Patents by Inventor Jyun-Jhe Jhang

Jyun-Jhe Jhang 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).

  • Power device and operation method thereof
    Patent number: 11545891
    Abstract: A power device includes a power factor corrector, an auxiliary capacitor, a switching device, an auxiliary boost circuit, a controller and a voltage conversion device. The switching device has a first end electrically connected to the output end of the power factor corrector, and a second end electrically connected to one end of the auxiliary capacitor. An output end of the auxiliary boost circuit is electrically connected to the output end of the power factor corrector, an input end of the auxiliary boost circuit is electrically connected to a middle end of the switching device, and a ground end of the auxiliary boost circuit is electrically connected to another end of the auxiliary capacitor. The controller is electrically connected to the switching device and the auxiliary boost circuit. The input end of the voltage conversion device is electrically connected to the output end of the power factor corrector.
    Type: Grant
    Filed: August 8, 2021
    Date of Patent: January 3, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chien-An Lai, Jyun-Jhe Jhang, Chien-Yao Liao, Ping-Sheng Wu, I Chen, Chang-Yuan Hsu
  • POWER DEVICE AND OPERATION METHOD THEREOF
    Publication number: 20220173653
    Abstract: A power device includes a power factor corrector, an auxiliary capacitor, a switching device, an auxiliary boost circuit, a controller and a voltage conversion device. The switching device has a first end electrically connected to the output end of the power factor corrector, and a second end electrically connected to one end of the auxiliary capacitor. An output end of the auxiliary boost circuit is electrically connected to the output end of the power factor corrector, an input end of the auxiliary boost circuit is electrically connected to a middle end of the switching device, and a ground end of the auxiliary boost circuit is electrically connected to another end of the auxiliary capacitor. The controller is electrically connected to the switching device and the auxiliary boost circuit. The input end of the voltage conversion device is electrically connected to the output end of the power factor corrector.
    Type: Application
    Filed: August 8, 2021
    Publication date: June 2, 2022
    Inventors: Chien-An LAI, Jyun-Jhe Jhang, Chien-Yao Liao, Ping-Sheng Wu, I Chen, Chang-Yuan Hsu