Patents by Inventor Weiqian Hu

Weiqian Hu 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).

  • Apparatus and method for boosting output of a generator set
    Patent number: 8643217
    Abstract: An apparatus and method for boosting output of a generator set are provided. The output of the generator set is connected to an electrical load. The apparatus includes an energy storage unit, and a power-electronic unit. The energy storage unit uses batteries and capacitors to store electric energy. The power-electronic unit measures an electrical parameter of the output of the generator set. Based on the measured electrical parameter and a predefined criterion, the power-electronic unit determines additional energy required by the electrical load. Thereafter, the power-electronic unit supplies the additional energy to the electrical load. The additional energy is drawn from the energy storage unit.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: February 4, 2014
    Assignee: Carrier Corporation
    Inventors: Thomas Gietzold, Jeffrey J. Burchill, Da Zhang, Weiqian Hu
  • Self powered supply for power converter switch driver
    Patent number: 7511976
    Abstract: Self-powered supplies are presented for powering a power converter switch driver with power obtained from an associated snubber circuit, in which a supply circuit and a snubber circuit are connected in a series path across the switch terminals with the supply circuit receiving electrical power from the snubber and providing power to the switch driver.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: March 31, 2009
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Navid Reza Zargari, Bin Wu, Weiqian Hu
  • SELF POWERED SUPPLY FOR POWER CONVERTER SWITCH DRIVER
    Publication number: 20070297202
    Abstract: Self-powered supplies are presented for powering a power converter switch driver with power obtained from an associated snubber circuit, in which a supply circuit and a snubber circuit are connected in a series path across the switch terminals with the supply circuit receiving electrical power from the snubber and providing power to the switch driver.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 27, 2007
    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
    Inventors: Navid Reza Zargari, Bin Wu, Weiqian Hu