PF lub zog qhov tseem ceeb ntawm LED raj yog dab tsi?
Lub raj xa hluav taws xob LED yog ib qho tseem ceeb heev hauv lub raj, tseem hu ua tus tsav tsheb. Qhov zoo ntawm lub zog siv ncaj qha cuam tshuam rau kev pab lub neej ntawm LED raj. Yog tias lub raj LED piv rau tib neeg, tom qab ntawv lub zog yog tib neeg lub siab. Nws tuaj yeem pom qhov tseem ceeb ntawm lub zog siv hluav taws xob, yog li lub zog siv hluav taws xob tseem hu ua tus ntsuj plig ntawm cov raj LED los ntawm cov neeg lag luam sab hauv. Ib qho ntawm qhov ntsuas tsis raug hu ua qhov muaj zog lossis PF tus nqi. Qhov tseem ceeb ntawm kev siv fais fab yog dab tsi?
Lub zog muaj nuj nqi: Lub zog hluav taws xob yog tus nqi cosine ntawm theem sib txawv ntawm qhov hluav taws xob thiab tam sim no. Vim tias ob qho tam sim no thiab qhov hluav taws xob yog cov duab yoj, ib qho yog kab sine thiab lwm qhov yog daim duab cosine; vim tias ob daim duab kab duab sib txawv ntawm 1/4 lub sijhawm (piv txwv li: 90 degrees), tus nqi PF tau tsim. Txhawm rau txhawm rau nce tus nqi PF, nws yog qhov tsim nyog Kev hloov kho hluav taws xob tau ntxiv rau cov khoom siv hluav taws xob, yog li tus nqi ntawm cov khoom siv hluav taws xob nrog tus nqi PF siab yog qhov siab dua. Tus nqi PF yam tsis muaj PF hloov kho Circuit yog feem ntau nyob ib puag ncig 0.6, thiab PF tus nqi nrog PF Circuit tuaj yeem pib mus txog ib puag ncig 0.9 lossis siab dua. Dab tsi yog qhov ua tau zoo tshwj xeeb hauv coj cov teeb roj fluorescent? Saib lub ntsuas hluav taws xob, nyob hauv tib lub zog, PF tus nqi siab, kev siv tam sim no tsawg, ntawm qhov tsis sib xws, PF tus nqi qis, kev siv tam sim no siab. Qhov no txhais tau tias tus nqi PF tseem yog qhov ntsuas kev txuag hluav taws xob. Qee lub raj LED pheej yig nrog lub zog qis dua 0.5, peb hu nws tsis muaj PF. Yog lawm, lub zog txuag hluav taws xob yuav raug txo nqi. Thaum PF tus nqi qis, nws yuav tsim cov phiaj hluav taws xob ntawm tag nrho cov khoom siv hluav taws xob. Pollution, thaum PF tus nqi qis, kev siv hluav taws xob los ntawm cov phiaj hluav taws xob los ntawm cov cuab yeej hluav taws xob tau qis dua. Yog li ntawd, lub xeev muaj PF tus nqi xav tau rau qee yam khoom siv hluav taws xob muaj zog.
