US Patent Issued to Tula eTechnology on Sept. 22 for "Boosted rotor supply circuit and method for improving pulsed electric machine efficiency" (California Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,478, issued on Sept. 22, was assigned to Tula eTechnology Inc. (San Jose, Calif.).

"Boosted rotor supply circuit and method for improving pulsed electric machine efficiency" was invented by Paul Carvell (Santa Cruz, Calif.) and Babak Mazda (Los Altos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pulsed control of an Externally Excited Synchronous Machines (EESM), including a boost circuit and method for (1) harvesting the field energy stored in rotor winding when the EESM is transitioning to the off state following an on pulses, (2) storing the harvested field energy on a storage device, (3) optionally "topping" up the harvested field en...