Patents by Inventor Christian Djelassi-Tscheck

Christian Djelassi-Tscheck 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: 10868418
    Abstract: In accordance with one example, the electronic switch has a load current path operably coupled to a load via a wire; the electronic switch is configured to connect or disconnect a load current supply node and the load via the wire dependent on a drive signal. Further, the electronic fuse circuit includes a monitoring circuit configured to receive a current sense signal representing the load current passing through the wire and to determine a first protection signal based on the current sense signal and at least one wire parameter. The first protection signal is indicative of whether to disconnect the load current supply node from the load. Moreover, the electronic fuse circuit includes a logic circuit configured to receive at least one selection signal and to set the at least one wire parameter based on the at least one selection signal.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: December 15, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Christian Djelassi-Tscheck, Robert Illing, Cosimo Lamacchia, Mario Tripolt
  • Patent number: 10707856
    Abstract: A circuit comprises a first metal-oxide semiconductor, MOS, power transistor having a first gate terminal, a first drain terminal, and a first source terminal, a second MOS power transistor having a second gate terminal, a second drain terminal, and a second source terminal, and a switch connected in-between the first gate terminal and the second gate terminal and configured to selectively couple the first gate terminal and the second gate terminal.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: July 7, 2020
    Assignee: Infineon Technologies AG
    Inventors: Florian Brugger, Christian Djelassi-Tscheck, Alexander Mayer
  • Patent number: 10580762
    Abstract: Examples disclosed herein involve integrated circuit chip arrangements. An example integrated circuit (IC) package may include a first semiconductor chip that includes a first metal-oxide-semiconductor field-effect transistor (MOSFET) and a second semiconductor chip mounted within a housing of the IC package. The second semiconductor chip may include a second MOSFET and a control circuit configured with a first driver for the first MOSFET and a second driver for the second MOSFET. The first semiconductor chip may be mounted to the second semiconductor chip opposite a base of the IC package.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 3, 2020
    Assignee: Infineon Technologies AG
    Inventors: Christian Djelassi-Tscheck, Bernhard Auer, Markus Ladurner
  • Patent number: 10440786
    Abstract: Devices and techniques for individual control of multiple light emitting diodes (LEDs) in a LED array. A LED array may include multiple strands of LEDs with each strand including a single LED or multiple LEDs. The techniques of this disclosure include a parallel approach to controlling a LED array with a current measurement circuit in each LED strand. The current measurement circuits may be selectable by a controller via a multiplexer (MUX). The arrangement of circuit elements provides for an improved initialization phase and operating phase and may achieve an accurate and substantially equal current at all LEDs. The current control may ensure a homogenous light output that accounts for process and production variability, as well as changes in operating conditions. A LED control circuit of this disclosure may also include system safety features including temperatures sensing, and over voltage and over current sensing and protection.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: October 8, 2019
    Assignee: Infineon Technologies AG
    Inventors: Stefan Stoegner, Christian Djelassi-Tscheck, Tobias Giersch
  • Publication number: 20190267983
    Abstract: In accordance with an embodiment, a method includes operating a transistor device by a drive circuit in one of a first operating mode and a second operating mode based on an operating mode signal received by the drive circuit. Operating the transistor device in each of the first operating mode and the second operating mode includes switching on the transistor device based on a drive signal received by the drive circuit; monitoring at least one operating parameter of the transistor device; and switching off the transistor device independent of the drive signal when the at least one operating parameter reaches a respective predefined off-threshold. Switching on the transistor device in the second operating mode includes switching on the transistor with a second slew rate that is smaller than a first slew rate in the first operating mode.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 29, 2019
    Inventors: Robert Illing, Christian Djelassi-Tscheck
  • Publication number: 20190199342
    Abstract: A method includes monitoring a load path voltage and an operating parameter of the transistor device; operating the transistor device in a normal mode when the operating parameter is below a threshold associated with the operating parameter, where operating the transistor device in the normal mode includes operating the transistor device in one of an on-state or an off-state based on a drive signal; and operating the transistor device in a fault mode upon detecting a fault based on comparing the operating parameter with the threshold. Operating the transistor device in the fault mode includes switching off the transistor device, operating the transistor device in the on-state includes adjusting the threshold in accordance with a first characteristic curve dependent on the load path voltage, and operating the transistor device in the off-state includes adjusting the threshold according to a second characteristic curve different from the first characteristic curve.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Inventors: Robert Illing, Christian Djelassi-Tscheck, Alexander Mayer
  • Publication number: 20180287365
    Abstract: In accordance with one example, the electronic switch has a load current path operably coupled to a load via a wire; the electronic switch is configured to connect or disconnect a load current supply node and the load via the wire dependent on a drive signal. Further, the electronic fuse circuit includes a monitoring circuit configured to receive a current sense signal representing the load current passing through the wire and to determine a first protection signal based on the current sense signal and at least one wire parameter. The first protection signal is indicative of whether to disconnect the load current supply node from the load. Moreover, the electronic fuse circuit includes a logic circuit configured to receive at least one selection signal and to set the at least one wire parameter based on the at least one selection signal.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Applicant: Infineon Technologies AG
    Inventors: Christian Djelassi-Tscheck, Robert Illing, Cosimo Lamacchia, Mario Tripolt