Publications

Referred Journal Publications

·       M. Al-Shyoukh, H. Lee, and R. Perez, “A transient-enhanced low-quiescent current low-dropout regulator with buffer impedance attenuation,” IEEE Journal of Solid-State Circuits (JSSC), vol. 42, pp. 1732 - 1742, Aug. 2007.

·       H. Lee and P. K. T. Mok, “An SC voltage doubler with pseudo-continuous output regulation using a three-stage switchable opamp,” IEEE Journal of Solid-State Circuits (JSSC), vol. 42, pp. 1216 - 1229, Jun. 2007.

·       X. F. Lin, J. Liu, H. Lee, and H. Liu, “A 2.5- to 3.5-Gb/s adaptive FIR equalizer with continuous-time wide bandwidth delay line in 0.25mm CMOS,” IEEE Journal of Solid-State Circuits (JSSC), vol. 41, pp. 1908 - 1918, Aug. 2006.

·       H. Lee, P. K. T. Mok, and K. N. Leung, “Design of low-power analog driver based on slew-rate-enhancement circuit for CMOS low-dropout regulators,” IEEE Transactions on Circuits and Systems II (TCAS-II), vol. 52, pp. 563 - 567, Sep. 2005.

·       H. Lee and P. K. T. Mok, “Switching noise and shoot-through current reduction techniques for switched-capacitor voltage doubler,” IEEE Journal of Solid-State Circuits (JSSC), vol. 40, pp. 1136-1146, May 2005.

·       H. Lee and P. K. T. Mok, “Advances in active-feedback frequency compensation with power optimization and transient improvement,” IEEE Transactions on Circuits and Systems I (TCAS-I), vol. 51, pp. 1690 - 1696, Sep. 2004. (Top 20 Paper Downloads in 2004)

·       H. Lee, K. N. Leung, and P. K. T. Mok, “A dual-path bandwidth extension amplifier topology with dual-loop parallel compensation,” IEEE Journal of Solid-State Circuits (JSSC), vol. 38, pp. 1739 - 1744, Oct. 2003.

·       H. Lee and P. K. T. Mok, “Active-feedback frequency-compensation technique for low-power multistage amplifiers,” IEEE Journal of Solid-State Circuits (JSSC), vol. 38, pp. 511 - 520, Mar. 2003.

Referred Conference Publications

·       S. Guo, H. Lee, and P. Loizou, A 9-bit configurable current source with enhanced output resistance for cochlear stimulators,IEEE Custom Integrated Circuits Conference, Sep. 2008, accepted for publication.

·       M. Du and H. Lee, A 2.5MHz, 97%-accuracy on-chip current sensor with dynamically-biased shunt feedback for current-mode switching dc-dc converters,IEEE International Symposium on Circuits and Systems, May 2008, accepted for publication.

·       X. Zhang and H. Lee, An 88%-power efficiency accuracy-enhanced dc-dc conversion system for transcutaneous-powered cochlear implants, IEEE Biomedical Circuits and Systems Conference, Montreal, Canada, Nov. 2007, accepted for publication.

·       M. Du and H. Lee, A speed- and accuracy-enhanced on-chip current sensor with local shunt feedback for current-mode switching dc-dc converters,IEEE Dallas Circuits and Systems Workshop, Nov. 2007, accepted for publication.

·       S. Guo and H. Lee, An efficiency-enhanced integrated CMOS rectifier with comparator-controlled switches for transcutaneous powered implants, in Proc. IEEE Custom Integrated Circuits Conference, Sep. 2007, pp. 385 - 388.

·       S. Guo and H. Lee, An area-efficient three-stage amplifier with dual active-capacitive-feedback compensation, in Proc. IEEE International Symposium on Circuits and Systems, May 2007, pp. 2188 - 2192.

·       A. P. Lobo, P. C. Loizou, N. Kehtarnavaz, M. Torlak, H. Lee, A. Sharma, P. Gilley, V. Peddigari, and L. Ramanna, A PDA-based research platform for cochlear implants, in Proc. International IEEE/EMBS Conference on Neural Engineering, May 2007, pp. 28 - 31.

·       H. Lee, Power-efficient inductorless power management ICs for portable applications, CMOS Emerging Technologies Workshop, Whistler, BC, Canada, Jul. 2007. (Invited)

·       M. Al-Shyoukh, R. A. Perez, and H. Lee, “A transient-enhanced 20mA-quiescent 200mA-load low-dropout regulator with buffer impedance attenuation,” in Proc. IEEE Custom Integrated Circuits Conference, Sep. 2006, pp. 615 - 618.

·       S. Guo and H. Lee, A low-power active substrate-noise decoupling circuit with feedforward compensation for mixed-signal SoCs, in Proc. IEEE International Symposium on Low Power Electronics and Design, Oct. 2006, pp. 322 - 325.

·       S. Kwon and H. Lee, A 1.2V, 3.5µW, 20MS/s, 8-bit comparator with dynamic-biasing preamplifier, in Proc. IEEE International Symposium on Circuits and Systems, May 2006, pp. 4767 - 4770.

·       J. Choi, J. Liu, and H. Lee, A constant power limit feedforward control circuit for flyback converters, in Proc. IEEE Applied Power Electronics and Exposition, Mar. 2006, pp. 19 - 23.

·       G. B. Zhang, H. Lee, and J. Liu, A 35nW/pixel 2D visual motion sensor, in Proc. European Solid-State Circuits Conference, Sep. 2005, pp. 419 - 422.

·       X. F. Lin, H. Lee, and J. Liu, A continuous-time adaptive FIR equalizer with INV-AIL delay line for 2.5Gb/s data communication, in Proc. IEEE Custom Integrated Circuits Conference, Sep. 2005, pp. 413 - 416.

·       H. Lee, K. N. Leung, and P. K. T. Mok, Low-voltage analog circuit techniques using bias-current re-utilization, self-biasing and signal superposition, in Proc. IEEE International Conference on Electronic Devices and Solid-State Circuits, Dec. 2005, pp. 533 - 536.

·       H. Lee and P. K. T. Mok, “A SC dc-dc converter with pseudo-continuous output regulation using a three-stage switchable opamp,” in IEEE International Solid-State Circuits Conference Dig. Tech. Papers, Feb. 2005, pp.288 - 289.

·       H. Lee and P. K. T. Mok, “Switching noise reduction techniques for switched-capacitor voltage doubler,” in Proc. IEEE Custom Integrated Circuits Conference, Sep. 2003, pp. 693 - 696.

·       H. Lee and P. K. T. Mok, “Active-feedback frequency compensation for low-power multi-stage amplifiers,” in Proc. IEEE Custom Integrated Circuits Conference, May 2002, pp. 325 - 328. (Best Student Paper Award)

·       H. Lee and P. K. T. Mok, “Single-point-detection slew-rate enhancement circuits for single-stage amplifiers,” in Proc. IEEE International Symposium on Circuits and Systems, vol. II, May 2002, pp. 831 - 834.

·       H. Lee and P. K. T. Mok, “A CMOS current-mirror amplifier with compact slew rate enhancement circuit for large capacitive load applications,” in Proc. IEEE International Symposium on Circuits and Systems, vol. I, May 2001, pp. 220 - 223.

·       H. Lee and P. K. T. Mok, “A novel voltage-control scheme for low-voltage dc-dc converters with fast transient recovery,” in Proc. IEEE International Symposium on Circuits and Systems, vol. I, May 2000, pp. 256 - 259.

Dissertations

·       H. Lee, “Design of voltage-mode switching dc-dc converters with fast dynamic response,” Master Thesis, HKUST 2000.

·       H. Lee, “Design techniques of high-performance CMOS regulated switched-capacitor power converters,” Ph.D. Thesis, HKUST 2004.