Patents by Inventor Thomas Nedwal

Thomas Nedwal 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).

  • PSRR control loop with configurable voltage feed forward compensation
    Patent number: 9736893
    Abstract: The present document relates to the compensation of voltage variations within power converters. A driver circuit for a solid state light source is described. The driver circuit comprises a switched-mode power converter comprising a switch; wherein the switched-mode power converter is configured to convert an input voltage at an input of the switched-mode power converter into an output voltage at an output of the switched-mode power converter. Furthermore, the driver circuit comprises current sensing means configured to determine a sensed current signal indicative of a current through the switch; and voltage sensing means configured to determine a sensed voltage signal indicative of the input voltage. In addition, the driver circuit comprises a control unit configured to determine a gate control signal for putting the switch into an off-state, based on the sensed current signal and based on the sensed voltage signal.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: August 15, 2017
    Assignee: Dialog Semiconductor GmbH
    Inventors: Horst Knoedgen, Thomas Nedwal
  • PSRR Control Loop with Configurable Voltage Feed Forward Compensation
    Publication number: 20150296574
    Abstract: The present document relates to the compensation of voltage variations within power converters. A driver circuit for a solid state light source is described. The driver circuit comprises a switched-mode power converter comprising a switch; wherein the switched-mode power converter is configured to convert an input voltage at an input of the switched-mode power converter into an output voltage at an output of the switched-mode power converter. Furthermore, the driver circuit comprises current sensing means configured to determine a sensed current signal indicative of a current through the switch; and voltage sensing means configured to determine a sensed voltage signal indicative of the input voltage. In addition, the driver circuit comprises a control unit configured to determine a gate control signal for putting the switch into an off-state, based on the sensed current signal and based on the sensed voltage signal.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 15, 2015
    Inventors: Horst Knoedgen, Thomas Nedwal