Patents by Inventor Quanhui Sun

Quanhui Sun 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).

  • Electrical device with integrated transformer and common mode choke
    Patent number: 9905354
    Abstract: An electrical device includes a core structure having a first core section, a second core section, and a third core section. The electrical device further includes a first coil electrically coupled to the first core section and the second core section to form a choke and a primary winding of a transformer. The choke is configured to reduce common mode noise for an electrical signal received by the electrical device, and the primary winding of the transformer is configured to induce a magnetic field on the third core section. The electrical device also includes a second coil electrically coupled to the third core section, which forms a secondary winding of the transformer and receives electromagnetic energy from the magnetic field induced by the primary winding of the transformer.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 27, 2018
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Jianquan Lou, Quanhui Sun, Xiaoxia Zhou, Alpesh U. Bhobe, Jinghan Yu, Yingchun Shu
  • ELECTRICAL DEVICE WITH INTEGRATED TRANSFORMER AND COMMON MODE CHOKE
    Publication number: 20170178783
    Abstract: An electrical device includes a core structure having a first core section, a second core section, and a third core section. The electrical device further includes a first coil electrically coupled to the first core section and the second core section to form a choke and a primary winding of a transformer. The choke is configured to reduce common mode noise for an electrical signal received by the electrical device, and the primary winding of the transformer is configured to induce a magnetic field on the third core section. The electrical device also includes a second coil electrically coupled to the third core section, which forms a secondary winding of the transformer and receives electromagnetic energy from the magnetic field induced by the primary winding of the transformer.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Jianquan Lou, Quanhui Sun, Xiaoxia Zhou, Alpesh U. Bhobe, Jinghan Yu, Yingchun Shu
  • Modular connectors with electromagnetic interference suppression
    Patent number: 9525242
    Abstract: Presented herein is a modular connector with electromagnetic interference suppression. The modular connector includes a substrate, at least one set of spring pins, and a ferrite component. Each spring in the at least one set of springs includes a first portion adjacent the substrate and a second portion extending away from the substrate. The ferrite component surrounds the at least one set of spring pins, couples the at least one set of spring pins to the substrate, and is configured to suppress electromagnetic interference.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: December 20, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Jianquan Lou, Hongmei Fan, Quanhui Sun, Shun Li, Alpesh U. Bhobe, Jinghan Yu, Yingchun Shu