Charles R. Sullivan

Associate Professor of Engineering

Thayer School of Engineering, Dartmouth College

8000 Cummings Hall, Hanover, NH 03755

charles.r.sullivan@dartmouth.edu

Voice: +1-603-646 2851, Fax: +1-603-646 3856

 

Education:

University of California, Berkeley, Ph.D. in Electrical Engineering and Computer Sciences, 1996. Minor in Energy and Resources.

Princeton University, B.S. with highest honors, Electrical Engineering, June 1987.

Ph.D. Thesis: Microfabrication of Magnetic Components for High Frequency Power Conversion.

ASEE National Effective Teaching Institute, June, 1997.

Engineering and Teaching Experience:

Associate Professor of Engineering, Thayer School of Engineering, Dartmouth College, 2002-present; Assistant Professor 1996-2002.

Graduate Student Instructor, University of California, Berkeley. Developed laboratory equipment and experiments for new undergraduate power electronics class, taught laboratory sections, 1994.

Design and Development Engineer, Lutron Electronics Co., Inc., Coopersburg, PA. Researched and designed a new high-frequency electronic dimming ballast for compact fluorescent lamps. Work included high-frequency magnetics design, resonant power conversion, and design for low cost and manufacturability, 1987-1990.

Power Electronics Group Leader, CalSol, the UC Berkeley Solar-Powered Vehicle Race Team. Designed and built the electrical system of a solar-powered race vehicle, 1991-1993.

Chief Engineer, Princeton Broadcasting Service. Upgraded and maintained broadcast and studio equipment for WPRB, a student-run 17-kilowatt commercial FM broadcasting station, 1984-1987.

Instructional Aide, Princeton Regional Schools. Gave lectures and led laboratories for high school physics class, 1985-1986.

Awards:

Thayer School Excellence in Teaching Award, 2005

Sigma Xi, 2001

IEEE Power Electronics Society Prize Paper Award, 2000

NSF CAREER Award, 1999

Ross N. Tucker AIME Electronics Materials Award, 1995.

National Science Foundation Graduate Fellowship, 1990-1993.

Princeton University G. David Forney, Jr. Prize in electrical engineering, 1987.

Phi Beta Kappa, 1987.

Tau Beta Pi, 1985.

Princeton University Manfred Pyka Memorial Physics Prize, 1984.

Professional Activities:

Memberships and offices:

Institute of Electrical and Electronics Engineers (IEEE):

Power Electronics Society

Associate Editor, IEEE Transactions on Power Electronics

Industry Applications Society
Awards Chair, Power Electronics Devices and Components Committee

Also a member of Magnetics Society, Industrial Electronics Society, Social Implications of Technology Society, Power Engineering Society.

 

Consulting: Volterra Semiconductor Corp., Northern Power Systems.

Publications:

Journal Articles

V. F. Petrenko, C. R. Sullivan, V. Kozlyuk, “Variable-resistance conductors (VRC) for power-line de-icing,” Cold Regions Science and Technology, 65, (1), January 2011, pp. 23-28 .

V. F. Petrenko, C.R. Sullivan, V. Kozlyuk, F. V. Petrenko, V. Veerasamy, “Pulse electro-thermal de-icer (PETD),” Cold Regions Science and Technology, 65, (1), January 2011, pp. 70-78.

A. Muetze and C. R. Sullivan, "Simulation and Measurement of Common-Mode Chokes for High-Power Applications", IEEE Transactions on Industry Applications, 46(2), 2010, pp. 884 - 891.

A. Besri, B. Delinchant, J.P. Keradec, C.R Sullivan, “Simulation and optimization tool for high-frequency planar transformers based on 1D analytical modeling,” International Journal of Applied Electromagnetics and Mechanics 30( 3-4) Sept. 2009, pp. 223–236.

Di Yao and C.R. Sullivan, “Calculation of eddy-current loss in multilayer magnetic films considering displacement current,” Journal of Applied Physics, 105 (7), pp. 07A335-07A335-3, April 2009.

Xi Nan and C. R. Sullivan "An Equivalent Complex Permeability Model for Litz-Wire Windings."  IEEE Transactions on Industry Applications.  45(2),  March-April 2009, pp. 854 – 860.

C.R. Sullivan, "Aluminum Windings and Other Strategies for High-Frequency Magnetics Design in an Era of High Copper and Energy Costs." IEEE Transactions on Power Electronics, 23(4) July 2008

JB Weaver, AM Rauwerdink, CR Sullivan, I Baker.  "Frequency distribution of the nanoparticle magnetization in the presence of a static as well as a harmonic magnetic field,"  Medical Physics   35,1988-1994 (2008).   Also appears in Virtual Journal of Nanoscale Science & Technology, May 5, 2008  Volume 17, Issue 18. 

Yuqin Sun, C. R. Sullivan, Weidong Li, D. P. Kopp, F. Johnson and S. T. Taylor, “Soft Magnetic Properties of Obliquely Deposited Co-Zr-O Films.”  IEEE Transactions on Magnetics, 43(12), Dec. 2007, pp. 4060-4063.

P. Keblinski, D.G. Cahill, A. Bodapati, C. R. Sullivan, and T. A. Taton, “Limits of Localized Heating by Electromagnetically Excited Nanoparticles.”  Journal of Applied Physics, Volume 100, Issue 5, pp. 054305-054305-5, 2006.

Baker, Qi Zeng, Weidong Li, and C.R. Sullivan “Heat deposition in iron oxide and iron nanoparticles for localized hyperthermia.” Journal of Applied Physics 99(08H106), 2006.

M.V. Tyurin,  C. R. Sullivan and L.R. Lynd.  “Role of spontaneous current oscillations during high-efficiency electrotransformation of thermophilic anaerobes.”  Applied and Environmental Microbiology. 71(12), Dec. 2005, pp. 8069-76.

Weidong Li, Yuqin Sun and C.R. Sullivan.  “High-Frequency Resistivity of Soft Magnetic Granular Films.”  IEEE Transactions on Magnetics, 41(10), Oct. 2005, pp. 3283–3285.

Yuqin Sun, Weidong Li, P. Dhagat,and C.R. Sullivan, “Perpendicular anisotropy in granular Co-Zr-O films.” Journal of Applied Physics,  97(10), May 2005, p. 10N301.

S. Prabhakaran, T. O'Donnell, C.R. Sullivan, M. Brunet, S. Roy, C. O'Mathuna.  “Microfabricated coupled inductors for integrated power converters.” Journal of Magnetism and Magnetic Materials, vol.290-291, April 2005, pp. 1343-6.

P. Dhagat, S. Prabhakaran, and C.R. Sullivan.  “Comparison of Magnetic Materials for V-Groove Inductors and MOSFETs in Optimised High-Frequency DC-DC Converters.”  IEEE Transactions on Magnetics, 40(4), July 2004, pp. 2008-2010

C. R. Sullivan, S. Prabhakaran, P. Dhagat, and Yuqin Sun.  “Thin-Film Inductor Designs and Materials for High-Current Low-Voltage Power.”  Transactions of the Magnetics Society of Japan, 3(4), Dec. 2003, pp.126-8.

S. Prabhakaran, C.R. Sullivan, and K. Venkatachalam.  “Measured electrical performance of V-groove inductors for microprocessor power delivery.”  IEEE Transactions on Magnetics, 39(5), Sept. 2003, pp. 3190 -3192.

Sullivan, C.R.; Petrenko, V.F.; McCurdy, J.D.;V. Kozliouk, “Breaking the ice: de-icing power transmission lines with high-frequency, high-voltage excitation.”  IEEE Industry Applications Magazine, 9(5), Sept.-Oct. 2003, pp. 49 -54.

Jiankun Hu, C.R. Sullivan. "AC Resistance of Planar Power Inductors and the Quasidistributed Gap Technique." IEEE Transactions on Power Electronics, 16(4), July 2001, pp. 558 -567.

C.R. Sullivan. "Cost-Constrained Selection of Strand Size and Number in a Litz-Wire Transformer Winding." IEEE Transactions on Power Electronics, 16(2), March 2001, pp. 281-288.

C.R. Sullivan "Computationally Efficient Winding Loss Calculation with Multiple Windings, Arbitrary Waveforms, and Two- or Three-Dimensional Field Geometry."   IEEE Transactions on Power Electronics 16(1), January 2001, pp. 142 -150.

K.D. Coonley, G.J. Mehas, C.R. Sullivan, U.J. Gibson.  "Evaporatively Deposited Co-MgF2 Granular Materials for Thin-Film Inductors." IEEE Transactions on Magnetics, 36(5), September 2000, pp. 3463-3465.

C.R. Sullivan.  "Optimal Choice for Number of Strands in a Litz-Wire Transformer Winding." IEEE Transactions on Power Electronics, 14(2), March 1999, pp. 283-291.

L. Daniel, C.R. Sullivan and S.R. Sanders. "Design of Microfabricated Inductors," IEEE Transactions on Power Electronics, 14(4), July 1999, pp. 709-723.

H. Hofmann, S.R. Sanders, and C.R. Sullivan. "Stator-Flux-Based Vector Control of Induction Machines in Magnetic Saturation," IEEE Transactions on Industry Applications, 33(4), July/August 1997. pp. 935-42.

C.R. Sullivan, S.R. Sanders. "A Soft-Switched Constant-Frequency Square-Wave Half-Bridge DC-DC Converter." IEEE Transactions on Aerospace and Electronic Systems, 33(2), pp. 456-463, April 1997.

C.R. Sullivan, S.R. Sanders. "Design of Microfabricated Transformers and Inductors for High Frequency Power Conversion." IEEE Transactions on Power Electronics, March 1996, vol. 11, no. 2, pp. 228-38.

C.R. Sullivan, C. Kao, B. Acker, and S.R. Sanders. "Control Systems for Induction Machines with Magnetic Saturation." IEEE Transactions on Industrial Electronics, Feb. 1996, vol. 43, no. 1, pp. 142-52.

C.R. Sullivan, S.R. Sanders. "Models for Induction Machines With Magnetic Saturation of the Main Flux Path." IEEE Transactions on Industry Applications, July-Aug. 1995, vol. 31, no. 4, pp. 907-17.

C.R. Sullivan. "Extending the Karplus-Strong Algorithm to Synthesize Electric Guitar Timbres with Distortion and Feedback." Computer Music J., Vol. 14, No. 3, 1990, pp. 26-37.

Refereed Conference Proceedings

C.R. Sullivan, J.J.Awerbuch, A.M. Latham, “Decrease in Photovoltaic Power Output from Ripple: Simple General Calculation and Effect of Partial Shading,” IEEE Applied Power Electronics Conference, March, 2011.

J.D. Pollock, W. Lundquist, and C.R. Sullivan “The Design of Barrel-Wound Foil Windings with Multiple Layers Interchanged to Balance Layer Currents,”  IEEE Applied Power Electronics Conference, March, 2011.

Jizheng Qiu, C.R. Sullivan, “Inductor Design for VHF Tapped-Inductor DC-DC Power Converters,” IEEE Applied Power Electronics Conference, March, 2011.

A.M. Latham, C.R. Sullivan, and Kofi Odame, “Performance of Photovoltaic Maximum Power Point Tracking Algorithms in the Presence of Noise,” IEEE Energy Conversion Conference and Exposition, Sept. 2010.

A. Trubitsyn, B.J. Pierquet, A.K. Hayman,  G.E. Gamache, C.R. Sullivan, D.J. Perreault, “High-Efficiency Inverter for Photovoltaic Applications,” IEEE Energy Conversion Conference and Exposition, Sept. 2010.

A.M. Latham and C.R. Sullivan, “Optimization of a Continuous-Time Maximum Power Point Tracking Algorithm in the Presence of Noise,”  Twelfth IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), June, 2010.

D. R. Zimmanck and C.R. Sullivan, “Efficient Calculation of Winding Loss Resistance Matrices for Magnetic Components,” Twelfth IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), June, 2010.

J. J. Awerbuch and C.R. Sullivan, “Phase-Shift Hazards in Filter-Based Power Splitting in Ultracapacitor-Battery Hybrids for Vehicular Applications,” Twelfth IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), June, 2010.

Di Yao and C. R. Sullivan, “Optimization of V-Groove Inductors Using Multilayer Co-Zr-O Thin Films in a 10 MHz to 300 MHz DC-DC Converter,” Twelfth IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), June, 2010.

C.R. Sullivan and M.J. Franklin, “An Extended Driving Simulator Used to Motivate Analysis of Automobile Fuel Economy,” ASEE Northeast Section Conference, May 2010.

C.R. Sullivan, J.H. Harris and E. Herbert , "Core loss predictions for general PWM waveforms from a simplified set of measured data," Twenty-Fifth Annual IEEE Applied Power Electronics Conference, pp.1048-1055, 2010

Di Yao and C.R. Sullivan, “Effect of Capacitance on Eddy-Current Loss in Multi-Layer Magnetic Films for MHz Magnetic Components,” IEEE Energy Conversion Conference and Exposition, Sept. 2009.

C.R. Sullivan, “Integrating Magnetics for On-Chip Power: Challenges and Opportunities,” Invited talk and refereed paper.  IEEE Custom Integrated Circuits Conference, Sept. 2009. 

David J. Perreault, Jingying Hu, Juan M. Rivasy, Yehui Han, Olivia Leitermann, Robert C.N. Pilawa-Podgurski, Anthony Sagneri, and Charles R. Sullivan.  “Opportunities and Challenges in Very High Frequency Power Conversion.”  Invited plenary paper, IEEE Applied Power Electronics Conference, Feb. 2009.

Jonathan J. Awerbuch and C.R. Sullivan, “Control of Ultracapacitor-Battery Hybrid Power Source for Vehicular Applications,”  IEEE Conference on Global Sustainable Energy Infrastructure, Energy2030, Nov. 2008.

M. Nigam and C. R. Sullivan, “Multi-Layer Barrel-Wound Foil Winding Design,” IEEE Industry Applications Society Annual Meeting, Oct. 2008.

A. Besri, B. Delinchant, J-P Keradec, C.R Sullivan, “Lumped parameter modeling to improve planar transformers design,” 10th International Workshop on Optimization and Inverse Problems in Electromagnetism, Sept., 2008.

Yehui Han, An Li, Grace Cheung, C.R. Sullivan and D.J. Perreault, “Evaluation of Magnetic Materials for Very High Frequency Power Applications,” IEEE Power Electronics Specialists’ Conference, June 2008.

J.D. Pollock and C.R. Sullivan, “Loss Models for Shaped Foil Windings on Low-Permeability Cores,”  IEEE Power Electronics Specialists’ Conference, June 2008.

H. Mukadam, C.R. Sullivan and S. Prabhakaran, “A High-Field High-Frequency Permeance Meter For Thin-Film Materials,” IEEE Power Electronics Specialists’ Conference, June 2008.

M. Nigam and C. R. Sullivan, “"Multi-Layer Folded High-Frequency Toroidal Inductor Windings", IEEE Applied Power Electronics Conference, Feb. 2008.

A. Muetze and C. R. Sullivan, "Simulation and Measurement of Common-Mode Chokes for High-Power Applications", IEEE Industry Applications Society Annual Meeting, Oct. 2007.

Shanshan Lu, Yuqin Sun, M. Goldbeck, D. R. Zimmanck and C. R. Sullivan, “30-MHz Power Inductor Using Nano-Granular Magnetic Material”,  IEEE Power Electronics Specialists’ Conference, June 2007.

C. R. Sullivan, S. Prabhakaran, Weidong Li and Shanshan Lu, “Design and Fabrication of Low-Loss Toroidal Air-Core Inductors”, IEEE Power Electronics Specialists’ Conference, June 2007.

C.R. Sullivan.  “Aluminum Windings and Other Strategies for High-Frequency
Magnetics Design in an Era of High Copper and Energy Costs.”  IEEE Applied Power Electronics Conference, Feb. 2007

J. D. Pollock and C.R. Sullivan. “Optimized Magnetic Components Improve Efficiency of Compact Fluorescent Lamps.”  IEEE Industry Applications Society Annual Meeting, Oct. 2006.

M.E. Dale and C.R. Sullivan  “Comparison of Loss in Single-Layer and Multi-Layer Windings with a DC Component." IEEE Industry Applications Society Annual Meeting, Oct. 2006.

A. Muetze and C.R. Sullivan  “Simplified Design of Common-Mode Chokes for Reduction of Motor Ground Currents in Inverter Drives." IEEE Industry Applications Society Annual Meeting, Oct. 2006.

M.E. Dale and C.R. Sullivan.  “Comparison of Single-Layer and Multi-Layer Windings with Physical Constraints or Strong Harmonics.”  IEEE International Symposium on Industrial Electronics, July 2006.

Xi Nan and C.R. Sullivan, “An equivalent complex permeability model for litz-wire windings,” Fourtieth IEEE Industry Applications Society Annual Meeting, Oct. 2005, pp. 2229–2235.

K. W. Benson, D.A. Fraser, S.L. Hatridge, C.A. Monaco, R.J. Ring, C.R. Sullivan, and P.C. Taber, “The Hybridization of a Formula Race Car.”  IEEE Vehicle Power and Propulsion Conference, Sept. 2005.

Xi Nan and C.R Sullivan. “A Two-Dimensional Equivalent Complex Permeability Model for Round-Wire Windings.”  IEEE Power Electronics Specialists’ Conference, June 2005. 

J.D. Pollock and C.R. Sullivan. “Modelling Foil Winding Configurations with Low AC and DC Resistance.”  IEEE Power Electronics Specialists’ Conference, June 2005. 

S. Prabhakaran, Yuqin Sun, P. Dhagat, Weidong Li and C.R. Sullivan. “Microfabricated V-Groove Power Inductors for High-Current Low-Voltage Fast-Transient DC-DC Converters.”  IEEE Power Electronics Specialists’ Conference, June 2005. 

M.E. Dale and C.R. Sullivan “General Comparison of Power Loss in Single-Layer and Multi-Layer Windings.”  IEEE Power Electronics Specialists’ Conference, June 2005.

T. Grafendorfer, S. M. Conolly, C. R. Sullivan, A. Macovski, G. Scott, “Can Litz Coils benefit SNR in Remotely Polarized MRI?”  International Society for Magnetic Resonance in Medicine 13th Scientific Meeting, May 2005.

J. Pollock and C.R. Sullivan “Gapped-Inductor Foil Windings with Low AC and DC Resistance.”  IEEE Industry Applications Society Annual Meeting, Oct. 2004, pp. 557-663.

K. Tupper, R. Jensen, J. Cloyd, R. Wills, and C.R. Sullivan.  “Optimization of Hybrid Power System Operation.”  Proceedings of ISEC 2004:  Solar 2004.  July 2004

S. Prabhakaran, T. O'Donnell, C. O'Mathuna, and C.R. Sullivan. “Microfabricated Coupled-Inductors for DC-DC Converters for Microprocessor Power Delivery.”  IEEE Power Electronics Specialists Conference, June 2004, pp. 4467 – 4472.

Xu Tang and C. R. Sullivan, “Optimization of Stranded-Wire Windings and Comparison with Litz Wire on the Basis of Cost and Loss.”  IEEE Power Electronics Specialists Conference, June 2004, pp. 854 – 860.

Xi Nan and C. R. Sullivan, “Simplified High-Accuracy Calculation of Eddy-Current Losses in Round-Wire Windings.”  IEEE Power Electronics Specialists Conference, June 2004, pp. 873 - 879.

Jieli Li, A.J. Stratakos, A. Schultz, C.R. Sullivan.   “Using Coupled Inductors to Enhance Transient Performance of Multi-Phase Buck Converters.”  IEEE Applied Power Electronics Conference, Feb. 2004, pp. 1289 - 1293.

C. R. Sullivan and Yuqin Sun. “Physically-Based Distributed Models for Multi-Layer Ceramic Capacitors.”  IEEE Topical Meeting on Electrical Performance of Electronic Packaging, Oct. 2003, pp. 185-188.

J. Czogalla, Jieli Li, and C.R. Sullivan, “Automotive Application of Multi-Phase Coupled-Inductor DC-DC Converter,” IEEE Industry Applications Society Annual Meeting, Oct. 2003.

Xi Nan and C. R. Sullivan, “An Improved Calculation of Proximity-Effect Loss in High-Frequency Windings of Round Conductors.”  IEEE Power Electronics Specialists Conference, June 2003.

Xu Tang and C.R. Sullivan. “Stranded Wire With Uninsulated Strands as a Low-Cost Alternative to Litz Wire.”  IEEE Power Electronics Specialists Conference, June 2003.

C.R. Sullivan. “Three-Dimensional Animations of Power-Electronics Circuits Visualize Voltage and Current.”  IEEE Power Electronics Specialists Conference, June 2003.

R. Jensen and C. R. Sullivan, “Optimal Core Dimensional Ratios for Minimizing Winding Loss in High-Frequency Gapped-Inductor Windings,” IEEE Applied Power Electronics Conference, Feb. 2003, pp. 1164 -1169.

J. Pollock, T. Abdallah and C. R. Sullivan, “Easy-To-Use CAD Tools for Litz-Wire Winding Optimization,” IEEE Applied Power Electronics Conference, Feb. 2003, pp. 1157 -1163.

S. Prabhakaran and C.R. Sullivan.  “Impedance-Analyzer Measurement of High-Frequency Power Passives:  Techniques for High Power and Low Impedance.”  IEEE Industry Applications Society Annual Meeting, Pittsburgh, Oct. 2002, pp. 1360 -1367.

C.R. Sullivan and A.M. Kern.  "Improved Distributed Model for Capacitors in High-Performance Packages.”  IEEE Industry Applications Society Annual Meeting, Pittsburgh, Oct. 2002, pp. 969 -976.

K. Venkatachalam, C.R. Sullivan, T. Abdallah, and H. Tacca.  “Accurate Prediction of Ferrite Core Loss with Nonsinusoidal Waveforms Using Only Steinmetz Parameters.”  IEEE Workshop on Computers in Power Electronics, Mayaguez, Puerto Rico, June 2002.

S. Prabhakaran, C.R.Sullivan, C.G.Levey, and K. Venkatachalam. “Fabrication of Thin Film V-Groove Inductors using Composite Magnetic Materials.”  IMAPS Advanced Technology Workshop (ATW) on Passive Integration, Ogunquit, Maine, June 2002.

C.R. Sullivan.  “Three Dimensional Circuit Animation Visualizes Voltage.”  ASEE 2002 Annual Conference, Montreal, June 2002.

Jieli Li and C.R. Sullivan.  “Coupled Inductor Design Optimization for Fast-Response Low-Voltage DC-DC Converters.”  IEEE Applied Power Electronics Conference, Dallas, March 2002.

A.F. Hoke and C.R. Sullivan.  “An Improved Two-Dimensional Numerical Modeling Method for E-Core Transformers.”  IEEE Applied Power Electronics Conference, Dallas, March 2002.

Jieli Li, T. Abdallah, C.R. Sullivan.  "Improved Calculation of Core Loss With Nonsinusoidal Waveforms."  IEEE Industry Applications Society Annual Meeting, Oct. 2001, Chicago, pp. 2203-2210.

J.D. McCurdy, C.R. Sullivan, V.F. Petrenko.  "Using Dielectric Losses to De-Ice Power Transmission Lines with 100 kHz High-Voltage Excitation."  IEEE Industry Applications Society Annual Meeting, Oct. 2001, Chicago, pp. 2515-2519.

C.R. Sullivan, A.M. Kern.  "Capacitors with Fast Switching Require Distributed Models."  IEEE Power Electronics Specialists Conference, Vancouver, BC, June 2001.

C.R. Sullivan, J.D. McCurdy, R.A. Jensen.  "Analysis of Minimum Cost in Shape-Optimized Litz-Wire Inductor Windings."  IEEE Power Electronics Specialists Conference, Vancouver, BC, June 2001.

C.R. Sullivan, T. Abdallah, and T. Fujiwara.  "Optimization of a Flyback Transformer Winding Considering Two-Dimensional Field Effects, Cost and Loss."  IEEE Applied Power Electronics Conference, Anaheim, CA, March 2001.

S. Prabhakaran, D.E. Kreider, Yu Lin, C.R. Sullivan.  "Fabrication of Thin-Film V-Groove Inductors Using Composite Magnetic Materials."  IEEE International Workshop on Integrated Power Packaging, Waltham, MA, July 2000, pp. 102-5.

G.J. Mehas, K.D. Coonley, and C.R. Sullivan. "Converter and Inductor Design for Fast-Response Microprocessor Power Delivery."  IEEE Power Electronics Specialists Conference, June 2000, Galway, Ireland, pp. 1621-1626.

C.R. Sullivan, "Winding Loss Calculation with Multiple Windings, Arbitrary Waveforms and Two-Dimensional Field Geometry." IEEE Industry Applications Society Annual Meeting, Oct. 1999, Phoenix, pp. 2093-2099.

Jiankun Hu and C.R. Sullivan, "Analytical Method for Generalization of Numerically Optimized Inductor Winding Shapes." IEEE Power Electronics Specialists Conference, June 1999, Charleston, pp. 568-573.

G.J. Mehas, K.D. Coonley, and C.R. Sullivan. "Design of Microfabricated Inductors for Microprocessor Power Delivery". IEEE Applied Power Electronics Conference, March 1999, Dallas, pp. 1181-1187.

C.R. Sullivan. "Cost-Constrained Selection of Strand Wire and Number in a Litz-Wire Transformer Winding." IEEE Industry Applications Society Annual Meeting, Oct. 1998, St. Louis, pp. 900-906.

Jiankun Hu and C.R. Sullivan. "Optimization of Shapes for Round Wire, High Frequency Gapped Inductor Windings." IEEE Industry Applications Society Annual Meeting, Oct. 1998, St. Louis, pp. 907-911.

Jiankun Hu and C.R. Sullivan. "The Quasi-Distributed Gap Technique for Planar Inductors—Design Guidelines." IEEE Industry Applications Society Annual Meeting, Oct. 1997, New Orleans. Vol. 2, pp. 1147-1152.

C.R. Sullivan. "Optimal Choice for Number of Strands in a Litz-Wire Transformer Winding." Plenary presentation, IEEE Power Electronics Specialists Conference, June 1997, St. Louis, pp. 28-35.

C.R. Sullivan and S.R. Sanders. "Measured Performance of a High-Power-Density Microfabricated Transformer in a DC-DC Converter." IEEE Power Electronics Specialists Conference, June 1996, Baveno, Italy, pp. 287-294.

L. Daniel, C.R. Sullivan and S.R. Sanders. "Design of Microfabricated Inductors." IEEE Power Electronics Specialists Conference, June 1996, Baveno, Italy, pp. 1447-1455.

H. Hofmann, S.R. Sanders, and C.R. Sullivan. "Stator-Flux-Based Vector Control of Induction Machines in Magnetic Saturation." IEEE Industry Applications Society Annual Meeting, October 1995, pp. 152-158.

C.R. Sullivan and S.R. Sanders. "Microfabrication Process for High-Frequency Power-Conversion Transformers." IEEE Power Electronics Specialists Conference, June 1995, Atlanta, pp. 658-664.

B. Acker, C.R. Sullivan, and S.R. Sanders. "Synchronous Rectification with Adaptive Timing Control." IEEE Power Electronics Specialists Conference, June 1995, Atlanta, pp. 88-95.

C. Kao, C.R. Sullivan, B. Acker, and S.R. Sanders. "Induction Machine Control Systems with Magnetic Saturation." IEEE Power Electronics Specialists Conference, June 1994, Taipei, Taiwan, pp. 250-258.

C.R. Sullivan "Energy Use: The Most Important Environmental Impact of Electronic Equipment?" IEEE International Symposium on Electronics and the Environment, May 1994, San Francisco, pp. 261-266.

B. Acker, C.R. Sullivan, and S.R. Sanders. "Current-Controlled Synchronous Rectification." IEEE Applied Power Electronics Conference, Feb. 1994, Orlando, pp. 185-191.

C.R. Sullivan and A. C. Drescher. "Influence of On-Time and Use-Frequency on Cost-Effectiveness of Compact Fluorescent Lamps." IEEE Industry Applications Society Annual Meeting, October 1993, Toronto, pp. 2283-2290.

C.R. Sullivan and S.R. Sanders. "Microfabrication of Transformers and Inductors for High Frequency Power Conversion." Plenary Presentation, IEEE Power Electronics Specialists Conference, June 1993, Seattle, pp. 33-40.

C.R. Sullivan, S.R. Sanders. "A Soft-Switched Constant-Frequency Square-Wave Half-Bridge DC-DC Converter." IEEE Power Electronics Specialists Conference, June 1993, Seattle, pp. 158-166.

C.R. Sullivan and M. J. Powers. "A High-Efficiency Maximum Power Point Tracker for Photovoltaic Arrays in a Solar-Powered Race Vehicle." IEEE Power Electronics Specialists Conference, June 1993, Seattle, pp. 574-580.

C.R. Sullivan and S.R. Sanders. "Models for Induction Machines with Magnetic Saturation of the Main Flux Path." IEEE Industry Applications Society Annual Meeting, October 1992, Houston, pp. 123-131.

C.R. Sullivan and S.R. Sanders. "Modeling the Effects of Magnetic Saturation on Electrical Machine Control Systems." IFAC Nonlinear Control Systems Design Symposium, June 1992, Bordeaux, pp. 69-76.

Invited Presentations

"Nanocomposite Magnetics for Integrated Power Delivery", Web Seminar for the Semiconductor Research Corporation Interconnect Focus Center, March 18, 2010.

"Power Magnetics: Emerging Technologies and Research Needs,"  DOE Advanced Research Projects Agency – Energy (ARPA-E) Power Technologies Workshop, Feb. 9, 2010

 “Integrating Magnetics for On-Chip Power: Challenges and Opportunities,” Invited talk and refereed paper.  IEEE Custom Integrated Circuits Conference, Sept. 2009.  (Also listed above under conference proceedings)

“Smart loads as virtual energy storage,” Center for Power Electronics Systems Workshop, Oct. 10, 2008.

“Losses in laminated thin-film magnetic materials considering displacement current,” First International Workshop on Power System-on-Chip, Cork, Ireland, Sept. 23, 2008.

“Accurate Models for Loss in High-Frequency Magnetics,” MIT MIT Laboratory for Electromagnetic and Electronic Systems Seminar,  Dec. 7, 2006.

“Thin-Film Nano-Composite Soft Magnetic Materials for High-Frequency Applications,” MIT Laboratory for Electromagnetic and Electronic Systems Seminar, Dec. 20, 2006.

"Introduction to Power Electronics: Technology and Applications."  Palo Alto Research Center (PARC) March 2006.

"Accurate Models for Loss in High-Frequency Magnetics." Presented Dec. 2005 at the Delft University of Technology, and at the Institute for Power Electronics and Electrical Drives at RWTH Aachen.

Parul Dhagat, Wei-Dong Li, Yuqin Sun, Satish Prabhakaran, and Charles R. Sullivan, “Thick Magnetic Thin Films: Issues in fabrication and performance of 10-micron-thick nano-granular Co-Zr-O films,” 3rd International Workshop on High Frequency Micromagnetic Devices and Materials (MMDM3), April, 2005

 “Nano-composite soft magnetic materials and applications to integrated power conversion.”  Dartmouth Nanomaterials Symposium, Nov. 2004.

“Pulse De-Icing Method.”  Candian Electricity Association Wind and Ice Storm Mitigation Interest Group Meeting.  May 2004.

"Novel Magnetics for Power Applications." PEI Technologies’ Developments in Power Supply Technology Seminar December, 2003.

Panelist on “Integrated DC/DC Conveters,” IEEE Power Electronics Specialists Conference, June 2003.

P. Dhagat, S. Prabhakaran, C. R. Sullivan, and Yuqin Sun, “Thin-Film Inductor Designs and Materials for High-Current Low-Voltage Power,” 2nd International Symposium on High-Frequency Micromagnetic Devices and Materials, April 2003.

"Materials, Modeling and Microfabrication of Inductors and Capacitors for High-Speed, High-Current Power Delivery," Intel Research Council Powerwall Forum, August, 2001.

"Power Line Deicing,"ARO Ice Physics Research Seminar, Thayer School, March 8, 2001.

"Advanced Designs and Materials for Microfabricated Inductors in Microprocessor Power Delivery," Intel Research Council Powerwall Forum, August, 1999.

"Applications of granular metal-nonmetal materials in microfabricated 5-10 MHz power inductors," Conference on Properties and Application of Magnetic Materials, April 1999, Chicago.

"Power and RF Micro Inductors for Mobile Systems," Intel Research Council University Forum IA 2005 Mobile PC Forum. Dec., 1997.

"Micro Magnetics for Powering Mobile Systems," Intel Research Council University Forum Power Wall: Providing Power to Voracious PCs. Sept., 1997.


Other Conference Presentations

C.R. Sullivan, Elsa Garmire, Mana Rodriguez, Derek Brand, and Nick Edwards, "Pico-Hydro Electric Power for Isolated Villages," NCIIA Sustainable Vision Workshop, San Francisco, March 24, 2010.

Di Yao and Charles R. Sullivan, “Calculation of Eddy-Current Loss in Multi-Layer Magnetic Films Considering Displacement Current,”  53rd Annual Conference on Magnetism and Magnetic Materials, Austin TX, Nov. 2008

J.D. Pollock and C.R.Sullivan, “Energy Efficient Power Supplies Reduce Environmental Impact of Electronics,” IEEE International Symposium on Electronics and the Environment, 2006.

Yuqin Sun, Weidong Li, D. Kopp, F. Johnson, S.T. Taylor and C.R. Sullivan, “Soft Magnetic Properties of Obliquely Deposited Co-Zr-O Granular Films.”  IEEE International Magnetics Conference, 2006.

 Y1.I. Baker, Qi Zeng, Weidong Li and C.R. Sullivan.  “Maximizing and Modeling Heat Deposition in Iron Oxide Nanoparticles for Localized Hyperthermia.” 50th Conference on Magnetism and Magnetic Materials.  Nov. 2005.

 T. Grafendorfer, S. M. Conolly, C. R. Sullivan, A. Macovski, G. Scott, “Can Litz Coils benefit SNR in Remotely Polarized MRI?”  International Society for Magnetic Resonance in Medicine 13th Scientific Meeting, May 2005.

Weidong Li, Yuqin Sun, Parul Dhagat and Charles R. Sullivan, “High-Frequency Resistivity of  Soft Magnetic Granular Films.”  IEEE International Magnetics Conference (Intermag), April 2005.

Yuqin Sun Weidong Li, P. Dhagat, and C.R. Sullivan, “Perpendicular anisotropy in Co-Zr-O granular films.” Magnetism and Magnetic Materials Conference, Nov. 2004.

Xi Nan and C.R. Sullivan, “High-Frequency Winding Loss-A Review of Previous Models and An Improved Model.”  Electrical Manufacturing and Coil Winding Conference Proceedings, Sept. 2004.

Weidong Li, Yuqin Sun, P. Dhagat, and C.R. Sullivan, “High-frequency permeability and power loss of soft magnetic granular films.” Magnetism and Magnetic Materials Conference, Nov. 2004.

Xi Nan and C.R. Sullivan, “High-Frequency Winding Loss—A Review of Previous Models and An Improved Model.”  Electrical Manufacturing and Coil Winding Conference Proceedings, Sept. 2004.

S. Prabhakaran, T. O'Donnell, C. O'Mathuna, and C.R. Sullivan. “Microfabricated Coupled-Inductors for Low-Voltage, High-Current Power Applications.”   Joint European Magnetic Symposia, Sept. 2004 

P. Dhagat, S. Prabhakaran, and C.R. Sullivan.  “Comparison of Magnetic Materials for V-Groove Inductors and MOSFETs in Optimised High-Frequency DC-DC Converters.”  9th Joint MMM/Intermag Conference January 7, 2004.

Yu Lin, C. R. Sullivan, C. G. Levey and U. J. Gibson, “Effect of Evaporative Deposition Angle on Anisotropy in Co-MgF2 Nanocomposite Soft Magnetic Materials."  IEEE International Magnetics Conference (Intermag), April 2003.

S. Prabhakaran, C. R Sullivan, and K. Venkatachalam,Measured Electrical Performance of V-Groove Inductors for Microprocessor Power Delivery.”  IEEE International Magnetics Conference (Intermag), April 2003.

C.R. Sullivan and Yuqin Sun, “Using Distributed Models of Inductive Effects in Multilayer Ceramic Capacitors to Design for Fast Response.”  Intel Technology Symposium, August 2002.

K. D. Coonley, G.J. Mehas, C.R. Sullivan, U.J. Gibson.  "Evaporatively Deposited Co-MgF2 Granular Materials for Thin-Film Inductors."  IEEE International Magnetics Conference (Intermag), April 2000.

Patents

A. Stratakos, C. R. Sullivan, Jieli Li, “Method for making magnetic components with N-phase coupling, and related inductor structures,” US Patent 7,898,379, March 1, 2011.

V.F. Petrenko, C.R. Sullivan, L. Deresh, “Ice modification removal and prevention,” US Patent  7,883,609, Feb. 8, 2011.

Jieli Li, C. R. Sullivan and A. Gentchev, “Method for making magnetic components with N-phase coupling, and related inductor structures,” US Patent 7,864,016, Jan. 4, 2011.

A. Stratakos, Jieli Li, B. Beronja, D. Lidsky, M. McJimsey, A. Schultz, C. R. Sullivan, C. Nickel, “Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode,” US Patent 7,859,238, Dec. 28, 2010.

Jieli Li, C. R. Sullivan and A. Gentchev, “Method for making magnetic components with N-phase coupling, and related inductor structures,” US Patent 7,746,209, June 29 2010.

C.R. Sullivan and J.D. Pollock, “Low AC resistant foil winding for magnetic coils on gapped cores,” US Patent 7,701,317, April 20, 2010.

A. Stratakos, Jieli Li, B. Beronja, D. Lidsky, M. McJimsey, A. Schultz, C. R. Sullivan, C. Nickel, “Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode,” US Patent 7,548,046, June 16, 2009

Jieli Li, C. R. Sullivan and A. Gentchev, “Method for making magnetic components with N-phase coupling, and related inductor structures,”  US Patent 7,525,408,  April 28, 2009.

C.R. Sullivan, A.M. Schultz, A. Stratakos and Jieli Li, “Method for making magnetic components with N-phase coupling, and related inductor structures,”  US Patent 7,498,920, March 3, 2009.

C.R. Sullivan and S. Prakhakaran, “Low impedance test fixture for impedance measurements,” US Patent 7,365,550,  April 29, 2008

Jieli Li,  C. R. Sullivan, A. Gentchev, “Method for making magnetic components with N-phase coupling, and related inductor structures,” US Patent  7,352,269, April 1, 2008.

A. Stratakos, Jieli Li, B. Beronja, D. Lidsky, M. McJimsey, A. Schultz, C.R. Sullivan,  C. Nickel.  “Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode.”  US Patent 7,317,305, Jan 2008.

V.F. Petrenko and C.R. Sullivan, “High-frequency de-icing of cableways,” US Patent 7,164,100, 2007.

M. V. Tyurin, L. R. Lynd, C. R. Sullivan, “Method and apparatus for bacterial transformation by electroporation with waveforms incorporating pulsed RF between 3 and 125 MHz,” European Patent EP1743030, 2007.

V.F. Petrenko and C.R. Sullivan, “Low-frequency de-icing of cableways,” U.S. Patent No. 7,038,125, 2006.

A.J. Burstein, D.B. Lidsky, A.J. Stratakos;, C.R. Sullivan, and W. Clark.  “Digital voltage regulator using current control.”  U.S. Patent No. 6,853,169, 2005.

V.F. Petrenko and C. R. Sullivan.  “Methods and structures for removing ice from surfaces,” U.S. Patent No. 6,723,971.  2004.

A. J. Burstein, D. B. Lidsky, A. Stratakos, and C. R. Sullivan.  “Digital voltage regulator using current control.”  U.S. Patent No. 6,590,369.  2003.

V.F. Petrenko and C.R. Sullivan.  “Methods and Systems for Removing Ice from Surfaces.”  U.S. Patent No. 6,653,598), 2003.

A.M. Schultz and C.R. Sullivan, "Voltage converter with coupled inductive windings, and associated methods." U.S. Patent No. 6,362,986, 2002.

A.J. Burstein, D.B. Lidsky, A.J. Stratakos, C.R. Sullivan, and W. Clark.  “Digital Voltage Regulator Using Current Control.”  U.S. Patent No. 6,268,716, 2001.

C.R. Sullivan, “Control system for providing power to a gas discharge lamp.”  U.S .Patent No. 5,864,212, Jan. 1999.

C.R. Sullivan, S.R. Jurell, and D.G. Luchaco, “Circuit for dimming compact fluorescent lamps,” US Patent No. 5,841,239, 1998.

C.R. Sullivan, S.R. Jurell, and D.G. Luchaco. "Circuit for Dimming Compact Fluorescent Lamps." U.S. Patent No. 5,173,643, 1993.

C.R. Sullivan, J.S. Spira, D.G. Luchaco, and S.R. Jurell, and E.R. Motto. "Circuit and Method for Improved Dimming of Gas Discharge Lamps." U.S. Patent No. 5,041,763, 1992.

C.R. Sullivan, S.R. Jurell, and D.G. Luchaco. "Circuit for Dimming Gas Discharge Lamps Without Introducing Striations." U.S. Patent No. 5,001,386, 1992.

 

Other publications: Books and Reports

A. J. Stratakos, C.R. Sullivan, S.R. Sanders, and R.W. Brodersen. "High-Efficiency Low-Voltage DC-DC Conversion for portable applications," in Low-Voltage/Low-Power Integrated Circuits and Systems: Low-Voltage Mixed-Signal Circuits, Edgar Sanchez-Sinencio and Andreas Andreou, Eds. IEEE Press, 1999.

A. J. Stratakos, C.R. Sullivan, S.R. Sanders, and R.W. Brodersen. "DC Power Supply Design in Portable Systems," Electronics Research Laboratory Memorandum No. UCB/ERL M95/4, College of Engineering, University of California at Berkeley. April 1995.

A. J. Stratakos, C.R. Sullivan, S.R. Sanders. "DC Power Supply Design in Portable Systems," in Low Power Digital CMOS Design, A.P. Chandrakasan and R.W. Brodersen, Kluwer Academic Publishers, Boston, 1995.