Patents by Inventor Pei-Jung Hsieh

Pei-Jung Hsieh 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).

  • Lighting system and driving circuit thereof
    Patent number: 10674584
    Abstract: A lighting system and a driving circuit thereof are provided. The driving circuit is configured to drive a light emitting device. The driving circuit includes a bulk voltage converter. The bulk voltage converter receives an input voltage and converts the input voltage to generate a driving voltage. The bulk voltage converter includes a snubber circuit, a power switch, and an inductor. The snubber circuit receives the input voltage through a first node and generates a snubber voltage at a second node according to the input voltage. The power switch is turned on or off according to a control signal. The inductor is coupled between the first node and a third node. The driving circuit is coupled to the light emitting device through the first node and the third node and provides the driving voltage to the light emitting device.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 2, 2020
    Assignee: I-SHOU UNIVERSITY
    Inventors: Chun-An Cheng, Chin-Chih Lai, Yi-Ling Chen, Pei-Jung Hsieh
  • LIGHTING SYSTEM AND DRIVING CIRCUIT THEREOF
    Publication number: 20190380179
    Abstract: A lighting system and a driving circuit thereof are provided. The driving circuit is configured to drive a light emitting device. The driving circuit includes a bulk voltage converter. The bulk voltage converter receives an input voltage and converts the input voltage to generate a driving voltage. The bulk voltage converter includes a snubber circuit, a power switch, and an inductor. The snubber circuit receives the input voltage through a first node and generates a snubber voltage at a second node according to the input voltage. The power switch is turned on or off according to a control signal. The inductor is coupled between the first node and a third node. The driving circuit is coupled to the light emitting device through the first node and the third node and provides the driving voltage to the light emitting device.
    Type: Application
    Filed: September 28, 2018
    Publication date: December 12, 2019
    Applicant: I-SHOU UNIVERSITY
    Inventors: Chun-An Cheng, Chin-Chih Lai, Yi-Ling Chen, Pei-Jung Hsieh