Patents by Inventor Shang-Ying CHUNG

Shang-Ying CHUNG 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: 10103632
    Abstract: A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the multiphase power converter, an enhanced phase control circuit and method monitor the summation of the phase currents, and when the summation becomes higher than a threshold, switch the multiphase power converter to a higher power zone to increase the number of active phases. A high efficiency and high reliability multiphase power converter is thus accomplished.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: October 16, 2018
    Assignee: RICHTEK TECHNOLOGY CORP.
    Inventors: Hung-Shou Nien, Ting-Hung Wang, Cheng-Ching Hsu, Shang-Ying Chung
  • Publication number: 20170019026
    Abstract: A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the multiphase power converter, an enhanced phase control circuit and method monitor the summation of the phase currents, and when the summation becomes higher than a threshold, switch the multiphase power converter to a higher power zone to increase the number of active phases. A high efficiency and high reliability multiphase power converter is thus accomplished.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 19, 2017
    Inventors: Hung-Shou NIEN, Ting-Hung WANG, Cheng-Ching HSU, Shang-Ying CHUNG
  • Patent number: 9461544
    Abstract: A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the multiphase power converter, an enhanced phase control circuit and method monitor the summation of the phase currents, and when the summation becomes higher than a threshold, switch the multiphase power converter to a higher power zone to increase the number of active phases. A high efficiency and high reliability multiphase power converter is thus accomplished.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: October 4, 2016
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Hung-Shou Nien, Ting-Hung Wang, Cheng-Ching Hsu, Shang-Ying Chung
  • Patent number: 8901911
    Abstract: A control circuit for a switching voltage regulator is disclosed, having a charging circuit, a discharging circuit, and a charging-discharging control circuit. The charging circuit generates a charging current according to the input voltage and the output voltage of the switching voltage regulator for charging a capacitor. The discharging circuit generates a discharging current according to the output voltage of the switching voltage regulator for discharging the capacitor. The charging-discharging control circuit configures the charging circuit, the discharging circuit, and the switching voltage regulator according to the voltage of the capacitor for providing a control signal to configure the switching voltage regulator.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: December 2, 2014
    Assignee: Richtek Technology Corporation
    Inventors: Wei-Jhih Wen, Ting-Hung Wang, Chia-Jung Lee, Shang-Ying Chung
  • Publication number: 20120262136
    Abstract: A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the multiphase power converter, an enhanced phase control circuit and method monitor the summation of the phase currents, and when the summation becomes higher than a threshold, switch the multiphase power converter to a higher power zone to increase the number of active phases. A high efficiency and high reliability multiphase power converter is thus accomplished.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 18, 2012
    Applicant: RICHTEK TECHNOLOGY CORPORATION
    Inventors: HUNG-SHOU NIEN, TING-HUNG WANG, CHENG-CHING HSU, SHANG-YING CHUNG
  • Publication number: 20120235659
    Abstract: A control circuit for a switching voltage regulator is disclosed, having a charging circuit, a discharging circuit, and a charging-discharging control circuit. The charging circuit generates a charging current according to the input voltage and the output voltage of the switching voltage regulator for charging a capacitor. The discharging circuit generates a discharging current according to the output voltage of the switching voltage regulator for discharging the capacitor. The charging-discharging control circuit configures the charging circuit, the discharging circuit, and the switching voltage regulator according to the voltage of the capacitor for providing a control signal to configure the switching voltage regulator.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Applicant: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Wei-Jhih WEN, Ting-Hung WANG, Chia-Jung LEE, Shang-Ying CHUNG