Lub cev muaj zog tsis tsim nyog tau tsim los ntawm ib lub tebchaws, tab sis cov kev sib koom tes ntawm kev koom tes ntawm engineers thiab cov kws tshawb fawb los ntawm ntau lub teb chaws.
Xyoo 1949, slovak enras tau tsim thawj tus txhuam hniav ua ntej, uas tau siv lub hauv paus ntawm kev thim rov qab AC tam sim no kom ua tiav kev hloov pauv tsis tau.
Xyoo 1955, D. Harrison thiab lwm tus neeg nyob rau Tebchaws Meskas ua ntej rau kev ua yeeb yam los hloov lub tshuab txhuam hniav, uas cim txog kev yug me nyuam niaj hnub DC lub zog.
In the 1960s, American electrical engineer Terry Lakin invented a three-phase brushless motor with strong magnetic force and high efficiency, which was hailed as a revolutionary breakthrough in the history of motors.
