Patents by Inventor Yuanzhong Zhou

Yuanzhong Zhou 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: 10581423
    Abstract: Fault tolerant switches are provided herein. In certain embodiments, a fault tolerant switch includes a switch, a gate driver, and a clamp. The switch includes a switch p-type field effect transistor (PFET) and a switch n-type field effect transistor (NFET) electrically connected in series and controlled by the gate driver. Additionally, the clamp is electrically connected in parallel with the switch, and includes a forward protection circuit including a first diode and a first clamp FET in series, and a reverse protection circuit including a second diode and a second clamp FET in series. The clamp further includes a first gate bias circuit configured to bias a gate of the first clamp FET and a second gate bias circuit configured to bias a gate of the second clamp FET.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: March 3, 2020
    Assignee: Analog Devices Global Unlimited Company
    Inventors: Srivatsan Parthasarathy, Sirui Luo, Thomas Paul Kearney, Yuanzhong Zhou, Donal Bourke, Jean-Jacques Hajjar
  • Publication number: 20200059228
    Abstract: Fault tolerant switches are provided herein. In certain embodiments, a fault tolerant switch includes a switch, a gate driver, and a clamp. The switch includes a switch p-type field effect transistor (PFET) and a switch n-type field effect transistor (NFET) electrically connected in series and controlled by the gate driver. Additionally, the clamp is electrically connected in parallel with the switch, and includes a forward protection circuit including a first diode and a first clamp FET in series, and a reverse protection circuit including a second diode and a second clamp FET in series. The clamp further includes a first gate bias circuit configured to bias a gate of the first clamp FET and a second gate bias circuit configured to bias a gate of the second clamp FET.
    Type: Application
    Filed: January 2, 2019
    Publication date: February 20, 2020
    Inventors: Srivatsan Parthasarathy, Sirui Luo, Thomas Paul Kearney, Yuanzhong Zhou, Donal Bourke, Jean-Jacques Hajjar
  • Patent number: 10404059
    Abstract: Distributed switches to suppress transient electrical overstress-induced latch-up are provided. In certain configurations, an integrated circuit (IC) or semiconductor chip includes a transient electrical overstress detection circuit that activates a transient overstress detection signal in response to detecting a transient electrical overstress event between a pair of power rails. The IC further includes mixed-signal circuits and latch-up suppression switches distributed across the IC, and the latch-up suppression switches temporarily clamp the power rails to one another in response to activation of the transient overstress detection signal to inhibit latch-up of the mixed-signal circuits.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: September 3, 2019
    Assignee: Analog Devices, Inc.
    Inventors: Javier Alejandro Salcedo, Srivatsan Parthasarathy, Linfeng He, Yuanzhong Zhou
  • Publication number: 20180226788
    Abstract: Distributed switches to suppress transient electrical overstress-induced latch-up are provided. In certain configurations, an integrated circuit (IC) or semiconductor chip includes a transient electrical overstress detection circuit that activates a transient overstress detection signal in response to detecting a transient electrical overstress event between a pair of power rails. The IC further includes mixed-signal circuits and latch-up suppression switches distributed across the IC, and the latch-up suppression switches temporarily clamp the power rails to one another in response to activation of the transient overstress detection signal to inhibit latch-up of the mixed-signal circuits.
    Type: Application
    Filed: February 9, 2017
    Publication date: August 9, 2018
    Inventors: Javier Alejandro Salcedo, Srivatsan Parthasarathy, Linfeng He, Yuanzhong Zhou
  • Publication number: 20060183886
    Abstract: The present invention relates to the design and synthesis of homogeneous A-L-P constructs, which contain a hepatic ligand to direct an oligomer or “payload” to a hepatocyte intracellularly via a receptor-mediated, ligand-directed pathway.
    Type: Application
    Filed: October 21, 2005
    Publication date: August 17, 2006
    Inventors: Paul Tso, Robert Duff, Yuanzhong Zhou, Scott Deamond, Clinton Roby
  • Publication number: 20030119724
    Abstract: The present invention relates to the design and synthesis of homogeneous A-L-P constructs, which contain a hepatic ligand to direct an oligomer or “payload” to a hepatocyte intracellularly via a receptor-mediated, ligand-directed pathway.
    Type: Application
    Filed: June 22, 2001
    Publication date: June 26, 2003
    Inventors: Paul O.P. Ts`o, Robert Duff, Yuanzhong Zhou, Scott Deamond, Clinton Roby