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:
Dec. 02, 2025
Filed:
Jun. 13, 2024
Applicant:
Goodrich Corporation, Charlotte, NC (US);
Inventors:
Assignee:
GOODRICH CORPORATION, Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 7/08 (2006.01); H02M 1/08 (2006.01); H02M 7/5395 (2006.01);
U.S. Cl.
CPC ...
H03K 7/08 (2013.01); H02M 1/08 (2013.01); H02M 7/5395 (2013.01);
Abstract
Systems, apparatus, and methods for computing a duty cycle for generating pulse width modulated signals to control switches of an inverter. A measured DC bus voltage is used to perform a search using a lookup table to generate an output value corresponding to the measured DC bus voltage. The output value is hard coded and is proportional to a value approximately inverse to the measured DC bus voltage, or a normalized value thereof. The output value can then be multiplied with one or more reference voltages (e.g., three reference voltages for three phase signals) to generate one or more duty cycles.