Patents by Inventor Zhen Lian

Zhen Lian 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: 9692305
    Abstract: A method for controlling a resonant DC/DC power converting circuit is provided. The resonant DC/DC power converting circuit having a converter output and a converter input comprises at least two converters having similar structures and outputs connected in parallel as said converter output, and a controller. Each converter comprises a full-bridge inverter unit and a resonant unit. The full-bridge inverter unit is configured with at least four switches. The resonant unit is coupled with said full-bridge inverter unit. The controller outputs two groups of driving control signals to drive four switches in said two converters respectively. The method comprises: making said two converters operate at the same frequency and interleave with preset phase shift; and making two of driving control signals in one group interleave with preset angle to reduce output current of said converter corresponding controlled thereby, when output currents of said two converters are not approximately equal.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 27, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chao Yan, Yi-Qing Ye, Zhi-Zhen Lian
  • Publication number: 20160190940
    Abstract: A method for controlling a resonant DC/DC power converting circuit is provided. The resonant DC/DC power converting circuit having a converter output and a converter input comprises at least two converters having similar structures and outputs connected in parallel as said converter output, and a controller. Each converter comprises a full-bridge inverter unit and a resonant unit. The full-bridge inverter unit is configured with at least four switches. The resonant unit is coupled with said full-bridge inverter unit. The controller outputs two groups of driving control signals to drive four switches in said two converters respectively. The method comprises: making said two converters operate at the same frequency and interleave with preset phase shift; and making two of driving control signals in one group interleave with preset angle to reduce output current of said converter corresponding controlled thereby, when output currents of said two converters are not approximately equal.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 30, 2016
    Inventors: Chao YAN, Yi-Qing YE, Zhi-Zhen LIAN
  • Patent number: D737204
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: August 25, 2015
    Assignee: ABB TECHNOLOGY LTD.
    Inventors: Wenlong Jia, Zhen Lian, Bin Li
  • Patent number: D737209
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: August 25, 2015
    Assignee: ABB TECHNOLOGY LTD.
    Inventors: Lei Wang, Wenlong Jia, Zhen Lian, Bin Li