Philip K. T. Mok
2001 — conf
A CMOS current-mirror amplifier with compact slew rate enhancement circuit for large capacitive load applications.
ISCAS (1)
Hoi Lee, Philip K. T. Mok
2000 C conf
A novel voltage-control scheme for low-voltage DC-DC converters with fast transient recovery.
ISCAS
Hoi Lee, Philip K. T. Mok, Wing-Hung Ki