ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,167, issued on Sept. 9, was assigned to POWER INTEGRATIONS INC. (San Jose, Calif.).
"Auxiliary power supplies using motor winding inductance" was invented by David Michael Hugh Matthews (Los Gatos, Calif.) and William Michael Polivka (Campbell, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A motor driver couples to an auxiliary power supply and to a motor having a winding. The motor driver comprises a switching circuit that has an auxiliary node coupled to the auxiliary power supply and a winding node coupled to the winding. The switching circuit is configured to store energy in the inductance of the motor winding and to deliver energy the ...