Patents by Inventor Chi-Seng Lee

Chi-Seng Lee 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).

  • DC-DC power conversion apparatus and method
    Patent number: 9356526
    Abstract: A DC-DC power conversion apparatus and a DC-DC power conversion method are provided. The DC-DC power conversion apparatus includes a switching circuit, a main transformer circuit, a main rectifier circuit, an auxiliary transformer circuit and an auxiliary rectifier circuit. The switching circuit provides an input power to a primary winding of the main transformer circuit or a primary winding of the auxiliary transformer circuit by time-division. An AC input terminal of the main rectifier circuit is coupled to a secondary winding of the main transformer circuit. An AC input terminal of the auxiliary rectifier circuit is coupled to a secondary winding of the auxiliary transformer circuit. A power output terminal of the auxiliary rectifier circuit is coupled to a reference voltage terminal of the main rectifier circuit for lifting a voltage of the power output terminal of the main rectifier circuit.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: May 31, 2016
    Assignee: Industrial Technology Research Institute
    Inventors: Chi-Seng Lee, Nan-Hsiung Tseng, Chin-Hone Lin, Wei-Han Lai, Hidekazu Miwa, Jih-Sheng Lai
  • DC-DC POWER CONVERSION APPARATUS AND METHOD
    Publication number: 20150162845
    Abstract: A DC-DC power conversion apparatus and a DC-DC power conversion method are provided. The DC-DC power conversion apparatus includes a switching circuit, a main transformer circuit, a main rectifier circuit, an auxiliary transformer circuit and an auxiliary rectifier circuit. The switching circuit provides an input power to a primary winding of the main transformer circuit or a primary winding of the auxiliary transformer circuit by time-division. An AC input terminal of the main rectifier circuit is coupled to a secondary winding of the main transformer circuit. An AC input terminal of the auxiliary rectifier circuit is coupled to a secondary winding of the auxiliary transformer circuit. A power output terminal of the auxiliary rectifier circuit is coupled to a reference voltage terminal of the main rectifier circuit for lifting a voltage of the power output terminal of the main rectifier circuit.
    Type: Application
    Filed: January 28, 2014
    Publication date: June 11, 2015
    Applicant: Industrial Technology Research Institute
    Inventors: Chi-Seng Lee, Nan-Hsiung Tseng, Chin-Hone Lin, Wei-Han Lai, Hidekazu Miwa, Jih-Sheng Lai