Patents by Inventor Siang-Yu Yang

Siang-Yu Yang 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).

  • Flyback converter system and feedback controlling apparatus and method for the same
    Patent number: 8804379
    Abstract: A flyback converter system and feedback controlling apparatus and method of operating the same are disclosed. The feedback controlling apparatus for the flyback converter system includes a primary feedback loop unit for generating a primary feedback signal, and a secondary feedback loop unit for generating a secondary feedback signal, a loop selector. In light-load conditions, the loop selector supplies the primary feedback signal to a PWM controller for feedback control, and the secondary feedback loop unit is disabled by a power monitor to save electrical energy.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: August 12, 2014
    Assignee: Neoenergy Microelectronics, Inc.
    Inventors: Wei-Chan Hsu, Chong-Hock Yeam, Siang-Yu Yang
  • APPARATUS AND METHOD FOR REDUCING AUDIBLE NOISE OF POWER SUPPLY
    Publication number: 20130308791
    Abstract: A method for reducing audible noise of a power supply provides a PWM signal for controlling a power converter. First, a feedback voltage is produced by detecting an output voltage of the power converter. Afterward, a burst-in voltage and a burst-out voltage are set. Afterward, a voltage level of the burst-in voltage or a voltage level of the burst-out voltage is dynamically varied. Afterward, the PWM signal is switched off when the feedback voltage is less than the burst-in voltage. Final, the PWM signal is switched on when the feedback voltage is greater than the burst-out voltage.
    Type: Application
    Filed: September 27, 2012
    Publication date: November 21, 2013
    Applicant: NEOENERGY MICROELECTRONICS, INC.
    Inventors: Siang-Yu YANG, Kuan-Sheng WANG, Chien-Hung LIU
  • FLYBACK CONVERTER SYSTEM AND FEEDBACK CONTROLLING APPARATUS AND METHOD FOR THE SAME
    Publication number: 20110255311
    Abstract: A flyback converter system and feedback controlling apparatus and method of operating the same are disclosed. The feedback controlling apparatus for the flyback converter system includes a primary feedback loop unit for generating a primary feedback signal, and a secondary feedback loop unit for generating a secondary feedback signal, a loop selector. In light-load conditions, the loop selector supplies the primary feedback signal to a PWM controller for feedback control, and the secondary feedback loop unit is disabled by a power monitor to save electrical energy.
    Type: Application
    Filed: January 24, 2011
    Publication date: October 20, 2011
    Inventors: Wei-Chan HSU, Chong-Hock Yeam, Siang-Yu Yang