Patents by Inventor Shengpei WANG

Shengpei 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).

  • Motor drive device
    Patent number: 11050367
    Abstract: A long-life motor driving device is realized. A motor driving device (11) includes: a motor driving circuit (3) configured to supply an alternating electric current to a motor (2); and a dynamic braking circuit (4). The dynamic braking circuit includes: a mechanical switch (SW2) configured to cause a short circuit between windings corresponding to respective two phases; a semiconductor switch (SW1) connected to the mechanical switch in parallel and configured to cause a short circuit between the windings corresponding to the respective two phases; and a first impedance circuit (Z1) connected to the semiconductor switch in series.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: June 29, 2021
    Assignee: OMRON CORPORATION
    Inventor: Shengpei Wang
  • MOTOR DRIVE DEVICE
    Publication number: 20210067065
    Abstract: A long-life motor driving device is realized. A motor driving device (11) includes: a motor driving circuit (3) configured to supply an alternating electric current to a motor (2); and a dynamic braking circuit (4). The dynamic braking circuit includes: a mechanical switch (SW2) configured to cause a short circuit between windings corresponding to respective two phases; a semiconductor switch (SW1) connected to the mechanical switch in parallel and configured to cause a short circuit between the windings corresponding to the respective two phases; and a first impedance circuit (Z1) connected to the semiconductor switch in series.
    Type: Application
    Filed: October 5, 2018
    Publication date: March 4, 2021
    Applicant: OMRON Corporation
    Inventor: Shengpei WANG