Patents by Inventor Thomas Bisig

Thomas Bisig 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: 12063004
    Abstract: A method for monitoring the operation of a frequency converter (1), which is designed to drive an electric motor (2), wherein the method comprises the following steps: generating phase voltages (u1, u2, u3) for corresponding phase sections (2.1, 2.2, 2.3) of the electric motor (2), ascertaining a voltage rotating field, measuring occurring phase currents (i1, i2, i3), ascertaining a current rotating field depending on the measured phase currents (i1, i2, i3), calculating a phase difference between the voltage rotating field and the current rotating field and/or calculating a frequency difference between the frequency of the voltage rotating field and the frequency of the current rotating field, and determining a fault state when the phase difference exceeds a phase difference threshold value and/or when the frequency difference exceeds a frequency difference threshold value.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: August 13, 2024
    Assignee: Lenze SE
    Inventors: Johannes Brandt, Torsten Wedemeyer, Thomas Bisig
  • Publication number: 20220247339
    Abstract: A method for monitoring the operation of a frequency converter (1), which is designed to drive an electric motor (2), wherein the method comprises the following steps: generating phase voltages (u1, u2, u3) for corresponding phase sections (2.1, 2.2, 2.3) of the electric motor (2), ascertaining a voltage rotating field, measuring occurring phase currents (i1, i2, i3), ascertaining a current rotating field depending on the measured phase currents (i1, i2, i3), calculating a phase difference between the voltage rotating field and the current rotating field and/or calculating a frequency difference between the frequency of the voltage rotating field and the frequency of the current rotating field, and determining a fault state when the phase difference exceeds a phase difference threshold value and/or when the frequency difference exceeds a frequency difference threshold value. pa (FIG.
    Type: Application
    Filed: November 26, 2019
    Publication date: August 4, 2022
    Inventors: Johannes BRANDT, Torsten WEDEMEYER, Thomas BISIG
  • Patent number: 10734151
    Abstract: A transformer for switched-mode power supplies includes a magnetizable core having a winding axis, at least one primary winding, which is formed by a primary winding conductor which at least partly surrounds the winding axis of the core, and at least one secondary winding, which is formed by a secondary winding conductor. The secondary winding conductor surrounds the primary winding conductor. The secondary winding is formed in one layer, and a cross section of the secondary winding conductor is rectangular, in particular square.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: August 4, 2020
    Assignee: Schmidhauser AG
    Inventors: Dirk Schekulin, Silvia Gross-Kaeufler, Chriss Haertsch, Thomas Bisig, Alex Itten, Piere Cavin
  • Patent number: 10699836
    Abstract: An inductor includes a magnetizable core with a winding axis and at least one winding. The winding is formed by a conductor which at least partly surrounds the winding axis of the core. The winding is formed in one layer and a cross section of the conductor is rectangular, in particular square.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: June 30, 2020
    Assignee: Schmidhauser AG
    Inventors: Dirk Schekulin, Silvia Gross-Kaeufler, Chriss Haertsch, Thomas Bisig, Alex Itten, Piere Cavin
  • Patent number: 10389304
    Abstract: A system includes a number of frequency converters, wherein a respective frequency converter has a wired data interface and a frequency converter parameter memory. The system further includes a number of wireless local area network modules, wherein a respective WLAN module has a wired data interface. The data interface of the WLAN module can be coupled to the data interface of a frequency converter for the purpose of bidirectional data exchange, wherein the frequency converter parameter memory of a frequency converter is designed to store values of a number of frequency converter WLAN parameters.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 20, 2019
    Assignee: Schmidhauser AG
    Inventors: Thomas Bisig, Thomas Lange, Siegfried Haas
  • Patent number: 10346264
    Abstract: A frequency converter control unit has: a serial control unit interface, a control unit clock pulse generator for generating a control unit clock pulse, and a control unit processor which is designed to define a control parameter depending on an actual value. A power unit has a data connection to the control unit and has several power semiconductors, a power unit clock pulse generator for generating an adjustable power unit clock pulse, a serial power unit interface, a clock pulse generator adjustment unit which has a signal connection to the power unit interface and which adjusts the power unit clock pulse depending on signals received by the power unit on the power unit interface, a power unit processor which controls the power semiconductors depending on the control parameter and the power unit clock pulse, and a sensor unit that determines the actual value. The control unit transmits the control parameter via the control unit interface to the power unit.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: July 9, 2019
    Assignee: Schmidhauser AG
    Inventor: Thomas Bisig
  • Patent number: 10256736
    Abstract: A DC-DC converter includes a first half-bridge circuit, a second half-bridge circuit, at least one transformer having at least one primary winding and at least one secondary winding, wherein the first and second half-bridge circuits are designed to generate an AC voltage at the at least one primary winding, and a rectifier circuit having an output terminal. The output terminal includes a first output terminal pole and a second output terminal pole. The rectifier circuit includes at least one rectifier element. The rectifier circuit is designed to rectify a voltage present at the at least one secondary winding and to output it at the output terminal. The rectifier circuit includes a polarity reversal protection transistor, the collector-emitter path of which or the drain-source path of which is looped in between a terminal of the at least one rectifier element and the first or the second output terminal pole of the output terminal.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: April 9, 2019
    Assignee: Schmidhauser AG
    Inventors: Dirk Schekulin, Silvia Gross, Chris Haertsch, Thomas Bisig, Alex Itten, Pierre Cavin
  • Publication number: 20180278212
    Abstract: A system includes a number of frequency converters, wherein a respective frequency converter has a wired data interface and a frequency converter parameter memory. The system further includes a number of wireless local area network modules, wherein a respective WLAN module has a wired data interface. The data interface of the WLAN module can be coupled to the data interface of a frequency converter for the purpose of bidirectional data exchange, wherein the frequency converter parameter memory of a frequency converter is designed to store values of a number of frequency converter WLAN parameters.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 27, 2018
    Inventors: Thomas BISIG, Thomas LANGE, Siegfried HAAS
  • Publication number: 20170357556
    Abstract: A frequency converter has a control unit. The control unit has: a serial control unit interface, a control unit clock pulse generator for generating a control unit clock pulse, wherein data are transmitted via the serial control unit interface depending on the control unit clock pulse, and a control unit processor which is designed to define at least one control parameter depending on at least one actual value.
    Type: Application
    Filed: December 17, 2015
    Publication date: December 14, 2017
    Inventor: Thomas BISIG
  • Publication number: 20150280589
    Abstract: A DC-DC converter includes a first half-bridge circuit, a second half-bridge circuit, at least one transformer having at least one primary winding and at least one secondary winding, wherein the first and second half-bridge circuits are designed to generate an AC voltage at the at least one primary winding, and a rectifier circuit having an output terminal. The output terminal includes a first output terminal pole and a second output terminal pole. The rectifier circuit includes at least one rectifier element. The rectifier circuit is designed to rectify a voltage present at the at least one secondary winding and to output it at the output terminal. The rectifier circuit includes a polarity reversal protection transistor, the collector-emitter path of which or the drain-source path of which is looped in between a terminal of the at least one rectifier element and the first or the second output terminal pole of the output terminal.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 1, 2015
    Inventors: Dirk Schekulin, Silvia Gross, Chris Haertsch, Thomas Bisig, Alex Itten, Pierre Cavin
  • Publication number: 20140327505
    Abstract: An inductor includes a magnetizable core with a winding axis and at least one winding. The winding is formed by a conductor which at least partly surrounds the winding axis of the core. The winding is formed in one layer and a cross section of the conductor is rectangular, in particular square.
    Type: Application
    Filed: August 20, 2012
    Publication date: November 6, 2014
    Applicant: Schmidhauser AG
    Inventors: Dirk Schekulin, Silvia Gross-Kaeufler, Chriss Haertsch, Thomas Bisig, Alex Itten, Piere Cavin
  • Publication number: 20140300438
    Abstract: A transformer for switched-mode power supplies includes a magnetizable core having a winding axis, at least one primary winding, which is formed by a primary winding conductor which at least partly surrounds the winding axis of the core, and at least one secondary winding, which is formed by a secondary winding conductor. The secondary winding conductor surrounds the primary winding conductor. The secondary winding is formed in one layer, and a cross section of the secondary winding conductor is rectangular, in particular square.
    Type: Application
    Filed: August 20, 2012
    Publication date: October 9, 2014
    Applicant: Schmidhauser AG
    Inventors: Dirk Schekulin, Silvia Gross-Kaeufler, Chriss Haertsch, Thomas Bisig, Alex Itten, Piere Cavin
  • Publication number: 20070193378
    Abstract: The inventive sensor illuminates the powder layer (40) by means of sensing segments (30, 31, 32), said powder layer scattering the measuring beams. Flaws in the powder layer lead to increased reflection such that a reflected measuring beam is reflected into the segments (30, 31, 31). The reflected beams are guided to a control unit (21) by the fiber lines. Said control unit recognizes flaws according to fluctuations in the intensity of reflected beams and generates a corresponding control signal.
    Type: Application
    Filed: September 16, 2004
    Publication date: August 23, 2007
    Inventors: Urs Feuz, Thomas Bisig