Patents by Inventor Andreas Laschek-Enders

Andreas Laschek-Enders 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: 9912331
    Abstract: A gate driver integrated circuit for driving a gate of an IGBT or MOSFET receives an input signal. In response to a rising edge of the input signal, the integrated circuit causes the gate to be driven in a first sequence of time periods. In each period, the gate is driven high (pulled up) via a corresponding one of a plurality of different effective gate resistances. In response to a falling edge of the input signal, the integrated circuit causes the gate to be driven in a second sequence of time periods. In each period, the gate is driven low (pulled down) via a corresponding one of the different effective gate resistances. In one example, the duration of each time period is set by a corresponding external passive circuit component. The different effective gate resistances are set by external gate resistors disposed between the integrated circuit and the gate.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: March 6, 2018
    Assignee: IXYS Corporation
    Inventor: Andreas Laschek-Enders
  • Publication number: 20170373682
    Abstract: A gate driver integrated circuit for driving a gate of an IGBT or MOSFET receives an input signal. In response to a rising edge of the input signal, the integrated circuit causes the gate to be driven in a first sequence of time periods. In each period, the gate is driven high (pulled up) via a corresponding one of a plurality of different effective gate resistances. In response to a falling edge of the input signal, the integrated circuit causes the gate to be driven in a second sequence of time periods. In each period, the gate is driven low (pulled down) via a corresponding one of the different effective gate resistances. In one example, the duration of each time period is set by a corresponding external passive circuit component. The different effective gate resistances are set by external gate resistors disposed between the integrated circuit and the gate.
    Type: Application
    Filed: August 25, 2017
    Publication date: December 28, 2017
    Inventor: Andreas Laschek-Enders
  • Patent number: 9813055
    Abstract: A gate driver integrated circuit for driving a gate of an IGBT or MOSFET receives an input signal. In response to a rising edge of the input signal, the integrated circuit causes the gate to be driven in a first sequence of time periods. In each period, the gate is driven high (pulled up) via a corresponding one of a plurality of different effective gate resistances. In response to a falling edge of the input signal, the integrated circuit causes the gate to be driven in a second sequence of time periods. In each period, the gate is driven low (pulled down) via a corresponding one of the different effective gate resistances. In one example, the duration of each time period is set by a corresponding external passive circuit component. The different effective gate resistances are set by external gate resistors disposed between the integrated circuit and the gate.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: November 7, 2017
    Assignee: IXYS Corporation
    Inventor: Andreas Laschek-Enders
  • Publication number: 20170288661
    Abstract: A gate driver integrated circuit for driving a gate of an IGBT or MOSFET receives an input signal. In response to a rising edge of the input signal, the integrated circuit causes the gate to be driven in a first sequence of time periods. In each period, the gate is driven high (pulled up) via a corresponding one of a plurality of different effective gate resistances. In response to a falling edge of the input signal, the integrated circuit causes the gate to be driven in a second sequence of time periods. In each period, the gate is driven low (pulled down) via a corresponding one of the different effective gate resistances. In one example, the duration of each time period is set by a corresponding external passive circuit component. The different effective gate resistances are set by external gate resistors disposed between the integrated circuit and the gate.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventor: Andreas Laschek-Enders
  • Patent number: 9210818
    Abstract: A power semiconductor has power terminals arranged in a row at one side of the housing, with control terminals arranged in a row at the other side of the housing. The spacing between adjacent power terminals is greater than the spacing between adjacent control terminals.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: December 8, 2015
    Assignee: IXYS Semiconductor GmbH
    Inventors: Olaf Zschieschang, Andreas Laschek-Enders
  • Patent number: 9129824
    Abstract: A power semiconductor module has four power terminals. An IGBT has a collector connected to the first power terminal and an emitter coupled to the third power terminal. An anti-parallel diode is coupled in parallel with the IGBT. A DC-link is connected between the second and fourth power terminals. The DC-link may involve two diodes and two IGBTs, where the IGBTs are connected in a common collector configuration. The first and second power terminals are disposed in a first line along one side of the module, and the third and fourth power terminals are disposed in a second line along the opposite side of the module. Two identical instances of the module can be interconnected together to form a three-level NPC phase leg having low stray inductances, where the phase leg has two parallel DC-links.
    Type: Grant
    Filed: August 3, 2014
    Date of Patent: September 8, 2015
    Assignee: IXYS Corporation
    Inventor: Andreas Laschek-Enders
  • Publication number: 20150195928
    Abstract: A power semiconductor has power terminals arranged in a row at one side of the housing, with control terminals arranged in a row at the other side of the housing. The spacing between adjacent power terminals is greater than the spacing between adjacent control terminals.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Inventors: Olaf Zschieschang, Andreas Laschek-Enders
  • Patent number: 9042103
    Abstract: A power semiconductor has power terminals arranged in a row at one side of the housing, with control terminals arranged in a row at the other side of the housing. The spacing between adjacent power terminals is greater than the spacing between adjacent control terminals.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: May 26, 2015
    Assignee: IXYS Semiconductor GmbH
    Inventors: Olaf Zschieschang, Andreas Laschek-Enders
  • Publication number: 20140342509
    Abstract: A power semiconductor module has four power terminals. An IGBT has a collector connected to the first power terminal and an emitter coupled to the third power terminal. An anti-parallel diode is coupled in parallel with the IGBT. A DC-link is connected between the second and fourth power terminals. The DC-link may involve two diodes and two IGBTs, where the IGBTs are connected in a common collector configuration. The first and second power terminals are disposed in a first line along one side of the module, and the third and fourth power terminals are disposed in a second line along the opposite side of the module. Two identical instances of the module can be interconnected together to form a three-level NPC phase leg having low stray inductances, where the phase leg has two parallel DC-links.
    Type: Application
    Filed: August 3, 2014
    Publication date: November 20, 2014
    Inventor: Andreas Laschek-Enders
  • Patent number: 8847328
    Abstract: A power semiconductor module has four power terminals. An IGBT has a collector connected to the first power terminal and an emitter coupled to the third power terminal. An anti-parallel diode is coupled in parallel with the IGBT. A DC-link is connected between the second and fourth power terminals. The DC-link may involve two diodes and two IGBTs, where the IGBTs are connected in a common collector configuration. The first and second power terminals are disposed in a first line along one side of the module, and the third and fourth power terminals are disposed in a second line along the opposite side of the module. Two identical instances of the module can be interconnected together to form a three-level NPC phase leg having low stray inductances, where the phase leg has two parallel DC-links.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 30, 2014
    Assignee: IXYS Corporation
    Inventor: Andreas Laschek-Enders
  • Publication number: 20140252410
    Abstract: A power semiconductor module has four power terminals. An IGBT has a collector connected to the first power terminal and an emitter coupled to the third power terminal. An anti-parallel diode is coupled in parallel with the IGBT. A DC-link is connected between the second and fourth power terminals. The DC-link may involve two diodes and two IGBTs, where the IGBTs are connected in a common collector configuration. The first and second power terminals are disposed in a first line along one side of the module, and the third and fourth power terminals are disposed in a second line along the opposite side of the module. Two identical instances of the module can be interconnected together to form a three-level NPC phase leg having low stray inductances, where the phase leg has two parallel DC-links.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: IXYS Corporation
    Inventor: Andreas Laschek-Enders
  • Publication number: 20130021759
    Abstract: A power semiconductor has power terminals arranged in a row at one side of the housing, with control terminals arranged in a row at the other side of the housing. The spacing between adjacent power terminals is greater than the spacing between adjacent control terminals.
    Type: Application
    Filed: May 16, 2012
    Publication date: January 24, 2013
    Applicant: IXYS Semiconductor GmbH
    Inventors: Olaf Zschieschang, Andreas Laschek-Enders
  • Patent number: 7780469
    Abstract: An arrangement between a power semiconductor module and a printed circuit board is disclosed, A printed circuit board includes strip conductors, and a power semiconductor module includes a module housing and power terminals. The power terminals extend to the exterior of the module housing and into contact with the strip conductors. A heat sink is disposed on a side of the power semiconductor module opposite the circuit board. A deformable means is disposed between the module housing and the circuit board and is configured to relieve a contact pressure load on the power terminals. A contact-pressure element is disposed on a side of the circuit board opposite the power semiconductor module. The contact-pressure element is integral with a first housing part of an arrangement housing, and the heat sink is integral with a second housing part of the arrangement housing. The two housing parts enclose the circuit board.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: August 24, 2010
    Assignee: IXYS CH GmbH
    Inventors: Olaf Zschieschang, Andreas Laschek-Enders
  • Publication number: 20080293261
    Abstract: An arrangement between a power semiconductor module and a printed circuit board is disclosed, A printed circuit board includes strip conductors, and a power semiconductor module includes a module housing and power terminals. The power terminals extend to the exterior of the module housing and into contact with the strip conductors. A heat sink is disposed on a side of the power semiconductor module opposite the circuit board. A deformable means is disposed between the module housing and the circuit board and is configured to relieve a contact pressure load on the power terminals. A contact-pressure element is disposed on a side of the circuit board opposite the power semiconductor module. The contact-pressure element is integral with a first housing part of an arrangement housing, and the heat sink is integral with a second housing part of the arrangement housing. The two housing parts enclose the circuit board.
    Type: Application
    Filed: March 26, 2008
    Publication date: November 27, 2008
    Applicant: IXYS Seminconductor GmbH
    Inventors: Olaf Zschieschang, Andreas Laschek-Enders