ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,295, issued on May 6.

"Systems and methods of unwanted harmonic content removal for power conversion" was invented by Robert S. Wrathall (Scotts Valley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are electrical circuits and methods for power factor correction. An example method includes receiving, by converter, an input voltage at a fundamental frequency and generating an output voltage; generating, based on the output voltage, a first measurement signal; subtracting a first reference signal from the first measurement signal to obtain a first error signal; generating an adaptive current sense signal, generating a reference voltag...