LED yog cov khoom siv hluav taws xob uas yog resistive thiab me ntsis capacitive ntawm qhov kev sib tshuam. Lawv tsim lub teeb thaum lub zog DC rau pem hauv ntej siv rau lawv. Tus Tsav Tsheb uas tsim cov DC voltage yog tsis muaj linear load. Cov tsav tsheb yog qhov tseem ceeb hauv hluav taws xob DC hloov khoom siv hluav taws xob.
Yuav ua li cas thauj khoom yog LED teeb pom kev zoo?
LEDs yog a nonlinear load thiab tej zaum cov teeb no yuav tsis muaj lub zog hloov pauv hloov. Qhov no txhais tau hais tias tam sim no yuav tsis yog sinusoidal yog li koj yuav muaj qee lub zog reactive ntws. Tej zaum yuav muaj PFC choke ua ntej tus choj rectifier.
Lub teeb LED puas xav tau qhov tseeb polarity?
LEDs yog hluav taws xob polarized thiab tsuas yog ua haujlwm kom raug thaum lawv lub davhlau ya nyob twg zoo (tseem hu ua anode) txuas nrog cov khoom zoo thiab lawv lub davhlau ya nyob twg tsis zoo (tseem hu ua cathode) txuas nrog cov khoom tsis zoo. LED kev sib txuas polarity yuav tsum tau ua nruj me ntsis saib!
Puas yog lub teeb fluorescent capacitive lossis inductive?
fluorescent teeb daim ntawv an inductive loadntawm AC mains mov. Raws li qhov tshwm sim loj kev teeb tsa ntawm cov teeb zoo li no raug kev txom nyem lub zog tsis zoo thiab ua rau muaj qhov poob qis. Ntxiv ib lub capacitor rau txhua lub teeb kho lub zog ua kom nws rov qab los ze rau kev sib sau (1.0).
Lub teeb pom kev zoo li cas?
Cov khoom thauj hauv tsev muaj lub teeb, kiv cua, tub yees, cua sov, TV, lub cev muaj zog me me rau cov dej ntws thiab lwm yam. Feem ntau ntawm cov khoom thauj hauv tsev tsuas yog qee teev thaum nruab hnub (i.e., 24 teev) piv txwv li, teeb pom kev zoo tshwm sim thaum hmo ntuj thiab cov khoom siv hauv tsev tsuas yog ob peb teev xwb.
