ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,483, issued on Sept. 22, was assigned to INNER ENERGY TECHNOLOGY Co. LTD. (Taoyuan, Taiwan).
"AC-to-DC converter and variable-frequency drive" was invented by Hao-Ming Chen (Taoyuan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An AC-to-DC converter adapted to receive an AC input voltage includes an energy storage element, a plurality of SCRs, and a first control unit. The energy storage element is a supercapacitor or a lithium-ion capacitor. The SCRs are electrically connected to each other to form a full-bridge rectifier that is disposed to receive the AC input voltage, and are electrically connected to the energy storage element. T...