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:
Nov. 25, 2025
Filed:
May. 19, 2023
Regal Beloit America, Inc., Beloit, WI (US);
Michael R. Koller, Columbia City, IN (US);
Ludovic Andre Chretien, Columbia City, 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 a switch configured to provide line frequency power to the electric motor to drive the electric motor at a full speed, and an inverter to provide variable frequency power to the electric motor to drive the electric motor at a variable speed. The controller is configured to determine whether the switch is closed in response to powering up the electric motor and before supplying the variable frequency power to the electric motor from the inverter. The controller is configured to prevent supply of the variable frequency power to the electric motor from the inverter to prevent damage to the inverter based on the determining that the switch is closed and generate an alert notification to notify a user of a fault in the switch.