Patents by Inventor Ioannis Pachnis

Ioannis Pachnis 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: 10879885
    Abstract: An integrated circuit includes a transistor having a control electrode and a load current path to activate and to deactivate a load current path between a first terminal and a second terminal. A diode is in parallel with the load current path of the transistor. The integrated circuit includes a detector circuit to generate a control signal depending on a voltage between the first terminal and the second terminal. The integrated circuit includes a driver circuit having a main branch and a first feedforward branch. The main branch includes circuit components to generate a control voltage for the control electrode of the transistor in accordance with the control signal, and the feedforward branch comprises circuit components to generate a charging current or, alternatively, a discharging current as a reaction to a slope of the control signal, the current charging or discharging, respectively, the control electrode of the transistor.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: December 29, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Michael Lenz, Damiano Gadler, Ioannis Pachnis, Albino Pidutti
  • Publication number: 20200274528
    Abstract: An integrated circuit includes a transistor having a control electrode and a load current path to activate and to deactivate a load current path between a first terminal and a second terminal. A diode is in parallel with the load current path of the transistor. The integrated circuit includes a detector circuit to generate a control signal depending on a voltage between the first terminal and the second terminal. The integrated circuit includes a driver circuit having a main branch and a first feedforward branch. The main branch includes circuit components to generate a control voltage for the control electrode of the transistor in accordance with the control signal, and the feedforward branch comprises circuit components to generate a charging current or, alternatively, a discharging current as a reaction to a slope of the control signal, the current charging or discharging, respectively, the control electrode of the transistor.
    Type: Application
    Filed: February 24, 2020
    Publication date: August 27, 2020
    Inventors: Michael Lenz, Damiano Gadler, Ioannis Pachnis, Albino Pidutti
  • Patent number: 10666158
    Abstract: A rectifier device is described herein. In accordance with one embodiment, the rectifier device includes a semiconductor body doped with dopants of a first doping type and one or more well regions arranged in the semiconductor body and doped with dopants of a second doping type. The rectifier device further includes a controllable resistance circuit that is electrically connected between the semiconductor body and a first well region of one or more well regions and configured to provide a resistive current path between the semiconductor body and the first well region. The resistance of the current path is dependent on an instantaneous level of an alternating input voltage.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: May 26, 2020
    Assignee: Infineon Technologies AG
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Patent number: 10622912
    Abstract: A rectifier device includes a first transistor having a load current path and a diode connected in parallel to the load current path between an anode terminal and a cathode terminal. An alternating input voltage is operably applied between the anode terminal and the cathode terminal. A control circuit is coupled to a gate terminal of the first transistor and configured to switch the first transistor on for an on-time period, during which the diode is forward biased. A clamping circuit is coupled to the gate terminal of the first transistor and configured to at least partly switch on the first transistor while the diode is reverse biased and when the level of the alternating input voltage reaches a clamping voltage. The clamping circuit includes an additional circuit coupled between the cathode terminal and the gate terminal and configured to provide a voltage dependent on a load current.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: April 14, 2020
    Assignee: Infineon Technologies AG
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Patent number: 10547250
    Abstract: A rectifier device is described herein. In accordance with one embodiment, the rectifier device includes a semiconductor body doped with dopants of a first doping type and one or more well regions arranged in the semiconductor body and doped with dopants of a second doping type. Thereby, the one or more well regions and the surrounding semiconductor body form a pn-junction. The rectifier device further includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode, which is parallel to the load current path. An alternating input voltage is applied between the anode terminal and the cathode terminal during operation of the rectifier device.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: January 28, 2020
    Assignee: Infineon Technologies AG
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Publication number: 20190372477
    Abstract: A rectifier device is described herein. In accordance with one embodiment, the rectifier device includes a semiconductor body doped with dopants of a first doping type and one or more well regions arranged in the semiconductor body and doped with dopants of a second doping type. Thereby, the one or more well regions and the surrounding semiconductor body form a pn-junction. The rectifier device further includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode, which is parallel to the load current path. An alternating input voltage is applied between the anode terminal and the cathode terminal during operation of the rectifier device.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Publication number: 20190372476
    Abstract: A rectifier device is described herein. In accordance with one embodiment, the rectifier device includes a semiconductor body doped with dopants of a first doping type and one or more well regions arranged in the semiconductor body and doped with dopants of a second doping type. Thus, the one or more well regions and the surrounding semiconductor body form a pn-junction. The rectifier device includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode, which is connected parallel to the load current path. During operation, an alternating input voltage is applied between the anode terminal and the cathode terminal. The rectifier device includes a control circuit that is configured to switch on the first MOS transistor for an on-time period, during which the diode is forward biased. The first MOS transistor and the diode are integrated in the semiconductor body, and the control circuit is at least partly arranged in the one or more well regions.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Publication number: 20190334451
    Abstract: A rectifier device includes a first transistor having a load current path and a diode connected in parallel to the load current path between an anode terminal and a cathode terminal. An alternating input voltage is operably applied between the anode terminal and the cathode terminal. A control circuit is coupled to a gate terminal of the first transistor and configured to switch the first transistor on for an on-time period, during which the diode is forward biased. A clamping circuit is coupled to the gate terminal of the first transistor and configured to at least partly switch on the first transistor while the diode is reverse biased and when the level of the alternating input voltage reaches a clamping voltage. The clamping circuit includes an additional circuit coupled between the cathode terminal and the gate terminal and configured to provide a voltage dependent on a load current.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 31, 2019
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Patent number: 10381919
    Abstract: A rectifier is described herein. According to one example, the rectifier includes a semiconductor substrate and further includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode that is connected parallel to a load current path. An alternating input voltage is operably applied between the anode terminal and the cathode terminal. Further, the rectifier includes a control circuit that is configured to switch the first MOS transistor on for an on-time period, during which the diode is forward biased. The first MOS transistor, the diode, and the control circuit are integrated in the semiconductor substrate.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: August 13, 2019
    Assignee: Infineon Technologies AG
    Inventors: Albino Pidutti, Damiano Gadler, Herbert Gietler, Michael Lenz, Yavuz Kilic, Ioannis Pachnis
  • Patent number: 10033297
    Abstract: A rectifier is described herein. According to one example, the rectifier includes a semiconductor substrate and further includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode that is connected parallel to a load current path. An alternating input voltage is operably applied between the anode terminal and the cathode terminal. Further, the rectifier includes a control circuit that is configured to switch the first MOS transistor on for an on-time period, during which the diode is forward biased. The first MOS transistor, the diode, and the control circuit are integrated in the semiconductor substrate.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 24, 2018
    Assignee: Infineon Technologies AG
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Publication number: 20180166999
    Abstract: A rectifier is described herein. According to one example, the rectifier includes a semiconductor substrate and further includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode that is connected parallel to a load current path. An alternating input voltage is operably applied between the anode terminal and the cathode terminal. Further, the rectifier includes a control circuit that is configured to switch the first MOS transistor on for an on-time period, during which the diode is forward biased. The first MOS transistor, the diode, and the control circuit are integrated in the semiconductor substrate.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Inventors: Albino Pidutti, Damiano Gadler, Ioannis Pachnis
  • Publication number: 20180166971
    Abstract: A rectifier is described herein. According to one example, the rectifier includes a semiconductor substrate and further includes an anode terminal and a cathode terminal connected by a load current path of a first MOS transistor and a diode that is connected parallel to a load current path. An alternating input voltage is operably applied between the anode terminal and the cathode terminal. Further, the rectifier includes a control circuit that is configured to switch the first MOS transistor on for an on-time period, during which the diode is forward biased. The first MOS transistor, the diode, and the control circuit are integrated in the semiconductor substrate.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Inventors: Albino Pidutti, Damiano Gadler, Herbert Gietler, Michael Lenz, Yavuz Kilic, Ioannis Pachnis