Power Electronics for Low-Power, Battery-Operated Systems

ECE Department, University of Colorado, Boulder, CO 80309-0425

Phone: (303)492-4863, Fax: (303)492-2758, maksimov@colorado.edu

The objectives are to develop power conversion, analog and digital electronics for battery-operated, portable systems such as wireless communications, portable computers, or implantable medical devices, where low power consumption is a key performance criterion. Three approaches are pursued: (1) Energy-recovery (adiabatic) digital VLSI with integrated power conversion; (2) switched-capacitor dc-dc converters; (3) control and design techniques for PWM dc-dc converters with synchronous rectification.

Updated: February 23, 1998

Collaborators:

Prof. Vojin Oklobdzija, University of California, Davis, vojin@ece.ucdavis.edu

Prof. Marek S. Makowski, Faculty of Electronics, Technical University of Gdansk, Poland, makowsms@pg.gda.pl

Prof. Robert Erickson, University of Colorado, Boulder, rwe@schof.colorado.edu

Graduate students:

Barry Arbetter, M.S., University of Colorado, Boulder, 1996, arbetteb@rtt.colorado.edu

Brede Arntzen, M.S., University of Colorado, Boulder, 1995.

Publications:

B.Arbetter, D.Maksimovic, "DC-DC converter with fast transient response and high efficiency for low-voltage microprocessor loads," IEEE Applied Power Electronics Conference, 1998, pp.156-162.
Dragan Maksimovic, Vojin G. Oklobdzija, Borivoje Nikolic, K. Wayne Current, "Clocked CMOS Adiabatic Logic with Integrated Single-Phase Power-Clock Supply: Experimental Results," International Symposium on Low Power Electronics and Design, Monterey, CA August 18 - 20, 1997, pp.323-327.
D. Maksimovic, V. G. Oklobdzija, B. Nikolic, K. Wayne Current, "Design and Experimental Verification of a CMOS Adiabatic Logic with Single-Phase Power-Clock Supply", Proceedings of the 40th Midwest Symposium on Circuits and Systems, August 3-6, 1997, Sacramento, California.
B.Arbetter, D.Maksimovic, "Control method for low-voltage dc power supply in battery-powered systems with power management," 1997 IEEE Power Electronics Specialists Conference, St.Louis, Missouri, June 22-27, 1997, pp.1198-1204.
W. Current, V. G. Oklobdzija, D. Maksimovic, "On Adiabatic Multiple Valued Logic Circuits", Journal of Multiple Value Logic, Vol.2, Gordon and Breach Publishing, pp.329-347, 1997.
V. G. Oklobdzija, D. Maksimovic, F. Lin, "Pass-transistor adiabatic logic using single power-clock supply," IEEE Transactions on Circuits and Systems, Part II, Vol.44, No.10, pp.842-846. October 1997.
K. W. Current, V. G. Oklobzija, D. Maksimovic, "Low-energy logic circuit techniques for multiple-valued logic," 26th International Symposium on Multiple Valued Logic, 1996.
D. Maksimovic, V. G. Oklobdzija, "Clocked CMOS adiabatic logic with single ac power supply," 21st European Solid-State Circuits Conference, ESSCIRC'95, 19-21 September 1995, Lille, France.
D. Maksimovic, V. G. Oklobdzija, "Integrated Power Clock Generators for Low Energy Logic," IEEE Power Electronics Specialists Conference, Atlanta, GA, June 18-22, 1995, pp. 61-67.
B. Arntzen, D. Maksimovic, "Switched-capacitor dc-dc converter with resonant gate drive," 1996 IEEE PESC, pp. 414-420.
M. S. Makowski, D. Maksimovic, "Performance Limits of Switched-Capacitor DC-DC Converters," IEEE Power Electronics Specialists Conference, Atlanta, GA, June 18-22, 1995, pp. 1215-1221.
D. Maksimovic and M. S. Makowski, "Bounds on synthesis of switched-capacitor DC-DC voltage multipliers," Proceedings of the International Conference on Power Electronics and Motion Control, PEMC'94, September 1994, Warsaw, Poland.
B. Arbetter, R. Erickson, D. Maksimovic, "DC-DC Converter Design for Battery Operated Systems," IEEE Power Electronics Specialists Conference, Atlanta, GA, June 18-22, 1995, pp. 103-109.
Robert Erickson and Dragan Maksimovic, "High-Efficiency DC-DC Converters for Battery-Operated Systems with Energy Management," Wireless Communication Issue, Annual Reviews on Telecommunications, 1995.
Dragan Maksimovic, "Design of the Zero-Voltage-Switching Quasi-Square-Wave Resonant Switch," IEEE Power Electronics Specialists Conference, 1993 Record, pp. 323-329.