Patents by Inventor Qingyuan Meng

Qingyuan Meng 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).

  • Dielectric barrier discharge lamp system and driving method thereof having relatively better performance in startup and re-startup of dimming
    Patent number: 7888880
    Abstract: The configurations of a dielectric barrier discharge lamp (DBDL) system and the driving method thereof are provided in the present invention. The proposed DBDL system includes a driver circuit receiving a DC input voltage and generating an AC output voltage, including a transformer having a primary winding and a secondary winding, a dielectric barrier discharge lamp coupled to the secondary winding and a burst mode dimming circuit including a first switch. In which, the first switch is turned on when the first switch is starting such that the first switch and the primary winding forms a conducting path so as to apply a driving high voltage to the DBDEL and turn off the first switch after the DBDL is breaking through by the driving high voltage such that a driving normal voltage is applied to the DBDL.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: February 15, 2011
    Assignee: Delta Electronics, Inc.
    Inventors: Qiukai Huang, Qingyuan Meng, Jianping Ying, Jin-Chyuan Hung, Yui Shin Fran
  • DIELECTRIC BARRIER DISCHARGE LAMP SYSTEM AND DRIVING METHOD THEREOF HAVING RELATIVELY BETTER PERFORMANCE IN STARTUP AND RE-STARTUP OF DIMMING
    Publication number: 20080303448
    Abstract: The configurations of a dielectric barrier discharge lamp (DBDL) system and the driving method thereof are provided in the present invention. The proposed DBDL system includes a driver circuit receiving a DC input voltage and generating an AC output voltage, including a transformer having a primary winding and a secondary winding, a dielectric barrier discharge lamp coupled to the secondary winding and a burst mode dimming circuit including a first switch. In which, the first switch is turned on when the first switch is starting such that the first switch and the primary winding forms a conducting path so as to apply a driving high voltage to the DBDEL and turn off the first switch after the DBDL is breaking through by the driving high voltage such that a driving normal voltage is applied to the DBDL.
    Type: Application
    Filed: October 25, 2007
    Publication date: December 11, 2008
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Qiukai Huang, Qingyuan Meng, Jianping Ying, Jin-Chyuan Hung, Yui Shin Fran