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:
Jan. 13, 2026
Filed:
May. 24, 2023
Regal Beloit America, Inc., Beloit, WI (US);
MD Naim Miah, Fort Wayne, IN (US);
Michael R. Koller, Columbia City, IN (US);
Ludovic Andre Chretien, Columbia City, IN (US);
Mehrzad Mohammadi Bijaieh, Fort Wayne, IN (US);
Regal Beloit America, Inc., Milwaukee, WI (US);
Abstract
A system including an electric motor of a compressor system and a controller is disclosed. The electric motor includes an inverter and a contactor to operate the electric motor at variable frequency power and line frequency power, respectively. The controller is configured to determine that the electric motor needs to be operated using the line frequency power instead of the variable frequency power in accordance with a load condition on the system. The controller is configured to determine a time to generate a signal to close the contactor by energizing a coil of the contactor, and initiate transition of the electric motor to operate using the line frequency power instead of the variable frequency power by applying the signal to close the contactor at the determined time.