ALEXANDRIA, Va., July 16 -- United States Patent no. 12,362,682, issued on July 15, was assigned to Lenze Swiss AG (Romanshorn, Switzerland).
"Frequency converter with ground fault detection" was invented by Andreas Burgermeister (Mauren, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A frequency converter has a first intermediate circuit arm on which a positive intermediate circuit potential is present during operation, a second intermediate circuit arm on which a negative intermediate circuit potential is present during operation, and an inverter having first and second input terminals. The inverter has a number of bridge arms, each of which has an upper and a lower semiconductor switching devi...