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2022
M. Khatua and K.K. Afridi, "Minimum Current Operation of Impedance Control Network Resonant Converters,"
Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2022. Y. Hou and K.K. Afridi, "Design of Variable-Load Class-E Inverter Using Laplace Based Steady-State Modeling,"
Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2022. D. Etta, S. Maji and K.K. Afridi, "High-Performance Multi-MHz Capacitive Wireless Power Transfer System with an Auxiliary
ZVS Circuit," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2022. M. Farooq, D. Shahzad and K.K. Afridi, "Comparison of Control Techniques for Dual-Mode Inversion Stage of a GaN-Based High-Power-Density
Single-Phase Transformer-Less Online UPS," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2022. S. Maji, D. Etta and K.K. Afridi, "A High-Power Large Air-Gap Multi-MHz Dynamic Capacitive Wireless Power Transfer System Utilizing an
Active Variable Reactance Rectifier Suitable for Electric Vehicle Charging," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2022. R. Makhdoom, S. Maji, S. Sinha, D. Etta and K.K. Afridi, "Multi-MHz In-Motion Capacitive Wireless Power Transfer System for Mobile Robots,"
Proceedings of the IEEE Wireless Power Week (WPW), Bordeaux, France, July 2022. C. Valero-De la Flor, S. Maji, D. Etta, K.K. Afridi, "Immittance Network-Based High-Frequency Paralleled Inverters for Capacitive Wireless Charging Systems,"
Proceedings of the IEEE Wireless Power Week (WPW), Bordeaux, France, July 2022. D. Shahzad, M. Farooq, S. Pervaiz and K.K. Afridi, "High-Power-Density High-Efficiency Soft-Switched Single-Phase Universal-Input to 28V Isolated AC-DC
Converter Module Designed for Paralleled Operation," IEEE Transactions on Power Electronics, vol. 37, no. 7, pp. 8262-8280, July 2022. M. Khatua, A. Kumar, S. Pervaiz, S. Chakraborty and K.K. Afridi, "A Single-Stage Isolated AC-DC Converter Based on the Impedance Control Network
Architecture," IEEE Transactions on Power Electronics, vol. 37, no. 7, pp. 8217-8231, July 2022. S. Maji, D. Etta and K.K. Afridi, "Design and Comparison of Power Combining Architectures for Capacitive Wireless Power Transfer Systems,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Tel Aviv, Israel, June 2022. D. Etta, S. Maji, M. Khatua and K.K. Afridi, "Impedance Control Network-Based Inverters for High-Frequency Capacitive Wireless Power Transfer Systems,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Tel Aviv, Israel, June 2022. M. Khatua and K.K. Afridi, "Design and Control of a Dual-Bridge Series Resonant Converter based Onboard EV Charger,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Tel Aviv, Israel, June 2022. M. Farooq, D. Shahzad and K.K. Afridi, "Feedforward-Enhanced Feedback Control of Output Voltage of a GaN-Based High-Power-Density Single-Phase Transformer-Less Online UPS,"
Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Houston, TX, March 2022. B. Regensburger, S. Sinha, A. Kumar, S. Maji and K.K. Afridi, "High-Performance Multi-MHz Capacitive Wireless Power Transfer System for EV Charging Utilizing
Interleaved-Foil Coupled Inductors," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 1, pp. 35-51, February 2022. S. Sinha, A. Kumar, B. Regensburger and K.K. Afridi, "Design of High-Efficiency Matching Networks for Capacitive Wireless Power Transfer Systems,"
IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 1, pp. 104-127, February 2022. K.K. Afridi, "The Future of Electric Vehicle Charging Infrastructure," Nature Electronics, vol. 5, no. 2, pp. 62-64, February 2022.
2021
D. Shahzad, S. Pervaiz, N. Zaffar and K.K. Afridi, "GaN-Based High-Power-Density AC-DC-AC Converter for Single-Phase Transformer-Less Online Uninterruptible
Power Supply," IEEE Transactions on Power Electronics, vol. 36, no. 12, pp. 13968-13984, December 2021. M. Daryaei, S.A. Khajehoddin, J. Mashreghi and K.K. Afridi, "A New Approach to Steady-State Modeling, Analysis and Design of Power Converters,"
IEEE Transactions on Power Electronics, vol. 36, no. 11, pp. 12746-12768, November 2021. F. Gurara, S. Sinha, R. Makhdoom and K.K. Afridi, "A Multi-Mode Four-Switch Buck-Boost Derived DC-DC Converter with an Intermediate Battery
Interface for Solar Thermoelectric Generation," Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Bogota, Colombia, November 2021. Y. Hou, M. Daryaei, A. Khajehoddin and K.K. Afridi, "Broadly-Applicable Accurate Analytical Steady-State Model for Class-E Inverters,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Bogota, Colombia, November 2021. M. Khatua and K.K. Afridi, "An Active Voltage Balancing Strategy for Stacked-Inverter ICN Converters,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Bogota, Colombia, November 2021. A. La Cour, K.K. Afridi and E. Suh, "Wireless Charging Power Side-Channel Attacks,"
Proceedings of the ACM Conference on Computer and Communications Security (CCS), Seoul, Korea, November 2021. M. Khatua and K.K. Afridi, "Control Strategies for Complete Soft-Switching of ICN Converters," Proceedings of the IEEE Energy Conversion Congress
and Exposition (ECCE), Vancouver, Canada, October 2021. S. Maji, S. Sinha and K.K. Afridi, "Roadway Embeddable Multi-MHz Capacitive Wireless Charging System with Matching Network Realized using Wiring
Parasitics," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, Canada, October 2021. S. Sinha, A. Kumar and K.K. Afridi, "A Variable Compensation Inverter Rectifier (VCIR) based Approach to Compensate for Coupling Variations in Wireless
Power Transfer Systems," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, Canada, October 2021. D. Shahzad and K.K. Afridi, "Paralleled Two-Stage Single-Phase AC-DC Converter Modules utilizing a Second-Stage Input-Current based Droop Control
Strategy," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, Canada, October 2021. M. Farooq, F. Gurara, M. Khatua, D. Shahzad, S. Pervaiz and K.K. Afridi, "Control Techniques for a Current-Mode-Controlled Merged-Energy-Buffer-based
Two-Stage Electrolytic-Free Offline LED Driver," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, Canada, October 2021. Y. Hou, S. Sinha, D. Ni, Q. Ji, A. Persaud, P. Seidl, T. Schenkel, A. Lal and K.K. Afridi, "A 27.12-MHz kV-scale Power Amplifier with a Tunable
Multistage Matching Network for a Compact Ion-beam Accelerator," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, Canada,
October 2021. Q. Ji, K.K. Afridi, T. Bauer, G. Giesbrecht, Y. Hou, A. Lal, D. Ni, A. Persaud, Z. Qin, P. Seidl, S. Sinha, T. Schenkel, "Beam Power Scale-up
in Micro-electromechanical Systems based Multi-beam Ion Accelerators," Review of Scientific Instrument, vol. 92, no. 10, October 2021. M. Khatua, A. Kumar, S. Pervaiz, S. Chakraborty and K.K. Afridi, "A Single-Stage Isolated AC-DC Converter Based on the Impedance
Control Network Architecture," IEEE Transactions on Power Electronics, vol. 36, no. 9, pp. 10366-10382, September 2021. R. Sanghvi, D. Ni, V. Gund, Q. Ji, T. Schenkel, K. Afridi, A. Lal, E. Petro, "Application of Microelectromechanical-system based RF Linear
Accelerators for Ultra-High Specific Impulse Ion Propulsion," Proceedings of the AIAA Propulsion & Energy Forum, August 2021. S. Sinha, A. Kumar and K.K. Afridi, "Optimized Design of High-Efficiency Immittance Matching Networks for Capacitive Wireless Power Transfer
Systems," Proceedings of the IEEE Workshop on Emerging Technologies: Wireless Power (WoW), San Diego, CA, June 2021. S. Maji, S. Sinha, M. Khatua and K.K. Afridi, "Theoretical Limits and Optimal Operating Frequencies of Capacitive Wireless Charging
Systems," Proceedings of the IEEE Workshop on Emerging Technologies: Wireless Power (WoW), San Diego, CA, June 2021. Y. Hou, S. Sinha and K.K. Afridi, "Tunable Multistage Matching Networks for Capacitive Wireless Power Transfer
Systems," Proceedings of the IEEE Wireless Power Transfer Conference (WPTC), San Diego, CA, June 2021. S. Sinha, S. Maji and K.K. Afridi, "Comparison of Large Air-Gap Inductive and Capacitive Wireless Power Transfer
Systems," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, June 2021. M. Khatua and K.K. Afridi, "An Impedance-Control-Network-Based Single-Stage Universal-Input Isolated AC-DC Converter Utilizing Reconfigurable
Inverters," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, June 2021. D. Shahzad, S. Pervaiz and K.K. Afridi, "A High-Power-Density High-Efficiency Single-Phase Universal-Input to 28V
Isolated AC-DC Converter Designed to Meet MIL-STD EMI Specifications," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, June 2021. M. Rasheed, H. Wang, K.K. Afridi, D. Maksimovic, G. Plett, S. Trimboli and R. Zane, "Composite Heterogeneous Energy Storage System
utilizing Capacitive Coupling for Hybrid Electric Vehicles," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, June 2021. S. Maji, S. Sinha and K.K. Afridi, "A Large Air-Gap Multi-MHz Capacitive Wireless Power Transfer System Using Compact
Charging Pads," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, June 2021.
2020
S. Maji, S. Sinha and K.K. Afridi "Theoretical Limits of Power Transfer in Capacitive Wireless Charging Systems," Proceedings of the IEEE Workshop on Control
and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, November 2020. F. Gurara, M. Farooq, M. Khatua, D. Shahzad and K.K. Afridi, "Control Strategy and Energy Density Enhancement Methodology for Merged Energy Buffer AC-DC
Converters," Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, November 2020. S. Maji, S. Sinha, B. Regensburger, F. Monticone and K.K. Afridi, "Reduced-Fringing-Field Multi-MHz Capacitive Wireless Power Transfer System Utilizing a
Metasurface-based Coupler," Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, November 2020. D. Shahzad, N. Zaffar and K.K. Afridi, "Power Factor Enhancement of a Soft-Switched Common-Neutral Single-DC-Bus Power Converter," Proceedings of the IEEE
Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, November 2020. Q. Ji, T. Bauer, A. Persaud, G. Giesbrecht, Z. Qin, C. Verdoza, P. Seidl, T. Schenkel, Y. Hou, D. Ni, S. Sinha, V. Gund, K. Afridi and A. Lal, "Compact Multi-Beam
Ion Accelerator with High Beam Power for Plasma Heating," Bulletin of the American Physical Society, Annual Meeting of the APS Division of Plasma Physics, vol. 65, no. 11, November 2020. M. Khatua, A. Kumar, V. Yousefzadeh, A. Sepahvand, M. Doshi, D. Maksimovic and K.K. Afridi, "High-Performance Megahertz-Frequency Resonant DC-DC Converter for
Automotive LED Driver Applications," IEEE Transactions on Power Electronics, vol. 35, no. 10, pp. 10396-10412, October 2020. Y. Hou, S. Sinha, D. Ni, Q. Ji, A. Persaud, P. Seidl, T. Schenkel, A. Lal and K.K. Afridi, "A 50-MHz Kilovolt-Scale Power Amplifier for Ion-Beam Accelerator
Utilizing an Optimized Toroidal Inductor," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2020. M. Khatua, A. Kumar, S. Pervaiz, S. Chakraborty and K.K. Afridi, "High-Performance Single-Stage Universal-Input Isolated AC-DC Converter Utilizing an Impedance
Control Network," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2020. F. Gurara, M. Farooq, M. Khatua, D. Shahzad and K.K. Afridi, "Energy Density Enhancement of a Merged-Energy-Buffer based Two-Stage AC-DC Converter,"
Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2020. B. Regensburger and K.K. Afridi, "Challenges and Solutions to Passive Rectification in Multi-MHz Frequency Capacitive Wireless Power Transfer Systems
for Electric Vehicle Charging," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2020. S. Sinha, Y. Hou, D. Ni, Q. Ji, A. Persaud, P. Seidl, T. Schenkel, A. Lal and K.K. Afridi, "A 27.12-MHz 10-kV Power Amplifier for Compact Particle Accelerators
Utilizing an Optimized Matching Network," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, October 2020. S. Sinha, A. Kumar, B. Regensburger and K.K. Afridi, "Active Variable Reactance Rectifier – A New Approach to Compensating for Coupling Variations in Wireless
Power Transfer Systems," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 3, pp. 2022-2040, September 2020. B. Regensburger, S. Sinha, A. Kumar and K.K. Afridi, "A 3.75-kW High-Power-Transfer-Density Capacitive Wireless Charging System for EVs utilizing
Toroidal-Interleaved-Foil Coupled Inductors," Proceedings of the IEEE Transportation Electrification Conference & Exposition (ITEC), Chicago, IL, June 2020. S. Sinha, D. Ni, A. Persaud, P. Seidl, T. Schenkel, Q. Ji, A. Lal and K.K. Afridi, "Multi-MHz Multi-kV Power Amplifiers for Compact Particle Accelerators,"
Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), New Orleans, LA, March 2020.
2019
S. Sinha, B. Regensburger, A. Kumar and K.K. Afridi, "A New Design Approach to Mitigating the Effect of Parasitics in Capacitive Wireless Power Transfer
Systems for Electric Vehicle Charging," IEEE Transactions on Transportation Electrification, vol. 5, no. 4, pp. 1040-1059, December 2019. A. Adib, K.K. Afridi, M Amirabidi, F. Fateh, M. Ferdowsi, B. Lehman, L.H. Lewis, B. Mirafzal, M. Saeedifard, M.B. Shadmand and P. Shamsi, "E-Mobility -
Advancements and Challenges," IEEE Access, vol. 7, pp. 165226-165240, November 2019. Q. Ji, A. Persaud, P. Seidl, M. Garske, G. Giesbercht, T. Schenkel, D. Ni, S. Sinha, K. Afridi and A. Lal, "Scaling of a Compact Multi-beam Ion Accelerator
to Higher Beam Power for Plasma Heating," Bulletin of the American Physical Society, Annual Meeting of the APS Division of Plasma Physics, vol. 64, no. 11, Fort Lauderdale, FL, October 2019. S. Sinha, B. Regensburger, A. Kumar and K.K. Afridi, "A Multi-MHz Large Air-gap Capacitive Wireless Power Transfer System Utilizing an
Active Variable Reactance Rectifier Suitable for Dynamic Electric Vehicle Charging," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE),
Baltimore, MD, September 2019. D. Shahzad, N. Zaffar and K.K. Afridi, "High-Power-Density GaN-Based Single-Phase Online Uninterruptible Power Supply,"
Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, September 2019. U. Anwar, D. Markovic and K.K. Afridi, "High-Frequency Resonant Inverter for Power Transfer Between Distributed Modules of a Biomedical
Implant," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, September 2019. M. Khatua, S. Mukherjee, A. Sepahvand, V. Yousefzadeh, M. Doshi, K.K. Afridi and D. Maksimovic, "Closed-Loop Control of LCL-T Resonant
DC-DC Converter Operating as Automotive LED Driver," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, September 2019. D. Shahzad, S. Pervaiz, N. Zaffar and K.K. Afridi, "Control of a GaN-Based High-Power-Density Single-Phase Online Uninterruptible Power Supply,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Toronto, Canada, June 2019. M. Khatua, S. Pervaiz and K.K. Afridi, "Control of a Merged-Energy-Buffer based Two-Stage Electrolytic-Free Offline LED Driver,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Toronto, Canada, June 2019. S. Sinha and K.K. Afridi, "Closed-loop Control of a Dynamic Capacitive Wireless Power Transfer System,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Toronto, Canada, June 2019. B. Regensburger, A. Kumar, S. Sinha, J. Xu and K.K. Afridi, "High-Efficiency High-Power-Transfer-Density Capacitive Wireless Power Transfer
System for Electric Vehicle Charging Utilizing Semi-Toroidal Interleaved-Foil Coupled Inductors," Proceedings of the IEEE Applied Power Electronics Conference and
Exposition (APEC), Anaheim, CA, March 2019. M. Khatua, D. Shahzad, S. Pervaiz and K.K. Afridi, "A High-Power-Density Electrolytic-Free Offline LED Driver Utilizing a Merged Energy
Buffer Architecture," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, CA, March 2019. A. Kumar, J. Lu and K.K. Afridi, "Power Density and Efficiency Enhancement in ICN DC-DC Converters Using Topology Morphing Control,"
IEEE Transactions on Power Electronics, vol. 34, no. 2, pp. 1881-1900, February 2019.
2018
R.A. Abramson, S.J. Gunter, D.M. Otten, 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," IEEE Transactions on Power Electronics, vol. 33, no. 12, pp. 10428-10448,
December 2018. 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," IEEE Transactions on Industry Applications, vol. 54, no. 5, pp. 4523-4536, September/October 2018. S. Pervaiz, A. Kumar and K.K. Afridi, "A Compact Electrolytic-Free Two-Stage Universal Input Offline LED Driver with Volume
Optimized SSC Energy Buffer," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 6, no. 3, pp. 1116-1130, September 2018. A. Kumar, S. Pervaiz and K.K Afridi, "High-Performance Single-Stage Isolated 48V-to-1.8V Point-of-Load Converter Utilizing
Impedance Control Network and Distributed Transformer," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR,
September 2018. D. Shahzad, S. Pervaiz and K.K. Afridi, "Low-Cost High-Efficiency Single-Stage Solid-State Transformer for Lighting Applications,"
Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR, September 2018. M. Khatua, A. Kumar, V. Yousefzadeh, A. Sepahvand, M. Doshi, D. Maksimovic and K.K. Afridi, "High-Performance Megahertz-Frequency
Resonant DC-DC Converter for Automotive LED Driver Applications," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Portland,
OR, September 2018. Y. Liu, A. Kumar, D. Maksimovic and K.K. Afridi, "A High-Power-Density High-Efficiency Three-Level Buck Converter for Cellphone Battery
Charging Applications," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR, September 2018. B. Regensburger, J. Estrada, A. Kumar, S. Sinha, Z. Popovic and K.K. Afridi, "High-Performance Capacitive Wireless Power Transfer
System for Electric Vehicle Charging with Enhanced Coupling Plate Design," Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE),
Portland, OR, September 2018. J. Lu, A. Kumar and K.K. Afridi, "A Step-Superposition Based Analysis Approach to Modeling
Resonant Converters," IEEE Transactions on Power Electronics, vol. 33, no. 8, pp. 7148-7165, August 2018. S. Pervaiz, A. Kumar and K.K. Afridi, "GaN-Based High-Power-Density Electrolytic-Free Universal Input LED Driver,"
IEEE Transactions on Industry Applications, vol. 54, no. 4, pp. 3890-3901, July/August 2018. A. Kumar, S. Pervaiz and K.K. Afridi, "Multimode Topology Morphing Control of Impedance Control Network Resonant DC-DC Converters,"
Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Padova, Italy, June 2018. B. Regensburger, A. Kumar, S. Sinha and K.K. Afridi, "High-Performance 13.56-MHz Large Air-Gap Capacitive Wireless Power Transfer
System for Electric Vehicle Charging," Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Padova, Italy,
June 2018. M. Khatua, A. Kumar, D. Maksimovic and K.K. Afridi, "A High-Frequency LCLC Network Based Resonant DC-DC Converter for Automotive
LED Driver Applications," Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Padova, Italy, June 2018. B. Regensburger, A. Kumar, S. Sinha and K.K. Afridi, "Impact of Foreign Objects on the Performance of Capacitive Wireless Charging
Systems for Electric Vehicles," Proceedings of the IEEE Transportation Electrification Conference & Exposition (ITEC), Long Beach, CA, June 2018. A. Kumar, S. Sinha and K.K. Afridi, "A High-Frequency Inverter Architecture for Providing Variable Compensation in Wireless Power Transfer
Systems," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX, March 2018. B. Regensburger, S. Sinha, A. Kumar, J. Vance, Z. Popovic and K.K. Afridi, "Kilowatt-Scale Large Air-Gap Multi-Modular Capacitive Wireless
Power Transfer System for Electric Vehicle Charging," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX,
March 2018. S. Sinha, A. Kumar and K.K. Afridi, "Improved Design Optimization of Efficient Matching Networks for Capacitive Wireless Power
Transfer System," Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX, March 2018. J.A. Santiago-Gonzalez, D.M. Otten, S. Lim, K.K. Afridi and D.J. Perreault, "Single Phase Universal Input PFC Converter Operating at HF,"
Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, TX, March 2018. A. Kumar, S. Sinha, A. Sepahvand and K.K. Afridi, "Improved Design Optimization for High-Efficiency Matching Networks,"
IEEE Transactions on Power Electronics, vol. 33, no. 1, pp. 37-50, January 2018.
2017
K.K. Afridi, "Wireless Charging of Electric Vehicles," The Bridge, National Academy of Engineering, vol. 47, no. 4, pp. 17-22, Winter 2017. 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. 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. 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. 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. 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. 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. 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-Gonzalez, 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. Perez 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 and M. Chen, “Coupled Split Path Power Conversion Architecture,” United States Patent,
No: 10644503, Massachusetts Institute of Technology, May 5, 2020. U. Anwar, K.K. Afridi and D. Maksimovic, “Hybrid Feedforward Control Architecture and Related Techniques,”
United States Patent, No: 10536068, University of Colorado Boulder, January 14, 2020. A. Sepahvand, D. Maksimovic and K.K. Afridi, “DC-to-DC Drivers with High Resolution Dimming,”
United States Patent, No: 10461633, University of Colorado Boulder, October 29, 2019. S. Sinha, A. Kumar and K.K. Afridi, “Matching Networks for Wireless Power Transfer and Related Techniques,”
United States Patent, No: 10333485, University of Colorado Boulder, June 25, 2019. A. Sepahvand, D. Maksimovic and K.K. Afridi, “Resonant DC-to-DC Drivers,”
United States Patent, No: 10327292, University of Colorado Boulder, June 18, 2019. K.K. Afridi, A. Kumar, Z. Popovic, D. Maksimovic, C.K. Chang, G.G. Da Silva and S. Pervaiz, "Wireless Power Transfer,"
United States Patent, No: 10298058, University of Colorado Boulder, May 21, 2019. A. Kumar, S. Sinha and K.K. Afridi, "Multistage Matching Network and Related Techniques," United States Patent, No: 10250216,
University of Colorado Boulder, April 2, 2019. D.J. Perreault, K.K. Afridi, M. Chen, S.B. Leeb and A.H.C. Chang, "Stacked Switched Capacitor Energy Buffer Circuit,"
United States Patent, No: 10218289, Massachusetts Institute of Technology, February 26, 2019. K.K. Afridi, Y. Ni, M. Chen, C. Serrano, B. Montgomery, D. Perreault and S. Pervaiz, "Stacked Switched Capacitor Energy Buffer Circuit,"
United States Patent, No: 10205400, University of Colorado Boulder, February 12, 2019. D.J. Perreault and K.K. Afridi, "Resonant Power Converters Using Impedance Control Networks and Related Techniques,"
United States Patent, No: 10090772, Massachusetts Institute of Technology, October 2, 2018. D.J. Perreault, K.K. Afridi, J.A. Santiago-Gonzalez and D.M. Otten, "High Frequency, High Density Power Factor Correction
Power Conversion for Universal Input Grid Interface," United States Patent, No: 10075064, Massachusetts Institute of Technology, September 11, 2018. D.J. Perreault, K.K. Afridi and S.J. Gunter, "Systems and Methods for a Variable Frequency Multiplier Power Converter,"
United States Patent, No: 9853550, December 26, 2017. M. Chen, D.J. Perreault and K.K. Afridi, "Switched-Capacitor Split Drive Transformer Power Conversion Circuit,"
United States Patent, No: 9825545, November 21, 2017. D.J. Perreault, K.K. Afridi and S.J. Gunter, "Systems and Methods for a Variable Frequency Multiplier Power Converter,"
United States Patent, No: 9819272, November 14, 2017. 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, 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
"Frontiers in Power Electronics: From Clean Energy to Wireless Powering of Vehicles,"
GE Global Research, Niskayuna, NY, December 13, 2018. "Frontiers in Power Electronics: From Clean Energy to Wireless Powering of Vehicles,"
MIT Power Electronics Seminar, Massachusetts Institute of Technology, Cambridge, MA, December 6, 2018. "Wireless Powering of Electric Vehicles," All Pakistan Electrical Symposium (APES),
University of Engineering and Technology, Lahore, Pakistan, October 6, 2018. "Frontiers of Power Electronics - Powering Vehicles from the Roadway," Virgin Hyperloop One,
Los Angeles, CA, June 12, 2018. "Opportunities and Challenges at the Frontiers of Power Electronics," Texas Instruments,
Santa Clara, CA, June 8, 2018. "In-motion Capacitive Wireless Power Transfer for Electric Vehicles," Conference on
Electric Roads and Vehicles (CERV), Park City, UT, February 27, 2018. "Frontiers in Power Electronics: From Clean Energy to Wireless Powering of Vehicles,"
University of Illinois at Urbana-Champaign, Urbana, IL, February 19, 2018. "Frontiers of Power Electronics," International Conference on Electrical Engineering,
Lahore, Pakistan, February 16, 2018. "Frontiers in Power Electronics: From Clean Energy to Wireless Powering of Vehicles,"
California Institute of Technology, Pasadena, CA, January 12, 2018. "Power Electronics on the Cutting Edge: From Clean Energy to Wireless Powering of Vehicles,"
University of California San Diego, La Jolla, CA, January 11, 2018. "Frontiers in Power Electronics: From Clean Energy to Wireless Powering of Vehicles,"
Cornell University, Ithaca, NY, December 8, 2017. "High-Performance Resonant Converters and Wireless Power Transfer Systems," United Technologies Research Center (UTRC), East Hartford, CT, September 27, 2017. "Wireless Charging of Electric Vehicles," National Academy of Engineering (NAE) Frontiers
of Engineering (FOE) Symposium, East Hartford, CT, September 26, 2017. "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.
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