Lub zog transformer siv ntau npaum li cas?
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub transformer yog ua raws li lub hauv paus ntsiab lus ntawm electromagnetic induction. Nws tsuas yog muaj lub hauv paus kauj, lub kauj theem ob thiab cov tub ntxhais hlau (magnetic core). Thaum thawj kauj yog energised, ib tug alternating magnetic teb yog generated nyob rau hauv lub hlau core. Qhov chaw sib nqus sib nqus no ua rau muaj qhov cuam tshuam ntawm electromotive quab yuam nyob rau hauv lub coil thib ob, uas ua rau muaj kev hloov pauv ntawm qhov hluav taws xob.
Tshwj xeeb, thaum qhov tam sim no nyob rau hauv thawj kauj sib txawv, ib qho kev sib nqus sib nqus yog tsim nyob rau hauv cov tub ntxhais hlau. Qhov kev sib nqus sib nqus sib nqus no txiav los ntawm cov coil thib ob, uas ua rau muaj kev cuam tshuam electromotive quab yuam nyob rau hauv lub coil thib ob. Raws li Faraday txoj cai ntawm electromagnetic induction, qhov loj ntawm induced electromotive quab yuam yog proportional rau tus nqi ntawm kev hloov ntawm magnetic teb thiab proportional rau tus naj npawb ntawm lem nyob rau hauv lub kauj. Los ntawm kev kho cov lem piv ntawm lub hauv paus thiab theem nrab coils, qhov voltage yuav raug tsa los yog qis dua.
Ntxiv nrog rau qhov hloov pauv hluav taws xob, lub tshuab hloov pauv kuj tseem muaj cov haujlwm ntawm kev hloov pauv tam sim no, kev hloov pauv impedance, kev sib cais thiab kev tswj hwm qhov hluav taws xob. Nws ua lub luag haujlwm tseem ceeb hauv lub zog hluav taws xob, uas tuaj yeem ua kom muaj kev sib kis ruaj khov thiab kev faib hluav taws xob.
Cov ntaub ntawv saum toj no tsuas yog siv rau kev siv xwb, yog tias koj tseem muaj lus nug, nws raug nquahu kom sab laj nrog kws tshaj lij.
