Patents by Inventor Chengyong QIN

Chengyong QIN 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).

  • Electronic transformer and a microwave cooking appliance
    Patent number: 12027987
    Abstract: An electronic transformer and a microwave cooking appliance. The electronic transformer includes a rectifier device, a transformer, a switch device, and a control device. The rectifier device is connected to an alternating current source; the transformer is connected to the rectifier device; the switch device is configured to provide an on/off signal to the transformer; the control device is connected to the switch device; the control device is configured to generate a control signal according to preset power and provide the control signal to the switch device to control the switching frequency of the switch device.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: July 2, 2024
    Assignees: GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD., MIDEA GROUP CO., LTD.
    Inventors: Chengyong Qin, Qinghai Li, Nianzhong Zheng, Shinichi Masuda, Yunxiang Zhang, Junliang Ai
  • ELECTRONIC TRANSFORMER AND A MICROWAVE COOKING APPLIANCE
    Publication number: 20210242794
    Abstract: An electronic transformer and a microwave cooking appliance. The electronic transformer comprises a rectifier device, a transformer, a switch device, and a control device. The rectifier device is connected to an alternating current source; the transformer is connected to the rectifier device; the switch device is configured to provide an on/off signal to the transformer; the control device is connected to the switch device; the control device is configured to generate a control signal according to preset power and provide the control signal to the switch device to control the switching frequency of the switch device.
    Type: Application
    Filed: June 14, 2018
    Publication date: August 5, 2021
    Inventors: Chengyong QIN, Qinghai LI, Nianzhong ZHENG, Shinichi MASUDA, Yunxiang ZHANG, Junliang AI