Patents by Inventor Thomas Komma

Thomas Komma 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: 10843579
    Abstract: A charging configuration for the inductive wireless energy transfer to a receiver coil of an electrically operated vehicle. A first circularly wound electrically conductive coil extends in a plane and has a first central opening in the center of the first coil. A second circularly wound electrically conductive coil extends in a plane, coplanar with the first coil, and has a second central opening formed in its center. A ferrite core is supported on a shielding sheet with a rectangular base plate together with the coplanar coils. The coils are arranged in a coil holder on the shielding sheet such that a distance of between 15 and 25 mm remains between the shielding sheet and the bottom edge of the coils.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: November 24, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Komma, Monika Poebl
  • Publication number: 20200357568
    Abstract: Various embodiments include a winding arrangement for at least two interleaved-switching power-electronics converters comprising: a winding core with two partial elements separated from each other by an air gap in the region of mutually facing end surfaces and two windings wound around the winding core to compensate for a DC component of a magnetic flux produced by the two windings during operation of the power-electronics converter. The two windings include strip windings. A winding window of each respective winding is arranged in a segment of the winding core that does not span the air gap.
    Type: Application
    Filed: November 2, 2018
    Publication date: November 12, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Monika Poebl, Thomas Komma
  • Patent number: 10696169
    Abstract: A charging station for an electrically powered vehicle has a connection for an electrical energy source, an inverter and an electronic coil connected to the inverter for wireless energy-transferring coupling of the electrically powered vehicle. The inverter is configured to apply an alternating electric voltage to the electronic coil in resonant operation. The electronic coil is connected to the inverter by way of a compensating circuit with a settable passive electronic energy storage device. The compensating circuit is configured to set a frequency of the alternating voltage by means of the settable passive electronic energy storage device.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: June 30, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Manuel Blum, Thomas Komma, Mirjam Mantel, Monika Poebl
  • Publication number: 20190363636
    Abstract: A DC/DC converter comprising: a first half-bridge connected in parallel to a second half-bridge; a transformer having a primary side connected between respective center points of the first half-bridge and the second half-bridge; and a rectifier connected to a secondary side of the transformer. The first half-bridge and the second half-bridge each comprise a series circuit having switch arrangements. A first respective switch arrangement of each half-bridge is connected in front of the respective center point and a second respective switch arrangement is connected behind the respective center point. Each switch arrangement comprises two power-electronics switches. Each of the half-bridges includes a first capacitor circuit connected in parallel with a first of the switch arrangements and a second capacitor circuit connected in parallel with a second of the switch configurations. The capacitor circuits each comprise a capacitor. The power-electronics switches comprise IGBTs or MOSFETs.
    Type: Application
    Filed: January 24, 2018
    Publication date: November 28, 2019
    Applicant: Siemens Aktiengesellschaft
    Inventors: Thomas Komma, Mirjam Mantel, Monika Poebl
  • Patent number: 10418893
    Abstract: The disclosure relates to electrical converters. The teachings thereof may be embodied in a circuit assembly for an electrical converter. For example, a circuit assembly for an electrical converter may include a set of switching units, each switching unit comprising a semiconductor switch and a gate driver circuit for controlling the semiconductor switch. The respective semiconductor switch and gate driver circuit of each switching unit are arranged on a common carrier circuit board and are electrically connected to one another by a printed conductor on the carrier circuit board.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: September 17, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Manuel Blum, Walter Kiffe, Thomas Komma, Monika Poebl, Michael Finkenzeller
  • Patent number: 10232721
    Abstract: A circuit arrangement for detecting a zero crossing of an alternating current is provided. The circuit arrangement includes a load through which the alternating current can flow, and an evaluation unit connected to the load and configured to evaluate an electrical voltage formed at the load, and to determining zero currents. The load comprises a capacitor through which the alternating current or a current to be measured derived therefrom can flow, and the evaluation unit is configured to account for a phase shift caused by the capacitor for determining the zero currents.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: March 19, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Manuel Blum, Thomas Komma, Mirjam Mantel, Monika Poebl
  • Patent number: 10218257
    Abstract: The present disclosure relates to electric converters. The teachings thereof may be embodied in an electric converter to transfer an electric power of more than 3 kilowatts comprising a half-bridge with at least two parallel circuits. Each of the parallel circuits includes a plurality of semiconductor switches. Each of the parallel circuits includes at least two base circuits arranged next to one another on a common printed circuit board. Each of the respective base circuits includes one of the plurality of semiconductor switches and a gate driver circuit for the semiconductor switch. Each gate driver circuit is electrically connected to a gate of the semiconductor switch by a control line. In each of the parallel circuits, a shortest control line and a longest control line differ from one another with respect to length by no more than the factor of 1.5.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: February 26, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Manuel Blum, Walter Kiffe, Thomas Komma, Monika Poebl
  • Patent number: 10173539
    Abstract: A battery charging system for cablelessly charging a battery includes a primary-side charging unit as a primary side, a secondary-side charging unit as a secondary side, a transformer having a primary-side winding as part of the primary side and a secondary-side winding as part of the secondary side, one controller on the primary side and one controller on the secondary side, one voltage sensor on the primary side and one voltage sensor on the secondary side, one current sensor on the primary side and one current sensor on the secondary side, one communication unit on the primary side and one communication unit on the secondary side, and one direct current converter provided on the primary side only.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: January 8, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Thomas Komma, Stephan Rupf, Jörg Weiss
  • Publication number: 20180166968
    Abstract: The disclosure relates to electrical converters. The teachings thereof may be embodied in a circuit assembly for an electrical converter. For example, a circuit assembly for an electrical converter may include a set of switching units, each switching unit comprising a semiconductor switch and a gate driver circuit for controlling the semiconductor switch. The respective semiconductor switch and gate driver circuit of each switching unit are arranged on a common carrier circuit board and are electrically connected to one another by a printed conductor on the carrier circuit board.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 14, 2018
    Applicant: Siemens Aktiengesellschaft
    Inventors: Manuel Blum, Walter Kiffe, Thomas Komma, Monika Poebl, Michael Finkenzeller
  • Patent number: 9991046
    Abstract: An energy intake apparatus for a motor vehicle can be operated electrically, with an induction coil, which is configured to charge an energy storage unit of the motor vehicle. The energy intake apparatus contains a shield apparatus, by which the induction coil can be shielded from the motor vehicle. The shield apparatus has at least one first shield component separating the induction coil from the motor vehicle in the transverse vehicle direction and/or in the longitudinal vehicle direction and at least one second shield component separating the induction coil from the motor vehicle upward in the vertical vehicle direction. The second shield component being connected to the first shield component.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: June 5, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Manuel Blum, Thomas Komma, Monika Poebl
  • Publication number: 20180152094
    Abstract: The present disclosure relates to electric converters. The teachings thereof may be embodied in an electric converter to transfer an electric power of more than 3 kilowatts comprising a half-bridge with at least two parallel circuits. Each of the parallel circuits includes a plurality of semiconductor switches. Each of the parallel circuits includes at least two base circuits arranged next to one another on a common printed circuit board. Each of the respective base circuits includes one of the plurality of semiconductor switches and a gate driver circuit for the semiconductor switch. Each gate driver circuit is electrically connected to a gate of the semiconductor switch by a control line. In each of the parallel circuits, a shortest control line and a longest control line differ from one another with respect to length by no more than the factor of 1.5.
    Type: Application
    Filed: June 8, 2016
    Publication date: May 31, 2018
    Applicant: Siemens Aktiengesellschaft
    Inventors: Manuel Blum, Walter Kiffe, Thomas Komma, Monika Poebl
  • Patent number: 9855851
    Abstract: An electrically powered vehicle has a drive apparatus which includes an electric machine and an electrical energy storage device connected to the electric machine. A charging device is connected to the electrical energy storage device for the wireless transfer of energy by way of an alternating magnetic field. For that purpose, the charging device has an electronic coil which interacts with the alternating magnetic field. The electronic coil is connected to an adjustable compensating circuit.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: January 2, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Manuel Blum, Thomas Komma, Mirjam Mantel, Monika Poebl
  • Publication number: 20170291495
    Abstract: The present disclosure relates to tuning oscillatory systems. The teachings thereof may be embodied in a device having an adjustable capacitance value for tuning a first oscillatory system, connectable to a second oscillatory system having an unknown and weak coupling factor. The device may include: a first capacitor having a capacitance dependent upon a voltage; and a DC voltage source having a variable voltage applied to associated terminals; a series-connected arrangement of the DC voltage source and a decoupling element connected in parallel with terminals of the capacitor, to apply a variable bias voltage to the first capacitor. The voltage applied to the terminals of the DC voltage source may depend at least in part on a working frequency of the first oscillatory system.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 12, 2017
    Applicant: Siemens Aktiengesellschaft
    Inventors: Manuel Blum, Thomas Komma, Mirjam Mantel, Monika Poebl
  • Publication number: 20160231437
    Abstract: A detector apparatus includes a number of detectors for assigned radiation sources of a computed tomography system, wherein each detector may require a constant input voltage in a range between 900 V and 1200 V. During operation of the detector apparatus, an auxiliary voltage is fed to a high voltage source to supply power to the input terminals on the number of detectors. The high voltage source includes a central first DC-DC converter, to which the auxiliary voltage is fed, and a number of second DC-DC converters arranged downstream of the first DC-DC converter. The first and the second DC-DC converter are based on different power supply topologies, wherein each second DC-DC converter generates the constant input voltage in the predetermined range from a central output voltage provided by the first DC-DC converter and supplies the constant input voltage to a corresponding detector.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Applicant: Siemens Aktiengesellschaft
    Inventors: Shameem Kabir Chaudhury, Karsten Handt, Thomas Hilderscheid, Thomas Komma
  • Publication number: 20160229300
    Abstract: A circuit arrangement for detecting a zero crossing of an alternating current is provided. The circuit arrangement includes a load through which the alternating current can flow, and an evaluation unit connected to the load and configured to evaluate an electrical voltage formed at the load, and to determining zero currents. The load comprises a capacitor through which the alternating current or a current to be measured derived therefrom can flow, and the evaluation unit is configured to account for a phase shift caused by the capacitor for determining the zero currents.
    Type: Application
    Filed: September 15, 2014
    Publication date: August 11, 2016
    Applicant: Siemens Aktiengesellschaft
    Inventors: Manuel Blum, Thomas Komma, Mirjam Mantel, Monika Poebl
  • Patent number: 9412514
    Abstract: An arrangement for the inductive wireless transmission of energy to a receiver coil of an electrically operated vehicle includes a controllable power supply, an electrically conductive first coil of circular shape, and an electrically conductive second coil of circular shape. The first and second coils are connected to the controllable power supply such that a current direction in the second coil is directed opposite to a current direction in the first coil.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: August 9, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Thomas Komma
  • Patent number: 9401651
    Abstract: A transformer sub-circuit for use in an electrically operated vehicle includes a bridge circuit which has at least four MOSFETs and capacitors connected in parallel with the MOSFETs, and an inductor connected to the bridge circuit for use as a primary side of a transformer. A control device or controller for the inverter is configured to cause switching of the MOSFETs in such a way that operation is performed at a frequency that is higher than the resonance frequency.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: July 26, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Thomas Komma
  • Publication number: 20150291042
    Abstract: A battery charging system for cablelessly charging a battery includes a primary-side charging unit as a primary side, a secondary-side charging unit as a secondary side, a transformer having a primary-side winding as part of the primary side and a secondary-side winding as part of the secondary side, one controller on the primary side and one controller on the secondary side, one voltage sensor on the primary side and one voltage sensor on the secondary side, one current sensor on the primary side and one current sensor on the secondary side, one communication unit on the primary side and one communication unit on the secondary side, and one direct current converter provided on the primary side only.
    Type: Application
    Filed: August 31, 2012
    Publication date: October 15, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Thomas Komma, Stephan Rupf, Jörg Weiss
  • Publication number: 20150262750
    Abstract: An energy intake apparatus for a motor vehicle can be operated electrically, with an induction coil, which is configured to charge an energy storage unit of the motor vehicle. The energy intake apparatus contains a shield apparatus, by which the induction coil can be shielded from the motor vehicle. The shield apparatus has at least one first shield component separating the induction coil from the motor vehicle in the transverse vehicle direction and/or in the longitudinal vehicle direction and at least one second shield component separating the induction coil from the motor vehicle upward in the vertical vehicle direction. The second shield component being connected to the first shield component.
    Type: Application
    Filed: March 12, 2015
    Publication date: September 17, 2015
    Inventors: MANUEL BLUM, THOMAS KOMMA, MONIKA POEBL
  • Publication number: 20150170814
    Abstract: A ferrite configuration for guiding a magnetic flux has at least two prismatically configured ferrite segments which form a cross-sectional area, perpendicular to a direction of the magnetic flux to be guided, for the magnetic flux to be guided and which are arranged adjacent to one another in such a manner that two surfaces of the adjacently arranged ferrite segments face one another perpendicular to the direction of the magnetic flux to be guided and form an air gap such that an air gap length is formed within the ferrite configuration in the direction of the magnetic flux. The ferrite segments are arranged in such a manner that the air gap lengths at any location of the cross-sectional area is of equal length across the cross-sectional area of the ferrite configuration.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Inventors: MANUEL BLUM, THOMAS KOMMA, MONIKA POEBL