Publications
Referred
Journal Articles
·
S.
Guo and H. Lee, “Single-capacitor active-feedback compensation for
small-capacitive-load three-stage amplifiers,” IEEE Transactions on Circuits and Systems-II (TCAS-II), accepted
for publication.
·
M.
Al-Shyoukh and H. Lee, “A compact ramp-based soft-start circuit for
voltage regulators,” IEEE
Transactions on Circuits and Systems-II (TCAS-II), vol. 56, no. 7, pp. 535
– 539, Jul. 2009.
·
S.
Guo and H. Lee, “An efficiency-enhanced CMOS rectifier with unbalanced-biased
comparators for transcutaneous-powered high-current
implants,” IEEE Journal of
Solid-State Circuits (JSSC), vol. 44, no. 6, pp. 1796 – 1804, Jun.
2009.
·
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, no. 8, 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, no. 6, 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, no. 8, 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, no. 9,
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, no. 5, 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, no. 9, 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, no. 10, 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, no. 3, pp. 511 -
520, Mar. 2003.
Referred
Conference Articles
·
T. Duryea and H. Lee, “Compact temperature compensation of inductive
fly-back clamps for integrated power switches using a high-voltage
base-current-compensated VBE multiplier,” IEEE
Applied Power Electronics Conference and Exposition, Palm Springs, CA, USA,
Feb. 2010, accepted for publication.
·
S. Guo and H. Lee, “Biphasic-current-pulse self-calibration
techniques for monopolar current stimulation,” IEEE Biomedical Circuits and Systems Conference, Nov.
2009, accepted for publication.
·
X. Zhang and H. Lee, “An efficiency-enhanced auto-reconfigurable 2x/3x
SC charge pump for transcutaneous power transmission,” IEEE Custom Integrated Circuits Conference, Sep.
2009, accepted for publication.
·
S. Guo, H. Lee, and P. Loizou, “A 9-bit configurable current source with enhanced output resistance for
cochlear stimulators,”in Proc. IEEE Custom Integrated Circuits Conference, Sep.
2008, pp. 511 - 513.
·
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,”in Proc. IEEE International Symposium on Circuits and
Systems, May 2008, pp. 3274 - 3277.
·
X. Zhang and H. Lee, “An
88%-power efficiency accuracy-enhanced dc-dc conversion system for transcutaneous-powered cochlear implants,” in Proc.
IEEE
Biomedical Circuits and Systems Conference,
Montreal, Canada, Nov. 2007, pp. 126 - 129.
·
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,”in Proc. IEEE Dallas Circuits
and Systems Workshop, Nov. 2007, pp. 129 - 132.
·
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,
·
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.