ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,568, issued on Nov. 18, was assigned to Dyson Technologies Ltd. (Wiltshire, Great Britain).
"Drive circuit for a brushless motor" was invented by Stephen Greetham (Gloucester, Great Britain) and Mate Horvat (Swindon, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive circuit for a brushless motor is described. The drive circuit includes a converter for connection to a phase winding of the motor, and a controller. The converter includes a plurality of switches and the controller controls the states of the switches to configure the converter in one of a plurality of configurations. In a first configuration, current is permitted to fl...