Patents by Inventor Uwe Krella

Uwe Krella 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: 9660476
    Abstract: A circuit assembly for discharging an electrical energy store includes a first discharge current path for uncontrolled, passive discharging of the energy store and for keeping a defined charge voltage of the energy store, and a second discharge current path for controlled, active discharging of the energy store. A semiconductor switch electrically connects to a positive current connection of the energy store and to a negative current connection of the energy store. A voltage limiter includes a first current connection for electrically connecting to the positive current connection of the energy store and a second current connection for electrically connecting to the negative current connection of the energy store. The circuit assembly further includes a first control path for providing a first control signal from the first current connection of the voltage limiter to the control connection of the semiconductor switch in order to control the semiconductor switch.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: May 23, 2017
    Assignee: CONTI TEMIC MICROELECTRONIC GMBH
    Inventors: Stefan Flock, Uwe Krella, Olga Siwak
  • Publication number: 20150357857
    Abstract: A circuit assembly for discharging an electrical energy store includes a first discharge current path for uncontrolled, passive discharging of the energy store and for keeping a defined charge voltage of the energy store, and a second discharge current path for controlled, active discharging of the energy store. A semiconductor switch electrically connects to a positive current connection of the energy store and to a negative current connection of the energy store. A voltage limiter includes a first current connection for electrically connecting to the positive current connection of the energy store and a second current connection for electrically connecting to the negative current connection of the energy store. The circuit assembly further includes a first control path for providing a first control signal from the first current connection of the voltage limiter to the control connection of the semiconductor switch in order to control the semiconductor switch.
    Type: Application
    Filed: October 10, 2013
    Publication date: December 10, 2015
    Applicant: CONTI TEMIC MICROELECTRONIC GMBH
    Inventors: Stefan Flock, Uwe Krella, Olga Siwak
  • Patent number: 8847590
    Abstract: A surface-mountable magnetic field sensor (1) with a semiconductor chip (4), a magnetic field measuring device (30), and in a method for producing and populating a circuit board (24) having a magnetic field sensor (1), the magnetic field sensor (1) has a semiconductor chip (4), which is arranged on a flat-conductor substrate (5). At least three flat-conductor electrodes (6 to 9), which protrude out of a plastic housing side (10), are electrically connected to the semiconductor chip (4). The flat-conductor substrate (5) and the semiconductor chip (4) are embedded in a plastic housing (11). The plastic housing (11) can be inserted with the embedded semiconductor chip (4) into a magnetic field gap (12), with the flat-conductor electrodes (6 to 9) protruding, wherein the flat-conductor electrodes (6 to 9) have bends (13 to 16) at a distance from the plastic housing side (10), the bends being surface-mountable on a circuit board.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: September 30, 2014
    Assignee: Conti Temic Microelectronic GmbH
    Inventors: Stefan Flock, Uwe Krella, Jürgen Steger
  • Patent number: 8587298
    Abstract: A current measuring device in a power electronics system includes at least one circuit board and an electrical conductor which is guided through a frame surrounding the circuit board. The current measuring device includes a soft magnetic core surrounding the insulation of the electrical conductor, which core is arranged in the frame. The soft magnetic core is open at one location. A magnetically sensitive sensor, in particular a Hall sensor, is arranged in the recess of the soft magnetic core surrounding the insulation of the electrical conductor in order to detect the magnetic field strength.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: November 19, 2013
    Assignee: Conti Temic microelectronic GmbH
    Inventors: Uwe Krella, Katrin Matthes, Gerhard Hiemer
  • Publication number: 20120001627
    Abstract: A surface-mountable magnetic field sensor (1) with a semiconductor chip (4), a magnetic field measuring device (30), and in a method for producing and populating a circuit board (24) having a magnetic field sensor (1), the magnetic field sensor (1) has a semiconductor chip (4), which is arranged on a flat-conductor substrate (5). At least three flat-conductor electrodes (6 to 9), which protrude out of a plastic housing side (10), are electrically connected to the semiconductor chip (4). The flat-conductor substrate (5) and the semiconductor chip (4) are embedded in a plastic housing (11). The plastic housing (11) can be inserted with the embedded semiconductor chip (4) into a magnetic field gap (12), with the flat-conductor electrodes (6 to 9) protruding, wherein the flat-conductor electrodes (6 to 9) have bends (13 to 16) at a distance from the plastic housing side (10), the bends being surface-mountable on a circuit board.
    Type: Application
    Filed: March 5, 2010
    Publication date: January 5, 2012
    Applicant: Conti Temic Microeletronic GMBH
    Inventors: Stefan Flock, Uwe Krella, Jürgen Steger
  • Publication number: 20110241581
    Abstract: A vehicle has a power supply device (1) for an electric motor (7) and a method provides for supplying power to the electric motor (7). Another method produces an intermediate storage device (9) for the vehicle power supply device (1). The vehicle additionally has a vehicle battery (8), the intermediate storage device (9), and a converter (10) for supplying power to the electric motor (7). The intermediate storage device (9) is arranged between the vehicle battery (8) and the converter (10). The intermediate storage device (9) has an intermediate storage module (11) having an integrated discharge device (12), wherein the discharge device (12) converts the stored electric energy into heat energy upon discharging the intermediate storage device (9).
    Type: Application
    Filed: November 25, 2009
    Publication date: October 6, 2011
    Inventors: Stefan Flock, Gerhard Hiemer, Uwe Krella
  • Publication number: 20110050219
    Abstract: A current measuring device in a power electronics system includes at least one circuit board and an electrical conductor which is guided through a frame surrounding the circuit board. The current measuring device includes a soft magnetic core surrounding the insulation of the electrical conductor, which core is arranged in the frame. The soft magnetic core is open at one location. A magnetically sensitive sensor, in particular a Hall sensor, is arranged in the recess of the soft magnetic core surrounding the insulation of the electrical conductor in order to detect the magnetic field strength.
    Type: Application
    Filed: February 27, 2009
    Publication date: March 3, 2011
    Applicant: CONTI TEMIC MICROELECTRONIC GMBH
    Inventors: Uwe Krella, Katrin Matthes, Gerhard Hiemer