Inventor · disambiguated record
Johann Kolar
Also filed as: KOLAR JOHANN · KOLAR JOHANN W · KOLAR JOHANN WALTER
49 granted patents·9 pending applications·240 citations·filing 1997–2025
98Inventor score
Files withINFINEON TECHNOLOGIES AUSTRIA AG22NABTESCO CORP4PRODRIVE TECH INNOVATION SERVICES B V4ABB RESEARCH LTD3BOSCH GMBH ROBERT3
Top patents by PatentIndex Score
58 records- 0191US9780676B2Power converter with a snubber circuitINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2016·Granted Oct 3, 2017·9 cites·13 claims
- 0290US9843199B2Inductive power transfer system and method for operating an inductive power transfer systemABB TECHNOLOGY AG·Filed 2015·Granted Dec 12, 2017·21 cites·16 claims
- 0390US8570776B2Method and device for determining a control scheme for an active power filterKOLAR JOHANN W·Filed 2011·Granted Oct 29, 2013·24 cites·26 claims
- 0488US9007102B2Active gate drive circuitABB RESEARCH LTD·Filed 2014·Granted Apr 14, 2015·10 cites·20 claims
- 0588US8963585B2Gate driver unit for electrical switching deviceABB RESEARCH LTD·Filed 2013·Granted Feb 24, 2015·9 cites·3 claims
- 0688US8760214B2JFET series connectionBIELA JÜRGEN·Filed 2010·Granted Jun 24, 2014·15 cites·16 claims
- 0788US8604841B2Gate driver unit for electrical switching deviceLOBSIGER YANICK·Filed 2011·Granted Dec 10, 2013·14 cites·11 claims
- 0885US9543855B2Voltage source converter (VSC) with neutral-point-clamped (NPC) topology and method for operating such voltage source converterALSTOM TECHNOLOGY LTD·Filed 2012·Granted Jan 10, 2017·9 cites·2 claims
- 0985US8710876B2Active gate drive circuitABB RESEARCH LTD·Filed 2013·Granted Apr 29, 2014·10 cites·15 claims
- 1083US11728746B2Current source inverter and method of operating a current source inverterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2020·Granted Aug 15, 2023·2 cites·14 claims
- 1183US8723589B2Switching device with a cascode circuitBIELA JÜRGEN·Filed 2010·Granted May 13, 2014·9 cites·18 claims
- 1282US11677308B2Multi-phase converter topology for multi-phase and single-phase operationPRODRIVE TECH INNOVATION SERVICES B V·Filed 2022·Granted Jun 13, 2023·1 cites·11 claims
- 1382US9762134B2Multi-cell power conversion method and multi-cell power converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2014·Granted Sep 12, 2017·6 cites·35 claims
- 1482US8912840B2Switching device with a JFET series arrangementAGGELER DANIEL·Filed 2011·Granted Dec 16, 2014·10 cites·7 claims
- 1581US9755537B2Multi-cell power conversion method with failure detection and multi-cell power converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2015·Granted Sep 5, 2017·4 cites·16 claims
- 1679US11569737B2Transformer for a three-port voltage converter, three-port voltage converter and method for transmitting electrical powerBOSCH GMBH ROBERT·Filed 2018·Granted Jan 31, 2023·2 cites·7 claims
- 1779US11043905B2AC-AC power converterNABTESCO CORP·Filed 2019·Granted Jun 22, 2021·3 cites·9 claims
- 1877US11404962B2Switched mode power converter that is switched using current thresholdsINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2019·Granted Aug 2, 2022·2 cites·18 claims
- 1977US2025379520A1Dc/dc converter circuitINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2025·Application pending·0 cites
- 2075US11228249B2Power converter circuit with a main converter and an auxiliary converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2018·Granted Jan 18, 2022·2 cites·23 claims
- 2174US10008954B2Switching frequency modulation in a switched mode power supplyINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2016·Granted Jun 26, 2018·2 cites·20 claims
- 2273US9929662B2Alternating average power in a multi-cell power converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2014·Granted Mar 27, 2018·3 cites·25 claims
- 2373US2025373176A1Multi-phase resonant power converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2025·Application pending·0 cites
- 2471US11165339B2Method for operating a power converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2020·Granted Nov 2, 2021·1 cites·31 claims
- 2568US11101725B2Rotary electric machine and non-contact power generatorNABTESCO CORP·Filed 2017·Granted Aug 24, 2021·1 cites·19 claims
- 2668US10177681B2Power converter including an autotransformer and power conversion methodINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2016·Granted Jan 8, 2019·2 cites·23 claims
- 2767US9837921B2Multi-cell power conversion method and multi-cell power converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2014·Granted Dec 5, 2017·2 cites·49 claims
- 2866US11342853B2Power converter circuit with a main converter and an auxiliary converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2020·Granted May 24, 2022·0 cites·11 claims
- 2966US7613273B2Apparatus with a moving system and a stationary systemSIEMENS AG·Filed 2007·Granted Nov 3, 2009·8 cites·18 claims
- 3064US9331561B2Method to minimize input current harmonics of power systems such as ESP power systemsKOLAR JOHANN WALTER·Filed 2011·Granted May 3, 2016·4 cites·12 claims
- 3163US12142661B2Automatic reverse blocking bidirectional switchINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2021·Granted Nov 12, 2024·0 cites·11 claims
- 3260US7542311B2Method for operating a converter circuit, and device for carrying out the methodABB SCHWEIZ AG·Filed 2008·Granted Jun 2, 2009·6 cites·20 claims
- 3359US11817243B2Inductive component and high-frequency filter deviceBOSCH GMBH ROBERT·Filed 2019·Granted Nov 14, 2023·0 cites·10 claims
- 3457US11894775B2Power conversion method using a synergetic control of two power convertersINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2021·Granted Feb 6, 2024·0 cites·18 claims
- 3556US2024333192A1Motor drive apparatusNABTESCO CORP·Filed 2024·Application pending·0 cites
- 3655US12323047B2Method of operating a power converter arrangement, control circuit and power converter arrangementINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2022·Granted Jun 3, 2025·0 cites·28 claims
- 3754US12199519B2Method for operating a current source converter, control circuit, and current source converterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2022·Granted Jan 14, 2025·0 cites·15 claims
- 3854US10404171B2Power converter circuit with a switched mode power converter that is switched based upon a measured inductor current and dynamically-determined first and second thresholdsINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2018·Granted Sep 3, 2019·0 cites·28 claims
- 3953US9110119B2Electric current measurement methodSASAKI SATORU·Filed 2013·Granted Aug 18, 2015·1 cites·5 claims
- 4053US5892352ASynchronization of the switching action of hysteresis current controlled parallel connected power electronics systemsUNIV MINNESOTA·Filed 1997·Granted Apr 6, 1999·21 cites·10 claims
- 4152US11177741B2AC-AC converter circuitNABTESCO CORP·Filed 2020·Granted Nov 16, 2021·0 cites·7 claims
- 4250US6700806B2Unidirectional three phase pulse controlled rectifier system with failed phase voltage operationDELTA ENERGY SYSTEMS SWITZERLA·Filed 2001·Granted Mar 2, 2004·9 cites·4 claims
- 4349US2025132686A1Multi-Phase Resonant Power ConverterINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2023·Application pending·0 cites
- 4448US11451132B2Multi-phase converter topology for multi-phase and single-phase operationPRODRIVE TECH BV·Filed 2019·Granted Sep 20, 2022·0 cites·18 claims
- 4548US10819241B2Isolated DC/DC converter for controlling power flows between three DC terminalsBOSCH GMBH ROBERT·Filed 2018·Granted Oct 27, 2020·0 cites·10 claims
- 4647US2025038667A1Method and control circuit for operating a power converter arrangement and power converter arrangementINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2024·Application pending·0 cites
- 4744US10886852B2Electrical power converter having a dual buck power stage and main switching stage and method for controlling such an electrical power converterETEL SA·Filed 2019·Granted Jan 5, 2021·0 cites·20 claims
- 4843US10298107B2Non-contact power generatorNABTESCO CORPRATION·Filed 2017·Granted May 21, 2019·0 cites·20 claims
- 4943US2016072395A1Multi-cell power conversion method and multi-cell power converterINFINEON TECHNOLOGIES AUSTRIA·Filed 2014·Application pending·0 cites
- 5042US2023336072A1Modular reconfigurable electrical ac/dc converterPRODRIVE TECH INNOVATION SERVICES B V·Filed 2021·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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