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Frank Schafmeister

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  • Warburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Alternating asymmetrical phase-shift modulation
    • Patent number 12,119,752
    • Issue date Oct 15, 2024
    • Delta Electronics (Thailand) Public Co., Ltd.
    • Philipp Rehlaender
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Active-clamp forward converter with regenerative snubber
    • Patent number 12,113,435
    • Issue date Oct 8, 2024
    • Delta Electronics (Thailand) Public Co., Ltd.
    • Philipp Rehlaender
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power balancing in interleaved LLC converters via duty cycle variation
    • Patent number 11,664,725
    • Issue date May 30, 2023
    • DET International Holding Limited
    • Philipp Rehlaender
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Current measurement circuit
    • Patent number 10,884,034
    • Issue date Jan 5, 2021
    • Delta Electronics (Thailand) Public Co., Ltd.
    • Robert Pohlmann
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Controller for an inverter
    • Patent number 10,523,006
    • Issue date Dec 31, 2019
    • Delta Electronics (Thailand) Public Co., Ltd.
    • Peter Wallmeier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    LLC balancing
    • Patent number 10,291,142
    • Issue date May 14, 2019
    • DET International Holding Limited
    • Heiko Figge
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Resistorless precharging
    • Patent number 10,230,298
    • Issue date Mar 12, 2019
    • DET International Holding Limited
    • Michael Hufnagel
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Integrated magnetics for soft switching converter
    • Patent number 10,083,791
    • Issue date Sep 25, 2018
    • DET International Holding Limited
    • Hugues Douglas Njiende T.
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Adaptable input phase switching
    • Patent number 9,935,561
    • Issue date Apr 3, 2018
    • DET International Holding Limited
    • Peter Ide
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Resistorless precharging
    • Patent number 9,859,786
    • Issue date Jan 2, 2018
    • DET International Holding Limited
    • Michael Hufnagel
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    LLC balancing
    • Patent number 9,705,416
    • Issue date Jul 11, 2017
    • DET International Holding Limited
    • Heiko Figge
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    LLC balancing
    • Patent number 9,263,951
    • Issue date Feb 16, 2016
    • DET International Holding Limited
    • Heiko Figge
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Resonant capacitor clamping circuit in resonant converter
    • Patent number 8,611,115
    • Issue date Dec 17, 2013
    • DET International Holding Limited
    • Heiko Figge
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Digital slope compensation for current mode control
    • Patent number 8,278,899
    • Issue date Oct 2, 2012
    • DET International Holding Limited
    • Frank Schafmeister
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTI-PHASE TRANSFORMER AND LLC RESONANT CONVERTER
    • Publication number 20250046506
    • Publication date Feb 6, 2025
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp REHLAENDER
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    FLYING-CAPACITOR INVERTER, MULTI-LEVEL PHASE-SHIFT CONVERTER, AND M...
    • Publication number 20240048069
    • Publication date Feb 8, 2024
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp REHLAENDER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ISOLATED FULL-BRIDGE CONVERTER
    • Publication number 20230412086
    • Publication date Dec 21, 2023
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp REHLAENDER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    CONVERTER COMPONENT AND CONVERTER
    • Publication number 20230360850
    • Publication date Nov 9, 2023
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp REHLAENDER
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ON-THE-FLY TOPOLOGY MORPHING FOR FREQUENCY-MULTIPLIER HALF-BRIDGE O...
    • Publication number 20230077388
    • Publication date Mar 16, 2023
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp Rehlaender
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ALTERNATING ASYMMETRICAL PHASE-SHIFT MODULATION
    • Publication number 20220399803
    • Publication date Dec 15, 2022
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp Rehlaender
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ACTIVE-CLAMP FORWARD CONVERTER WITH REGENERATIVE SNUBBER
    • Publication number 20220399804
    • Publication date Dec 15, 2022
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp REHLAENDER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    APPARATUS AND METHOD FOR CHARGING AN ELECTRIC BATTERY VEHICLE
    • Publication number 20220227242
    • Publication date Jul 21, 2022
    • Universitaet Paderborn
    • Frank Schafmeister
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Power Balancing In Interleaved LLC Converters Via Duty Cycle Variation
    • Publication number 20220077773
    • Publication date Mar 10, 2022
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Philipp REHLAENDER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Current Measurement Circuit
    • Publication number 20190146014
    • Publication date May 16, 2019
    • DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
    • Robert POHLMANN
    • G01 - MEASURING TESTING
  • Information Patent Application

    RESISTORLESS PRECHARGING
    • Publication number 20180083528
    • Publication date Mar 22, 2018
    • DET International Holding Limited
    • Michael HUFNAGEL
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Controller for an inverter
    • Publication number 20170163038
    • Publication date Jun 8, 2017
    • DET International Holding Limited
    • Peter Wallmeier
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    LLC BALANCING
    • Publication number 20160197555
    • Publication date Jul 7, 2016
    • DET International Holding Limited
    • Heiko FIGGE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    LLC BALANCING
    • Publication number 20160164418
    • Publication date Jun 9, 2016
    • DET International Holding Limited
    • Heiko FIGGE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    RESISTORLESS PRECHARGING
    • Publication number 20150131343
    • Publication date May 14, 2015
    • DET International Holding Limited
    • Michael HUFNAGEL
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ADAPTABLE INPUT PHASE SWITCHING
    • Publication number 20150123612
    • Publication date May 7, 2015
    • DET International Holding Limited
    • Peter IDE
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    LLC BALANCING
    • Publication number 20140009985
    • Publication date Jan 9, 2014
    • Heiko FIGGE
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    INTEGRATED MAGNETICS FOR SOFT SWITCHING CONVERTER
    • Publication number 20130343091
    • Publication date Dec 26, 2013
    • Hugues Douglas NJIENDE T.
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    RESONANT CAPACITOR CLAMPING CIRCUIT IN RESONANT CONVERTER
    • Publication number 20110255321
    • Publication date Oct 20, 2011
    • DET International Holding Limited
    • Heiko FIGGE
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    DIGITAL SLOPE COMPENSATION FOR CURRENT MODE CONTROL
    • Publication number 20110115458
    • Publication date May 19, 2011
    • Frank SCHAFMEISTER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER