Patents by Inventor Sven Kolberg

Sven Kolberg 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).

  • Method for driving a switch that controls current drawn in a power factor correction circuit and a drive circuit therefor
    Patent number: 7397678
    Abstract: The invention relates to a method for provision of a drive signal for a switch which controls the current drawn by an inductive energy storage element in a power factor correction circuit, in which a control signal which controls the power consumption is available. One drive cycle of the switch comprises: detection of a predetermined storage state of the inductive energy storage element; when the predetermined storage state of the storage element is detected, production of a switching-on level for the drive signal for a regular switched-on duration which is dependent on the control signal or for a maximum switched-on duration which is dependent on an input voltage, when the regular switched-on duration is greater than the maximum switched-on duration; and production of a switching-off level for the drive signal for a switched-off duration until the next detection of the predetermined storage state.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: July 8, 2008
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Frank, Michael Herfurth, Sven Kolberg
  • Method for driving a switch in a step-up converter and a drive circuit
    Publication number: 20060013026
    Abstract: The invention relates to a method for provision of a drive signal for a switch which controls the current drawn by an inductive energy storage element in a power factor correction circuit in which a control signal which controls the power consumption is available. One drive cycle of the switch comprises: detection of a predetermined storage state of the inductive energy storage element; when the predetermined storage state of the storage element is detected, production of a switching-on level for the drive signal for a regular switched-on duration which is dependent on the control signal or for a maximum switched-on duration which is dependent on an input voltage, when the regular switched-on duration is greater than the maximum switched-on and production of a switching-off level for the drive signal for a switched-off duration until the next detection of the predetermined storage state.
    Type: Application
    Filed: July 8, 2005
    Publication date: January 19, 2006
    Applicant: Infineon Technologies AG
    Inventors: Wolfgang Frank, Michael Herfurth, Sven Kolberg