US Patent Issued to Rampx Holdings on June 16 for "Dual stage AC to AC electrical power converters" (Canadian Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,658,814, issued on June 16, was assigned to Rampx Holdings Inc. (Coquitlam, Canada).

"Dual stage AC to AC electrical power converters" was invented by Jiacheng Wang (Coquitlam, Canada) and Shuai Wang (Abbotsford, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosed family of electrical power converters consists of two multiphase semiconductor conversion stages to accomplish variable voltage and variable frequency (VVVF) AC-AC power conversion. A middle filter network is positioned between the two conversion stages to absorb high-frequency harmonic currents produced by converter switching and to provide a freewheel path for inductive outpu...