Patents by Inventor Wendong Z. Zhang

Wendong Z. Zhang 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).

  • Inrush current controller
    Patent number: RE45734
    Abstract: An inrush current controller for a device has a connector for hot-plugging the device into a source of energization. An impedance has a current input coupled to a first contact of the connector and a current output coupled to the device. The impedance has an impedance control input. An impedance control circuit has a logic input coupling to a second contact of the connector. The impedance control circuit has an impedance control output connected to the impedance control input. The impedance control output forces the impedance OFF during a first time interval after hot-plugging. The logic input triggers a limited inrush at the current input after the first time interval.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: October 6, 2015
    Assignee: Seagate Technology LLC
    Inventors: Hakam D. Hussein, Wendong Z. Zhang