Patents by Inventor Chen-Yuan Wu

Chen-Yuan Wu 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).

  • Patent number: 12255532
    Abstract: A modular AC/DC power conversion module for power sources and loads and a method of driving the same is provided. When an AC/DC converter is electrically coupled to an external power source, a microprocessor is electrically energized by a buck auxiliary circuit, under control of the microprocessor, a DC/DC converter is activated for a certain time period, and then, the AC/DC converter is activated. Thereafter, an output voltage of the AC/DC converter is boosted, and an output voltage of the DC/DC converter is boosted accordingly. Power elements in the downstream side DC/DC converter are activated first, and then power elements in the upstream side AC/DC converter are activated, thereby an inrush current is suppressed. Once the external power source is connected, the buck auxiliary circuit will automatically reduce a voltage of the power input to activate the module. It realizes that the module will autonomously operate after being electrically energized.
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: March 18, 2025
    Assignee: CHROMA ATE INC.
    Inventors: Chen Yuan Wu, Chih Hsien Wang, Kuo Cheng Wang, Cheng Chung Lee
  • Publication number: 20230155497
    Abstract: The present invention relates to an AC/DC power conversion module and a method of driving the same. When an AC/DC converter is electrically coupled to an external power source, a microprocessor is electrically energized by a buck auxiliary circuit, under control of the microprocessor, a DC/DC converter is activated for a certain time period, and then, the AC/DC converter is activated. Thereafter, an output voltage of the AC/DC converter is boosted, and an output voltage of the DC/DC converter is boosted accordingly. Power elements in the downstream side DC/DC converter are activated first, and then power elements in the upstream side AC/DC converter are activated, thereby an inrush current is suppressed. Once the external power source is connected, the buck auxiliary circuit will automatically reduce a voltage of the power input to activate the module. It realizes that the module will autonomously operate after being electrically energized.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 18, 2023
    Inventors: Chen Yuan WU, Chih Hsien WANG, Kuo Cheng WANG, Cheng Chung LEE
  • Publication number: 20110175575
    Abstract: A battery charging/discharging system is provided. This system includes a recycling cable and plural charging/discharging controllers. Each of the charging/discharging controllers is corresponding to a battery. When the battery is in a discharging mode, a discharging current outputted from the battery flows to the recycling cable via the charging/discharging controller. When the battery charging/discharging system is operated, the recycling cable has a recycling voltage equal to a DC voltage.
    Type: Application
    Filed: September 20, 2010
    Publication date: July 21, 2011
    Applicant: CHROMA ATE, INC.
    Inventors: Chen-Yuan Wu, Yu-Chang Chien, Yao-Nan Wang, Han-Chou Liao