Juan Rivas-Davila

Associate Professor of Electrical Engineering and Senior Fellow at the Precourt Institute for Energy

Web page: http://web.stanford.edu/people/jmrivas

Bio

Juan Rivas is an Associate Professor at Stanford’s Electrical Engineering department. Before, he worked for GE Global Research in the high-frequency power electronics group. He has extensive experience in the design of dc-dc power converters working at MHz frequencies. He has published peer-reviewed work on power converters reaching up to 100 MHz using Si and WBG devices. He obtained his doctoral degree from MIT in 2006. His research interests include power electronics, resonant converters, resonant gate drive techniques, high-frequency magnetics, and finding new applications for power converters

Academic Appointments

Associate Professor, Electrical Engineering
Senior Fellow, Precourt Institute for Energy
Member, Cardiovascular Institute
Member, Wu Tsai Neurosciences Institute

Honors & Awards

Best Paper: HF Bidirectional Resonant Converter for High Conversion Ratio & Variable Load Operation, Control and Modeling for Power Electronics Workshop (2018)
Faculty Early Career Development (CAREER) Program”, National Science Foundation (2013)
Best Paper Award: "13.56 MHz high voltage multi-level resonant DC-DC converter", Control and Modeling for Power Electronics Workshop (2015)
Transactions Paper Award: "Resistance Compression Networks for Radio-Frequency Power conversion", IEEE Power Electronics Society (2007)
2nd Prize Award: High Frequency Resonant SEPIC Converter With Wide Input and Output Voltage Ranges'', IEEE Power Electronics Society (2012)

Program Affiliations

Stanford SystemX Alliance

Professional Education

B.A., ITESM, Mexico City Campus, Electrical and Communications Engineering (1998)
S.M., Massachusetts Institute of Technology, Output Power Increase at Idle Speed in Alternators (2003)
Sc.D., Massachusetts Institute of Technology, Radio Frequency dc-dc Power Conversion (2006)

Patents

Juan M. Rivas Davila, Wei Liang, Luke C. Raymond. "United States Patent US11,031,179B2 Passive Components For Electronic Circuits Using Conformal Deposition on a Scaffold", The Board of Trustees of the Leland Stanford Junior University, Jun 8, 2021
Luke C. Raymond, Wei Liang, Juan M. Rivas Davila. "United States Patent US10218276B2 Isolated Multi-Level Resonant Topologies for Wide-Range Power Conversion and Impedance Matching", Leland Stanford Junior University, Feb 26, 2019
John R. Goscha, Victor D. Roberts, Juan Manuel Rivas-Davila, Luke Christopher Raymond. "United States Patent 9,305,765B2 High frequency induction lighting", Lucidity Lights, Inc., Apr 5, 2016
Juan Manuel Rivas Davila, Randall Henry Buchwald. "United States Patent 8,829,905 B2 Magnetic resonance imaging compatible switched mode power supply", General Electric Company, Sep 9, 2014
Juan Manuel Rivas Davila, Ljubisa Dragoljub Stevanovic, Juan Antonio Sabate. "United States Patent 8,760,164 Magnetic resonant imaging gradient driver architecture", General Electric Company, Jun 24, 2014
Satish Prabhakaran, John Stanley Glaser, Ljubisa Dragoljub Stevanovic, Juan Manuel Rivas Davila. "United States Patent US 8567046 B2 Methods for making magnetic components", General Electric Company, Oct 29, 2013
Rixin Lai, Luis Jose Garces, Juan Antonio Sabate, Juan Manuel Rivas Davila, Song Chi, Wesley Michael Skeffington,. "United States Patent US 8502539 B2 Gradient amplifier system", General Electric Company, Jul 31, 2013
Mehmet Arik, Tunc Icoz, Juan Manuel Rivas Davila, Charles Erklin Seeley, Yogen Vishwas Utturkar, Stanton Earl Weaver, Jr.. "United States Patent US 8496049 B2 Heat sinks with distributed and integrated jet cooling", General Electric Company, Jul 30, 2013
John Stanley Glaser, Juan Manuel Rivas Davila. "United States Patent US 7924580 B2 Switching inverters and converters for power conversion", General Electric Company, Apr 12, 2011
David J. Perreault, Juan M. Rivas, Anthony D. Sagneri, Olivia Leitermann, Yehui Han, Robert C. N. Pilawa-Podgurski,. "United States Patent 7,889,519 B2 Methods and apparatus for a resonant converter", Massachusetts Institute Of Technology, Feb 15, 2011
David J. Perreault, Juan M. Rivas, Yehui Han, Olivia Leitermann. "United States Patent 7535133 B2 Methods and apparatus for resistance compression networks", Massachusetts Institute Of Technology, May 19, 2009

Contact

Academic
jmrivas@stanford.edu
University - Faculty Department: Electrical Engineering Position: Assoc Professor
- 350 Jane Stanford Way Rm 237
- David Packard Building
- Stanford, California 94305-4020
- (650) 497-6312 (office)

Additional Info

Mail Code: 9510
ORCID:
https://orcid.org/0000-0003-2494-8579

Current Research and Scholarly Interests

Modern applications are driving demand for power systems with capabilities beyond what is presently achievable. High performance systems, like medical imaging systems and other applications impose challenging specifications on power density and bandwidth that are difficult to achieve with current circuit topologies. Power density can be improved with better semiconductor components and passive elements, and by reducing the energy storage requirements of the system. By dramatically increasing the switching frequency, it is possible to reduce the energy storage requirements and improve bandwidth. I'm interested in the development of system architectures and circuit topologies for dc-ac and dc-dc power conversion that can reach switching frequencies of 10’s to 100’s of MHz. Switching at these frequencies will lead to efficient converters with inductors and transformers having no magnetic material to limit their high frequency performance, and with small-valued capacitors.
At these switching frequencies, all inductors can be air-cored, eliminating core losses, saturation, and extending their operating temperature range. I have been involved in the development of dc-dc converter that archives a significant reduction in peak switch voltage stress, requires small passive components with low energy storage, and provides the capability for extremely rapid startup and shutdown.

Another goal of my work is to implement a value-added strategy in inexpensive printed circuit boards (PCB) by fabricating all passive devices of a power converter (inductors and capacitors) with traces, transforming the PCB into a 3-D resonant structure. This approach will eliminate tuning and component variation while simultaneously maintaining extraordinary levels of performance at reduced cost. Moreover, there a lot of exciting applications for these high frequency circuits.

2022-23 Courses

Advanced Topics in Power Electronics
EE 254 (Spr)
An Intro to Making: What is EE
ENGR 40M (Win)
Power Electronics
EE 153, EE 253 (Aut)
Independent Studies (6)
- Master's Thesis and Thesis Research
  EE 300 (Win, Spr)
- Special Studies and Reports in Electrical Engineering
  EE 191 (Aut, Win, Spr, Sum)
- Special Studies and Reports in Electrical Engineering
  EE 391 (Aut, Win, Spr, Sum)
- Special Studies and Reports in Electrical Engineering (WIM)
  EE 191W (Aut, Win, Spr, Sum)
- Special Studies or Projects in Electrical Engineering
  EE 190 (Aut, Win, Spr, Sum)
- Special Studies or Projects in Electrical Engineering
  EE 390 (Aut, Win, Spr, Sum)
Prior Year Courses
2021-22 Courses
- Advanced Topics in Power Electronics
  EE 254 (Win)
- Magnetics Design in Power Electronics
  EE 356B (Spr)
- Power Electronics
  EE 153, EE 253 (Aut)
2020-21 Courses
- Advanced Topics in Power Electronics
  EE 254 (Win)
- Introductory Research Seminar in Electrical Engineering
  EE 301 (Aut, Sum)
- Power Electronics
  EE 153, EE 253 (Aut)
- Resonant Converters
  EE 356A (Spr)
2019-20 Courses
- Advanced Topics in Power Electronics
  EE 254 (Spr)
- Power Electronics
  EE 153, EE 253 (Win)
- Resonant Converters
  EE 356A (Aut)

Stanford Advisees

Doctoral Dissertation Reader (AC)
Qian Dong, Aaron Goldin, Gift Nyikayaramba, Ahmed Sawaby, Christopher Vassos, Gustavo Vianna Cezar, Xinyi Wen, Yinuo Xu
Postdoctoral Faculty Sponsor
Kawin Surakitbovorn
Doctoral Dissertation Advisor (AC)
Weston Braun, Calvin Lin, Eric Stolt, Zikang Tong, Zhechi Ye, Jia Zhuang
Master's Program Advisor
Marcos Bentolila, Ryan Johnston, Ethan Li, Mateo Massey, Jeff McElfresh, Alex Moraru, Daniel Polansky, Davis Young, Boyu Zhang
Doctoral (Program)
Weston Braun, Geneva Ecola, Calvin Lin, Rachel Luo, Gift Nyikayaramba, Carla Pinzon, Eric Stolt, Lyne Tchapmi P., Zhechi Ye, Jia Zhuang

All Publications

Wideband PPT Class Phi(2) Inverter Using Phase-Switched Impedance Modulation and Reactance Compensation IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS Tong, Z., Gu, L., Rivas-Davila, J. 2022; 69 (6): 5724-5734

View details for DOI 10.1109/TIE.2021.3090710

View details for Web of Science ID 000752059600036
Real-time Selective Harmonic Minimization Using a Hybrid Analog/Digital Computing Method IEEE TRANSACTIONS ON POWER ELECTRONICS Poon, J., Sinha, M., Dhople, S. V., Rivas-Davila, J. 2022; 37 (5): 5078-5088

View details for DOI 10.1109/TPEL.2021.3126678

View details for Web of Science ID 000745538400024
A Simple Method to Combine the Output Power From Multiple Class-E Power Amplifiers IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS Surakitbovorn, K., Rivas-Davila, J. M. 2022; 10 (2): 2245-2253

View details for DOI 10.1109/JESTPE.2020.3011658

View details for Web of Science ID 000777346600080
Class DE Switch-Mode Power Amplifier Using GaN Power HEMTs IEEE MICROWAVE MAGAZINE Tong, Z., Ye, Z., Rivas-Davila, J. 2022; 23 (3): 72-79

View details for DOI 10.1109/MMM.2021.3132111

View details for Web of Science ID 000750318400010
1 kW MHz Wideband Class E Power Amplifier IEEE OPEN JOURNAL OF POWER ELECTRONICS Xu, J., Tong, Z., Rivas-Davila, J. 2022; 3: 84-92

View details for DOI 10.1109/OJPEL.2022.3146835

View details for Web of Science ID 000761216300001
Plasma-fixated nitrogen as fertilizer for turf grass RSC ADVANCES Sze, C., Wang, B., Xu, J., Rivas-Davila, J., Cappelli, M. A. 2021; 11 (60): 37886-37895

View details for DOI 10.1039/d1ra07074f

View details for Web of Science ID 000721892900001
Plasma-fixated nitrogen as fertilizer for turf grass. RSC advances Sze, C., Wang, B., Xu, J., Rivas-Davila, J., Cappelli, M. A. 2021; 11 (60): 37886-37895

Abstract

We investigated the use of plasma-fixated nitrogen, which produces nitrates (NO3 -) in water, as a possible nitrogen fertilizer for recreational turf such as rye grass and bent grass. Experiments were carried out to study the effects of nitrate concentration on growth, the further effects of adding phosphorous (P) and potassium (K) to the plasma nitrated solution to make an N-P-K complete fertilizer, and to compare the efficacy of plasma-fixated nitrogen to sodium nitrate (NaNO3) and potassium nitrate (KNO3). The results indicate that the growth and biomass of the plants were strongly dependent on the concentration of the plasma-fixated nitrogen. Adding P-K to the plasma-fixated nitrogen improved grass growth. Grass that was supplied plasma-fixated nitrogen had improved growth compared to those supplied with equal amounts of NaNO3 and KNO3. This work highlights the potential use of plasma-fixated nitrogen as a fertilizer source for commonly used turf grass.

View details for DOI 10.1039/d1ra07074f

View details for PubMedID 35498073

View details for PubMedCentralID PMC9043919
Origins of Soft-Switching C-oss Losses in SiC Power MOSFETs and Diodes for Resonant Converter Applications IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS Tong, Z., Roig-Guitart, J., Neyer, T., Plummer, J. D., Rivas-Davila, J. M. 2021; 9 (4): 4082-4095

View details for DOI 10.1109/JESTPE.2020.3034345

View details for Web of Science ID 000679548500026
Decentralized Carrier Phase Shifting for Optimal Harmonic Minimization in Asymmetric Parallel-Connected Inverters IEEE TRANSACTIONS ON POWER ELECTRONICS Poon, J., Johnson, B., Dhople, S. V., Rivas-Davila, J. 2021; 36 (5): 5915–25

View details for DOI 10.1109/TPEL.2020.3030009

View details for Web of Science ID 000613453900088
Small- and Large-Signal Dynamic Output Capacitance and Energy Loss in GaN-on-Si Power HEMTs IEEE TRANSACTIONS ON ELECTRON DEVICES Zhuang, J., Zulauf, G., Roig-Guitart, J., Plummer, J., Rivas, J. 2021; 68 (4): 1819–26

View details for DOI 10.1109/TED.2021.3063062

View details for Web of Science ID 000633331000065
6.78-MHz Wireless Power Transfer With Self-Resonant Coils at 95% DC-DC Efficiency IEEE TRANSACTIONS ON POWER ELECTRONICS Gu, L., Zulauf, G., Stein, A., Kyaw, P., Chen, T., Davila, J. 2021; 36 (3): 2456–60

View details for DOI 10.1109/TPEL.2020.3014042

View details for Web of Science ID 000583807100002
Time and voltage domain load models for appliance-level grid edge simulation and control ELECTRIC POWER SYSTEMS RESEARCH Goldin, A., Buechler, E., Rajagopal, R., Rivas-Davila, J. 2021; 190

View details for DOI 10.1016/j.epsr.2020.106750

View details for Web of Science ID 000594663300015
Fixed-Frequency Control of Piezoelectric Resonator DC-DC Converters for Spurious Mode Avoidance IEEE OPEN JOURNAL OF POWER ELECTRONICS Stolt, E., Braun, W. D., Gu, L., Segovia-Fernandez, J., Chakraborty, S., Lu, R., Rivas-Davila, J. 2021; 2: 582-590

View details for DOI 10.1109/OJPEL.2021.3128509

View details for Web of Science ID 000725789000001
Piezoelectric Resonator Second Harmonic Cancellation in Class Phi(2) Inverters Stolt, E. A., Braun, W. D., Daniel, C. Y., Rivas-Davila, J. M., IEEE IEEE. 2021

View details for DOI 10.1109/COMPEL52922.2021.9646078

View details for Web of Science ID 000803067800107
1 kW MHz Wideband Class E Power Amplifier Xu, J., Tong, Z., Rivas-Davila, J., IEEE IEEE. 2021

View details for DOI 10.1109/COMPEL52922.2021.9645990

View details for Web of Science ID 000803067800045
Class E Power Amplifier with Piezoelectric Resonator Output Branch Daniel, C., Stolt, E., Rivas-Davila, J., IEEE IEEE. 2021

View details for DOI 10.1109/COMPEL52922.2021.9645966

View details for Web of Science ID 000803067800028
A High Frequency Resonant Gate Driver for SiC MOSFETs Ye, Z., Tong, Z., Gu, L., Rivas-Davila, J., IEEE IEEE. 2021

View details for DOI 10.1109/COMPEL52922.2021.9645982

View details for Web of Science ID 000803067800038
Reverse Recovery Testing of Small-Signal Schottky Diodes Braun, W. D., Stolt, E. A., Gu, L., Rivas-Davila, J. M., IEEE IEEE. 2021: 5611-5615

View details for DOI 10.1109/ECCE47101.2021.9595177

View details for Web of Science ID 000805434405125
Real-time Selective Harmonic Minimization using Hybrid Analog/Digital Computing Poon, J., Sinha, M., Dhople, S., Rivas-Davila, J., IEEE IEEE. 2021: 1041-1046

View details for DOI 10.1109/APEC42165.2021.9487342

View details for Web of Science ID 000689551700160
1.7 kW 6.78 MHz Wireless Power Transfer with Air-Core Coils at 95.7% DC-DC Efficiency Gu, L., Rivas-Davila, J., IEEE IEEE. 2021

View details for DOI 10.1109/WPTC51349.2021.9458037

View details for Web of Science ID 000693412400023
Push-Pull Class Phi(2) RF Power Amplifier IEEE TRANSACTIONS ON POWER ELECTRONICS Gu, L., Zulauf, G., Zhang, Z., Chakraborty, S., Rivas-Davila, J. 2020; 35 (10): 10515–31

View details for DOI 10.1109/TPEL.2020.2981312

View details for Web of Science ID 000545474200049
Effect of Class 2 Ceramic Capacitor Variations on Switched-Capacitor and Resonant Switched-Capacitor Converters IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS Xu, J., Gu, L., Rivas-Davila, J. 2020; 8 (3): 2268–75

View details for DOI 10.1109/JESTPE.2019.2951807

View details for Web of Science ID 000554968300024
A Method to Eliminate Discrete Inductors in a Class-E Inverter Used in Wireless Power Transfer Applications IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS Surakitbovorn, K., Rivas-Davila, J. M. 2020; 8 (3): 2167–78

View details for DOI 10.1109/JESTPE.2019.2949234

View details for Web of Science ID 000554968300016
High-Frequency Bidirectional Resonant Converter for High Conversion Ratio and Variable Load Operation Gu, L., Surakitbovorn, K., Zulauf, G., Chakraborty, S., Rivas-Davila, J. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2020: 1983–93

View details for DOI 10.1109/JESTPE.2019.2935732

View details for Web of Science ID 000554968300003
Design and Fabrication of Three-Dimensional Printed Air-Core Transformers for High-Frequency Power Applications IEEE TRANSACTIONS ON POWER ELECTRONICS Tong, Z., Braun, W. D., Rivas-Davila, J. 2020; 35 (8): 8472–89

View details for DOI 10.1109/TPEL.2020.2963976

View details for Web of Science ID 000530303600065
Lightweight High Voltage Generator for Untethered Electroadhesive Perching of Micro Air Vehicles IEEE ROBOTICS AND AUTOMATION LETTERS Park, S., Drew, D. S., Follmer, S., Rivas-Davila, J. 2020; 5 (3): 4485–92

View details for DOI 10.1109/LRA.2020.3001520

View details for Web of Science ID 000542879400005
Cascode GaN/SiC: A Wide-Bandgap Heterogenous Power Device for High-Frequency Applications IEEE TRANSACTIONS ON POWER ELECTRONICS Xu, J., Gu, L., Ye, Z., Kargarrazi, S., Rivas-Davila, J. 2020; 35 (6): 6340–49

View details for DOI 10.1109/TPEL.2019.2954322

View details for Web of Science ID 000554997600071
On the Optimization of a Class-E Power Amplifier With GaN HEMTs at Megahertz Operation IEEE TRANSACTIONS ON POWER ELECTRONICS Surakitbovorn, K., Rivas-Davila, J. M. 2020; 35 (4): 4009–23

View details for DOI 10.1109/TPEL.2019.2939549

View details for Web of Science ID 000507948300056
Single-Turn Air-Core Coils for High-Frequency Inductive Wireless Power Transfer IEEE TRANSACTIONS ON POWER ELECTRONICS Zulauf, G., Rivas-Davila, J. M. 2020; 35 (3): 2917–32

View details for DOI 10.1109/TPEL.2019.2932178

View details for Web of Science ID 000507286000059
A Hybrid Cockcroft-Walton/Dickson Multiplier for High Voltage Generation IEEE TRANSACTIONS ON POWER ELECTRONICS Park, S., Yang, J., Rivas-Davila, J. 2020; 35 (3): 2714–23

View details for DOI 10.1109/TPEL.2019.2929167

View details for Web of Science ID 000507286000043
A Multiresonant Gate Driver for High-Frequency Resonant Converters IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS Gu, L., Tong, Z., Liang, W., Rivas-Davila, J. 2020; 67 (2): 1405–14

View details for DOI 10.1109/TIE.2019.2899557

View details for Web of Science ID 000490873600053
Inductorless Soft Switching DC-DC Converter with an Optimized Piezoelectric Resonator Braun, W. D., Tong, Z., Rivas-Davila, J., IEEE IEEE. 2020: 2272–78

View details for Web of Science ID 000617737902064
Low-Ripple High-Voltage DC Generation Using a Serially Segmented Multiphase Voltage Multiplier Park, S., Rivas-Davila, J., IEEE IEEE. 2020: 962-968

View details for Web of Science ID 000645593601051
A physical investigation of large-signal dynamic output capacitance and energy loss in GaN-on-Si power HEMTs at high-frequency applications Zhuang, J., Zulauf, G., Roig, J., Plummer, J. D., Rivas-Davila, J., IEEE IEEE. 2020: 189-194

View details for Web of Science ID 000645593600029
The Impact of Multi-MHz Switching Frequencies on Dynamic On-Resistance in GaN-on-Si HEMTs IEEE OPEN JOURNAL OF POWER ELECTRONICS Zulauf, G., Guacci, M., Rivas-Davila, J. M., Kolar, J. W. 2020; 1: 210-215

View details for DOI 10.1109/OJPEL.2020.3005879

View details for Web of Science ID 000669560800020
Modular ON/OFF and Phase-Shifting for High-Speed Radio Frequency Power Modulation IEEE OPEN JOURNAL OF POWER ELECTRONICS Surakitbovorn, K., Rivas-Davila, J. M. 2020; 1: 393-406

View details for DOI 10.1109/OJPEL.2020.3024030

View details for Web of Science ID 000669560800034
1 kW, Multi-MHz Wireless Charging for Electric Transportation Phan, T., Zulauf, G., Fan, J. A., Rivas-Davila, J. M., IEEE IEEE. 2020: 795-801

View details for Web of Science ID 000659968200117
Design and Optimization of 6.78 MHz Wireless Power Transfer with Self-Resonant Coils Gu, L., Zulauf, G., Stein, A., Kyaw, P., Chen, T., Rivas-Davila, J. M., IEEE IEEE. 2020: 379-383

View details for Web of Science ID 000659968200058
Demonstration of GaN Impact Ionization Avalanche Transit-Time (IMPATT) Diode Ji, D., Ercan, B., Zhuang, J., Gu, L., Rivas-Davila, J., Chowdhury, S., IEEE IEEE. 2020

View details for Web of Science ID 000615719100031
On the Techniques to Utilize SiC Power Devices in High- and Very High-Frequency Power Converters IEEE TRANSACTIONS ON POWER ELECTRONICS Tong, Z., Gu, L., Ye, Z., Surakitbovorn, K., Rivas-Davila, J. 2019; 34 (12): 12181–92

View details for DOI 10.1109/TPEL.2019.2904591

View details for Web of Science ID 000485747300053
Output Capacitance Loss Characterization of Silicon Carbide Schottky Diodes IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS Tong, Z., Zulauf, G., Xu, J., Plummer, A. D., Rivas-Davila, J. 2019; 7 (2): 865–78

View details for DOI 10.1109/JESTPE.2019.2904290

View details for Web of Science ID 000466921500021
Implementing an Impedance Compression Network to Compensate for Misalignments in a Wireless Power Transfer System IEEE TRANSACTIONS ON POWER ELECTRONICS Choi, J., Xu, J., Makhoul, R., Davila, J. 2019; 34 (5): 4173–84

View details for DOI 10.1109/TPEL.2018.2862414

View details for Web of Science ID 000464911900019
Empirical Circuit Model for Output Capacitance Losses in Silicon Carbide Power Devices Tong, Z., Park, S., Rivas-Davila, J., IEEE IEEE. 2019: 998–1003

View details for Web of Science ID 000475931101022
Miniature High-Voltage DC-DC Power Converters for Space and Micro-Robotic Applications Park, S., Goldin, A., Rivas-Davila, J., IEEE IEEE. 2019: 2007–14

View details for Web of Science ID 000520543702061
Gate Drive for Very Fast Resonant Conversion using SiC Switch Tong, Z., Gu, L., Surakitbovorn, K., Rivas-Davila, J. M., IEEE IEEE. 2019: 6647–54

View details for Web of Science ID 000520543707006
An Investigation into the Causes of C-OSS Losses in GaN-on-Si HEMTs Zhuang, J., Zulauf, G., Roig, J., Plummer, J. D., Rivas-Davila, J., IEEE IEEE. 2019

View details for Web of Science ID 000493056900055
3-D Printed Air-Core Toroidal Transformer for High-Frequency Power Conversion Tong, Z., Braun, W. D., Rivas-Davila, J. M., IEEE IEEE. 2019

View details for Web of Science ID 000493056900068
A Compact 45 V-to-54 kV Modular DC-DC Converter Park, S., Gu, L., Rivas-Davila, J., IEEE IEEE. 2019

View details for Web of Science ID 000493056900007
On the Optimal Input Voltage of a Class-E Power Amplifier with GaN HEMTs at MHz Frequency Operation Surakitbovorn, K., Gu, L., Rivas-Davila, J., IEEE IEEE. 2019

View details for Web of Science ID 000493056900032
MRI Compatible DC Modulator for an Envelope Tracking Transmitter Braun, W. D., Gu, L., Scott, G., Rivas-Davila, J., IEEE IEEE. 2019

View details for Web of Science ID 000493056900062
Low Loss Gate Driving''Techniques of the Cascode GaN/SiC Power Device at High Frequencies Xu, J., Gu, L., Rivas-Davila, J., IEEE IEEE. 2019

View details for Web of Science ID 000493056900096
Compact Fast-Switching DC and Resonant RF Drivers for a Dual-Mode Imaging and HIFU 2D CMUT Array Stedman, Q., Gu, L., Pai, C., Rasmussen, M., Brenner, K., Ma, B., Ergun, A., Davila, J., Khuri-Yakub, B., IEEE IEEE. 2019: 1951–54

View details for Web of Science ID 000510220100500
Cascode GaN/SiC Power Device for MHz Switching Xu, J., Gu, L., Ye, Z., Kargarrazi, S., Rivas-Davila, J., IEEE IEEE. 2019: 2780–85

View details for Web of Science ID 000475931102148
Duty Cycle and Frequency Modulations in Class-E DC-DC Converters for a Wide Range of Input and Output Voltages IEEE TRANSACTIONS ON POWER ELECTRONICS Park, S., Rivas-Davila, J. 2018; 33 (12): 10524–38

View details for DOI 10.1109/TPEL.2018.2809666

View details for Web of Science ID 000445355900046
C-OSS Losses in 600 V GaN Power Semiconductors in Soft-Switched, High- and Very-High-Frequency Power Converters IEEE TRANSACTIONS ON POWER ELECTRONICS Zulauf, G., Park, S., Liang, W., Surakitbovorn, K., Rivas-Davila, J. 2018; 33 (12): 10748–63

View details for DOI 10.1109/TPEL.2018.2800533

View details for Web of Science ID 000445355900066
A Wide-Input-Range High-Efficiency Step-Down Power Factor Correction Converter Using a Variable Frequency Multiplier Technique IEEE TRANSACTIONS ON POWER ELECTRONICS Gu, L., Liang, W., Praglin, M., Chakraborty, S., Rivas-Davila, J. 2018; 33 (11): 9399–9411

View details for DOI 10.1109/TPEL.2018.2796582

View details for Web of Science ID 000442337500029
An Integrated RF Power Delivery and Plasma Micro-Thruster System for Nano-Satellites FRONTIERS IN PHYSICS Liang, W., Charles, C., Raymond, L., Stuchbery, A., Surakitbovorn, K., Gu, L., Boswell, R., Rivas-Davila, J. 2018; 6

View details for DOI 10.3389/fphy.2018.00115

View details for Web of Science ID 000447153600001
Design of a Class-DE Rectifier with Shunt Inductance and Nonlinear Capacitance for High-Voltage Conversion IEEE TRANSACTIONS ON POWER ELECTRONICS Park, S., Rivas, J. M. 2018; 33 (3): 2282–94

View details for DOI 10.1109/TPEL.2017.2693271

View details for Web of Science ID 000417819300037
Active Power Device Selection in High- and Very-High-Frequency Power Converters IEEE Transactions on Power Electronics Zulauf, G. D., Tong, Z., Plummer, J. D., Rivas-Davila, J. M. 2018: 1

View details for DOI 10.1109/TPEL.2018.2874420
Design of a GaN-Based Wireless Power Transfer System at 13.56 MHz to Replace Conventional Wired Connection in a Vehicle Surakitbovorn, K., Rivas-Davilla, J., IEEE IEEE. 2018: 3848–54

View details for Web of Science ID 000449328903127
FPGA-based Dynamic Duty Cycle and Frequency Controller for a Class-E-2 DC-DC Converter Park, S., Rivas-Davila, J., IEEE IEEE. 2018: 282–88

View details for Web of Science ID 000449328900036
High-Frequency Resonant Converter with Synchronous Rectification for High Conversion Ratio and Variable Load Operation Gu, L., Surakitbovorn, K., Rivas-Davila, J., IEEE IEEE. 2018: 632–38

View details for Web of Science ID 000449328900092
COSS Measurements for Superjunction MOSFETs: Limitations and Opportunities IEEE Transactions on Electron Devices Zulauf, G. D., Roig-Guitart, J., Plummer, J. D., Rivas-Davila, J. M. 2018: 1-7

View details for DOI 10.1109/TED.2018.2880952
A Wide Input Range Isolated Stacked Resonant Switched-Capacitor dc-dc Converter for High Conversion Ratios Li, Y., Gu, L., Hariya, A., Ishizuka, Y., Rivas-Davila, J., Sanders, S., IEEE IEEE. 2018

View details for Web of Science ID 000455139800027
Designing a 40.68 MHz power-combining resonant inverter with eGaN FETs for plasma generation Choi, J., Ooue, Y., Furukawa, N., Rivas, J., IEEE IEEE. 2018: 1322–27

View details for Web of Science ID 000455187601103
Substrate Bias Effect on E-Mode GaN-on-Si HEMT COSS Losses Zhuang, J., Zulauf, G., Rivas-Davila, J., IEEE IEEE. 2018: 130–33

View details for Web of Science ID 000455147700024
Estimating the Reliability of Series-Connected Schottky Diodes for High-Frequency Rectification Park, S., Zulauf, G., Rivas-Davila, J., IEEE IEEE. 2018

View details for Web of Science ID 000455139800018
Considerations for Active Power Device Selection in High- and Very-High-Frequency Power Converters Zulauf, G., Tong, Z., Rivas-Davila, J., IEEE IEEE. 2018

View details for Web of Science ID 000455139800003
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 Choi, J., Xu, J., Makhoul, R., Rivas, J., IEEE IEEE. 2018

View details for Web of Science ID 000455139800129
A Study on Off-State Losses in Silicon-Carbide Schottky Diodes Tong, Z., Zulauf, G., Rivas-Davila, J., IEEE IEEE. 2018

View details for Web of Science ID 000455139800133
Design of a GaN-Based, Inductor-less, Wireless Power Transfer System at 40.68 MHz Surakitbovorn, K., Rivas-Davila, J., IEEE IEEE. 2018

View details for Web of Science ID 000455139800041
High-Frequency Bidirectional Resonant Converter for High Conversion Ratio and Variable Load Operation Gu, L., Surakitbovorn, K., Zulauf, G., Chakraborty, S., Rivas-Davila, J., IEEE IEEE. 2018

View details for Web of Science ID 000455139800046
Effect of Class 2 Ceramic Capacitance Variations on Switched Capacitor and Resonant Switched Capacitor Converters Xu, J., Gu, L., Hernandez, E., Rivas-Davila, J., IEEE IEEE. 2018

View details for Web of Science ID 000455139800125
60 V-to-35 kV Input-Parallel Output-Series DC-DC Converter Using Multi-Level Class-DE Rectifiers Park, S., Gu, L., Rivas-Davila, J., IEEE IEEE. 2018: 2235–41

View details for Web of Science ID 000434981902062
C-OSS Losses in Silicon Superjunction MOSFETs across Constructions and Generations Zulauf, G., Rivas-Davila, J. M., IEEE IEEE. 2018: 136–39

View details for Web of Science ID 000467075700033
Vacuum Testing of a Miniaturized Switch Mode Amplifier Powering an Electrothermal Plasma Micro-Thruster FRONTIERS IN PHYSICS Charles, C., Liang, W., Raymond, L., Rivas-Davila, J., Boswell, R. W. 2017; 5

View details for DOI 10.3389/fphy.2017.00036

View details for Web of Science ID 000409039400001
Low-Mass RF Power Inverter for CubeSat Applications Using 3-D Printed Inductors IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS Liang, W., Raymond, L., Praglin, M., Biggs, D., Righetti, F., Cappelli, M., Holman, B., Davila, J. R. 2017; 5 (2): 880-890

View details for DOI 10.1109/JESTPE.2016.2644644

View details for Web of Science ID 000400896000026
Universal Line Input Power Factor Preregulator Using VFX Technique Gu, L., Liang, W., Praglin, M., Chakraborty, S., Rivas-Davila, J., IEEE IEEE. 2017: 1810–15

View details for Web of Science ID 000403242801143
Evaluation of GaN Transistor Losses at MHz Frequencies in Soft Switching Converters Surakitbovorn, K., Davila, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800054
Design of Very-High-Frequency Synchronous Resonant DC-DC Converter for Variable Load Operation Gu, L., Liang, W., Davila, J., IEEE IEEE. 2017: 3447–54

View details for Web of Science ID 000426847403109
The "Smart Dim Fuse": A New Approach to Load Control as a Distributed Energy Resource Goldin, A., Rajagopal, R., Rivetta, C., Davila, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800088
High-frequency, High-power Resonant Inverter with eGaN FET for Wireless Power Transfer IEEE Transactions on Power Electronics Choi, J., Tsukiyama, D., Tsuruda, Y., Rivas-Davila, J. M. 2017

View details for DOI 10.1109/TPEL.2017.2740293
Structurally supportive RF power inverter for a CubeSat electrothermal plasma micro-thruster with PCB inductors Liang, W., Raymond, L., Davila, J., Charles, C., Boswell, R., IEEE IEEE. 2017: 2141-2145

View details for Web of Science ID 000403242802041
A Portable Electrostatic Precipitator to Reduce Respiratory Death in Rural Environments Talukder, S., Park, S., Rivas-Davila, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800040
Isolated Resonant DC-DC Converters with a Loosely Coupled Transformer Park, S., Rivas-Davila, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800017
A compact RF power inverter with reduced EMI for a CubeSat electrothermal micro-thruster Liang, W., Cui, X., Raymond, L., Gu, L., Charles, C., Boswell, R., Rivas-Davila, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800063
A Multi-resonant Gate Driver for Very-High-Frequency (VHF) Resonant Converters Gu, L., Liang, W., Rivas-Davila, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800082
A Unified Model for High-Power, Air-Core Toroidal PCB Inductors Zulauf, G., Liang, W., Rivas-Davila, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800125
Output Capacitance Losses in 600 V GaN Power Semiconductors with Large Voltage Swings at High- and Very-High-Frequencies Zulauf, G., Liang, W., Surakitbovorn, K., Rivas-Davila, J., IEEE IEEE. 2017: 352–59

View details for Web of Science ID 000426933900060
Implementing an impedance compression network to correct misalignment in a wireless power transfer system Choi, J., Rivas, J., IEEE IEEE. 2017

View details for Web of Science ID 000426864800057
Power Loss of GaN Transistor Reverse Diodes in a High Frequency High Voltage Resonant Rectifier Park, S., Rivas-Davila, J., IEEE IEEE. 2017: 1942–45

View details for Web of Science ID 000403242802009
3-D-Printed Air-Core Inductors for High-Frequency Power Converters IEEE TRANSACTIONS ON POWER ELECTRONICS Liang, W., Raymond, L., Rivas, J. 2016; 31 (1): 52-64

View details for DOI 10.1109/TPEL.2015.2441005

View details for Web of Science ID 000361908600008
Low mass RF power inverter for cubesat plasma thruster using 3D printed inductors Liang, W., Raymond, L., Praglin, M., Biggs, D., Righetti, F., Cappelli, M., Holman, B., Davila, J., IEEE IEEE. 2016

View details for Web of Science ID 000389467400093
Resonant Bi-Polar DC Pulse Power Supply for Electroporation Applications Raymond, L., Liang, W., Surakitbovourn, K., Davila, J., IEEE IEEE. 2016

View details for DOI 10.1109/COMPEL.2016.7556758

View details for Web of Science ID 000389467400103
A Design Methodology for Class-D Resonant Rectifier with Parallel LC Tank Park, S., Rivas-Davila, J., IEEE IEEE. 2016

View details for Web of Science ID 000389467400096
Evaluation of a 900 V SiC MOSFET in a 13.56 MHz 2 kW resonant inverter for wireless power transfer Choi, J., Tsukiyama, D., Rivas, J., IEEE IEEE. 2016

View details for Web of Science ID 000389467400091
Comparison of SiC and eGaN devices in a 6.78 MHz 2.2 kW resonant inverter for wireless power transfer Choi, J., Tsukiyama, D., Rivas, J., IEEE IEEE. 2016

View details for Web of Science ID 000400778402013
13.56 MHz High Density DC-DC Converter With PCB Inductors IEEE TRANSACTIONS ON POWER ELECTRONICS Liang, W., Glaser, J., Rivas, J. 2015; 30 (8): 4291-4301

View details for DOI 10.1109/TPEL.2014.2357398

View details for Web of Science ID 000353128500025
27.12MHz GaN Resonant Power Converter with PCB Embedded Resonant Air Core Inductors and Capacitors Liang, W., Raymond, L., Gu, L., Rivas, J., IEEE IEEE. 2015: 4251–56

View details for Web of Science ID 000378882904083
27.12 MHz Isolated High Voltage Gain Multi-Level Resonant DC-DC Converter Raymond, L., Liang, W., Surakitbovorn, K., Davila, J., IEEE IEEE. 2015: 5074-5080

View details for Web of Science ID 000378882905057
13.56 MHz 1.3 kW Resonant Converter with GaN FET for Wireless Power Transfer Choi, J., Tsukiyama, D., Tsuruda, Y., Rivas, J., IEEE IEEE. 2015

View details for Web of Science ID 000380542500072
27.12MHz GaN Bi-directional Resonant Power Converter Gu, L., Liang, W., Raymond, L. C., Rivas-Davila, J., IEEE IEEE. 2015

View details for Web of Science ID 000380547800005
Performance evaluation of diodes in 27.12 MHz Class-D resonant rectifiers under high voltage and high slew rate conditions IEEE 15th Workshop on Control and Modeling for Power Electronics (COMPEL) Raymond, L. C., Liang, W., Rivas, J. M. IEEE. 2014

View details for Web of Science ID 000345760200035
3D Printed Air Core Inductors for High Frequency Power Converters Liang, W., Raymond, L., Rivas, J., IEEE IEEE. 2014: 971–79

View details for Web of Science ID 000411444300137
A 13.56 MHz High Density dc-dc Converter with PCB Inductors Liang, W., Glaser, J., S, Rivas, J., M. 2013
13.56 MHz High Density dc-dc Converter with PCB Inductors Liang, W., Glaser, J., Rivas, J., IEEE IEEE. 2013: 633–40

View details for Web of Science ID 000324988600100
27.12 MHz Large Voltage Gain Resonant Converter with Low Voltage Stress Raymond, L., Liang, W., Choi, J., Rivas, J., IEEE IEEE. 2013: 1820–27

View details for Web of Science ID 000345216902017
27.12 MHz large voltage gain resonant converter with low voltage stress Raymond, L., Liang, W., Choi, J., Rivas, J. 2013
High-Frequency Resonant SEPIC Converter With Wide Input and Output Voltage Ranges IEEE TRANSACTIONS ON POWER ELECTRONICS Hu, J., Sagneri, A. D., Rivas, J. M., Han, Y., Davis, S. M., Perreault, D. J. 2012; 27 (1): 189-200

View details for DOI 10.1109/TPEL.2011.2149543

View details for Web of Science ID 000298048700005
A Very High Frequency DC-DC Converter Based on a Class Phi(2) Resonant Inverter IEEE TRANSACTIONS ON POWER ELECTRONICS Rivas, J. M., Leitermann, O., Han, Y., Perreault, D. J. 2011; 26 (10): 2980-2992

View details for DOI 10.1109/TPEL.2011.2108669

View details for Web of Science ID 000296982100025
A Very High Frequency dc-dc Converter Based on a Class 2 Resonant Inverter IEEE Transactions on Power Electronics Rivas, J., M., Leitermann, O., Han, Y., Perreault, D., J. 2011; 26 (10): 2980-2992
A 500 W Push-pull Dc-dc Power Converter with a 30 MHz Switching Frequency Glaser, J. S., Rivas, J. M., IEEE IEEE. 2010: 654-661

View details for DOI 10.1109/APEC.2010.5433602

View details for Web of Science ID 000278142300103
Very-High-Frequency Resonant Boost Converters IEEE TRANSACTIONS ON POWER ELECTRONICS Pilawa-Podgurski, R. N., Sagneri, A. D., Rivas, J. M., Anderson, D. I., Perreault, D. J. 2009; 24 (5-6): 1654-1665

View details for DOI 10.1109/TPEL.2009.2016098

View details for Web of Science ID 000267036200053
Opportunities and Challenges in Very High Frequency Power Conversion Perreault, D., J., Jingying, H., Rivas, J., M., Han, Y., Leitermann, O., Pilawa-Podgurski, R., C.N. 2009
A high-bandwidth high-power inverter Sabate, J., Rivas, J. M., Szczesny, P., Stevanovic, L., IEEE IEEE. 2009: 5415-5423

View details for Web of Science ID 000275384102132
A high-frequency resonant inverter topology with low-voltage stress IEEE TRANSACTIONS ON POWER ELECTRONICS Rivas, J. M., Han, Y., Leitermann, O., Sagneri, A. D., Perreault, D. J. 2008; 23 (4): 1759-1771

View details for DOI 10.1109/TPEL.2008.924616

View details for Web of Science ID 000258118000017
A High-Frequency Resonant Inverter Topology With Low-Voltage Stress IEEE Transactions on Power Electronics Rivas, J., M., Han, Y., Leitermann, O., Sagneri, A., D., Perreault, D., J. 2008; 23 (4): 1759-1771
High Frequency Resonant SEPIC Converter with Wide Input and Output Voltage Ranges Hu, J., Sagneri, A. D., Rivas, J. M., Han, Y., Davis, S. M., Perreault, D. J., IEEE IEEE. 2008: 1397-+

View details for DOI 10.1109/PESC.2008.4592131

View details for Web of Science ID 000260398500223
A Very High Frequency dc-dc Converter Based on a Class Phi(2) Resonant Inverter Rivas, J. M., Leitermann, O., Han, Y., Perreault, D. J., IEEE IEEE. 2008: 1657-1666

View details for DOI 10.1109/PESC.2008.4592179

View details for Web of Science ID 000260398501033
A high-frequency resonant inverter topology with low voltage stress Rivas, J. M., Han, Y., Leitermann, O., Sagneri, A., Perreault, D. J., IEEE IEEE, ELECTRON DEVICES SOC & RELIABILITY GROUP. 2007: 2705-2717

View details for DOI 10.1109/PESC.2007.4342446

View details for Web of Science ID 000252375205014
Resistance compression networks for radio-frequency power conversion IEEE TRANSACTIONS ON POWER ELECTRONICS Han, Y., Leitermann, O., Jackson, D. A., Rivas, J. M., Perreault, D. J. 2007; 22 (1): 41-53

View details for DOI 10.1109/TPEL.2006.886601

View details for Web of Science ID 000244302700005
Very high frequency resonant boost converters Pilawa-Podgurski, R. N., Sagneri, A. D., Rivas, J. M., Anderson, D. I., Perreault, D. J., IEEE IEEE, ELECTRON DEVICES SOC & RELIABILITY GROUP. 2007: 2718-2724

View details for DOI 10.1109/PESC.2007.4342447

View details for Web of Science ID 000252375205015
New architectures for radio-frequency DC-DC power conversion IEEE TRANSACTIONS ON POWER ELECTRONICS Rivas, J. M., Wahby, R. S., Shafran, J. S., Perreault, D. J. 2006; 21 (2): 380-393

View details for DOI 10.1109/TPEL.2005.869740

View details for Web of Science ID 000236288200011
Design Considerations for Very High Frequency dc-dc Converters Rivas, J., M., Jackson, D., A, Leitermann, O., Sagneri, A., D., Han, Y., Perreault, D., J. 2006
Design considerations for very high frequency dc-dc converters Rivas, J. M., Jackson, D., Leitermann, O., Sagneri, A. D., Han, Y., Perreault, D. J., IEEE IEEE. 2006: 741-751

View details for Web of Science ID 000245402501045
New Architectures for Radio-Frequency dc-dc Power Conversion IEEE Transactions on Power Electronics Rivas, J., M., Wahby, R., S., Shafran, J., S., Perreault, D., J. 2006; 21 (2): 380-393
Resistance compression networks for resonant power conversion Han, Y. H., Leitermann, O., Jackson, D. A., Rivas, J. A., Perreault, D. J., IEEE IEEE. 2005: 1282-1292

View details for DOI 10.1109/PESC.2005.1581795

View details for Web of Science ID 000237036501048
Performance improvement of alternators with switched-mode rectifiers Rivas, J., Perreault, D., Keim, T. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2004: 561-568

View details for DOI 10.1109/TEC.2004.832072

View details for Web of Science ID 000223498000013
Performance improvement of alternators with Switched-Mode Rectifers IEEE Transactions on Energy Conversion. Rivas, J., Perreault, D., Keim, T. 2004; 19 (3): 561-568
New architectures for radio-frequency dc/dc power conversion Rivas, J. M., Wahby, R. S., Shafran, J. S., Perreault, D. J., ieee IEEE. 2004: 4074-4084

View details for DOI 10.1109/PESC.2004.1355197

View details for Web of Science ID 000224587600672
New Architectures for Radio-Frequency dc-dc Power Conversion Rivas, J., M., Wahby, R., S., Shafran, J., S., Perreault, D., J. 2004
Performance improvement of alternators with switched-mode rectifiers Rivas, J., M., Perreault, D., J., Keim, T. 2003
Performance improvement of alternators with switched-mode rectifiers Rivas, J. M., Perreault, D. J., Keim, T., IEEE, IEEE IEEE. 2003: 1984-1991

View details for Web of Science ID 000184497900311
A Very High Frequency dc-dc Converter Based on a Class 2 Resonant Inverter Rivas, J., M., Letermann, O., Han, Y., Perreault, D., J.
A high-frequency resonant inverter topology with low voltage stress Rivas, J., M., Han, Y., Leitermann, O., Sagneri, A., D., Perreault, D., J.