Patents by Inventor Shuwen Jia

Shuwen Jia 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).

  • Feedback device for a power supply
    Patent number: 9621049
    Abstract: The present invention relates to a feedback device for a power supply, including a main feedback module, an auxiliary feedback module and a feedback control module. The main feedback module is adapted to sample a voltage on a main output branch of the power supply, and output a main feedback voltage to the feedback control module. The auxiliary feedback module is adapted to reduce the main feedback voltage when a voltage on an auxiliary output branch of the power supply drops. The feedback control module is adapted to control the power supply to increase its power output when the main feedback voltage decreases, so that the voltage on the auxiliary output branch is restored to normal. By using the power supply feedback device of the present invention, the circuit is simple, not only solving voltage sag problems, but also ensuring the power density and cost.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: April 11, 2017
    Assignee: Emerson Network Power, Energy Systems, North America, Inc.
    Inventors: Huajun Lv, Hongbo Zhang, Shuwen Jia
  • FEEDBACK DEVICE FOR A POWER SUPPLY
    Publication number: 20140042810
    Abstract: The present invention relates to a feedback device for a power supply, including a main feedback module, an auxiliary feedback module and a feedback control module. The main feedback module is adapted to sample a voltage on a main output branch of the power supply, and output a main feedback voltage to the feedback control module. The auxiliary feedback module is adapted to reduce the main feedback voltage when a voltage on an auxiliary output branch of the power supply drops. The feedback control module is adapted to control the power supply to increase its power output when the main feedback voltage decreases, so that the voltage on the auxiliary output branch is restored to normal. By using the power supply feedback device of the present invention, the circuit is simple, not only solving voltage sag problems, but also ensuring the power density and cost.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 13, 2014
    Applicant: Emerson Networks Power Co., Ltd.
    Inventors: Huajun Lv, Hongbo Zhang, Shuwen Jia