Publications

Journal Articles

  • Z. Tong, L. Gu, Z. Ye, K. Surakitbovorn, and J. Rivas-Davila, "On the Techniques to Utilize SiC Power Devices in High- and Very High-Frequency Power Converters," IEEE Transactions on Power Electronics, in press. [Paper (6MB)]
  • Z. Tong, G. Zulauf, J. Xu, J. Plummer, and J. Rivas-Davila, "Output Capacitance Loss Characterization of Silicon Carbide Schottky Diodes," IEEE J. Emerging and Selected Topics in Power Electronics, in press. [Paper (7MB)]
  • L. Gu, Z. Tong, W. Liang, and J. Rivas-Davila, "A Multi-Resonant Gate Driver for High-Frequency Resonant Converters," IEEE Trans. Industrial Electronics, in press. [Paper (4MB)]
  • G. Zulauf, J. Roig, J. Plummer, and J. Rivas-Davila, "Coss Measurements for Superjunction MOSFETs: Limitations and Opportunities," IEEE Trans. Electron Devices, in press. [Paper (3MB)]
  • G. Zulauf, Z. Tong, J. Plummer, and J. Rivas-Davila, "Active Power Device Selection in High- and Very-High-Frequency Power Converters," IEEE Trans. Power Electronics, in press. [Paper (6MB)]
  • J. Choi, J. Xu, R. Makhoul, and J. Rivas-Davila, "Implementing an Impedance Compression Network to Compensate for Misalignments in a Wireless Power Transfer System," IEEE Trans. Power Electronics, pp. 4173-4184, May 2019.
  • S. Park and J. Rivas-Davila, "Duty Cycle and Frequency Modulations in Class-E DC-DC Converters for Wide Input and Output Voltage Ranges," IEEE Trans. Power Electronics, pp. 10524-10538, Dec. 2018. [Paper (8MB)]
  • G. Zulauf, S. Park, W. Liang, K. Surakitbovorn, and J. Rivas-Davila, "Coss Losses in 600 V GaN Power Semiconductors in Soft-Switched, High- and Very-High-Frequency Power Converters," IEEE Trans. Power Electronics, pp. 10748-10763, Dec. 2018. [Paper (13MB)]
  • L. Gu, W. Liang, M. Praglin, S. Chakraborty, and J. Rivas-Davila, "A Wide-Input-Range High-Efficiency Step-down Power Factor Correction Converter Using Variable Frequency Multiplier Technique," IEEE Trans. Power Electronics, pp. 9399-9411, Nov. 2018. [Paper (3MB)]
  • W. Liang, C. Charles, L. Raymond, A. Stuchbery, K. Surakitbovorn, L. Gu, R. Boswell, and J. Rivas-Davila, "An Integrated RF Power Delivery and Plasma Micro-Thruster System for Nano-Satellites," Frontiers in Physics, Oct. 2018. [Paper (online)]
  • J. Choi, D. Tsukiyama, Y. Tsuruda, and J. Rivas-Davila, "High-Frequency, High-Power Resonant Inverter with eGaN FET for Wireless Power Transfer," IEEE Trans. Power Electronics, pp. 1890-1896, Mar. 2018.
  • S. Park and J. Rivas-Davila, "Design of a Class-DE Rectifier with Shunt Inductance and Nonlinear Capacitance for High Voltage Conversion," IEEE Trans. Power Electronics, pp. 2282-2294, Mar. 2018. [Paper (15MB)]
  • C. Charles, W. Liang, L. Raymond, J. Rivas-Davila, and R. Boswell, "Vacuum Testing of a Miniaturised Switch Mode Amplifier Powering an Electrothermal Plasma Micro-Thruster," Frontiers in Physics, Aug. 2017. [Paper (online)]
  • W. Liang, L. Raymond, M. Praglin, D. Biggs, F. Righetti, M. Cappelli, B. Holman, and J. Rivas-Davila, "Low Mass RF Power Inverter for CubeSat Applications Using 3D Printed Inductors," IEEE J. Emerging and Selected Topics in Power Electronics, pp. 880-890, Jun. 2017.
  • W. Liang, L. Raymond, and J. Rivas-Davila, "3-D-Printed Air-Core Inductors for High-Frequency Power Converters," IEEE Trans. Power Electronics, pp. 52-64, Jan. 2016. [Paper (8MB)]
  • W. Liang, J. Glaser, and J. Rivas-Davila, "13.56 MHz High Density DC-DC Converter with PCB Inductors," IEEE Trans. Power Electronics, pp. 4291-4301, Aug. 2015.

Conference Proceedings

  • J. Zhuang, G. Zulauf, and J. Rivas-Davila, "Substrate Bias Effect on E-Mode GaN-on-Si HEMT Coss Losses," in Wide Bandgap Power Devices and App. (WiPDA), pp. 130-133, Oct. 2018.
  • J. Choi, Y. Ooue, N. Furukawa, and J. Rivas-Davila, "Designing a 40.68 MHz Power-Combining Resonant Inverter with eGaN FETs for Plasma Generation," in Energy Conversion Congress and Expo. (ECCE), Oct. 2018.
  • L. Gu, K. Surakitbovorn, G. Zulauf, S. Chakraborty, and J. Rivas-Davila, "High-Frequency Bidirectional Resonant Converter for High Conversion Ratio and Variable Load Operation," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • J. Xu, L. Gu, and J. Rivas-Davila, "Effect of Class 2 Ceramic Capacitance Variations on Switched Capacitor and Resonant Switched Capacitor Converters," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • Y. Li, L. Gu, A. Hariya, Y. Ishizuka, J. Rivas-Davila, and S. Sanders, "A Wide Input Range Isolated Stacked Resonant Switched-Capacitor DC-DC Converter for High Conversion Ratios," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • Z. Tong, G. Zulauf, and J. Rivas-Davila, "A Study on Off-State Losses in Silicon-Carbide Schottky Diodes," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • J. Choi, J. Xu, R. Makhoul, and J. Rivas-Davila, "Design of a 13.56 MHz DC-to-DC Resonant Converter using an Impedance Compression Network to Mitigate Misalignments in a Wireless Power Transfer System," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • K. Surakitbovorn and J. Rivas-Davila, "Design of a GaN-Based, Inductor-less, Wireless Power Transfer System at 40.68 MHz," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • S. Park, G. Zulauf, and J. Rivas-Davila, "Estimating the Reliability of Series-Connected Schottky Diodes for High-Frequency Rectification," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • G. Zulauf, Z. Tong, and J. Rivas-Davila, "Considerations for Active Power Device Selection in High Frequency and Very High Frequency Power Converters," in Control and Modeling for Power Electronics (COMPEL), Jun. 2018.
  • G. Zulauf and J. Rivas-Davila, "Coss losses in silicon superjunction MOSFETs across constructions and generations," in Int'l Symp. Power Semiconductor Devices and ICs (ISPSD), May 2018.
  • L. Gu, K. Surakitbovorn, and J. Rivas-Davila, "High-Frequency Resonant Converter with Synchronous Rectification for High Conversion Ratio and Variable Load Operation," in Int'l Power Electronics Conf. (IPEC - ECCE Asia), May 2018.
  • K. Surakitbovorn and J. Rivas-Davila, "Design of a GaN-Based Wireless Power Transfer System at 13.56 MHz to Replace Conventional Wired Connection in a Vehicle," in Int'l Power Electronics Conf. (IPEC - ECCE Asia), May 2018.
  • S. Park and J. Rivas-Davila, "FPGA-based Dynamic Duty Cycle and Frequency Controller for a Class-E2 DC-DC Converter," in Int'l Power Electronics Conf. (IPEC - ECCE Asia), May 2018. [Slides (5MB)]
  • S. Park*, L. Gu*, and J. Rivas-Davila, "60 V-to-35 kV Input-Parallel Output-Series DC-DC Converter Using Multi-Level Class-DE Rectifiers," in App. Power Electronics Conf. and Expo. (APEC), Mar. 2018. [Poster (2MB)] *Equal contribution.
  • G. Zulauf, W. Liang, K. Surakitbovorn, and J. Rivas-Davila, "Output Capacitance Losses in 600 V GaN Power Semiconductors with Large Voltage Swings at High- and Very-High-Frequencies," in Wide Bandgap Power Devices and App. (WiPDA), Oct. 2017.
  • L. Gu, W. Liang, and J. Rivas-Davila, "Design of Very-High-Frequency Synchronous Resonant DC-DC Converter for Variable Load Operation," in Energy Conversion Congress and Expo. (ECCE), Oct. 2017.
  • S. Talukder, S. Park, and J. Rivas-Davila, "A Portable Electrostatic Precipitator to Reduce Respiratory Death in Rural Environments," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017. [Paper (2MB)]
  • G. Zulauf, W. Liang, and J. Rivas-Davila, "A Unified Model for High-Power, Air-Core Toroidal PCB Inductors," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017. [Paper (3MB)]
  • S. Park and J. Rivas-Davila, "Isolated Resonant DC-DC Converters with a Loosely Coupled Transformer," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017. [Paper (4MB)] [Poster (3MB)]
  • K. Surakitbovorn and J. Rivas-Davila, "Evaluation of GaN Transistor Losses at MHz Frequencies in Soft Switching Converters," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017.
  • J. Choi and J. Rivas-Davila, "Implementing an Impedance Compression Network to Correct Misalignment in a Wireless Power Transfer System," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017.
  • W. Liang, X. Cui, L. Raymond, L. Gu, C. Charles, R. Boswell, and J. Rivas-Davila, "A Compact RF Power Inverter with Reduced EMI for a CubeSat Electrothermal Micro-Thruster," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017.
  • L. Gu, W. Liang, and J. Rivas-Davila, "A Multi-resonant Gate Driver for Very-High-Frequency (VHF) Resonant Converters," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017.
  • A. Goldin, R. Rajagopal, C. Rivetta, and J. Rivas-Davila, "The "Smart Dim Fuse": A New Approach to Load Control as a Distributed Energy Resource," in Control and Modeling for Power Electronics (COMPEL), Jul. 2017.
  • S. Park and J. Rivas-Davila, "Power Loss of GaN Transistor Reverse Diodes in a High Frequency High Voltage Resonant Rectifier," in App. Power Electronics Conf. and Expo. (APEC), pp. 1942-1945, Mar. 2017. [Paper (4MB)] [Slides (8MB)]
  • W. Liang, L. Raymond, J. Rivas-Davila, C. Charles, and R. Boswell, "Structurally Supportive RF Power Inverter for a CubeSat Electrothermal Plasma Micro-Thruster with PCB Inductors," in App. Power Electronics Conf. and Expo. (APEC), pp. 2141-2145, Mar. 2017.
  • L. Gu, W. Liang, M. Praglin, S. Chakraborty, and J. Rivas-Davila, "Universal Line Input Power Factor Preregulator Using VFX Technique," in App. Power Electronics Conf. and Expo. (APEC), pp. 1810-1815, Mar. 2017.
  • J. Choi, D. Tsukiyama, and J. Rivas-Davila, "Comparison of SiC and eGaN Devices in a 6.78 MHz 2.2 kW Resonant Inverter for Wireless Power Transfer," in Energy Conversion Congress and Expo. (ECCE), Sep. 2016.
  • M. Praglin, L. Raymond and J. Rivas-Davila, "Inductance Cancellation in RF Resonant Power Converters," in Energy Conversion Congress and Expo. (ECCE), Sep. 2016.
  • J. Choi, D. Tsukiyama, and J. Rivas-Davila, "Evaluation of a 900 V SiC MOSFET in a 13.56 MHz 2 kW Resonant Inverter for Wireless Power Transfer," in Control and Modeling for Power Electronics (COMPEL), Jun. 2016.
  • W. Liang, L. Raymond, M. Praglin, D. Biggs, F. Righetti, M. Cappelli, B. Holman, and J. Rivas-Davila, "Low Mass RF Power Inverter for Cubesat Plasma Thruster Using 3D Printed Inductors," in Control and Modeling for Power Electronics (COMPEL), Jun. 2016.
  • L. Raymond, W. Liang, K. Surakitbovorn, and J. Rivas-Davila, "Resonant Bi-polar DC Pulse Power Supply for Electroporation Applications," in Control and Modeling for Power Electronics (COMPEL), Jun. 2016. [Poster (2MB)]
  • S. Park and J. Rivas-Davila, "A Design Methodology for Class-D Resonant Rectifier with Parallel LC Tank," in Control and Modeling for Power Electronics (COMPEL), Jun. 2016. [Paper (3MB)] [Poster (2MB)]
  • L. Raymond, W. Liang, K. Surakitbovorn, and J. Rivas-Davila, "27.12 MHz Isolated High Voltage Gain Multi-Level Resonant DC-DC Converter," in Energy Conversion Congress and Expo. (ECCE), pp. 5074-5080, Sep. 2015.
  • W. Liang, L. Raymond, L. Gu, and J. Rivas-Davila, "27.12 MHz GaN Resonant Power Converter with PCB Embedded Resonant Air Core Inductors and Capacitors," in Energy Conversion Congress and Expo. (ECCE), pp. 4251-4256, Sep. 2015.
  • L. Raymond, W. Liang, L. Gu, and J. Rivas-Davila, "13.56 MHz High Voltage Multi-Level Resonant DC-DC Converter," in Control and Modeling for Power Electronics (COMPEL), Jul. 2015.
  • L. Gu, W. Liang, L. Raymond, and J. Rivas-Davila, "27.12 MHz GaN Bi-Directional Resonant Power Converter," in Control and Modeling for Power Electronics (COMPEL), Jul. 2015. [Poster (2MB)]
  • J. Choi, D. Tsukiyama, Y. Tsuruda, and J. Rivas-Davila, "13.56 MHz 1.3 kW Resonant Converter with GaN FET for Wireless Power Transfer," in Wireless Power Transfer Conf., May 2015.
  • W. Liang, L. Raymond, and J. Rivas-Davila, "3D Printed Air Core Inductors for High Frequency Power Converters," in Energy Conversion Congress and Expo. (ECCE), pp. 971-979, Sep. 2014. [Poster (6MB)]
  • L. Raymond, W. Liang, and J. Rivas-Davila, "Performance Evaluation of Diodes in 27.12 MHz Class-D Resonant Rectifiers Under High Voltage and High Slew Rate Conditions," in Control and Modeling for Power Electronics (COMPEL), Jun. 2014. [Poster (0.7MB)]
  • J. Choi, W. Liang, L. Raymond, and J. Rivas-Davila, "A High-Frequency Resonant Converter Based on the Class Φ2 Inverter for Wireless Power Transfer," in Vehicular Tech. Conf., May 2014.
  • L. Raymond, W. Liang, J. Choi, and J. Rivas-Davila, "27.12 MHz Large Voltage Gain Resonant Converter with Low Voltage Stress," in Energy Conversion Congress and Expo. (ECCE), pp. 1814-1821, Sep. 2013.
  • W. Liang, J. Glaser, and J. Rivas-Davila, "13.56 MHz High Density DC-DC Converter with PCB Inductors," in App. Power Electronics Conf. and Expo. (APEC), pp. 633-640, Mar. 2013.

Patents

  • L. Raymond, W. Liang, and J. Rivas-Davila, "Isolated Multi-Level Resonant Topologies for Wide-Range Power Conversion and Impedance Matching," U.S. Patent 10 218 276, Feb. 2019. [Link]