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Johann W. Kolar

Johann W. Kolar

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Electronics and Electrical Engineering
Switzerland
2026

D-Index & Metrics

Electronics and Electrical Engineering

D-Index
121
Citations
59669
World Ranking
61
National Ranking
3

Johann W. Kolar publication distribution in Electronics and Electrical Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Electronics and Electrical Engineering in 2026. The highlighted bar marks where Johann W. Kolar sits on this spectrum.

34–53 publications: 24 scientists 54–73 publications: 52 scientists 74–93 publications: 114 scientists 94–113 publications: 203 scientists 114–133 publications: 269 scientists 134–153 publications: 355 scientists 154–173 publications: 403 scientists 174–193 publications: 445 scientists 194–213 publications: 430 scientists 214–233 publications: 431 scientists 234–253 publications: 399 scientists 254–273 publications: 366 scientists 274–293 publications: 335 scientists 294–313 publications: 300 scientists 314–333 publications: 276 scientists 334–353 publications: 250 scientists 354–373 publications: 214 scientists 374–393 publications: 187 scientists 394–413 publications: 152 scientists 414–433 publications: 169 scientists 434–453 publications: 147 scientists 454–473 publications: 111 scientists 474–493 publications: 117 scientists 494–513 publications: 103 scientists 514–533 publications: 99 scientists 534–553 publications: 92 scientists 554–573 publications: 75 scientists 574–593 publications: 58 scientists 594–613 publications: 69 scientists 614–633 publications: 50 scientists 634–653 publications: 62 scientists 654–673 publications: 54 scientists 674–693 publications: 44 scientists 694–713 publications: 37 scientists 714–733 publications: 28 scientists 734–753 publications: 26 scientists 754–773 publications: 26 scientists 774–793 publications: 19 scientists 794–813 publications: 23 scientists 814–833 publications: 20 scientists 834–853 publications: 16 scientists 854–873 publications: 20 scientists 874–893 publications: 11 scientists 894–913 publications: 11 scientists 914–933 publications: 16 scientists 934–953 publications: 13 scientists 954–973 publications: 10 scientists 974–993 publications: 11 scientists 994–1,013 publications: 9 scientists 1,014–1,033 publications: 9 scientists 1,034–1,053 publications: 10 scientists 1,054–1,064 publications: 6 scientists 1,065+ publications: 99 scientists
34 publications 1,065+

This scientist: 1,034 publications — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,065 publications or more.

Johann W. Kolar D-index placement in Electronics and Electrical Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Electronics and Electrical Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Johann W. Kolar sits on this spectrum.

30 D-Index: 178 scientists 31 D-Index: 257 scientists 32 D-Index: 263 scientists 33 D-Index: 262 scientists 34 D-Index: 244 scientists 35 D-Index: 236 scientists 36 D-Index: 211 scientists 37 D-Index: 220 scientists 38 D-Index: 214 scientists 39 D-Index: 214 scientists 40 D-Index: 205 scientists 41 D-Index: 187 scientists 42 D-Index: 194 scientists 43 D-Index: 201 scientists 44 D-Index: 155 scientists 45 D-Index: 189 scientists 46 D-Index: 148 scientists 47 D-Index: 160 scientists 48 D-Index: 134 scientists 49 D-Index: 130 scientists 50 D-Index: 141 scientists 51 D-Index: 156 scientists 52 D-Index: 108 scientists 53 D-Index: 130 scientists 54 D-Index: 112 scientists 55 D-Index: 97 scientists 56 D-Index: 111 scientists 57 D-Index: 102 scientists 58 D-Index: 108 scientists 59 D-Index: 120 scientists 60 D-Index: 103 scientists 61 D-Index: 93 scientists 62 D-Index: 92 scientists 63 D-Index: 74 scientists 64 D-Index: 77 scientists 65 D-Index: 73 scientists 66 D-Index: 64 scientists 67 D-Index: 69 scientists 68 D-Index: 60 scientists 69 D-Index: 39 scientists 70 D-Index: 57 scientists 71 D-Index: 59 scientists 72 D-Index: 46 scientists 73 D-Index: 49 scientists 74 D-Index: 38 scientists 75 D-Index: 35 scientists 76 D-Index: 32 scientists 77 D-Index: 35 scientists 78 D-Index: 31 scientists 79 D-Index: 22 scientists 80 D-Index: 34 scientists 81 D-Index: 31 scientists 82 D-Index: 34 scientists 83 D-Index: 23 scientists 84 D-Index: 18 scientists 85 D-Index: 30 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 20 scientists 89 D-Index: 8 scientists 90 D-Index: 17 scientists 91 D-Index: 7 scientists 92 D-Index: 14 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 12 scientists 97 D-Index: 10 scientists 98 D-Index: 10 scientists 99 D-Index: 12 scientists 100 D-Index: 16 scientists 101 D-Index: 5 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 8 scientists 105 D-Index: 9 scientists 106 D-Index: 13 scientists 107 D-Index: 4 scientists 108 D-Index: 5 scientists 109 D-Index: 10 scientists 110 D-Index: 8 scientists 111+ D-Index: 96 scientists
30 D-Index 111+

This scientist: 121 D-Index — 99th percentile

99% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 111 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Electronics and Electrical Engineering in Switzerland Leader Award
  • 2025 - Research.com Electronics and Electrical Engineering in Switzerland Leader Award
  • 2022 - Research.com Electronics and Electrical Engineering in Switzerland Leader Award
  • 2016 - IEEE William E. Newell Power Electronics Award For contributions to the advancement of three-phase pulse-width modulation (PWM) converter systems and power electronics education.

Overview

Johann W. Kolar is affiliated with ETH Zurich in Switzerland and has contributed extensively to the field of engineering, particularly within electrical and electronic engineering. Their academic output includes 314 publications targeting advanced research topics in engineering. The subfields of study include electrical and electronic engineering, control and systems engineering, biomedical engineering, mechanical engineering, and automotive engineering.

Their research covers several main topics, with significant work on advanced DC-DC converters, multilevel inverters and converters, silicon carbide semiconductor technologies, magnetic bearings and levitation dynamics, microgrid control and optimization, and electromagnetic compatibility and noise suppression, alongside advanced battery technologies research.

Recent notable papers by Kolar include:

  • "Artificial Neural Network (ANN) Based Fast and Accurate Inductor Modeling and Design," 2020, IEEE Open Journal of Power Electronics
  • "Three Levels Are Not Enough: Scaling Laws for Multilevel Converters in AC/DC Applications," 2020, IEEE Transactions on Power Electronics
  • "New Figure-of-Merit Combining Semiconductor and Multi-Level Converter Properties," 2020, IEEE Open Journal of Power Electronics
  • "Monolithic Bidirectional Power Transistors," 2023, IEEE Power Electronics Magazine
  • "Comparative Evaluation of a Full- and Partial-Power Processing Active Power Buffer for Ultracompact Single-Phase DC/AC Converter Systems," 2020, IEEE Journal of Emerging and Selected Topics in Power Electronics

Their work has been published in frequent venues such as:

  • IEEJ Transactions on Electrical and Electronic Engineering
  • IEEE Transactions on Power Electronics
  • IEEE Open Journal of Power Electronics
  • IEEE Journal of Emerging and Selected Topics in Power Electronics
  • Electronics

Kolar has collaborated repeatedly with several co-authors, including Jonas Huber, Dominik Bortis, David Menzi, Narendra Ahuja, and Frede Blaabjerg.

The scientist received the IEEE William E. Newell Power Electronics Award in 2016 for contributions related to the advancement of three-phase pulse-width modulation (PWM) converter systems and power electronics education.

Best Publications

  • Design and Implementation of a Highly Efficient Three-Level T-Type Converter for Low-Voltage Applications

    M. Schweizer;J. W. Kolar

  • An Isolated Three-Port Bidirectional DC-DC Converter With Decoupled Power Flow Management

    Chuanhong Zhao;S.D. Round;J.W. Kolar

  • SiC versus Si—Evaluation of Potentials for Performance Improvement of Inverter and DC–DC Converter Systems by SiC Power Semiconductors

    J Biela;M Schweizer;S Waffler;J W Kolar

  • A novel three-phase utility interface minimizing line current harmonics of high-power telecommunications rectifier modules

    J.W. Kolar;F.C. Zach

  • Efficiency-Optimized High-Current Dual Active Bridge Converter for Automotive Applications

    F. Krismer;J. W. Kolar

  • Influence of the modulation method on the conduction and switching losses of a PWM converter system

    J.W. Kolar;H. Ertl;F.C. Zach

  • The essence of three-phase PFC rectifier systems

    Johann W. Kolar;Thomas Friedli

  • A Review of Control and Modulation Methods for Matrix Converters

    Jose Rodriguez;Marco Rivera;Johan W. Kolar;Patrick W. Wheeler

  • The Essence of Three-Phase PFC Rectifier Systems—Part II

    Thomas Friedli;Michael Hartmann;Johann W. Kolar

  • Review of Three-Phase PWM AC–AC Converter Topologies

    J. W. Kolar;T. Friedli;J. Rodriguez;P. W. Wheeler

  • Closed Form Solution for Minimum Conduction Loss Modulation of DAB Converters

    F. Krismer;J. W. Kolar

  • PWM Converter Power Density Barriers

    Johann W. Kolar;Uwe Drofenik;Juergen Biela;Marcelo Heldwein

  • Core Losses Under the DC Bias Condition Based on Steinmetz Parameters

    J. Muhlethaler;J. Biela;J. W. Kolar;A. Ecklebe

  • Novel Three-Phase AC–AC Sparse Matrix Converters

    J.W. Kolar;F. Schafmeister;S.D. Round;H. Ertl

  • Improved Core-Loss Calculation for Magnetic Components Employed in Power Electronic Systems

    J. Muhlethaler;J. Biela;J. W. Kolar;A. Ecklebe

  • Accurate Power Loss Model Derivation of a High-Current Dual Active Bridge Converter for an Automotive Application

    F. Krismer;J.W. Kolar

  • Comparative Evaluation of Advanced Three-Phase Three-Level Inverter/Converter Topologies Against Two-Level Systems

    M. Schweizer;T. Friedli;J. W. Kolar

  • Accurate Small-Signal Model for the Digital Control of an Automotive Bidirectional Dual Active Bridge

    F. Krismer;J.W. Kolar

  • Optimal ZVS Modulation of Single-Phase Single-Stage Bidirectional DAB AC–DC Converters

    Jordi Everts;Florian Krismer;Jeroen Van den Keybus;Johan Driesen

  • Analytical calculation of the RMS current stress on the DC-link capacitor of voltage-PWM converter systems

    J.W. Kolar;S.D. Round

  • Comparative Evaluation of Three-Phase AC–AC Matrix Converter and Voltage DC-Link Back-to-Back Converter Systems

    T. Friedli;J. W. Kolar;J. Rodriguez;P. W. Wheeler

Frequent Co-Authors

Dominik Bortis
Dominik Bortis ETH Zurich
Jurgen Biela
Jurgen Biela ETH Zurich
S.D. Round
S.D. Round ETH Zurich
Thomas Friedli
Thomas Friedli ABB (Switzerland)
Marcelo L. Heldwein
Marcelo L. Heldwein Technical University of Munich
Jose Rodriguez
Jose Rodriguez San Sebastián University
Patrick Wheeler
Patrick Wheeler University of Nottingham

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