Hoi Lee

Ph.D. - Electrical and Electronic Engineering
Hong Kong University of Science and Technology - 2004

M.Phil - Electrical and Electronic Engineering
Hong Kong University of Science and Technology - 2000

B.E. - Electronic Engineering
Hong Kong University of Science and Technology - 1998

Y. Li, J. Liu, and H. Lee, “Ground switching load modulation with ground isolation for passive HF RFID transponders,” IEEE Transactions on Very Large Scale Integration Systems (TVLSI), accepted for publication. forthcoming - Publication

  M. Du, H. Lee, and J. Liu, “A 5-MHz 91% peak-power-efficiency buck regulator with auto-selectable peak- and valley-current control,” IEEE Journal of Solid-State Circuits (JSSC), vol. 46, no. 8, pp. 1928 – 1939, Aug. 2011. 2011 - Publication

S. Guo and H. Lee, “Dual active-capacitive-feedback compensation for low-power large-capacitive-load three-stage amplifiers,”IEEE Journal of Solid-State Circuits (JSSC), vol. 46, no. 2, pp. 452 – 464, Feb. 2011. 2011 - Publication

M. Du and H. Lee, “An integrated speed- and accuracy-enhanced CMOS current sensor with dynamically-biased shunt feedback for current-mode buck regulators,” IEEE Transactions on Circuits and Systems-I (TCAS-I),vol. 57, no. 10, pp. 2804 – 2814, Oct. 2010. 2010 - Publication

  J. Yao, J. Liu, and H. Lee, “Bulk voltage trimming offset calibration for high-speed Flash ADCs,” IEEE Transactions on Circuits and Systems-II (TCAS-II), vol. 57, no. 2, pp. 110 – 114, Feb. 2010. 2010 - Publication

H. Leeand S. Ryu, “An efficiency-enhanced DCM buck regulator with improved switching timing of power transistors,” IEEE Transactions on Circuits and Systems-II (TCAS-II), vol. 57, no. 3, pp. 238 – 242, Mar. 2010. 2010 - Publication

X. Zhang and H. Lee, “An efficiency-enhanced auto-reconfigurable 2x/3x SC charge pump for transcutaneous power transmission,” IEEE Journal of Solid-State Circuits (JSSC), vol. 45, no. 9, pp. 1906 – 1922, Sep. 2010. 2010 - Publication

M. Al-Shyoukh and H. Lee, “A compact fully-integrated extremum-selector-based soft-start circuit for voltage regulators,” IEEE Transactions on Circuits and Systems-II (TCAS-II), vol. 57, no. 10, pp. 818 – 822, Oct. 2010. 2010 - Publication

Associate Professor
University of Texas at Dallas [2011–Present]

Assistant Professor
University of Texas at Dallas [2005–2011]

Postdoctoral Research Associate
Hong Kong University of Science and Technology [2004–2004]

Research/Teaching Assistant
Hong Kong University of Science and Technology [2000–2004]

Inductor-less power management IC for portable applications

2007–2007 Meeting Title: CMOS Emerging Technologies Workshop, Whistler, BC, Canada, Jul. 11-13, 2007.

A low-dropout regulator with minimized output variations for distributed power management systems Meeting

2007–2007 Meeting Title: IBM Austin Conference on Energy-Efficient Design, Austin, TX, USA, Mar. 5, 2007.

Power-efficient and transient-enhanced inductor-less integrated dc-dc converters for portable applications

2007–2007 Host Organization: Center of Power Electronics Systems, Virginia Tech., Blacksburg, VA, USA, May 10, 2007.

Design of high-performance SC dc-dc regulator

2006–2006 Host Organization: Texas Instruments Inc., Dallas, TX, USA, Mar. 24, 2006.

Design of high-performance SC dc-dc regulator

2005–2005 Host Organization: IEEE Circuits and Systems - Dallas Chapter, Dallas, TX, USA, Sep. 26, 2005.

Professional Recognitions and Honors

• Honorable recognition of research excellence in various publications of Hong Kong University of Science and Technology (HKUST) including March 05 issue of Genesis, March 05 issue of Academic Affairs Newsletter, HKUST Annual Report 2005-2006, and Issue 1 2005 of HKUST Newsletter
• Top 20 downloaded papers in IEEE Transactions on Circuits and Systems I
• Recipient of the Best Student Paper Award in IEEE Custom Integrated Circuits Conference

Funding

• Project Title: Micro-transponder platforms for biomedical implant applications Principal Investigator: Hoi Lee Funding Organization: Microtransponder Inc. Date: 1/1/2008 - 3/31/2009 Amount: $ 108,980
• Project Title: Non-charge-balanced electrical stimulation for biofilm removal on cochlear implants: in-vitro and in-vivo studies Principal Investigators: Hoi Lee (UTD) and Karen Pawlowski (UT-Southwestern Medical Center) Funding Organization: UTD UT Southwestern Joint Research Program Date: 9/1/2007 - 8/31/2008 Amount: $ 100,000
• Project Title: A high-frequency high-efficiency switched-mode power converter in ultra-deep submicron CMOS Principal Investigator: Hoi Lee Funding Organization: Texas Instruments Inc. Date: 1/1/2007 - 12/31/2007 Amount: $ 42,000
• Project Title: High-performance power management integrated circuits Principal Investigator: Hoi Lee Funding Organization: Texas Instruments Inc. Date: 1/1/2007 - 12/31/2007 Amount: $ 40,000
• Project Title: Charitable donation of equipment Principal Investigator: Hoi Lee Funding Organization: Tektronix Inc. Date: 12/2006 Amount: $ 87,000
• Project Title: Human powered wireless sensor network Principal Investigators: Hoi Lee (UTD) and Shashank Priya (UTA) Funding Organization: UTD UTA Joint Institutional Seed Research Program Date: 4/15/2006 - 4/14/2007 Amount: $ 20,000
• Project Title: High-performance power management integrated circuits Principal Investigator: Hoi Lee Funding Organization: Texas Instruments Inc. Date: 1/1/2006 - 12/31/2006 Amount: $ 40,000
• Project Title: High-speed high efficiency switched regulator for cellular handset power amplifiers Principal Investigator: Hoi Lee Funding Organization: Texas Instruments Inc. Date: 1/1/2006 - 12/31/2006 Amount: $ 21,000
• Project Title: Open architecture research interface for cochlear implant Principal Investigators: Philip Loizou, Nasser Kehtarnavza, Hoi Lee, Murat Torlak, and Anu Sharma Funding Organization: National Institute of Health Date: 4/1/2006 - 3/31/2009 Amount: $ 1,300,000

Professional Recognitions and Honors

NSF Career Award

Researcher Targets Improved Energy Efficiency

A  UT Dallas researcher is advancing what he calls “a transformational paradigm for power management and delivery” that could significantly reduce energy consumption in battery-operated portable devices, LED lighting systems and other products.

His approach would shift power management in many cases from bulky power adaptors to tiny semiconductors, not only increasing the efficiency of power conversion but also eliminating the cost of the materials needed for external adaptors.