Johann W. Kolar

89 papers C 15Journal 69Unranked 5
YearRankTypeTitle / Venue / Authors
2025 J jnl
Conceptualization and Experimental Verification of a 50 kW 600 V/4 kV/600 V DC Power Supply System for Ultra-Deep-Sea HyDrones.
IEEE Access
David Menzi, Bhagyalakshmi Kakarla, Alexandre Capaul, Marcel Frei, Igor Dorrestijn, Johannes Singer, Johann W. Kolar, Jonas E. Huber
2025 J jnl
Sealless Production Ultracentrifuge and Its Magnetically Self-Bearing Openable Motors for Purification in Viral Nanotechnology.
IEEE Access
Emanuel J. Hubmann, Daniel Steinert, Thomas Nussbaumer, Johann W. Kolar
2024 J jnl
A Novel Pumping Principle for a Total Artificial Heart.
IEEE Trans. Biomed. Eng.
Tim Bierewirtz, Krishnaraj Narayanaswamy, Rosario Giuffrida, Tim Rese, Dominik Bortis, Daniel Zimpfer, Johann W. Kolar, Ulrich Kertzscher, Marcus Granegger
2024 J jnl
Comparative Evaluation of Three-Phase Three-Level GaN and Seven-Level Si Flying Capacitor Inverters for Integrated Motor Drives Considering Overload Operation.
IEEE Access
Gwendolin Rohner, Tino Gfrörer, Pascal S. Niklaus, Dominik Bortis, Mario Schweizer, Johann W. Kolar
2024 J jnl
Wide DC Output Voltage Range Buck-Boost 6-Module Y-Rectifier Featuring Full Power Delivery in 3-Phase and 1-Phase Operation.
IEEE Access
David Menzi, Lorenz Kappeler, Patrick Ziegler, Davide Biadene, Johann W. Kolar
2023 J jnl
Analysis and Experimental Verification of the EMI Signature of Three-Phase Three-Level TCM Soft-Switching Converter Systems.
IEEE Access
Spasoje Milorad Miric, Pascal S. Niklaus, Jonas E. Huber, Christof Stäger, Michael Haider, Johann W. Kolar
2023 J jnl
Third-Harmonic-Type Modulation Minimizing the DC-Link Energy Storage Requirement of Isolated Phase-Modular Three-Phase PFC Rectifier Systems.
IEEE Access
Thomas Langbauer, David Menzi, Valentin Marugg, Franz Vollmaier, Jon Azurza, Matthias Kasper, Johann W. Kolar
2022 J jnl
Novel tubular linear actuator with integrated magnetic bearing.
Elektrotech. Informationstechnik
Spasoje Milorad Miric, Johann W. Kolar, Dominik Bortis
2022 J jnl
Ultra-High-Bandwidth Power Amplifiers: A Technology Overview and Future Prospects.
IEEE Access
Julian Böhler, Jonas E. Huber, Johann Wurz, Martin Stránský, Nissim Uvaidov, Srdjan Srdic, Johann W. Kolar
2021 J jnl
CFD Assisted Evaluation of In Vitro Experiments on Bearingless Blood Pumps.
IEEE Trans. Biomed. Eng.
Pascal Puentener, Marcel Schuck, Johann W. Kolar
2021 — conf
Design and Characterization of a Bearingless Cross-Flow Fan.
AIM
Ivana Bagaric, Daniel Steinert, Florian Wassmer, Thomas Holenstein, Thomas Nussbaumer, Johann W. Kolar
2021 — conf
Modular Multilevel Converter Circulating Current Control with Single Active Filter Module per Phase.
ICIT
Jonas E. Huber, Johann W. Kolar
2020 J jnl
Experimental Analysis and Optimization of a Contactless Eddy-Current-Based Speed Sensor for Smooth Conductive Surfaces.
IEEE Trans. Ind. Electron.
Cheng Gong, Arda Tüysüz, Michael Flankl, Tibor Stolz, Johann W. Kolar, Thomas G. Habetler
2020 C conf
Three-Phase Bidirectional Ultra-Wide Output Voltage Range Current DC-Link AC/DC Buck-Boost Converter.
IECON
Daifei Zhang, Mattia Guacci, Johann W. Kolar, Jordi Everts
2019 J jnl
A 300 000-r/min Magnetically Levitated Reaction Wheel Demonstrator.
IEEE Trans. Ind. Electron.
Arda Tüysüz, Timon Achtnich, Christof Zwyssig, Johann W. Kolar
2019 J jnl
Applicability of Solid-State Transformers in Today's and Future Distribution Grids.
IEEE Trans. Smart Grid
Jonas E. Huber, Johann W. Kolar
2019 J jnl
Design and Experimental Analysis of a New Magnetically Levitated Tubular Linear Actuator.
IEEE Trans. Ind. Electron.
Spasoje Milorad Miric, Pascal Kuttel, Arda Tüysüz, Johann W. Kolar
2019 J jnl
Energy Harvesting With Single-Sided Linear Induction Machines Featuring Secondary Conductive Coating.
IEEE Trans. Ind. Electron.
Michael Flankl, Lucas de Oliveira Baumann, Arda Tüysüz, Johann W. Kolar
2019 J jnl
Scaling and design of miniature high-speed bearingless slice motors.
Elektrotech. Informationstechnik
Marcel Schuck, Pascal Puentener, Thomas Holenstein, Johann W. Kolar
2017 J jnl
Active Magnetic Damper for Ultrahigh-Speed Permanent-Magnet Machines With Gas Bearings.
IEEE Trans. Ind. Electron.
Andreas Looser, Arda Tüysüz, Christof Zwyssig, Johann W. Kolar
2017 — conf
Behavior of the flying capacitor converter under critical operating conditions.
ISIE
Panteleimon Papamanolis, Dominik Neumayr, Johann W. Kolar
2017 J jnl
Cogging Torque Shape Optimization of an Integrated Generator for Electromechanical Energy Harvesting.
IEEE Trans. Ind. Electron.
Michael Flankl, Arda Tüysüz, Johann W. Kolar
2017 J jnl
Low-Jitter GaN E-HEMT Gate Driver With High Common-Mode Voltage Transient Immunity.
IEEE Trans. Ind. Electron.
Mario Mauerer, Arda Tüysüz, Johann W. Kolar
2017 — conf
Planar inverted-F antenna design for a fully implantable mechanical circulatory support system.
ICIT
Oliver Knecht, Yves Jundt, Johann W. Kolar
2016 C conf
Analysis of capacitive power transfer GaN ISOP multi-cell DC/DC converter systems for single-phase telecom power supply modules.
IECON
Michael Antivachis, Matthias Kasper, Dominik Bortis, Johann W. Kolar
2016 J jnl
New Position-Sensing Concept for Miniature Lateral-Stator Machines.
IEEE Trans. Ind. Electron.
Arda Tüysüz, Johann W. Kolar
2016 C conf
Outrunner generator with optimized cogging torque pattern for an electromechanical energy harvester.
IECON
Michael Flankl, Arda Tüysüz, Johann W. Kolar
2016 C conf
Voltage/current measurement performance and power supply rejection in all-digital Class-D power amplifiers.
IECON
Mario Mauerer, Arda Tüysüz, Johann W. Kolar
2016 C conf
Weight and efficiency analysis of switched circuit topologies for modular power electronics in MEA.
IECON
Christoph Gammeter, Florian Krismer, Johann W. Kolar
2015 C conf
Analysis and power scaling of a single-sided linear induction machine for energy harvesting.
IECON
Michael Flankl, Arda Tüysüz, Johann W. Kolar
2015 C conf
Impact of Transcutaneous Energy Transfer on the electric field and specific absorption rate in the human tissue.
IECON
Oliver Knecht, Johann W. Kolar
2015 C conf
Protection of MV/LV solid-state transformers in the distribution grid.
IECON
Thomas Guillod, Florian Krismer, Raphael Färber, Christian M. Franck, Johann W. Kolar
2014 J jnl
3-D Electromagnetic Modeling of EMI Input Filters.
IEEE Trans. Ind. Electron.
Ivana F. Kovacevic, Thomas Friedli, Andreas M. Muesing, Johann W. Kolar
2014 — conf
4.7 A sub-ns response on-chip switched-capacitor DC-DC voltage regulator delivering 3.7W/mm
ISSCC
Toke Meyer Andersen, Florian Krismer, Johann W. Kolar, Thomas Toifl, Christian Menolfi, Lukas Kull, Thomas Morf, Marcel A. Kossel, Matthias Braendli, Peter Buchmann, Pier Andrea Francese
2014 J jnl
A Novel Motor Topology for High-Speed Micro-Machining Applications.
IEEE Trans. Ind. Electron.
Arda Tüysüz, Christof Zwyssig, Johann W. Kolar
2014 J jnl
An Active Magnetic Damper Concept for Stabilization of Gas Bearings in High-Speed Permanent-Magnet Machines.
IEEE Trans. Ind. Electron.
Andreas Looser, Johann W. Kolar
2014 J jnl
Analysis and Design of a 300-W 500 000-r/min Slotless Self-Bearing Permanent-Magnet Motor.
IEEE Trans. Ind. Electron.
Thomas Baumgartner, Ralph M. Burkart, Johann W. Kolar
2014 J jnl
Optimization and Performance Evaluation of an AC-Chopper Ballast for HPS Lamps.
IEEE Trans. Ind. Electron.
Florian Giezendanner, Jürgen Biela, Johann W. Kolar
2014 J jnl
Slotless Bearingless Disk Drive for High-Speed and High-Purity Applications.
IEEE Trans. Ind. Electron.
Daniel Steinert, Thomas Nussbaumer, Johann W. Kolar
2014 C conf
Weight optimization of a machine for airborne wind turbines.
IECON
Christoph Gammeter, Yannick Drapela, Arda Tüysüz, Johann W. Kolar
2013 J jnl
Analysis of High-Efficiency Three-Phase Two- and Three-Level Unidirectional Hybrid Rectifiers.
IEEE Trans. Ind. Electron.
Thiago Batista Soeiro, Johann W. Kolar
2013 J jnl
Automated Design of a High-Power High-Frequency LCC Resonant Converter for Electrostatic Precipitators.
IEEE Trans. Ind. Electron.
Thiago Batista Soeiro, Jonas Mühlethaler, Jorgen Linner, Per Ranstad, Johann W. Kolar
2013 J jnl
Comparative Evaluation of Advanced Three-Phase Three-Level Inverter/Converter Topologies Against Two-Level Systems.
IEEE Trans. Ind. Electron.
Mario Schweizer, Thomas Friedli, Johann W. Kolar
2013 C conf
New modulation and control scheme for phase-modular isolated matrix-type three-phase AC/DC converter.
IECON
Patricio Cortes, Jonas E. Huber, Marcelo Silva, Johann W. Kolar
2013 J jnl
Technological Issues and Industrial Application of Matrix Converters: A Review.
IEEE Trans. Ind. Electron.
Lee Empringham, Johann W. Kolar, José R. Rodríguez, Pat Wheeler, Jon C. Clare
2013 J jnl
The New High-Efficiency Hybrid Neutral-Point-Clamped Converter.
IEEE Trans. Ind. Electron.
Thiago Batista Soeiro, Johann W. Kolar
2012 J jnl
50-N·m/2500-W Bearingless Motor for High-Purity Pharmaceutical Mixing.
IEEE Trans. Ind. Electron.
Bernhard Warberger, Remo Kaelin, Thomas Nussbaumer, Johann W. Kolar
2012 J jnl
A Review of Control and Modulation Methods for Matrix Converters.
IEEE Trans. Ind. Electron.
José R. Rodríguez, Marco Rivera, Johann W. Kolar, Patrick W. Wheeler
2012 J jnl
A Three-Phase Delta Switch Rectifier for Use in Modern Aircraft.
IEEE Trans. Ind. Electron.
Michael Hartmann, Johann Miniböck, Hans Ertl, Johann W. Kolar
2012 C conf
Analysis and design of an ultra-high-speed slotless self-bearing permanent-magnet motor.
IECON
Thomas Baumgartner, Ralph M. Burkart, Johann W. Kolar
2012 J jnl
Bearingless 300-W PMSM for Bioreactor Mixing.
IEEE Trans. Ind. Electron.
Thomas Reichert, Thomas Nussbaumer, Johann W. Kolar
2012 J jnl
Comparative Evaluation of Three-Phase AC-AC Matrix Converter and Voltage DC-Link Back-to-Back Converter Systems.
IEEE Trans. Ind. Electron.
Thomas Friedli, Johann W. Kolar, José R. Rodríguez, Patrick W. Wheeler
2012 J jnl
Efficiency-Optimized High-Current Dual Active Bridge Converter for Automotive Applications.
IEEE Trans. Ind. Electron.
Florian Krismer, Johann W. Kolar
2012 J jnl
Novel Hybrid Modulation Schemes Significantly Extending the Reactive Power Control Range of All Matrix Converter Topologies With Low Computational Effort.
IEEE Trans. Ind. Electron.
Frank Schafmeister, Johann W. Kolar
2012 C conf
Optimal design of EMI filters for single-phase boost PFC circuits.
IECON
Jonas Mühlethaler, Hirofumi Uemura, Johann W. Kolar
2012 C conf
The η-α-Pareto front of inductive power transfer coils.
IECON
Roman Bosshard, Jonas Mühlethaler, Johann W. Kolar, Ivica Stevanovic
2011 J jnl
Comparison of Voltage-Source Inverter Topologies for Two-Phase Bearingless Slice Motors.
IEEE Trans. Ind. Electron.
Martin T. Bartholet, Thomas Nussbaumer, Johann W. Kolar
2011 J jnl
Half-Controlled Boost Rectifier for Low-Power High-Speed Permanent-Magnet Generators.
IEEE Trans. Ind. Electron.
Daniel Krähenbühl, Christof Zwyssig, Johann W. Kolar
2011 J jnl
Optimization of a 5-kW Telecom Phase-Shift DC-DC Converter With Magnetically Integrated Current Doubler.
IEEE Trans. Ind. Electron.
Uwe Badstuebner, Jürgen Biela, Daniel Christen, Johann W. Kolar
2011 J jnl
Review of Three-Phase PWM AC-AC Converter Topologies.
IEEE Trans. Ind. Electron.
Johann W. Kolar, Thomas Friedli, José R. Rodríguez, Patrick W. Wheeler
2011 J jnl
SiC versus Si - Evaluation of Potentials for Performance Improvement of Inverter and DC-DC Converter Systems by SiC Power Semiconductors.
IEEE Trans. Ind. Electron.
Jürgen Biela, Mario Schweizer, Stefan Waffler, Johann W. Kolar
2011 J jnl
The Three-Phase Common-Mode Inductor: Modeling and Design Issues.
IEEE Trans. Ind. Electron.
Marcelo Lobo Heldwein, Luca Dalessandro, Johann W. Kolar
2010 J jnl
Acceleration-Performance Optimization for Motors With Large Air Gaps.
IEEE Trans. Ind. Electron.
Philipp Karutz, Thomas Nussbaumer, Wolfgang Gruber, Johann W. Kolar
2010 J jnl
Accurate Power Loss Model Derivation of a High-Current Dual Active Bridge Converter for an Automotive Application.
IEEE Trans. Ind. Electron.
Florian Krismer, Johann W. Kolar
2010 J jnl
Guideline for a Simplified Differential-Mode EMI Filter Design.
IEEE Trans. Ind. Electron.
Klaus Raggl, Thomas Nussbaumer, Johann W. Kolar
2010 J jnl
Implementation of a Transformerless Common-Mode Active Filter for Offline Converter Systems.
IEEE Trans. Ind. Electron.
Marcelo Lobo Heldwein, Hans Ertl, Jürgen Biela, Johann W. Kolar
2009 J jnl
Comprehensive Design and Optimization of a High-Power-Density Single-Phase Boost PFC.
IEEE Trans. Ind. Electron.
Klaus Raggl, Thomas Nussbaumer, Gregor Doerig, Jürgen Biela, Johann W. Kolar
2009 J jnl
Design Guidelines for Interleaved Single-Phase Boost PFC Circuits.
IEEE Trans. Ind. Electron.
Thomas Nussbaumer, Klaus Raggl, Johann W. Kolar
2009 J jnl
Novel Three-Phase CM/DM Conducted Emission Separator.
IEEE Trans. Ind. Electron.
Marcelo Lobo Heldwein, Jürgen Biela, Hans Ertl, Thomas Nussbaumer, Johann W. Kolar
2009 J jnl
Predictive Control of an Indirect Matrix Converter.
IEEE Trans. Ind. Electron.
Pablo Correa, José R. Rodríguez, Marco Rivera, José R. Espinoza, Johann W. Kolar
2009 J jnl
Robust Angle-Sensorless Control of a PMSM Bearingless Pump.
IEEE Trans. Ind. Electron.
Klaus Raggl, Bernhard Warberger, Thomas Nussbaumer, Simon Burger, Johann W. Kolar
2008 J jnl
An Ultrahigh-Speed, Low Power Electrical Drive System.
IEEE Trans. Ind. Electron.
Christof Zwyssig, Simon D. Round, Johann W. Kolar
2008 J jnl
Comparison of Prediction Techniques to Compensate Time Delays Caused by Digital Control of a Three-Phase Buck-Type PWM Rectifier System.
IEEE Trans. Ind. Electron.
Thomas Nussbaumer, Marcelo Lobo Heldwein, Guanghai Gong, Simon D. Round, Johann W. Kolar
2008 C conf
Design and Performance of a 200 kHz All-SiC JFET Current Source Converter.
IAS
Thomas Friedli, Simon D. Round, Dominik Hassler, Johann W. Kolar
2008 J jnl
Exact Analysis of Three-Phase Rectifiers With Constant Voltage Loads.
IEEE Trans. Circuits Syst. II Express Briefs
Predrag V. Pejovic, Johann W. Kolar
2008 J jnl
Novel Tracking Power Supply for Linear Power Amplifiers.
IEEE Trans. Ind. Electron.
Guanghai Gong, Hans Ertl, Johann W. Kolar
2007 J jnl
Comparison of 3-Phase Wide Output Voltage Range PWM Rectifiers.
IEEE Trans. Ind. Electron.
Thomas Nussbaumer, Johann W. Kolar
2007 C conf
Efficiency Optimization of a 100-W, 500 000-rpm Permanent-Magnet Machine Including Air Friction Losses.
IAS
Jorma Luomi, Christof Zwyssig, Andreas Looser, Johann W. Kolar
2007 J jnl
Parallel Connection of Two Three-Phase Three-Switch Buck-Type Unity-Power-Factor Rectifier Systems With DC-Link Current Balancing.
IEEE Trans. Ind. Electron.
Martina Baumann, Johann W. Kolar
2006 J jnl
Differential Mode Input Filter Design for a Three-Phase Buck-Type PWM Rectifier Based on Modeling of the EMC Test Receiver.
IEEE Trans. Ind. Electron.
Thomas Nussbaumer, Marcelo Lobo Heldwein, Johann W. Kolar
2005 J jnl
A constant output current three-phase diode bridge rectifier employing a novel "Electronic Smoothing Inductor".
IEEE Trans. Ind. Electron.
Hans Ertl, Johann W. Kolar
2005 J jnl
A novel control concept for reliable operation of a three-phase three-switch buck-type unity-power-factor rectifier with integrated boost output stage under heavily unbalanced mains condition.
IEEE Trans. Ind. Electron.
Martina Baumann, Johann W. Kolar
2005 J jnl
Comparative evaluation of three-phase high-power-factor AC-DC converter concepts for application in future More Electric Aircraft.
IEEE Trans. Ind. Electron.
Guanghai Gong, Marcelo Lobo Heldwein, Uwe Drofenik, Johann Miniböck, Kazuaki Mino, Johann W. Kolar
2005 J jnl
Novel concept for mains voltage proportional input current shaping of a VIENNA rectifier eliminating controller multipliers.
IEEE Trans. Ind. Electron.
Johann Miniböck, Johann W. Kolar
2002 J jnl
A novel multicell DC-AC converter for applications in renewable energy systems.
IEEE Trans. Ind. Electron.
Hans Ertl, Johann W. Kolar, Franz C. Zach
2002 J jnl
Analysis of a multilevel multicell switch-mode power amplifier employing the "flying-battery" concept.
IEEE Trans. Ind. Electron.
Hans Ertl, Johann W. Kolar, Franz C. Zach
1999 J jnl
VIENNA rectifier II-a novel single-stage high-frequency isolated three-phase PWM rectifier system.
IEEE Trans. Ind. Electron.
Johann W. Kolar, Uwe Drofenik, Franz C. Zach
1997 J jnl
A novel three-phase utility interface minimizing line current harmonics of high-power telecommunications rectifier modules.
IEEE Trans. Ind. Electron.
Johann W. Kolar, Franz C. Zach
1995 J jnl
A Novel Three-phase Three-Switch Three-Level Unity Power factor Boost-Type PWM Rectifier.
J. Circuits Syst. Comput.
Johann W. Kolar, Franz C. Zach