Patents by Inventor Chung-Fu Lai

Chung-Fu Lai 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).

  • Patent number: 9853447
    Abstract: Active droop current sharing among power supply units may regulate output currents of power supply units supplying shared current to a common load. The regulation may employ a combination of droop control and active current control. The shared current may be regulated such that each power supply unit provides a substantially equal share of the total current supplied. A current difference between two power supplies may be regulated to be within a desired maximum threshold for current difference.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: December 26, 2017
    Assignee: Dell Products L.P.
    Inventors: Tsai-Fu Hung, Shih-Chieh Wang, Yi-Chiao Hsu, Chung-Fu Lai
  • Patent number: 9760139
    Abstract: Methods and systems for power supply unit (PSU) current sharing may include an In-System Power Monitoring and Management (IPMM) module monitoring an output value of a first power supply unit in a multi-power supply system. In an embodiment, the IPMM module may monitor an output value of a second power supply unit in the multi-power supply system. Additionally, the IPMM module may monitor an output performance parameter for the multi-power supply system. Furthermore, the IPMM module may adjust a setting of at least one of the first power supply unit and the second power supply unit for optimization of a current sharing performance parameter of the multi-power supply system. In various embodiments, the setting may include a droop voltage value, a distribution impedance value, or a set voltage increment value of at least one of the first power supply unit and the second power supply unit.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: September 12, 2017
    Assignee: DELL PRODUCTS, L.P.
    Inventors: Yung Fa Chueh, Tsai-Fu Hung, Chung-Fu Lai, Shih-Chieh Wang
  • Publication number: 20160291660
    Abstract: Methods and systems for power supply unit (PSU) current sharing may include an In-System Power Monitoring and Management (IPMM) module monitoring an output value of a first power supply unit in a multi-power supply system. In an embodiment, the IPMM module may monitor an output value of a second power supply unit in the multi-power supply system. Additionally, the IPMM module may monitor an output performance parameter for the multi-power supply system. Furthermore, the IPMM module may adjust a setting of at least one of the first power supply unit and the second power supply unit for optimization of a current sharing performance parameter of the multi-power supply system. In various embodiments, the setting may include a droop voltage value, a distribution impedance value, or a set voltage increment value of at least one of the first power supply unit and the second power supply unit.
    Type: Application
    Filed: April 2, 2015
    Publication date: October 6, 2016
    Applicant: DELL PRODUCTS, L.P.
    Inventors: Yung Fa Chueh, Tsai-Fu Hung, Chung-Fu Lai, Shih-Chieh Wang
  • Publication number: 20160134108
    Abstract: Active droop current sharing among power supply units may regulate output currents of power supply units supplying shared current to a common load. The regulation may employ a combination of droop control and active current control. The shared current may be regulated such that each power supply unit provides a substantially equal share of the total current supplied. A current difference between two power supplies may be regulated to be within a desired maximum threshold for current difference.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Tsai-Fu Hung, Shih-Chieh Wang, Yi-Chiao Hsu, Chung-Fu Lai