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Recent Publications

2017

  • J. Lu, A. Kumar and K.K. Afridi, “A Step-Superposition Based Analysis Approach to Modeling Resonant Converters,” IEEE Transactions on Power Electronics (accepted).

  • A. Kumar, S. Sinha, A. Sepahvand and K.K. Afridi, “Improved Design Optimization for High-Efficiency Matching Networks,” IEEE Transactions on Power Electronics (accepted).

  • S. Sinha, A. Kumar, B. Regensburger, and K.K. Afridi, “A Very-High-Power-Transfer-Density GaN-Based Capacitive Wireless Power Transfer System,” Proceedings of the IEEE Workshop on Wide Bandgap Power Devices and Applications (WiPDA), Albuquerque, NM, October/November 2017 (accepted).

  • A. Kumar and K.K. Afridi, “Single-Stage Isolated 48V-to-1.8V Point-of-Load Converter Utilizing an Impedance Control Network for Wide Input Range Operation,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, OH, October 2017 (accepted).

  • S. Sinha, B. Regensburger, K. Doubleday, A. Kumar, S. Pervaiz and K.K. Afridi, “High-Power-Transfer-Density Capacitive Wireless Power Transfer System for Electric Vehicle Charging,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, OH, October 2017 (accepted).

  • J. Lu, A. Kumar and K.K. Afridi, “Closed-Loop Control of Impedance Control Network Resonant DC-DC Converter,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, OH, October 2017 (accepted).

  • S. Pervaiz, A. Kumar and K.K. Afridi, “GaN-Based High-Power-Density Electrolytic-Free Universal Input LED Driver,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, OH, October 2017 (accepted).

  • J. Estrada, S. Sinha, B. Regensburger, K.K. Afridi and Z. Popovic, “Capacitive Wireless Powering for Electric Vehicles with Near-Field Phased Arrays,” Proceedings of the European Microwave Conference, Nuremburg, Germany, October 2017 (accepted).

  • Y. Ni, S. Pervaiz, M. Chen and K.K. Afridi, “Energy Density Enhancement of Stacked Switched Capacitor Energy Buffers through Capacitance Ratio Optimization,” IEEE Transactions on Power Electronics, vol. 32, no. 8, pp. 6363-6380, August 2017.

  • J. Lu and K.K. Afridi, "High Efficiency Impedance Control Network Resonant DC-DC Converter with Optimized Startup Control," IEEE Transactions on Industry Applications vol. 53, no. 4, pp. 3880-3889, July/August 2017.

  • S. Sinha, A. Kumar and K.K. Afridi, “Active Variable Reactance Rectifier – A New Approach to Compensating for Coupling Variations in Wireless Power Transfer Systems,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Stanford, CA, July 2017.

  • A. Kumar, S. Pervaiz and K.K. Afridi, “Single-Stage Isolated 48V-to-1.8V Point-of-Load Converter Utilizing an Impedance Control Network and Integrated Magnetic Structures,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Stanford, CA, July 2017.

  • K. Doubleday, A. Kumar, B. Regensburger, S. Pervaiz, S. Sinha, Z. Popovic and K.K. Afridi, “Multi-Objective Optimization of Capacitive Wireless Power Transfer Systems for Electric Vehicle Charging,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Stanford, CA, July 2017.

  • Y. Liu, A. Kumar, S. Pervaiz, D. Maksimovic and K.K. Afridi, “A High-Power-Density Low-Profile DC-DC Converter for Cellphone Battery Charging Applications,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Stanford, CA, July 2017.

  • U. Anwar, D. Maksimovic and K.K. Afridi, “A Simple Control Architecture for Four-Switch Buck-Boost Converter based Power Factor Correction Rectifier,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Stanford, CA, July 2017.

  • A. Sepahvand, A. Kumar, M. Doshi, V. Yousefzadeh, J. Patterson, K.K. Afridi and D. Maksimovic, “Current Control and PWM Dimming in an Automotive LED Driver based on a Cuk Converter,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Stanford, CA, July 2017.

  • B. Regensburger, A. Kumar, S. Sinha, K. Doubleday, S. Pervaiz, Z. Popovic and K.K. Afridi, “High-Efficiency Large Air-Gap Capacitive Wireless Power Transfer System for Electric Vehicle Charging,” Proceedings of the IEEE Transportation Electrification Conference & Exposition (ITEC), Chicago, IL, June 2017.

  • U. Anwar, R. Erickson, D. Maksimovic and K.K. Afridi, “A Control Architecture for Low Current Distortion in Bridgeless Boost Power Factor Correction,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Tampa, FL, March, 2017.

  • A. Sepahvand, M. Doshi, J. Patterson, V. Yousefzadeh, K.K. Afridi and D. Maksimovic, “High-Frequency ZVS Cuk Converter for Automotive LED Driver Applications Using Planar Integrated Magnetics,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Tampa, FL, March, 2017.

  • R. Abramson, S.J. Gunter, K.K. Afridi and D.J. Perreault, “Design and Evaluation of a Reconfigurable Stacked Active Bridge DC/DC Converter for Efficient Wide Load Range Operation,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Tampa, FL, March, 2017.

  • M. Chen, K.K. Afridi, C. Sombuddha and D.J. Perreault, “Multitrack Power Conversion Architecture,” IEEE Transactions on Power Electronics, vol. 32, no. 1, pp. 325-340, January, 2017.

2016

  • K. Doubleday, S. Sinha, B. Regensburger, S. Pervaiz, A. Kumar and K.K. Afridi, “Design Tradeoffs in a Multi-Modular Capacitive Wireless Power Transfer System,” Proceedings of the IEEE Workshop on Emerging Technologies: Wireless (WoW), Knoxville, TN, October, 2016.

  • A. Kumar, J. Lu, S. Pervaiz, A. Sepahvand and K.K. Afridi, “High Power Density Impedance Control Network DC-DC Converter Utilizing an Integrated Magnetic Structure,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, September, 2016.

  • J. Lu, A. Kumar and K.K. Afridi, “Step-Down Impedance Control Network Resonant DC-DC Converter Utilizing an Enhanced Phase-Shift Control for Wide-Input-Range Operation,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, September, 2016.

  • A. Kumar, S. Sinha, A. Sepahvand and K.K. Afridi, “Improved Design Optimization Approach for High Efficiency Matching Networks,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, September, 2016.

  • U. Anwar, H. Kim, H. Chen, R. Erickson, D. Maksimovic and K.K. Afridi, “A High Power Density Drivetrain-Integrated Electric Vehicle Charger,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, September, 2016.

  • A. Sepahvand, M. Doshi, J. Patterson, V. Yousefzadeh, K.K. Afridi and D. Maksimovic, “Automotive LED Driver Based on High Frequency Zero Voltage Switching Integrated Magnetics Cuk Converter,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, September, 2016.

  • J. Lu, D.J. Perreault, D.M. Otten and K.K. Afridi, “Impedance Control Network Resonant DC-DC Converter for Wide-Range High-Efficiency Operation,” IEEE Transactions on Power Electronics, vol. 31, no. 7, pp. 5040-5056, July, 2016.

  • A. Kumar, J. Lu and K.K. Afridi, “Power Density and Efficiency Enhancement in Impedance Control Network Resonant DC-DC Converters Using Topology Morphing Control,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Trondheim, Norway, June, 2016.

  • S. Sinha, A. Kumar, S. Pervaiz, B. Regensburger and K.K. Afridi, “Design of Efficient Matching Networks for Capacitive Wireless Power Transfer Systems,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Trondheim, Norway, June, 2016.

  • U. Anwar, D. Maksimovic and K.K. Afridi, “Generalized Hybrid Feedforward Control of Pulse Width Modulated Switching Converters,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Trondheim, Norway, June, 2016.

  • W. Inam, T. Rak-Amnouykit, K.K. Afridi and D.J. Perreault, “Analysis and Design Methodology for System Cost Reduction in Distributed Power Systems,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Trondheim, Norway, June, 2016.

  • I. Ramos, K.K. Afridi, J. Estrada and Z. Popovic, “Near-field Capacitive Wireless Power Transfer Array with External Field Cancellation,” Proceedings of the IEEE Wireless Power Transfer Conference (WPTC), Aveiro, Portugal, May, 2016.

  • Y. Liu, J. Lu, A. Kumar, D. Maksimovic and K.K. Afridi, “New Design Methodology for Megahertz-Frequency Resonant dc-dc Converters Using Impedance Control Network Architecture,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, March, 2016.

  • S. Pervaiz, A. Kumar and K.K. Afridi, “A Compact Electrolytic-Free Two-Stage Universal Input Offline Led Driver,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, March, 2016.

  • C. McHugh, J. Meyer, S. Pervaiz, J. Lu, F. Zhang, S. Sinha, H. Chen, A. Kumar, U. Anwar, S. Jensen, B. Choi, D. Seltzer, R.W. Erickson, D. Maksimovic and K.K. Afridi, “A High Power Density Single-Phase Inverter Using Stacked Switched Capacitor Energy Buffer,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, March, 2016.

  • M. Chen, S.J. Gunter, K.K. Afridi and D.J. Perreault, “Applicability and Limitations of an M2Spice-Assisted Time-Domain Current Calculation and Visualization Approach for Planar Magnetics,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, March, 2016.

  • W. Inam, K.K. Afridi and D.J. Perreault, “Variable Frequency Multiplier Technique for High Efficiency Conversion Over a Wide Operating Range,” IEEE Journal of Emerging and Selected Topics in Power Electronics, March, 2016.

  • M. Chen, M. Araghchini, K.K. Afridi, J.H. Lang, C.R. Sullivan and D.J. Perreault, “A Systematic Approach to Modeling Impedances and Current Distribution in Planar Magnetics,” IEEE Transactions on Power Electronics, vol. 31, no. 1, pp. 560-580, January, 2016.

2015

  • J. Lu and K.K. Afridi, “High Efficiency Impedance Control Network Resonant DC-DC Converter with Optimized Startup Control,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, Canada, September, 2015.

  • A. Kumar and K.K. Afridi, “Megahertz-Frequency Isolated Resonant dc-dc Converter using Impedance Control Network for High-Efficiency Wide-Range Operation,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, Canada, September, 2015.

  • S.J. Gunter, K.K. Afridi, D. Otten, R. Abramson and D.J. Perreault, “Impedance Control Network Resonant Step-Down DC-DC Converter Architecture,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, Canada, September, 2015.

  • M. Chen, K.K. Afridi, C. Sombuddha and D.J. Perreault, “On the Power of Multi-track: A Hybrid Switched-Capacitor-Magnetics Power Conversion Architecture with Multiple Intermediate Bus Voltages,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, Canada, September, 2015.

  • J.A. Santiago-Gonzalez, K.M. Elbaggari, K.K. Afridi and D.J. Perreault, “Design of Class E Resonant Rectifiers and Diode Evaluation for VHF Power Conversion,” IEEE Transactions on Power Electronics, vol. 30, no. 9, pp. 4960-4972, September, 2015.

  • J. Lu, A. Kumar and K.K. Afridi, “A Step-Superposition Based Analysis Approach to Modeling Resonant Converters,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Vancouver, Canada, July, 2015.

  • A. Kumar, J. Lu and K.K. Afridi, “Enhanced-Accuracy Augmented State-Space Approach to Steady-State Modeling of Resonant Converters,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Vancouver, Canada, July, 2015.

  • A. Sepahvand, A. Kumar, K.K. Afridi and D. Maksimovic, “High Power Transfer Density and High Efficiency 100 MHz Capacitive Wireless Power Transfer System,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Vancouver, Canada, July, 2015.

  • W. Inam, D. Strawser, R. Ram, K.K. Afridi and D.J. Perreault, “Architecture and System Analysis of Microgrids with Peer-to-Peer Electricity Sharing to Create a Marketplace which Enables Energy Access,” Proceedings of the IEEE International Conference on Power Electronics (ICPE-ECCE Asia), Seoul, South Korea, June, 2015.

  • C.K. Chang, G.G. Da Silva, A. Kumar, S. Pervaiz and K.K. Afridi, “30 W Capacitive Wireless Power Transfer System with 5.8 pF Coupling Capacitance,” Proceedings of the IEEE Wireless Power Transfer Conference (WPTC), Boulder, CO, May, 2015.

  • A. Kumar, S. Pervaiz, C.K. Chang, S. Korhummel, Z. Popovic and K.K. Afridi, “Investigation of Power Transfer Density Enhancement in Large Air-Gap Capacitive Wireless Power Transfer Systems,” Proceedings of the IEEE Wireless Power Transfer Conference (WPTC), Boulder, CO, May, 2015.

  • J. Lu, D.J. Perreault and K.K. Afridi, “Impedance Control Network Resonant dc-dc Converter for Wide-Range High-Efficiency Operation,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Charlotte, NC, March, 2015.

  • S. Pervaiz, Y. Ni and K.K. Afridi, “Improved Capacitance Ratio Optimization Methodology for Stacked Switched Capacitor Energy Buffers,” Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Charlotte, NC, March, 2015.

  • M. Chen, K.K. Afridi and D.J. Perreault, "A Multilevel Energy Buffer and Voltage Modulator for Grid-Interfaced Micro-Inverters," IEEE Transactions on Power Electronics vol. 30, no. 3, pp. 1203-1219, March, 2015.

2014

  • M. Chen, Y. Ni, C.M. Serrano, B.J. Montgomery, D.J. Perreault and K.K. Afridi, “An Electrolytic-Free Offline LED Driver with a Ceramic-Capacitor-Based Compact SSC Energy Buffer,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Pittsburgh, PA, September, 2014.

  • W. Inam, K.K. Afridi and D.J. Perreault, "Variable Frequency Multiplier Technique for High Efficiency Conversion Over a Wide Operating Range,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Pittsburgh, PA, September, 2014.

  • J.A. Santiago-Gonzalez, K.M. Elbaggari, K.K. Afridi and D.J. Perreault, “Design of Near Resistive- Input Class E Rectifiers and Evaluation of Diodes for VHF Rectification,” Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Pittsburgh, PA, September, 2014.

  • W. Inam, K.K. Afridi and D.J. Perreault, "High Efficiency Resonant DC/DC Converter Utilizing a Resistance Compression Network," IEEE Transactions on Power Electronics, vol. 29, no. 8, pp. 4126-4135, August, 2014.

  • Y. Ni, S. Pervaiz, M. Chen and K.K. Afridi, “Energy Density Enhancement of Unipolar SSC Energy Buffers through Capacitance Ratio Optimization,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Santander, Spain, June, 2014.

  • M. Chen, M. Araghchini, K.K. Afridi, J.H. Lang and D.J. Perreault, “A Systematic Approach to Modeling Impedances and Current Distribution in Planar Magnetics,” Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Santander, Spain, June, 2014.

  • K.K. Afridi, M. Chen and D.J. Perreault, "Enhanced Bipolar Stacked Switched Capacitor Energy Buffers," IEEE Transactions on Industry Applications, vol. 50, no. 2, pp. 1141-1149, March/April, 2014.

2013

  • M. Chen, K.K. Afridi and D.J. Perreault, "Stacked Switched Capacitor Energy Buffer Architecture," IEEE Transactions on Power Electronics, vol. 28, no. 11, pp. 5183-5195, November, 2013.

  • M. Chen, K.K. Afridi and D.J. Perreault, "A Multilevel Energy Buffer and Voltage Modulator for Grid- Interfaced Micro-Inverter," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Denver, CO, September, 2013.

  • J.A. Santiago-González, K.K. Afridi and D.J. Perreault, "Design of Resistive-Input Class E Resonant Rectifiers for Variable-Power Operation," Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Salt Lake City, UT, June, 2013.

  • S. Gunter, K.K. Afridi and D.J. Perreault, "Optimal Design of Grid-Interfaced PEV Chargers with Integrated Distributed Resources," IEEE Transactions on Smart Grid, vol. 4, no. 2, pp. 956-967, June, 2013.

  • P. Mitros, K.K. Afridi, G.J. Sussman, C.J. Terman, J.K. White, L.J. Fischer and A. Agarwal, "Teaching Electronic Circuits Online: Lessons from MITx's 6.002x on edX," Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China, May, 2013.

  • W. Inam, K.K. Afridi and D.J. Perreault, "High Efficiency Resonant DC/DC Converter Utilizing a Resistance Compression Network," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, March, 2013.

  • S.J. Gunter, D.J. Perreault, S. Suresh and K.K. Afridi, "Methodology for the Optimal Design of PEV Charging Systems with Multiple Chargers and Distributed Resources," Proceedings of the IEEE Innovative Smart Grid Technologies Conference (ISGT), Washington, DC, February, 2013.

2012

  • A. Siddiqi, J. Wescoat, S. Humair, K. Afridi, "An Empirical Analysis of the Hydropower Portfolio in Pakistan," Energy Policy, vol. 50, pp. 228-241, November, 2012.

  • K.K. Afridi, M. Chen and D.J. Perreault, "Enhanced Bipolar Stacked Switched Capacitor Energy Buffers," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), pp. 4209-4216, Raleigh, NC, September, 2012.

  • M. Chen, K.K. Afridi and D.J. Perreault, "Stacked Switched Capacitor Energy Buffer Architecture," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Orlando, FL, February, 2012.

  • S. Gunter, K.K. Afridi and D.J. Perreault, "Optimal Design of Grid-Interfaced EV Chargers with Integrated Generation," Proceedings of the IEEE Innovative Smart Grid Technologies Conference (ISGT), Washington, DC, January, 2012.


Select Older Publications

  • J.G. Kassakian, R.L. Schmalensee, G. DesGroseilliers, T.D. Heidel, K.K. Afridi, A.M. Farid, J.M. Grochow, W.W. Hogan, H.D. Jacoby, J.L. Kirtley, H.G. Michaels, I. Pérez Arriaga, D.J. Perreault, N.L. Rose and G.L. Wilson, The Future of the Electric Grid, Massachusetts Institute of Technology, Cambridge, MA, December, 2011.

  • D.J. Perreault, K.K. Afridi and I.A. Khan, “Automotive Applications of Power Electronics,” Power Electronics Handbook, 3rd Edition, Muhammad H. Rashid (Editor), pp. 643-668, Elsevier, 2011.

  • K.K. Afridi, “MAESTrO - A Software Tool for the Design and Evaluation of Advanced Automotive Electrical Power Systems,” Proceedings of the IEEE Workshop on Power Electronics in Transportation, pp. 39-46, Dearborn, MI, USA, October, 1996.

  • K.K. Afridi and J.G. Kassakian, “Turn-off Failures in Individual and Paralleled MCTs,” IEEE Transactions on Power Electronics, pp. 299-304, March, 1996.


Issued Patents

  • D.J. Perreault, K.K. Afridi, M. Chen, S.B. Leeb and A.H.C. Chang, "Enhanced Stacked Switched Capacitor Energy Buffer Circuit," United States Patent, No: 9762145, Massachusetts Institute of Technology, September 12, 2017.

  • A.H.C. Chang, D.J. Perreault, K.K. Afridi, M. Chen and S.B. Leeb, "Systems Approach to Photovoltaic Energy Extraction," United States Patent, No. 9407164, August 2, 2016.

  • D.J. Perreault, K.K. Afridi, M. Chen, S.B. Leeb and A.H.C. Chang, “Stacked Switched Capacitor Energy Buffer Circuit Architecture,” United States Patent, No. 9374020, June 21, 2016.

  • A.A. Baloch, U. Ahmed, M. Asif and K.K. Afridi, “Rules-based Occupant Classification System for Airbag Deployment,” United States Patent, No. 6459974, October 1, 2002.


Select Talks

  • “Capacitive Wireless Power Transfer for EVs,” IEEE Transportation Electrification Conference & Exposition (ITEC), Chicago, IL, June 22, 2017.

  • “Design Considerations for High-Power Large-Gap Capacitive Wireless Power Transfer Systems,” High-Power Wireless Power Transfer Workshop, IEEE International Microwave Symposium (IMS), Honolulu, HI, June 5, 2017.

  • “ICN Power Conversion Architecture for High-Power-Density High-Efficiency Wide-Operating- Range Isolated Converters,” IBM Power Technology Symposium, Yorktown Heights, NY, April 26, 2017.

  • “Opportunities and Challenges in Radio Frequency Power Electronics,” International Conference on Electrical Engineering, Lahore, Pakistan, March 4, 2017.

  • “Capacitive Wireless Power Transfer Systems for Electric Vehicle Charging,” SELECT Brown Bag, Online, February 15, 2017.

  • “High Frequency Power Electronics for Wireless Power Transfer & Other Applications,” Tesla Motors, Palo Alto, CA, January 27, 2017.

  • “High Efficiency Compact Resonant Converters,” National Transportation Research Center, Oak Ridge National Laboratory, Oak Ridge, TN, October 3, 2016.

  • “Capacitive Wireless Power Transfer for Electric Vehicles,” Conference on Electric Roads and Vehicles, Logan, UT, May 16, 2016.

  • “High Efficiency Compact Resonant Converters,” Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, May 13, 2016.

  • “Magnetics Design for High-Efficiency Compact Resonant Converter Architectures,” PSMA/IEEE Workshop: Power Magnetics @ High Frequency – Solving the Black Magic, Long Beach, CA, March, 2016.

  • “Ultra-Efficient, Compact and Long-Life Power Electronics,” Power and Energy Systems Seminar, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, April, 2015.

  • "Circuits and Systems Education in the Era of the MOOCs," CASEO Workshop, ISCAS, Beijing, China, May, 2013.

  • "Converter and System Architectures for Grid-Interfaced Power Electronics," Department of Electrical and Computer Engineering Colloquium, Tufts University, Medford, MA, November, 2012.

  • "Methodology for the Optimal Design of Grid-Connected PEV Charging Systems with Integrated Distributed Resources," Siemens Corporate Research, Princeton, NJ, July, 2012.

  • “Electrification of Road Transport and its Impact on the Grid,” MIT Center for Energy and Environmental Policy Research (CEEPR) Workshop, Cambridge, MA, April, 2010.

  • “International Grid Activities,” MIT Future of the Electric Grid Study Advisory Board Meeting, Cambridge, MA, January, 2010.

  • “An Engineering Curriculum for the 21st Century,” International Conference on Emerging Trends in Engineering Education, Islamabad, December, 2007.