Patents by Inventor Lilla Akrour

Lilla Akrour 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).

  • Driver circuit for driving semiconductor switches
    Patent number: 8710872
    Abstract: A driver circuit can be used to drive a semiconductor switch to an on-state or an off-state in accordance with a control signal. The operating voltage range of the control signal is represented by a reference voltage. And input stage receives the control signal and the reference voltage and generates a modified control signal. An output stage is coupled to the input stage and receives the modified control signal. The output stage is configured to provide a driver signal for driving the semiconductor switch on and off in accordance with the modified control signal. The input stage is configured to scale the control signal dependent on the level of the reference voltage, to compare the scaled control signal with at least one threshold value that is responsive to the reference voltage, and to generate the modified control signal dependent on the result of the comparison.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: April 29, 2014
    Assignee: Infineon Technologies Austria AG
    Inventors: Ralph Danklefsen, Jens Barrenscheen, Lilla Akrour
  • Driver Circuit for driving Semiconductor Switches
    Publication number: 20130307589
    Abstract: A driver circuit can be used to drive a semiconductor switch to an on-state or an off-state in accordance with a control signal. The operating voltage range of the control signal is represented by a reference voltage. And input stage receives the control signal and the reference voltage and generates a modified control signal. An output stage is coupled to the input stage and receives the modified control signal. The output stage is configured to provide a driver signal for driving the semiconductor switch on and off in accordance with the modified control signal. The input stage is configured to scale the control signal dependent on the level of the reference voltage, to compare the scaled control signal with at least one threshold value that is responsive to the reference voltage, and to generate the modified control signal dependent on the result of the comparison.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 21, 2013
    Applicant: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Ralph Danklefsen, Jens Barrenscheen, Lilla Akrour