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 thawj kauj, theem nrab kauj, 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 lub hom phiaj xws li kev nce qib voltage nce lossis nqis, impedance txuam, thiab kev sib cais kev nyab xeeb. Hauv cov tshuab hluav taws xob-txawm hais tias lub kauj txav los ntawm qhov chaw sib nqus los yog qhov chaw sib nqus txav dhau los ntawm cov kauj vab nyob ruaj ruaj- lub zog hluav taws xob (EMF) yog induced nyob rau hauv lub kauj.
Hauv ob qho xwm txheej no, thaum qhov loj ntawm qhov sib nqus flux nws tus kheej tseem nyob tas li, qhov ntau ntawm cov hlau nplaum sib nqus * txuas * nrog lub kauj muaj kev hloov pauv; qhov no yog lub hauv paus ntsiab lus ntawm kev sib nrig sib induction. Lub transformer yog, yog li ntawd, ib tug ntaus ntawv uas siv electromagnetic sib nrig sib induction los hloov voltage, tam sim no, thiab impedance.
