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Hoi Lee
ORCID
Publication Activity (10 Years)
Years Active: 2000-2024
Publications (10 Years): 33
Top Topics
Power Transmission
Dc Programming
Parallel Tree Search
Color Temperature
Top Venues
IEEE J. Solid State Circuits
ISSCC
CICC
MWSCAS
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Publications
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Ziyang Luo
,
Jin Liu
,
Hoi Lee
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
59 (8) (2024)
Ziyang Luo
,
Jin Liu
,
Hoi Lee
A 40.68-MHz Active Rectifier With Cycle-Based On-/Off-Delay Compensation for High-Current Biomedical Implants.
IEEE J. Solid State Circuits
58 (2) (2023)
Ziyang Luo
,
Jin Liu
,
Hoi Lee
A 90%-Efficiency 40.68MHz Single-Stage Dual-Output Regulating Rectifier with ZVS and Synchronous PFM Control for Wireless Powering.
ISSCC
(2023)
Chen Chen
,
Jin Liu
,
Hoi Lee
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
(2022)
Weijie Han
,
Ziyang Luo
,
Chen Chen
,
Jin Liu
,
Hoi Lee
A 200mA-Load 0.62fs-FOM Active-Capacitor-Assisted Dual-loop Output Capacitorless Low-Dropout Regulator in Standard 65nm CMOS.
ISCAS
(2022)
Qi Cheng
,
Jin Liu
,
Hoi Lee
A Wide-Input-Range Low-Profile Adaptive Delay Compensated Hysteretic LED Driver With Enhanced Current Accuracy.
IEEE J. Solid State Circuits
57 (8) (2022)
Jiu Xiong
,
Jeniffer Zhao
,
Jin Liu
,
Hoi Lee
Order CT-ΣΔ Modulator with a Hybrid Loop Filter Employing Passive and Continuous-Time Delay Based Integrators.
ISCAS
(2022)
Chen Chen
,
Jin Liu
,
Hoi Lee
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
(2022)
Jiu Xiong
,
Jin Liu
,
Hoi Lee
A Continuous-Time Sigma-Delta Modulator With Continuous-Time Delay-Based Integrator.
IEEE Trans. Circuits Syst. II Express Briefs
69 (3) (2022)
Qi Cheng
,
Lin Cong
,
Hoi Lee
A 48-80-V Input 2-MHz Adaptive ZVT-Assisted Bus Converter With Light-Load Efficiency Improvement.
IEEE J. Solid State Circuits
57 (7) (2022)
Ziyang Luo
,
Hoi Lee
A 40.68MHz Active Rectifier with Cycle-Based On/Off-Delay Compensation for Biomedical Implants.
ESSCIRC
(2021)
Sandip Uprety
,
Hoi Lee
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
56 (6) (2021)
Chen Chen
,
Jin Liu
,
Hoi Lee
A 2-MHz 9-45-V Input High-Efficiency Three-Switch ZVS Step-Up/-Down Hybrid Converter.
IEEE J. Solid State Circuits
56 (3) (2021)
Qi Cheng
,
Jin Liu
,
Hoi Lee
A 5-100V Input Low-Profile Adaptive Delay Compensated Hysteretic LED Driver with Enhanced Current Accuracy.
CICC
(2021)
Zhe Hua
,
Qi Cheng
,
Jin Liu
,
Hoi Lee
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
56 (5) (2021)
Ziyang Luo
,
Hoi Lee
A 87.2%-Efficiency 27.12MHz Current-Mode Wireless Power Receiver with Ramp-Assisted Energy Delivery Controller for Implantable Devices.
A-SSCC
(2021)
Qi Cheng
,
Lin Cong
,
Hoi Lee
11.4 A 48-to-80V Input 2MHz Adaptive ZVT-Assisted GaN-Based Bus Converter Achieving 14% Light-Load Efficiency Improvement.
ISSCC
(2020)
Chen Chen
,
Jin Liu
,
Hoi Lee
A 9 - 45V Input 2MHz 3-Switch ZVS Step-up / -down Hybrid Converter with 5x Volume Reduction.
CICC
(2020)
David T. Blaauw
,
Hoi Lee
,
John P. Keane
,
Jaehyouk Choi
,
Sudhakar Pamarti
Introduction to the Special Issue on the 2020 IEEE International Solid-State Circuits Conference (ISSCC).
IEEE J. Solid State Circuits
55 (12) (2020)
Shuyu Zhang
,
Menglian Zhao
,
Hoi Lee
A Current-Density-Enhanced 12V-to-1.2V/10A, AOT-Controlled, 4-Phase Series-Capacitor Buck Converter with Embedded Current Balancing.
MWSCAS
(2019)
Zhe Hua
,
Hoi Lee
Ratio Extension Technique for Ladder-/ Dickson- Based Multiple-Output Switched-Capacitor DC-DC Converters.
MWSCAS
(2019)
Lin Cong
,
Jin Liu
,
Hoi Lee
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.
(1) (2019)
Zhidong Liu
,
Hoi Lee
A Current-Accuracy-Enhanced Wide-Input-Range DC-DC LED Driver With Feedforward Synchronous Current Control.
IEEE Trans. Circuits Syst. I Regul. Pap.
(11) (2018)
Lin Cong
,
Hoi Lee
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
(2018)
Lin Cong
,
Hoi Lee
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
53 (12) (2018)
Zhe Hua
,
Hoi Lee
A 1.2A auto-configurable dual-output switched-capacitor DC-DC regulator with continuous gate-drive modulation achieving <0.01mV/mA cross regulation.
CICC
(2017)
Sandip Uprety
,
Hoi Lee
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
(2017)
Hoi Lee
,
Gerard Villar Pique
,
Axel Thomsen
Session 10 overview: DC-DC converters.
ISSCC
(2017)
Zhidong Liu
,
Hoi Lee
A Wide-Input-Range Efficiency-Enhanced Synchronous Integrated LED Driver With Adaptive Resonant Timing Control.
IEEE J. Solid State Circuits
51 (8) (2016)
Jing Xue
,
Hoi Lee
Control and Nanosecond-Scale ZVS Turn-On Delay.
IEEE J. Solid State Circuits
51 (12) (2016)
Sandip Uprety
,
Hoi Lee
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
51 (9) (2016)
Hoi Lee
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.
24 (4) (2016)
Jing Xue
,
Hoi Lee
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
(2016)
Zhidong Liu
,
Lin Cong
,
Hoi Lee
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
50 (6) (2015)
Zhidong Liu
,
Hoi Lee
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
50 (9) (2015)
Zhe Hua
,
Hoi Lee
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
50 (3) (2015)
Hoi Lee
,
Jeff Morroni
Session 19 - Power management.
CICC
(2015)
Hoi Lee
,
Zhe Hua
,
Xiwen Zhang
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.
23 (4) (2015)
Jing Xue
,
Hoi Lee
A 2-MHz 60-W Zero-Voltage-Switching Synchronous Noninverting Buck-Boost Converter With Reduced Component Values.
IEEE Trans. Circuits Syst. II Express Briefs
(7) (2015)
Zhidong Liu
,
Hoi Lee
A 5-115V efficiency-enhanced synchronous LED driver with adaptive resonant timing control.
CICC
(2015)
Dongkyung Park
,
Hoi Lee
Improvements in Light-Load Efficiency and Operation Frequency for Low-Voltage Current-Mode Integrated Boost Converters.
IEEE Trans. Circuits Syst. II Express Briefs
(8) (2014)
Lin Cong
,
Jing Xue
,
Hoi Lee
A 140W 97%-efficiency 4MHz two-phase buck converter with quasi-square-wave ZVS scheme.
MWSCAS
(2014)
Sandip Uprety
,
Hoi Lee
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
(2014)
Zhidong Liu
,
Jing Xue
,
Lin Cong
,
Hoi Lee
Building high-frequency high-voltage switching converters for renewable energy systems.
MWSCAS
(2014)
Dongkyung Park
,
Zhidong Liu
,
Hoi Lee
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
49 (8) (2014)
Xiwen Zhang
,
Hoi Lee
Gain-Enhanced Monolithic Charge Pump With Simultaneous Dynamic Gate and Substrate Control.
IEEE Trans. Very Large Scale Integr. Syst.
21 (3) (2013)
Zhidong Liu
,
Hoi Lee
A synchronous LED driver with dynamic level-shifting and simultaneous peak & valley current sensing for high-brightness lighting applications.
MWSCAS
(2013)
Dongkyung Park
,
Hoi Lee
A 40V 10W 93%-efficiency current-accuracy-enhanced dimmable LED driver with adaptive timing difference compensation for solid-state lighting applications.
CICC
(2013)
Zhe Hua
,
Hoi Lee
,
Xiwen Zhang
An auto-reconfigurable dual-output SC DC-DC regulator with sub-harmonic fixed on-time control for energy-harvesting applications.
ISCAS
(2013)
Yuxiang Zheng
,
Jin Liu
,
Robert Payne
,
Mark Morgan
,
Hoi Lee
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.
21 (12) (2013)
Zhe Hua
,
Hoi Lee
A cross-regulation-free triple-output switched-capacitor DC-DC regulator for energy-harvesting applications.
MWSCAS
(2013)
Zhidong Liu
,
Hoi Lee
A 100V gate driver with sub-nanosecond-delay capacitive-coupled level shifting and dynamic timing control for ZVS-based synchronous power converters.
CICC
(2013)
Mengmeng Du
,
Hoi Lee
A high-efficiency auto-reconfigurable SITIDO boost/buck regulator with input power conditioning for energy-harvesting applications.
MWSCAS
(2012)
Jun Hua
,
Hoi Lee
,
Ken King
An event-driven ultra-low-current battery management system with reconfigurable linear regulator for multi-cell battery applications.
ISCAS
(2012)
Yunlei Li
,
Jin Liu
,
Hoi Lee
Ground Switching Load Modulation With Ground Isolation for Passive HF RFID Transponders.
IEEE Trans. Very Large Scale Integr. Syst.
20 (8) (2012)
Mengmeng Du
,
Hoi Lee
,
Jin Liu
A 5-MHz 91% Peak-Power-Efficiency Buck Regulator With Auto-Selectable Peak- and Valley-Current Control.
IEEE J. Solid State Circuits
46 (8) (2011)
Xiwen Zhang
,
Hoi Lee
A reconfigurable 2× / 2.5× / 3× / 4× SC DC-DC regulator for enhancing area and power efficiencies in transcutaneous power transmission.
CICC
(2011)
Song Guo
,
Hoi Lee
Dual Active-Capacitive-Feedback Compensation for Low-Power Large-Capacitive-Load Three-Stage Amplifiers.
IEEE J. Solid State Circuits
46 (2) (2011)
Douglas Kim
,
Vanishree Gopalakrishna
,
Song Guo
,
Hoi Lee
,
Murat Torlak
,
Nasser Kehtarnavaz
,
Arthur P. Lobo
,
Philipos C. Loizou
On the design of a flexible stimulator for animal studies in auditory prostheses.
Biomed. Signal Process. Control.
6 (4) (2011)
Mengmeng Du
,
Hoi Lee
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.
(10) (2010)
Xiwen Zhang
,
Hoi Lee
An Efficiency-Enhanced Auto-Reconfigurable 2 ˟ /3 ˟ SC Charge Pump for Transcutaneous Power Transmission.
IEEE J. Solid State Circuits
45 (9) (2010)
Mohammad A. Al-Shyoukh
,
Hoi Lee
A current-limiter-based soft-start scheme for linear and low-dropout voltage regulators.
ISCAS
(2010)
Hoi Lee
,
Seong-Ryong Ryu
An Efficiency-Enhanced DCM Buck Regulator With Improved Switching Timing of Power Transistors.
IEEE Trans. Circuits Syst. II Express Briefs
(3) (2010)
Junjie Yao
,
Jin Liu
,
Hoi Lee
Bulk Voltage Trimming Offset Calibration for High-Speed Flash ADCs.
IEEE Trans. Circuits Syst. II Express Briefs
(2) (2010)
Mengmeng Du
,
Hoi Lee
A 5-MHz 91% peak-power-efficiency buck regulator with auto-selectable peak- and valley-current control.
CICC
(2010)
Mohammad A. Al-Shyoukh
,
Hoi Lee
A Compact Fully-Integrated Extremum-Selector-Based Soft-Start Circuit for Voltage Regulators in Bulk CMOS Technologies.
IEEE Trans. Circuits Syst. II Express Briefs
(10) (2010)
Mohammad A. Al-Shyoukh
,
Hoi Lee
A Compact Ramp-Based Soft-Start Circuit for Voltage Regulators.
IEEE Trans. Circuits Syst. II Express Briefs
(7) (2009)
Song Guo
,
Hoi Lee
Single-Capacitor Active-Feedback Compensation for Small-Capacitive-Load Three-Stage Amplifiers.
IEEE Trans. Circuits Syst. II Express Briefs
(10) (2009)
Hoi Lee
A low-voltage low-power comparator With current-controlled dynamically-biased preamplifiers For DCM buck regulators.
ICECS
(2009)
Song Guo
,
Hoi Lee
An Efficiency-Enhanced CMOS Rectifier With Unbalanced-Biased Comparators for Transcutaneous-Powered High-Current Implants.
IEEE J. Solid State Circuits
44 (6) (2009)
Xiwen Zhang
,
Hoi Lee
An efficiency-enhanced auto-reconfigurable 2x/3x SC charge pump for transcutaneous power transmission.
CICC
(2009)
Mengmeng Du
,
Hoi Lee
A 2.5MHz, 97%-accuracy on-chip current sensor with dynamically-biased shunt feedback for current-mode switching DC-DC converters.
ISCAS
(2008)
Song Guo
,
Hoi Lee
,
Philipos C. Loizou
A 9-Bit configurable current source with enhanced output resistance for cochlear stimulators.
CICC
(2008)
Song Guo
,
Hoi Lee
An Efficiency-Enhanced Integrated CMOS Rectifier with Comparator-Controlled Switches for Transcutaneous Powered Implants.
CICC
(2007)
Mohammad Al-Shyoukh
,
Hoi Lee
,
Raul A. Perez
A Transient-Enhanced Low-Quiescent Current Low-Dropout Regulator With Buffer Impedance Attenuation.
IEEE J. Solid State Circuits
42 (8) (2007)
Song Guo
,
Hoi Lee
Dual Active-Capacitive-Feedback Compensation for Area-Efficient Three-Stage Amplifiers.
ISCAS
(2007)
Hoi Lee
,
Philip K. T. Mok
An SC Voltage Doubler with Pseudo-Continuous Output Regulation Using a Three-Stage Switchable Opamp.
IEEE J. Solid State Circuits
42 (6) (2007)
Mohammad A. Al-Shyoukh
,
Raul A. Perez
,
Hoi Lee
A Transient-Enhanced 20μA-Quiescent 200mA-Load Low-Dropout Regulator With Buffer Impedance Attenuation.
CICC
(2006)
Song Guo
,
Hoi Lee
A low-power active substrate-noise decoupling circuit with feedforward compensation for mixed-signal SoCs.
ISLPED
(2006)
Sunwoo Kwon
,
Hoi Lee
A 1.2V, 3.5µW, 20MS/s, 8-bit comparator with dynamic-biasing preamplifier.
ISCAS
(2006)
Xiaofeng Lin
,
Jin Liu
,
Hoi Lee
,
Hao Liu
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
41 (8) (2006)
Hoi Lee
,
Philip K. T. Mok
Switching noise and shoot-through current reduction techniques for switched-capacitor voltage doubler.
IEEE J. Solid State Circuits
40 (5) (2005)
Hoi Lee
,
Philip K. T. Mok
,
Ka Nang Leung
Design of low-power analog drivers based on slew-rate enhancement circuits for CMOS low-dropout regulators.
IEEE Trans. Circuits Syst. II Express Briefs
(9) (2005)
Guangbin Zhang
,
Hoi Lee
,
Jin Liu
A 35nW/pixel 2D visual motion sensor.
ESSCIRC
(2005)
Xiaofeng Lin
,
Hoi Lee
,
Jin Liu
A continuous-time adaptive FIR equalizer with LNV-AIL delay line for 2.5Gb/s data communication.
CICC
(2005)
Hoi Lee
,
Philip K. T. Mok
Advances in active-feedback frequency compensation with power optimization and transient improvement.
IEEE Trans. Circuits Syst. I Regul. Pap.
(9) (2004)
Hoi Lee
,
Philip K. T. Mok
Active-feedback frequency-compensation technique for low-power multistage amplifiers.
IEEE J. Solid State Circuits
38 (3) (2003)
Hoi Lee
,
Philip K. T. Mok
Switching noise reduction techniques for switched-capacitor voltage doubler.
CICC
(2003)
Hoi Lee
,
Ka Nang Leung
,
Philip K. T. Mok
A dual-path bandwidth extension amplifier topology with dual-loop parallel compensation.
IEEE J. Solid State Circuits
38 (10) (2003)
Hoi Lee
,
Philip K. T. Mok
Active-feedback frequency compensation for low-power multi-stage amplifiers.
CICC
(2002)
Hoi Lee
,
Philip K. T. Mok
A CMOS current-mirror amplifier with compact slew rate enhancement circuit for large capacitive load applications.
ISCAS (1)
(2001)
Hoi Lee
,
Philip K. T. Mok
,
Wing-Hung Ki
A novel voltage-control scheme for low-voltage DC-DC converters with fast transient recovery.
ISCAS
(2000)