Patents by Inventor Stephen Ulbrich

Stephen Ulbrich 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: 10340786
    Abstract: A rectifier circuit can include a plurality of FETs arranged as a rectifier; and a start-up circuit applied to each of the plurality of FETs that turn each of the FETs off during a circuit startup period, wherein the start-up circuit provides a large impedance for low power dissipation during normal operation of the rectifier.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: July 2, 2019
    Assignee: Integrated Device Technology, Inc.
    Inventors: Lijie Zhao, Yue Wang, Stephen Ulbrich
  • Publication number: 20190058392
    Abstract: A rectifier circuit can include a plurality of FETs arranged as a rectifier; and a start-up circuit applied to each of the plurality of FETs that turn each of the FETs off during a circuit startup period, wherein the start-up circuit provides a large impedance for low power dissipation during normal operation of the rectifier.
    Type: Application
    Filed: February 15, 2018
    Publication date: February 21, 2019
    Inventors: Lijie ZHAO, Yue WANG, Stephen ULBRICH
  • Patent number: 9979290
    Abstract: A switching regulator is presented. An embodiment of the switching regulator can include a high switch coupled between an input voltage and a switched output; a low switch coupled between the switched output and a ground; and a ringing switch coupled between a capacitor and the switched output, wherein the ringing switch is closed prior to transition into a tristate where both the high switch and the low switch are open.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 22, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventor: Stephen Ulbrich
  • Publication number: 20180076711
    Abstract: A switching regulator is presented. An embodiment of the switching regulator can include a high switch coupled between an input voltage and a switched output; a low switch coupled between the switched output and a ground; and a ringing switch coupled between a capacitor and the switched output, wherein the ringing switch is closed prior to transition into a tristate where both the high switch and the low switch are open.
    Type: Application
    Filed: September 14, 2016
    Publication date: March 15, 2018
    Applicant: Integrated Device Technology, Inc.
    Inventor: Stephen ULBRICH
  • Patent number: 9899908
    Abstract: A rectifier circuit can include a plurality of FETs arranged as a rectifier; and a start-up circuit applied to each of the plurality of FETs that turn each of the FETs off during a circuit startup period, wherein the start-up circuit provides a large impedance for low power dissipation during normal operation of the rectifier.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: February 20, 2018
    Assignee: Integrated Device Technology, Inc.
    Inventors: Lijie Zhao, Yue Wang, Stephen Ulbrich
  • Patent number: 9136764
    Abstract: Power control systems and power control devices may include a power control chip having a power control module configured to generate a power stage control signal, and an external power stage having a timing control module. The timing control module may be configured to receive the power stage control signal and generate a timing control signal controlling at least one switch to regulate an output voltage of the external power stage. The power control device further includes an auto-configuration module configured to communicate with the external power stage and request auto-configuration information from the external power stage. A related method of auto-configuring a power control system includes communicating auto-configuration information between at least one external power stage of a power control system and a power control chip, and configuring a setting of the at least one external power stage of the power control system based on the auto-configuration information.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: September 15, 2015
    Assignee: Integrated Device Technology, Inc.
    Inventors: Jan Krellner, Stephen Ulbrich, Kenneth Kwok
  • Patent number: 9112410
    Abstract: Power control systems and power control devices may include a power control chip having a power control module configured to generate a power stage control signal, and at least one power stage having a timing control module that is physically separate from the power control module. The timing control module may be configured to receive the power stage control signal and generate a timing control signal controlling at least one switch to regulate an output voltage of the at least one power stage. A related method may include generating power stage control information indicating an offset between an output voltage and a desired regulated output voltage, transmitting the power stage control information between modules that are physically separate, and timing signals for controlling a switching converter to regulate the output voltage. A related method of auto-configuring a power control system is also disclosed.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: August 18, 2015
    Assignee: INTEGRATED DEVICE TECHNOLOGY, inc.
    Inventors: Stephen Ulbrich, Jack Cornish, Kenneth Kwok, Jan Krellner
  • Publication number: 20130278234
    Abstract: Power control systems and power control devices may include a power control chip having a power control module configured to generate a power stage control signal, and an external power stage having a timing control module. The timing control module may be configured to receive the power stage control signal and generate a timing control signal controlling at least one switch to regulate an output voltage of the external power stage. The power control device further includes an auto-configuration module configured to communicate with the external power stage and request auto-configuration information from the external power stage. A related method of auto-configuring a power control system includes communicating auto-configuration information between at least one external power stage of a power control system and a power control chip, and configuring a setting of the at least one external power stage of the power control system based on the auto-configuration information.
    Type: Application
    Filed: April 19, 2012
    Publication date: October 24, 2013
    Applicant: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Jan Krellner, Stephen Ulbrich, Kenneth Kwok
  • Publication number: 20130265022
    Abstract: Power control systems and power control devices may include a power control chip having a power control module configured to generate a power stage control signal, and at least one power stage having a timing control module that is physically separate from the power control module. The timing control module may be configured to receive the power stage control signal and generate a timing control signal controlling at least one switch to regulate an output voltage of the at least one power stage. A related method may include generating power stage control information indicating an offset between an output voltage and a desired regulated output voltage, transmitting the power stage control information between modules that are physically separate, and timing signals for controlling a switching converter to regulate the output voltage. A related method of auto-configuring a power control system is also disclosed.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 10, 2013
    Applicant: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Stephen Ulbrich, Jack Cornish, Kenneth Kwok, Jan Krellner