Patents by Inventor Jingyan Li

Jingyan Li 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).

  • Power supply device and uniform current control method
    Patent number: 8456875
    Abstract: A power supply device for providing an output voltage includes a first resonant converter, a second resonant converter, a first converting circuit, and a current regulating circuit. The first resonant converter is for converting a first input voltage into the output voltage. The second resonant converter is for converting a second input voltage into the output voltage. The output ends of the first and second resonant converters are coupled in parallel. The first converting circuit is coupled to the first resonant converter and is operable to provide the first input voltage to the first resonant converter. The current regulating circuit receives signals related to output currents of the first and second resonant converters, and drives operation of the first converting circuit according to the signals received thereby such that the output currents of the first and second resonant converters have substantially equal magnitudes.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: June 4, 2013
    Assignees: Silitek Electronic (Guangzhou) Co., Ltd., Lite-On Technology Corp.
    Inventors: Jingyan Li, Qinglin Zhao, Zhihong Ye, Mingzhu Li, Fei Luo
  • Power supply device and uniform current control method
    Publication number: 20110080146
    Abstract: A power supply device for providing an output voltage includes a first resonant converter, a second resonant converter, a first converting circuit, and a current regulating circuit. The first resonant converter is for converting a first input voltage into the output voltage. The second resonant converter is for converting a second input voltage into the output voltage. The output ends of the first and second resonant converters are coupled in parallel. The first converting circuit is coupled to the first resonant converter and is operable to provide the first input voltage to the first resonant converter. The current regulating circuit receives signals related to output currents of the first and second resonant converters, and drives operation of the first converting circuit according to the signals received thereby such that the output currents of the first and second resonant converters have substantially equal magnitudes.
    Type: Application
    Filed: January 11, 2010
    Publication date: April 7, 2011
    Inventors: Jingyan Li, Qinglin Zhao, Zhihong Ye, Mingzhu Li, Fei Luo
  • Universal chassis for transfer robot
    Patent number: D866628
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: November 12, 2019
    Assignee: NINEBOT (BEIJING) TECH. CO., LTD
    Inventors: Weining Xi, Bin Shen, Xin Hou, Qiming Wang, Jingyan Li