The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9059658 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 16, 2015

Filed:

Sep. 02, 2008
Applicants:

Allen Keith Bates, Tucson, AZ (US);

Nhan Xuan Bui, Tucson, AZ (US);

Reed Alan Hancock, Tucson, AZ (US);

Wayne Isami Imaino, San Jose, CA (US);

Daniel James Winarski, Tucson, AZ (US);

Inventors:

Allen Keith Bates, Tucson, AZ (US);

Nhan Xuan Bui, Tucson, AZ (US);

Reed Alan Hancock, Tucson, AZ (US);

Wayne Isami Imaino, San Jose, CA (US);

Daniel James Winarski, Tucson, AZ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/18 (2006.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02P 25/18 (2013.01); H02P 27/08 (2013.01);
Abstract

An apparatus for controlling an electric motor is provided. A plurality of switches is provided for controlling a direction of current through motor coils of the electric motor. A brushless motor control circuit is connected to each of the plurality of switches. Responsive to a request to adjust one of an angular velocity and an angular acceleration of the electric motor, the plurality of switches are activated to place the motor coils in a predetermined configuration to maximize torque or reduce a total back electromotive force (BEMF) from the motor coils.


Find Patent Forward Citations

Bates, Allen. (2015). Increasing tape velocity by dynamic switching (U.S. Patent No. 9059658). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9059658

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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