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.:
Date of Patent:
Jul. 18, 2023
Filed:
Dec. 27, 2019
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Rajan Lakshmi Narasimha, Dallas, TX (US);
David Patrick Magee, Allen, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 5/00 (2006.01); H02P 6/15 (2016.01); H02P 6/20 (2016.01);
U.S. Cl.
CPC ...
H02P 6/157 (2016.02); H02P 6/20 (2013.01); H02P 2209/03 (2013.01); H02P 2209/07 (2013.01);
Abstract
Systems and methods for sensorless trapezoidal control of brushless DC motors provide effective high-torque startup and low speed operation without the use of Hall effect sensors or encoders during motor operation. The systems and methods also provide the ability to boost signal-to-noise ratio for motor startup and low speed operation via an augmenting supply voltage. Sampling architectures and current-dependent inductance modeling architectures for the control systems are also described.