Patents by Inventor Matthias Kasper

Matthias Kasper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10696922
    Abstract: A process and a plant are specified, with which free fatty acids can be obtained in a simple manner by hydrolysis of fatty acid alkyl esters, especially fatty acid methyl esters (FAME), or alternatively of fatty acid triglycerides present in oils and fats of vegetable and animal origin. According to the invention, a portion of the free fatty acids already produced is recycled back into the reaction mixture, which results in self-acceleration of the hydrolysis reaction.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: June 30, 2020
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Ingo Bauer, Armin Brandner, Gunter Brauner, Matthias Kasper, Peter Potschacher
  • Patent number: 10361624
    Abstract: A power converter circuit includes a plurality of first converter cells, a plurality of second converter cells, and a plurality of DC link capacitors. Each of the plurality of first converter cells is coupled to a corresponding one of the plurality of DC link capacitors. Each of the plurality of second converter cells is coupled to a corresponding one of the plurality of DC link capacitors. At least one of the plurality of second converter cells is configured to, during start-up of the power converter, internally dissipate power received from the corresponding DC link capacitor while a cell output power of the at least one of the plurality of second converter cells is substantially zero.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: July 23, 2019
    Assignee: Infineon Technologies Austria AG
    Inventors: Johann Kolar, Matthias Kasper
  • Publication number: 20190211282
    Abstract: A process and a plant are specified, with which free fatty acids can be obtained in a simple manner by hydrolysis of fatty acid alkyl esters, especially fatty acid methyl esters (FAME), or alternatively of fatty acid triglycerides present in oils and fats of vegetable and animal origin. According to the invention, a portion of the free fatty acids already produced is recycled back into the reaction mixture, which results in self-acceleration of the hydrolysis reaction.
    Type: Application
    Filed: June 27, 2017
    Publication date: July 11, 2019
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Ingo BAUER, Armin BRANDNER, Gunter BRAUNER, Matthias KASPER, Peter POTSCHACHER
  • Patent number: 10008954
    Abstract: In accordance with an embodiment, a method includes driving at least one electronic switch coupled to at least one inductor in a converter stage of a switched mode power supply based on a clock signal, and modulating a clock frequency of the clock signal over a predefined first frequency range around a center frequency such that a frequency spectrum of the clock signal is asymmetric. The switched mode power supply includes a filter coupled between the converter stage and an input of the switched mode power supply.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 26, 2018
    Assignee: Infineon Technologies Austria AG
    Inventors: Johann Kolar, Matthias Kasper, Cheng-Wei Chen
  • Publication number: 20180159424
    Abstract: A power converter circuit includes a plurality of first converter cells, a plurality of second converter cells, and a plurality of DC link capacitors. Each of the plurality of first converter cells is coupled to a corresponding one of the plurality of DC link capacitors. Each of the plurality of second converter cells is coupled to a corresponding one of the plurality of DC link capacitors. At least one of the plurality of second converter cells is configured to, during start-up of the power converter, internally dissipate power received from the corresponding DC link capacitor while a cell output power of the at least one of the plurality of second converter cells is substantially zero.
    Type: Application
    Filed: December 6, 2016
    Publication date: June 7, 2018
    Inventors: Johann Kolar, Matthias Kasper
  • Publication number: 20180109198
    Abstract: In accordance with an embodiment, a method includes driving at least one electronic switch coupled to at least one inductor in a converter stage of a switched mode power supply based on a clock signal, and modulating a clock frequency of the clock signal over a predefined first frequency range around a center frequency such that a frequency spectrum of the clock signal is asymmetric. The switched mode power supply includes a filter coupled between the converter stage and an input of the switched mode power supply.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 19, 2018
    Inventors: Johann Kolar, Matthias Kasper, Cheng-Wei Chen
  • Patent number: 9929662
    Abstract: A method includes receiving a periodic voltage by a power converter comprising a plurality of converter cells and, in a series of time frames of equal duration, alternating an average power level of power converted by at least one converter cell of the plurality of converter cells. Each of the series of time frames corresponds to a time period between sequential zero crossings of the periodic voltage.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 27, 2018
    Assignee: Infineon Technologies Austria AG
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper
  • Patent number: 9837921
    Abstract: A method includes converting power by a power converter comprising a plurality of converter cells and at least one filter cell, receiving a cell input power at a cell input and providing a cell output power at a cell output of at least one of the plurality of converter cells, and operating the filter cell in one of an input power mod, in which the filter cell receives an input power, and an output power mode, in which the filter cell provides an output power.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: December 5, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper
  • Patent number: 9780676
    Abstract: A power converter circuit includes a switching circuit with at least one electronic switch, a capacitor configured to provide or receive a voltage with a predefined voltage level, at least one first inductor, and a snubber circuit. The snubber circuit includes at least one second inductor inductively coupled to the at least one first inductor and electrically coupled to the capacitor.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: October 3, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Johann Kolar, Matthias Kasper
  • Patent number: 9762134
    Abstract: A method includes converting power by a power converter comprising a plurality of converter cells, and selectively operating at least one converter cell of the plurality of converter cells in one of an active and an inactive mode based on a level of a power reference signal.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: September 12, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper
  • Patent number: 9755537
    Abstract: A power converter includes a plurality of first converter cells, a plurality of second converter cells, and a plurality of DC link capacitors. Each DC link capacitor links one of the plurality of first converter cells and one of the plurality of second converter cells. A failure management unit is configured to detect a faulty converter cell, and to deactivate the faulty converter cell while maintaining a power conversion operation of the power converter.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: September 5, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Johann Kolar, Gerald Deboy, Matthias Kasper
  • Publication number: 20170244330
    Abstract: A power converter circuit includes a switching circuit with at least one electronic switch, a capacitor configured to provide or receive a voltage with a predefined voltage level, at least one first inductor, and a snubber circuit. The snubber circuit includes at least one second inductor inductively coupled to the at least one first inductor and electrically coupled to the capacitor.
    Type: Application
    Filed: February 22, 2016
    Publication date: August 24, 2017
    Inventors: Johann Kolar, Matthias Kasper
  • Patent number: 9729071
    Abstract: A method includes converting power by a power converter comprising a plurality of converter cells, and selectively operating at least one converter cell of the plurality of converter cells in one of an active and an inactive mode based on a level of a power reference signal.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: August 8, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper
  • Publication number: 20160261205
    Abstract: A power converter includes a plurality of first converter cells, a plurality of second converter cells, and a plurality of DC link capacitors. Each DC link capacitor links one of the plurality of first converter cells and one of the plurality of second converter cells. A failure management unit is configured to detect a faulty converter cell, and to deactivate the faulty converter cell while maintaining a power conversion operation of the power converter.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 8, 2016
    Inventors: Johann Kolar, Gerald Deboy, Matthias Kasper
  • Publication number: 20160072395
    Abstract: A power converter circuit includes a plurality of converter cells. At least a first converter cell of the plurality of converter cells has a first operational characteristic. At least a second converter cell of the plurality of converter cells has a second operational characteristic different than the first operational characteristic.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper
  • Publication number: 20160072394
    Abstract: A method includes converting power by a power converter comprising a plurality of converter cells, and selectively operating at least one converter cell of the plurality of converter cells in one of an active and an inactive mode based on a level of a power reference signal.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper
  • Publication number: 20160072396
    Abstract: A method includes receiving a periodic voltage by a power converter comprising a plurality of converter cells and, in a series of time frames of equal duration, alternating an average power level of power converted by at least one converter cell of the plurality of converter cells. Each of the series of time frames corresponds to a time period between sequential zero crossings of the periodic voltage.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper
  • Publication number: 20160072397
    Abstract: A method includes converting power by a power converter comprising a plurality of converter cells and at least one filter cell, receiving a cell input power at a cell input and providing a cell output power at a cell output of at least one of the plurality of converter cells, and operating the filter cell in one of an input power mod, in which the filter cell receives an input power, and an output power mode, in which the filter cell provides an output power.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Gerald Deboy, Johann Kolar, Matthias Kasper