Patents by Inventor Shengdao REN

Shengdao REN 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).

  • High step-down modular DC power supply
    Patent number: 11973422
    Abstract: The present invention discloses a high step-down modular DC power supply, belonging to the field of power electronics technology, and the high step-down modular DC power supply includes an upper modular cascade circuit string, a lower modular cascade circuit string, a load, and an input source, where the upper modular cascade circuit string includes i upper sub-module circuits, and the lower modular cascade circuit string includes j lower sub-module circuits. A combination manner of module circuits includes: upper module string cascading, lower module string cascading, and hybrid cascading of the upper module string and the lower module string. The power supply is formed to be a high voltage step-down ratio power supply with high voltage direct current input and low voltage direct current output through modular cascading.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: April 30, 2024
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Wuhua Li, Chushan Li, Lin Zhu, Huan Yang, Shengdao Ren, Huiqiang Yan, Jing Sheng, Xiangning He
  • HIGH STEP-DOWN MODULAR DC POWER SUPPLY
    Publication number: 20220337157
    Abstract: The present invention discloses a high step-down modular DC power supply, belonging to the field of power electronics technology, and the high step-down modular DC power supply includes an upper modular cascade circuit string, a lower modular cascade circuit string, a load, and an input source, where the upper modular cascade circuit string includes i upper sub-module circuits, and the lower modular cascade circuit string includes j lower sub-module circuits. A combination manner of module circuits includes: upper module string cascading, lower module string cascading, and hybrid cascading of the upper module string and the lower module string. The power supply is formed to be a high voltage step-down ratio power supply with high voltage direct current input and low voltage direct current output through modular cascading.
    Type: Application
    Filed: May 20, 2021
    Publication date: October 20, 2022
    Inventors: Wuhua LI, Chushan LI, Lin ZHU, Huan YANG, Shengdao REN, Huiqiang YAN, Jing SHENG, Xiangning HE