Patents by Inventor Hsueh-Cheng Wang

Hsueh-Cheng Wang 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: 8080981
    Abstract: An interleaved-PWM power module system and method for operating the same are disclosed. The power system includes at least two power modules, each of which has a specific ID number. The power module with an extreme value of the specific ID number is set as a master power module and the remaining power modules are set as slave power modules. The master power module sends the sync signal to all of the slave power modules. Each of the slave power modules performs a phase-locking operation with reference to a specific phase offset to generate a frequency switching signal, where the frequency switching signal is synchronized with the sum of the sync signal and the phase offset for each slave power module. The power module outputs the frequency switching signal for PWM signal generation.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: December 20, 2011
    Assignee: Delta Electronics, Inc.
    Inventors: Hsueh-Cheng Wang, Ying-Sung Chang
  • Publication number: 20110110130
    Abstract: An interleaved-PWM power module system and method for operating the same are disclosed. The power system includes at least two power modules, each of which has a specific ID number. The power module with an extreme value of the specific ID number is set as a master power module and the remaining power modules are set as slave power modules. The master power module sends the sync signal to all of the slave power modules. Each of the slave power modules performs a phase-locking operation with reference to a specific phase offset to generate a frequency switching signal, where the frequency switching signal is synchronized with the sum of the sync signal and the phase offset for each slave power module. The power module outputs the frequency switching signal for PWM signal generation.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 12, 2011
    Inventors: Hsueh-Cheng WANG, Ying-Sung Chang