Patents by Inventor Stefan Hain

Stefan Hain 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: 10254327
    Abstract: Devices and methods are provided, which detect a short circuit condition related to a semiconductor switch. A short circuit condition may be determined when a control signal of the switch exceeds a first reference, and a change of load current of the switch exceeds a second reference.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: April 9, 2019
    Assignee: Infineon Technologies AG
    Inventors: Anton Mauder, Stefan Hain, Mark-Matthias Bakran
  • Publication number: 20170248645
    Abstract: Devices and methods are provided, which detect a short circuit condition related to a semiconductor switch. A short circuit condition may be determined when a control signal of the switch exceeds a first reference, and a change of load current of the switch exceeds a second reference.
    Type: Application
    Filed: February 29, 2016
    Publication date: August 31, 2017
    Inventors: Anton Mauder, Stefan Hain, Mark-Matthias Bakran
  • Publication number: 20170248646
    Abstract: Devices and methods are provided, which detect a short circuit condition related to a semiconductor switch. A short circuit condition may be determined when a control signal of the switch exceeds a first reference, and a change of load current of the switch exceeds a second reference.
    Type: Application
    Filed: March 2, 2016
    Publication date: August 31, 2017
    Inventors: Anton Mauder, Stefan Hain, Mark-Matthias Bakran
  • Patent number: 8196473
    Abstract: In a device and method for non-destructive materials testing with at least one ultrasonic transducer, the transducer is able to be moved by a movement system in at least one direction to a workpiece surface. The emission of ultrasonic by the ultrasonic transducer is able to be synchronized with the activation of the movement system so that electrical interference caused by the movement system occurs at times at which no echo is expected for ultrasonic emitted by the transducer. The method and device can be applied to non-destructive materials testing with ultrasound.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 12, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Hain, Hubert Mooshofer
  • Patent number: 8171771
    Abstract: Calibration for a nondestructive ultrasonic material testing system is provided, the system having a multiplicity of ultrasound transducers which are linearly movable as a whole but are arranged fixed with respect to one another, for example mounted fixed in a single sensor holder. In order to achieve optimal alignment of the sensors with a specimen, the mechanical tolerance-induced offset between the beam direction of the ultrasound transducers and the ideal beam directions is found, for example with the aid of a mean straight line. It is then minimized by using the available degrees of freedom of the sensor holder, for example possible tilting of the sensor holder.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: May 8, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Hain, Hubert Mooshofer, Fabricio de Carvalho Ferreira
  • Patent number: 8127591
    Abstract: Calibration for an ultrasonic nondestructive materials testing system is specified, the system having an array of ultrasonic transducers which can be linearly moved and pivoted. In order to compensate for the offset between the beam direction of the ultrasonic transducers and the rotation point of the pivoting system or another desired point of the transducers, this offset is determined using a calibrating body which is, for example, spherical.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 6, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Hain, Hubert Mooshofer, Fabricio De Carvalho Ferreira
  • Publication number: 20090320602
    Abstract: In a device and method for non-destructive materials testing with at least one ultrasonic transducer, the transducer is able to be moved by a movement system in at least one direction to a workpiece surface. The emission of ultrasonic by the ultrasonic transducer is able to be synchronized with the activation of the movement system so that electrical interference caused by the movement system occurs at times at which no echo is expected for ultrasonic emitted by the transducer. The method and device can be applied to non-destructive materials testing with ultrasound.
    Type: Application
    Filed: March 19, 2009
    Publication date: December 31, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Stefan Hain, Hubert Mooshofer
  • Publication number: 20090288471
    Abstract: Calibration for an ultrasonic nondestructive materials testing system is specified, the system having an array of ultrasonic transducers which can be linearly moved and pivoted. In order to compensate for the offset between the beam direction of the ultrasonic transducers and the rotation point of the pivoting system or another desired point of the transducers, this offset is determined using a calibrating body which is, for example, spherical.
    Type: Application
    Filed: March 19, 2009
    Publication date: November 26, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Stefan Hain, Hubert Mooshofer, Fabricio de Carvalho Ferreira
  • Publication number: 20090282924
    Abstract: A transducer arrangement for a nondestructive ultrasonic material testing system has a multiplicity of ultrasound transducers which can be moved linearly or swiveled along a trajectory curve. A multiplicity of ultrasound transducers can be aligned with a point of a specimen. If the size and the focal length of the transducers prohibit an annular or similar arrangement, the transducers are divided into smaller groups. They are then arranged so that every transducer passes over each desired focal point on the specimen during movement of the transducers along the trajectory curve.
    Type: Application
    Filed: March 19, 2009
    Publication date: November 19, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Jürgen Götz, Stefan Hain, Hubert Mooshofer, Jochen Ostermaier, Fabricio De Carvalho Ferreira
  • Publication number: 20090282895
    Abstract: Calibration for a nondestructive ultrasonic material testing system is provided, the system having a multiplicity of ultrasound transducers which are linearly movable as a whole but are arranged fixed with respect to one another, for example mounted fixed in a single sensor holder. In order to achieve optimal alignment of the sensors with a specimen, the mechanical tolerance-induced offset between the beam direction of the ultrasound transducers and the ideal beam directions is found, for example with the aid of a mean straight line. It is then minimized by using the available degrees of freedom of the sensor holder, for example possible tilting of the sensor holder.
    Type: Application
    Filed: March 19, 2009
    Publication date: November 19, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Stefan Hain, Hubert Mooshofer, Fabricio de Carvalho Ferreira
  • Publication number: 20090257660
    Abstract: A method for inspecting component surfaces by a scanning test system, with the activation of the test system taking place such that, based on a known region of the component surface, an estimation of the component shape is performed, the estimation at the edge of the known region is drawn up at least for one part of the edge, this estimation is used for the calculation of the path for the scanning system, the inspection during scanning is implemented along this path and the deviation from the true component shape is measured so that the exact shape of the component is known along this path.
    Type: Application
    Filed: March 19, 2009
    Publication date: October 15, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Stefan Hain, Hubert Mooshofer, Fabricio de Carvalho Ferreira
  • Publication number: 20090168300
    Abstract: A high-voltage capacitor is used to transmit energy and has an insulator housing, wherein at least two serially connected capacitors, which are mounted in parallel, are arranged. Said capacitors are made of, respectively, a serial connection of individual capacitors which are embodied as stackable capacitor elements. The resulting high-voltage capacitor is compact and economical. Each capacitor element comprises several individual capacitors which are maintained in an isolated manner, whereby the number corresponds to the number of serially connected capacitors, such that said serially connected capacitors are formed by one stack of capacitor elements.
    Type: Application
    Filed: August 9, 2005
    Publication date: July 2, 2009
    Inventors: Siegfried Birkle, Stefan Hain, Norbert Koch, Guenter Trojan
  • Publication number: 20070290675
    Abstract: An electric measuring device is supplied with electric energy at a high-voltage potential by a circuit that includes at least one first transformer on the ground potential side. The first transformer has a primary side, to which a generator is attached to generate a feed signal that supplies energy, and a symmetrically sub-divided secondary side with a division point connected to the ground potential. The circuit also has at least one second transformer on the high-voltage potential side with a symmetrically sub-divided primary side, whose division point is connected to the high-voltage potential and a secondary side, to which the measuring device can be connected for the energy supply. In addition, at least one symmetrically configured transmission element attenuates the potential and is equipped with two parallel sub-branches running between the secondary side of the first transformer and the primary side of the second transformer.
    Type: Application
    Filed: August 12, 2005
    Publication date: December 20, 2007
    Inventors: Siegfried Birkle, Stefan Hain
  • Patent number: 7026728
    Abstract: The system is intended to provide an isolated power supply for an electrical load. It contains a generator for producing a supply signal, and a transmission path having two separate branch elements. The first branch element is designed for transmission of the supply signal (S1) in the forward direction, and the second branch element is designed for transmission of the supply signal in the backward direction, so that this results in a closed circuit for the supply signal. The two branch elements contain means for isolation. The load can be supplied by the supply signal with an electrical power of at most 100 mW.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: April 11, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Siegfried Birkle, Stefan Hain
  • Publication number: 20040160217
    Abstract: Arrangement for supplying electrical power to a load by means of a transmission path which has been split into two parts
    Type: Application
    Filed: March 15, 2004
    Publication date: August 19, 2004
    Inventors: Siegfried Birkle, Stefan Hain
  • Patent number: 6297625
    Abstract: According to the present invention, in a method, two polarized light signals are sent in opposite directions through a sensor exhibiting the Faraday effect. To minimize the influence of light portions that are reflected on light paths, one light signal is transmitted on one wavelength, and the other is transmitted on another wavelength. The present invention is applicable in particularly vibration-compensated magneto-optical current converters for purposes of avoiding the influence of back-reflections on the measuring signal.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: October 2, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Bosselmann, Stefan Hain, Michael Willsch
  • Patent number: 6284082
    Abstract: A method of manufacturing a wound insulator pipe, in particular for a high voltage insulator, having one or more ducts for conductors of any kind is provided. A laminate structure is achieved by winding a material onto a spindle and impregnating with a resin. Initially first layers of the material to be wound are applied; then at least one groove is made in the surface obtained and then the winding is completed until the final diameter is attained.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: September 4, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Schuler, Dieter Lorenz, Walter Gross, Stefan Hain, Hans-Henning Lessmann-Mieske, Hans Schmuck, Karl Stenzel
  • Patent number: 6208129
    Abstract: Polarized measuring light propagates through a sensor device and is then split into two differently linearly polarized partial light signals. An intensity-normalized measuring signal is derived from the two partial light signals and their direct components.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: March 27, 2001
    Assignee: Siemens AG
    Inventors: Michael Willsch, Thomas Bosselmann, Peter Menke, Stefan Hain
  • Patent number: 6203647
    Abstract: A method for producing a wound insulating conduit, in particular for a high-voltage insulator, with at least one empty channel for subsequent insertion of a conductor, e.g., an optical fiber. First layers of a material to be wound are applied first, then a molded body provided with at least one empty conduit is applied to a resulting surface and wrapped by additional layers. The molded body has lateral projections which extend over an entire length of the empty conduit and are designed so that they correspond to the surface to which it is secured.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: March 20, 2001
    Assignees: Siemens Aktiengesellschaft, Maschinenfabrik Reinhausen GmbH
    Inventors: Klaus Schuler, Dieter Lorenz, Walter Gross, Stefan Hain, Hans-Henning Lessmann-Mieske, Hans Schmuck, Karl Stenzel
  • Patent number: 6154022
    Abstract: In mutually opposite directions, two light signals traverse an optical series circuit including a first multi-mode fiber, a first polarizer, a Faraday sensor device, a second polarizer and a second multi-mode fiber. An intensity-normalized measuring signal is derived with the aid of direct signal components from light intensities of the two light signals after traversal of the series circuit.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: November 28, 2000
    Assignee: Siemens AG
    Inventors: Michael Willsch, Thomas Bosselmann, Stefan Hain