Patents by Inventor Weng Keong Che

Weng Keong Che 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).

  • CONTROL SYSTEM FOR BUCK CONVERTER
    Publication number: 20230012565
    Abstract: The present disclosure provides a control system of a buck converter, relating to the field of Internet of Things. The control system of a buck converter provided in an embodiment of the present disclosure includes a first control module, a second control module, and a mode selector. The first control module is turned on and the second control module is turned off through an analog current sensor in the mode selector when an IoT device switches from a transmission mode to a sleep mode or a standby mode, so that the first control module outputs a first voltage pulse to the driving and level shifter module, wherein a frequency of the first voltage pulse is determined by a frequency of a first clock in the first control module, and a width of the first voltage pulse is determined by a frequency of a second clock in the first control module.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 19, 2023
    Inventors: Wenliang ZENG, Chi Seng LAM, Sai Weng SIN, Weng Keong CHE, Rui Paulo Da Silva MARTINS, Ran DING
  • Control system for buck converter
    Patent number: 11545901
    Abstract: The present disclosure provides a control system of a buck converter, relating to the field of Internet of Things. The control system of a buck converter provided in an embodiment of the present disclosure includes a first control module, a second control module, and a mode selector. The first control module is turned on and the second control module is turned off through an analog current sensor in the mode selector when an IoT device switches from a transmission mode to a sleep mode or a standby mode, so that the first control module outputs a first voltage pulse to the driving and level shifter module, wherein a frequency of the first voltage pulse is determined by a frequency of a first clock in the first control module, and a width of the first voltage pulse is determined by a frequency of a second clock in the first control module.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: January 3, 2023
    Assignee: University of Macau
    Inventors: Wenliang Zeng, Chi Seng Lam, Sai Weng Sin, Weng Keong Che, Rui Paulo Da Silva Martins, Ran Ding