Patents by Inventor Nora WOLSKE

Nora WOLSKE 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).

  • Controller for EC motor and method thereof
    Patent number: 10056852
    Abstract: Rotation speed control systems for an Electronically Commutated (EC) motor and method for controlling rotation speed of an EC motor are described. An rotation speed control system includes a phase detector for detecting a period, an ON time interval, an OFF time interval, and zero crossing time points of the phase cut AC signal; a voltage regulator for converting the phase cut an AC signal into a DC signal; a controller for generating a compatible waveform to drive the EC motor with a rotation speed instructed by the controller, in accordance with an ON/OFF time ratio determined based on the ON time interval and OFF time interval of the phase cut AC signal; and an EC motor interface, powered by the DC signal, for driving each of a plurality of windings of the EC motor with the compatible waveform.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 21, 2018
    Assignee: Canarm Ltd.
    Inventors: Douglas Matthews, Claude Bouchard, Nora Wolske
  • CONTROLLER FOR EC MOTOR AND METHOD THEREOF
    Publication number: 20170214341
    Abstract: Rotation speed control systems for an Electronically Commutated (EC) motor and method for controlling rotation speed of an EC motor are described. An rotation speed control system includes a phase detector for detecting a period, an ON time interval, an OFF time interval, and zero crossing time points of the phase cut AC signal; a voltage regulator for converting the phase cut an AC signal into a DC signal; a controller for generating a compatible waveform to drive the EC motor with a rotation speed instructed by the controller, in accordance with an ON/OFF time ratio determined based on the ON time interval and OFF time interval of the phase cut AC signal; and an EC motor interface, powered by the DC signal, for driving each of a plurality of windings of the EC motor with the compatible waveform.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 27, 2017
    Applicant: Canarm Ltd.
    Inventors: Douglas MATTHEWS, Claude BOUCHARD, Nora WOLSKE