Patents by Inventor Ching-Yueh YU

Ching-Yueh YU 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 system and power controlling method and apparatus thereof
    Patent number: 8928298
    Abstract: A power controlling method includes the following steps. A first Proportional Integral (PI) computation is performed according to an input current signal and command. Next, whether the input current signal is greater than a maximum rated charging current of a battery unit is determined to generate a switching signal for controlling a brake unit correspondingly. Then, a second PI computation is performed in accordance with the output voltage signal and a predetermined voltage command. Thereafter, the output voltage signal and the voltage command are compared to set an output current command selectively. Next, a third PI computation is performed in accordance with the output current signal and command to adjust a first pair of switching signals and a second pair of switching signals, such that a switching unit performs a corresponding switching action to adjust the output voltage signal. A power system and a power controlling apparatus are provide.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: January 6, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Chih-Hung Hsiao, Cheng-Chieh Chan, Ching-Yueh Yu, Yueh-Shan Lin
  • Power System and Power Controlling Method and Apparatus Thereof
    Publication number: 20130088210
    Abstract: A power controlling method includes the following steps. A first Proportional Integral (PI) computation is performed according to an input current signal and command. Next, whether the input current signal is greater than a maximum rated charging current of a battery unit is determined to generate a switching signal for controlling a brake unit correspondingly. Then, a second PI computation is performed in accordance with the output voltage signal and a predetermined voltage command. Thereafter, the output voltage signal and the voltage command are compared to set an output current command selectively. Next, a third PI computation is performed in accordance with the output current signal and command to adjust a first pair of switching signals and a second pair of switching signals, such that a switching unit performs a corresponding switching action to adjust the output voltage signal. A power system and a power controlling apparatus are provide.
    Type: Application
    Filed: January 17, 2012
    Publication date: April 11, 2013
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Chih-Hung HSIAO, Cheng-Chieh CHAN, Ching-Yueh YU, Yueh-Shan LIN