ow tseem ceeb yog DC tswj fais fab mov?
Lub zog hluav taws xob yog lub hauv paus ntawm txhua yam khoom siv hluav taws xob, tsis muaj lub zog hluav taws xob, yuav tsis muaj ntau yam khoom siv hluav taws xob. Vim yog cov yam ntxwv ntawm cov cuab yeej siv hluav taws xob, cov khoom siv hluav taws xob yuav tsum muaj rau lub zog hluav taws xob yuav tsum muab lub zog txuas ntxiv thiab ruaj khov uas ua tau raws li qhov yuav tsum tau ua ntawm cov khoom thauj, thiab feem ntau yuav tsum muaj zog DC ruaj khov. Lub zog hluav taws xob uas muab lub zog DC ruaj khov no yog DC tswj fais fab mov. Raws li lub xeev ua hauj lwm ntawm lub hloov raj, DC tswj fais fab mov yuav muab faib ua ob pawg, linear tswj fais fab mov thiab switching tswj fais fab mov.
