Patents by Inventor Marcus Schaemann

Marcus Schaemann 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).

  • Standby power for LED drivers
    Patent number: 9313851
    Abstract: Methods, devices, and circuits are disclosed for regulating a first parameter of one or more LEDs. The methods, devices, and circuits further disclose switching, in response to an indication of a dimmer interface, from regulating the first parameter of the one or more LEDs to regulating a second parameter below a light generation threshold of the one or more LEDs, wherein switching from regulating the first parameter to regulating the second parameter causes the one or more LEDs to enter a non-light generation mode.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: April 12, 2016
    Assignee: Infineon Technologies AG
    Inventors: Ali Fawaz, Robert Pizzuti, Marcus Schaemann
  • STANDBY POWER FOR LED DRIVERS
    Publication number: 20150334800
    Abstract: Methods, devices, and circuits are disclosed regulating a first parameter of one or more LEDs. The methods, devices, and circuits may further be disclosed switching, in response to an indication of a dimmer interface, from regulating the first parameter of the one or more LEDs to regulating a second parameter below a light generation threshold of the one or more LEDs, and switching from regulating the first parameter to regulating the second parameter causes the one or more LEDs to enter a non-light generation mode.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 19, 2015
    Applicants: INFINEON TECHNOLOGIES NORTH AMERICA CORP., Infineon Technologies AG
    Inventors: Ali Fawaz, Robert Pizzuti, Marcus Schaemann
  • ENHANCED POWER FACTOR CORRECTION
    Publication number: 20150311803
    Abstract: A power converter is described that includes a switch. The power converter may also include a controller that controls the switch. The controller may be configured to ascertain a first parameter. Additionally, the controller may be configured to ascertain a second parameter. The controller may dynamically modulate duty cycle of the switch based on the first parameter and the second parameter in addition and independent of the control loop.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 29, 2015
    Applicant: Infineon Technologies Austria AG
    Inventors: Marcus Schaemann, Torsten Hinz
  • VALLEY TO VALLEY SWITCHING IN QUASI-RESONANT MODE FOR DRIVER
    Publication number: 20150244272
    Abstract: Techniques are described to adjust the time when a switch is turned on from the time of one voltage valley to the time of another voltage valley for controlling an average load current or average load voltage. In some examples, the adjustment is instantaneous, and in some examples, the adjustment is gradual. Both of these example techniques provide for high switching efficiency of the switch.
    Type: Application
    Filed: December 12, 2014
    Publication date: August 27, 2015
    Inventors: Marcus Schaemann, Josef Neulinger, Martin Krueger, Torsten Hinz
  • VALLEY TO VALLEY SWITCHING IN QUASI-RESONANT MODE FOR DRIVER
    Publication number: 20150244273
    Abstract: Techniques are described to adjust the time when a switch is turned on from the time of one voltage valley to the time of another voltage valley for controlling an average load current or average load voltage. In some examples, the adjustment is instantaneous, and in some examples, the adjustment is gradual. Both of these example techniques provide for high switching efficiency of the switch.
    Type: Application
    Filed: December 12, 2014
    Publication date: August 27, 2015
    Inventors: Marcus Schaemann, Jens Barrenscheen, Martin Krueger, Marc Fahlenkamp