Lub transformer yog ib qho khoom siv uas siv lub hauv paus ntsiab lus ntawm electromagnetic induction los hloov alternating tam sim no (AC) voltage. Nws cov khoom tseem ceeb yog lub hauv paus kauj, lub kauj thib ob, thiab cov tub ntxhais hlau (sib nqus core).
Hauv cov khoom siv hluav taws xob thiab hluav taws xob hluav taws xob, cov khoom siv hluav taws xob feem ntau yog siv rau theem voltage -up/step-down, impedance matching, thiab kev ruaj ntseg cais. Nyob rau hauv lub tshuab hluav taws xob, txawm tias lub kauj txav los ntawm qhov chaw sib nqus los yog qhov chaw sib nqus txav los ntawm lub kauj vab, lub zog hluav taws xob (EMF) raug ntxias hauv lub kauj.
Nyob rau hauv ob qho tib si, tus nqi ntawm qhov sib nqus flux tseem nyob tas li, tab sis tus naj npawb ntawm cov hlau nplaum sib txuas nrog cov coil hloov pauv; qhov no yog lub hauv paus ntsiab lus ntawm kev sib nrig sib induction. Lub transformer yog ib qho khoom siv uas siv hluav taws xob sib nqus induction los hloov voltage, tam sim no, thiab impedance.
