Patents by Inventor Kayvan Abbassian

Kayvan Abbassian 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).

  • H-BRIDGE DRIVE CIRCUIT FOR STEP MOTOR CONTROL
    Publication number: 20110241597
    Abstract: A drive circuit for step motors with bifilar windings is provided in which both parallel and series winding configurations for the stator coils are selectable by a motor controller based on the motor speed. For low speeds a series configuration is selected, while for higher speeds a parallel configuration is selected. Dynamic torque is optimized by the selection for more efficient motor operation with less drive current.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Applicant: LIN ENGINEERING
    Inventors: Zhengmao Zhu, Jongwon Kim, Kayvan Abbassian