Patents by Inventor Gerd Meyhoefer

Gerd Meyhoefer 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: 9282603
    Abstract: The invention relates to a dimmable, multi-channel voltage/current source (47) with several outputs (CH1, CH2) for connecting an electrical load (10, 20), which provides a regulated direct current (I1, I2) at every output (CH1, CH2). The voltage source (47) comprises, for every output (CH1, CH2), a first dimming device (3), with which part of the current (I1?, I2?) flowing to the output (CH1, CH2) can be conducted to a reference potential (GND) and which in each case comprises a switch (17, 27) that is controlled by a first PWM signal, and a second dimming device (4) with a second switch (12, 22) that is arranged in series to the electrical load (10, 20) and which is controlled by a second PWM signal (open1, open2).
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: March 8, 2016
    Assignee: Exscitron GmbH
    Inventors: Stephan Gruber, René Franzky, Winfried Beyer, Gerd Meyhöfer
  • Patent number: 9071133
    Abstract: Switched-mode power supply device having an input for receiving an AC voltage input signal, an output for providing a DC voltage signal and/or a direct-current signal to a downstream consumer, a transformer having a primary winding and a secondary winding, and resonant converter means assigned to the primary side of the transformer, which resonant converter means form an LLC topology with inclusion of the primary winding and can be actuated with a variable-frequency control signal on the primary side by means of a control unit, wherein the control unit, which is realized by means of an integrated and/or programmable circuit component, generates the control signal in reaction to and as a function of a zero-crossing detection signal generated from the AC voltage input signal, a current flowing in the transformer windings, in particular on the secondary side, and a constant and/or predeterminable preset signal for an output current flowing at the output, in such a way that regulating means associated with the co
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: June 30, 2015
    Assignee: exscitron GmbH
    Inventors: Stephan Gruber, Rene Franzky, Winfried Beyer, Gerd Meyhoefer, Daniel Josefus
  • Publication number: 20140375229
    Abstract: Switched-mode power supply device having an input for receiving an AC voltage input signal, an output for providing a DC voltage signal and/or a direct-current signal to a downstream consumer, a transformer having a primary winding and a secondary winding, and resonant converter means assigned to the primary side of the transformer, which resonant converter means form an LLC topology with inclusion of the primary winding and can be actuated with a variable-frequency control signal on the primary side by means of a control unit, wherein the control unit, which is realized by means of an integrated and/or programmable circuit component, generates the control signal in reaction to and as a function of a zero-crossing detection signal generated from the AC voltage input signal, a current flowing in the transformer windings, in particular on the secondary side, and a constant and/or predeterminable preset signal for an output current flowing at the output, in such a way that regulating means associated with the co
    Type: Application
    Filed: June 13, 2014
    Publication date: December 25, 2014
    Inventors: Stephan Gruber, Rene Franzky, Winfried Beyer, Gerd Meyhoefer, Daniel Josefus
  • Publication number: 20140084802
    Abstract: The invention relates to a dimmable, multi-channel voltage/current source (47) with several outputs (CH1, CH2) for connecting an electrical load (10, 20), which provides a regulated direct current (I1, I2) at every output (CH1, CH2). The voltage source (47) comprises, for every output (CH1, CH2), a first dimming device (3), with which part of the current (I1?, I2?) flowing to the output (CH1, CH2) can be conducted to a reference potential (GND) and which in each case comprises a switch (17, 27) that is controlled by a first PWM signal, and a second dimming device (4) with a second switch (12, 22) that is arranged in series to the electrical load (10, 20) and which is controlled by a second PWM signal (open1, open2).
    Type: Application
    Filed: September 24, 2013
    Publication date: March 27, 2014
    Applicant: Exscitron GmbH
    Inventors: Stephan Gruber, René Franzky, Winfried Beyer, Gerd Meyhöfer
  • Patent number: 7376925
    Abstract: A standard cell arrangement can be produced by automatically determining a distance between at least two standard cells in at least one standard cell row. The method also automatically determines whether at least one of the determined distances is less than a predetermined minimum distance. If the distance is less than the minimum distance in at least one case, the width of at least one standard cell in the standard cell row in a virtual layout of standard cells is broadened in a predetermined manner. The broadened standard cell is automatically placed in the virtual layout with other standard cells. The placement of the broadened standard cell in the virtual layout is transferred to the real layout of the standard cells. In this manner, the standard cells are provided with the originally intended width again, in order to create greater distances between the standard cells in the real layout.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: May 20, 2008
    Assignee: Infineon Technologies AG
    Inventors: Gerd Meyhoefer, Sven Piatkowski
  • Publication number: 20060059448
    Abstract: A standard cell arrangement can be produced by automatically determining a distance between at least two standard cells in at least one standard cell row. The method also automatically determines whether at least one of the determined distances is less than a predetermined minimum distance. If the distance is less than the minimum distance in at least one case, the width of at least one standard cell in the standard cell row in a virtual layout of standard cells is broadened in a predetermined manner. The broadened standard cell is automatically placed in the virtual layout with other standard cells. The placement of the broadened standard cell in the virtual layout is transferred to the real layout of the standard cells. In this manner, the standard cells are provided with the originally intended width again, in order to create greater distances between the standard cells in the real layout.
    Type: Application
    Filed: July 29, 2005
    Publication date: March 16, 2006
    Inventors: Gerd Meyhoefer, Sven Piatkowski