ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,969, issued on Aug. 5, was assigned to Regal Beloit America Inc. (Milwaukee).
"Controller and drive circuit for electric motors" was invented by Ludovic Andre Chretien (Columbia City, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control system for an electric motor in a compressor system includes a processing system configured to control an inverter to supply variable frequency power to the electric motor from the inverter. The processing system is configured to determine when to transition from supplying variable frequency power to supplying line frequency power to the electric motor. The processing system is configured to engage a pressure...