ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,509, issued on Dec. 16.

"Electric power converter" was invented by Mostafa Abarzadeh (Montreal, Canada), Simon Caron (Outremont, Canada) and Fadia Sebaaly (Montreal, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A converter with lower passive filter size and increased flying capacitor charging speed during the converter start-up uses a combination of a multi-level power converter circuit having a flying capacitor in which the first switching harmonic cluster is at twice the switching frequency and an integrated double-stage filter designed to allow the flying capacitor to be efficiently balanced and to allow noise from the harmonic clusters ...