Patents by Inventor Yun-Tsung LIU

Yun-Tsung LIU 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).

  • Controlling method for single-phase bidirectional inverter and device thereof
    Patent number: 11362599
    Abstract: A controlling method is for a single-phase bidirectional inverter. The single-phase bidirectional inverter includes a switch and an inductor. The controlling method for the single-phase bidirectional inverter includes an extracting step, a calculating step, and an integrating step. In the extracting step, a current command is inputted to the switch and obtaining a current through the inductor. The current is piecewisely linearized to extract a magnetizing inductance and a demagnetizing inductance of the inductor. In the calculating step, a duty ratio of the switch is used to calculate a variation of the current of the magnetizing inductance and a variation of the current of the demagnetizing inductance. In the integrating step, the variation of the current of the magnetizing inductance and the variation of the current of the demagnetizing inductance are integrated to obtain another duty ratio of the switch in the next cycle.
    Type: Grant
    Filed: June 21, 2020
    Date of Patent: June 14, 2022
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Tsai-Fu Wu, Temir Sakavov, Yen-Hsiang Huang, Yun-Tsung Liu
  • CONTROLLING METHOD FOR SINGLE-PHASE BIDIRECTIONAL INVERTER AND DEVICE THEREOF
    Publication number: 20210257928
    Abstract: A controlling method is for a single-phase bidirectional inverter. The single-phase bidirectional inverter includes a switch and an inductor. The controlling method for the single-phase bidirectional inverter includes an extracting step, a calculating step, and an integrating step. In the extracting step, a current command is inputted to the switch and obtaining a current through the inductor. The current is piecewisely linearized to extract a magnetizing inductance and a demagnetizing inductance of the inductor. In the calculating step, a duty ratio of the switch is used to calculate a variation of the current of the magnetizing inductance and a variation of the current of the demagnetizing inductance. In the integrating step, the variation of the current of the magnetizing inductance and the variation of the current of the demagnetizing inductance are integrated to obtain another duty ratio of the switch in the next cycle.
    Type: Application
    Filed: June 21, 2020
    Publication date: August 19, 2021
    Inventors: Tsai-Fu WU, Temir SAKAVOV, Yen-Hsiang HUANG, Yun-Tsung LIU