Patents by Inventor Andreas Leyk

Andreas Leyk 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).

  • Publication number: 20100045253
    Abstract: A DC voltage converter is provided that cyclically converts an input-side supply voltage into an output voltage. The converter includes an inductive storage element connected between a terminal for the supply voltage and, in a manner such that it is coupled via a first switch, a reference potential terminal. The capacitively buffered output voltage terminal is connected, via a second switch, between the inductive storage element and the first switch. Provision is furthermore made of a third switch, which is intended to selectively short the inductive storage element that is connected in parallel and is controlled by a control circuit. The control circuit is controlled, on the input side, by a control voltage that is tapped off at the second terminal of the inductive storage element.
    Type: Application
    Filed: October 29, 2009
    Publication date: February 25, 2010
    Inventors: Andreas Leyk, Christian Kranz
  • Patent number: 7633275
    Abstract: A DC voltage converter is provided that cyclically converts an input-side supply voltage into an output voltage. The converter includes an inductive storage element connected between a terminal for the supply voltage and, in a manner such that it is coupled via a first switch, a reference potential terminal. The capacitively buffered output voltage terminal is connected, via a second switch, between the inductive storage element and the first switch. Provision is furthermore made of a third switch, which is intended to selectively short the inductive storage element that is connected in parallel and is controlled by a control circuit. The control circuit is controlled, on the input side, by a control voltage that is tapped off at the second terminal of the inductive storage element.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 15, 2009
    Assignee: Infineon Technologies AG
    Inventors: Andreas Leyk, Christian Kranz
  • Patent number: 7598893
    Abstract: A digital-to-analog converter has a reference value source, a reference value divider arrangement with a tap, a first switch arrangement which is designed to produce an electrical connection between the tap and a first output of the digital-to-analog converter, and a second switch arrangement which is designed to produce an electrical connection between the tap and a second output of the digital-to-analog converter.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: October 6, 2009
    Assignee: Infineon Technologies AG
    Inventors: Bertram Gunzelmann, Victor Dias, Andreas Leyk, Volker Christ
  • Publication number: 20070200743
    Abstract: A digital-to-analog converter has a reference value source, a reference value divider arrangement with a tap, a first switch arrangement which is designed to produce an electrical connection between the tap and a first output of the digital-to-analog converter, and a second switch arrangement which is designed to produce an electrical connection between the tap and a second output of the digital-to-analog converter.
    Type: Application
    Filed: February 16, 2007
    Publication date: August 30, 2007
    Inventors: Bertram Gunzelmann, Victor Dias, Andreas Leyk, Volker Christ
  • Patent number: 7253592
    Abstract: A DC voltage converter having a plurality of outputs and a method for converting a DC voltage into a plurality of output-side DC voltages is disclosed. A control unit is used to drive a first and a second switch to drive an energy store in such a manner that a plurality of different output voltages are provided. The switches include field effect transistors, and at least the substrate terminal of one of these field effect transistors is connected to the control unit in order to be driven using a substrate potential in a manner dependent on an operating mode of the DC voltage converter. This makes it possible to provide different voltages both in an intermittent and in a continuous operating mode of the converter with, at the same time, a high degree of efficiency.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: August 7, 2007
    Assignee: Infineon Technologies AG
    Inventors: Andreas Leyk, Christian Kranz
  • Publication number: 20060017490
    Abstract: A DC voltage converter is provided that cyclically converts an input-side supply voltage into an output voltage. The converter includes an inductive storage element connected between a terminal for the supply voltage and, in a manner such that it is coupled via a first switch, a reference potential terminal. The capacitively buffered output voltage terminal is connected, via a second switch, between the inductive storage element and the first switch. Provision is furthermore made of a third switch, which is intended to selectively short the inductive storage element that is connected in parallel and is controlled by a control circuit. The control circuit is controlled, on the input side, by a control voltage that is tapped off at the second terminal of the inductive storage element.
    Type: Application
    Filed: June 28, 2005
    Publication date: January 26, 2006
    Inventors: Andreas Leyk, Christian Kranz
  • Publication number: 20060007618
    Abstract: A DC voltage converter having a plurality of outputs and a method for converting a DC voltage into a plurality of output-side DC voltages is disclosed. A control unit is used to drive a first and a second switch to drive an energy store in such a manner that a plurality of different output voltages are provided. The switches include field effect transistors, and at least the substrate terminal of one of these field effect transistors is connected to the control unit in order to be driven using a substrate potential in a manner dependent on an operating mode of the DC voltage converter. This makes it possible to provide different voltages both in an intermittent and in a continuous operating mode of the converter with, at the same time, a high degree of efficiency.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 12, 2006
    Inventors: Andreas Leyk, Christian Kranz