Patents by Inventor Shih-Chiang WAN

Shih-Chiang WAN 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).

  • Circuit with both functions of wireless power transmitter and wireless power receiver and device thereof
    Patent number: 9887740
    Abstract: A device with both functions of wireless power transmitter and wireless power receiver and a circuit thereof are provided in the present invention. The device with both functions of wireless power transmitter and wireless power receiver and the circuit thereof use the same winding for performing the energy output and the energy receiving function. In addition, in order to use the same winding for performing the energy output and the energy receiving function, the present invention adopts full bridge topology. However, two lower switches are controlled by the resonant circuit when the device is in the energy receiving mode. The upper switches are not only for receiving the power voltage, but also for rectifying the energy received from the winding to output to the device with both functions of wireless power transmitter and wireless power receiver.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: February 6, 2018
    Assignee: Generalplus Technology Inc.
    Inventors: Chia-Sheng Chen, Down Xu Chuang, Shih-Chiang Wan
  • CIRCUIT WITH BOTH FUNCTIONS OF WIRELESS POWER TRANSMITTER AND WIRELESS POWER RECEIVER AND DEVICE THEREOF
    Publication number: 20150280792
    Abstract: A device with both functions of wireless power transmitter and wireless power receiver and a circuit thereof are provided in the present invention. The device with both functions of wireless power transmitter and wireless power receiver and the circuit thereof use the same winding for performing the energy output and the energy receiving function. In addition, in order to use the same winding for performing the energy output and the energy receiving function, the present invention adopts full bridge topology. However, two lower switches are controlled by the resonant circuit when the device is in the energy receiving mode. The upper switches are not only for receiving the power voltage, but also for rectifying the energy received from the winding to output to the device with both functions of wireless power transmitter and wireless power receiver.
    Type: Application
    Filed: March 16, 2015
    Publication date: October 1, 2015
    Inventors: Chia-Sheng CHEN, Down Xu CHUANG, Shih-Chiang WAN