Patents by Inventor Rolf Wagemann

Rolf Wagemann 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: 11228309
    Abstract: A circuit device and a method for safely disconnecting a semiconductor switching element, in particular a MOSFET, are provided, wherein the semiconductor switching element comprises a gate terminal, a source terminal and a drain terminal, wherein, during operation of the semiconductor switching element, a current path between the drain terminal and the source terminal can be reversibly disconnected by the gate terminal, and the gate terminal comprises a gate voltage potential and the source terminal comprises a source voltage potential. A fuse unit is arranged between the gate terminal and the source terminal, which fuse unit is set up and designed, as a function of a potential difference between the gate voltage potential and the source voltage potential, so as to electrically connect the gate terminal to the source terminal after the current path is disconnected, so that the gate voltage potential and the source voltage potential are adapted.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: January 18, 2022
    Assignees: Leoni Bordnetz-Systeme GmbH, Hella GmbH & Co. KgaA
    Inventors: Sebastian Doernbach, Rolf Wagemann, Markus Plaschke
  • Publication number: 20210143815
    Abstract: A circuit device and a method for safely disconnecting a semiconductor switching element, in particular a MOSFET, are provided, wherein the semiconductor switching element comprises a gate terminal, a source terminal and a drain terminal, wherein, during operation of the semiconductor switching element, a current path between the drain terminal and the source terminal can be reversibly disconnected by the gate terminal, and the gate terminal comprises a gate voltage potential and the source terminal comprises a source voltage potential. A fuse unit is arranged between the gate terminal and the source terminal, which fuse unit is set up and designed, as a function of a potential difference between the gate voltage potential and the source voltage potential, so as to electrically connect the gate terminal to the source terminal after the current path is disconnected, so that the gate voltage potential and the source voltage potential are adapted.
    Type: Application
    Filed: January 19, 2021
    Publication date: May 13, 2021
    Applicants: LEONI Bordnetz-Systeme GmbH, HELLA GmbH & Co. KGaA
    Inventors: Sebastian DOERNBACH, Rolf WAGEMANN, Markus PLASCHKE
  • Publication number: 20080093890
    Abstract: The present invention relates to a component (07, 25, 33), particularly for a vehicle (01), the component (07, 25, 33) being produced from a foamed polymer with formation of a hard foam body (11, 26, 36, 45, 52, 60, 66), and at least one electric and/or electronic functional element (10, 15, 16, 17, 18, 19, 20, 21, 35) being provided on the component (07, 25, 33, 50). A flat conductor set (08, 27, 34, 44, 51, 57, 67, 71) is provided for the electrically conductive contacting of the functional element (10, 15, 16, 17, 18, 19, 20, 21, 28, 35), in which at least two printed conductors (13) are attached jointly on or in an essentially planar and deformable insulator element (12, 30, 37), the flat conductor set (08, 27, 34, 44, 51, 57, 67, 71) being at least partially embedded in foam in the hard foam body (11, 26, 36, 45, 52, 60, 66).
    Type: Application
    Filed: August 12, 2005
    Publication date: April 24, 2008
    Applicant: Intedis GmbH & Co. KG
    Inventors: Walter Mehling, Manfred Kittner, Rolf Wagemann, Carstein Cilensek