ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,940, issued on March 11, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).
"Motor" was invented by Mitsuhiro Sakamoto (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A motor including a first terminal and a second terminal to which a single-phase AC is input includes a third terminal, an AC/DC converter that converts a single-phase AC into a DC, an inverter that is PWM-controlled by a PWM signal to convert the DC into a three-phase AC, a controller that outputs a PWM signal to the inverter, and a detection circuit connected to the third terminal, in which the detection circuit outputs any one of a firs...