Patents by Inventor Sufang Gao

Sufang Gao 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: 10044301
    Abstract: Disclosed are exemplary embodiments of systems and methods for providing a motor interface compatible with multiple motor types. In an exemplary embodiment, a motor control interface circuit generally includes a solid-state switching device controllable to switch a DC voltage from a DC voltage source to provide a signal at a tap of a motor. A normalizing circuit is provided between the DC voltage source and the tap, the normalizing circuit having a clamping device configured to limit a voltage of the signal provided at the tap to an interface voltage level predefined for driving a plurality of motor types having different interface voltage ranges.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 7, 2018
    Assignee: Emerson Electric Co.
    Inventor: Sufang Gao
  • Publication number: 20180091071
    Abstract: Disclosed are exemplary embodiments of systems and methods for providing a motor interface compatible with multiple motor types. In an exemplary embodiment, a motor control interface circuit generally includes a solid-state switching device controllable to switch a DC voltage from a DC voltage source to provide a signal at a tap of a motor. A normalizing circuit is provided between the DC voltage source and the tap, the normalizing circuit having a clamping device configured to limit a voltage of the signal provided at the tap to an interface voltage level predefined for driving a plurality of motor types having different interface voltage ranges.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 29, 2018
    Inventor: Sufang Gao