Patents by Inventor Dengke Chen

Dengke Chen 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).

  • Overvoltage protection circuit, integrated circuit and switching converter with the same
    Patent number: 11750083
    Abstract: An overvoltage protection circuit configured to prevent an overvoltage of an output voltage of a switching converter, can include: an output voltage simulation circuit configured to generate an output voltage simulation signal according to circuit parameters of the switching converter, where the output voltage simulation signal changes along with the output voltage; and an overvoltage signal generator configured to activate an overvoltage signal when a feedback voltage is less than a first threshold value and the output voltage simulation signal is greater than a second threshold value.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: September 5, 2023
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventors: Dengke Chen, Hongfeng Fan
  • Preparation method and use of flexible and elastic drag reduction film
    Patent number: 11396115
    Abstract: The present invention relates to the technical field of flexible drag reduction coatings, and in particular to a method for preparing a flexible and elastic drag reduction film. The flexible and elastic drag reduction film prepared by the present invention has excellent flexibility and elasticity. The film has a groove structure on a surface, and is suitable for curved surfaces and pipe surfaces of different diameters. The film is directly used without the need for an adhesive. It is sheathed on curved structures or devices of different diameters and curvatures by virtue of its own flexibility and elasticity, reducing an error due to the film adhesion.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: July 26, 2022
    Assignee: BEIHANG UNIVERSITY
    Inventors: Dengke Chen, Huawei Chen, Yang Liu, Zehui Zhao, Song Zhao
  • OVERVOLTAGE PROTECTION CIRCUIT, INTEGRATED CIRCUIT AND SWITCHING CONVERTER WITH THE SAME
    Publication number: 20220158542
    Abstract: An overvoltage protection circuit configured to prevent an overvoltage of an output voltage of a switching converter, can include: an output voltage simulation circuit configured to generate an output voltage simulation signal according to circuit parameters of the switching converter, where the output voltage simulation signal changes along with the output voltage; and an overvoltage signal generator configured to activate an overvoltage signal when a feedback voltage is less than a first threshold value and the output voltage simulation signal is greater than a second threshold value.
    Type: Application
    Filed: February 2, 2022
    Publication date: May 19, 2022
    Inventors: Dengke Chen, Hongfeng Fan
  • Overvoltage protection circuit, integrated circuit and switching converter with the same
    Patent number: 11277064
    Abstract: An overvoltage protection circuit configured to prevent an overvoltage of an output voltage of a switching converter, can include: an output voltage simulation circuit configured to generate an output voltage simulation signal according to circuit parameters of the switching converter, where the output voltage simulation signal changes along with the output voltage; and an overvoltage signal generator configured to activate an overvoltage signal when a feedback voltage is less than a first threshold value and the output voltage simulation signal is greater than a second threshold value.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: March 15, 2022
    Assignee: Silergy Semiconductor Technology (Hangzhou) LTD
    Inventors: Dengke Chen, Hongfeng Fan
  • PREPARATION METHOD AND USE OF FLEXIBLE AND ELASTIC DRAG REDUCTION FILM
    Publication number: 20200346373
    Abstract: The present invention relates to the technical field of flexible drag reduction coatings, and in particular to a method for preparing a flexible and elastic drag reduction film. The flexible and elastic drag reduction film prepared by the present invention has excellent flexibility and elasticity. The film has a groove structure on a surface, and is suitable for curved surfaces and pipe surfaces of different diameters. The film is directly used without the need for an adhesive. It is sheathed on curved structures or devices of different diameters and curvatures by virtue of its own flexibility and elasticity, reducing an error due to the film adhesion.
    Type: Application
    Filed: April 28, 2020
    Publication date: November 5, 2020
    Inventors: Dengke CHEN, Huawei CHEN, Yang LIU, Zehui ZHAO, Song ZHAO
  • OVERVOLTAGE PROTECTION CIRCUIT, INTEGRATED CIRCUIT AND SWITCHING CONVERTER WITH THE SAME
    Publication number: 20180367027
    Abstract: An overvoltage protection circuit configured to prevent an overvoltage of an output voltage of a switching converter, can include: an output voltage simulation circuit configured to generate an output voltage simulation signal according to circuit parameters of the switching converter, where the output voltage simulation signal changes along with the output voltage; and an overvoltage signal generator configured to activate an overvoltage signal when a feedback voltage is less than a first threshold value and the output voltage simulation signal is greater than a second threshold value.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Inventors: Dengke Chen, Hongfeng Fan