1. Lub zog hluav taws xob tas li yog dab tsi
Nws txhais tau hais tias thaum lub input voltage nyob rau hauv qhov kev teev tseg thiab lub load tam sim no hloov nyob rau hauv lub rated range, cov zis voltage tseem nyob twj ywm.
2. Cov khoom siv hluav taws xob tsis tu ncua yog dab tsi
Nws txhais tau hais tias qhov input voltage yog nyob rau hauv qhov kev teev tseg, cov zis tam sim no yog tas li, tab sis cov zis voltage sib txawv nyob rau hauv ib tug tej yam ntau yam nrog rau qhov loj ntawm lub load.
3. Nyob rau hauv cov xwm txheej dab tsi yuav tsum tau xaiv lub zog hluav taws xob tas li, thiab nyob rau hauv cov xwm txheej twg yuav tsum tau xaiv lub zog hluav taws xob tas li?
A. Cov khoom siv hluav taws xob tsis tu ncua thiab cov khoom siv hluav taws xob tas li tuaj yeem siv rau hauv qhov chaw uas nws ib txwm ci. Piv nrog rau kev siv cov khoom siv hluav taws xob tas li tam sim no, qhov ci ntsa iab zoo dua li qhov tsis tu ncua ntawm lub zog hluav taws xob.
B. Nws yog qhov tsim nyog los siv cov khoom siv hluav taws xob tas li thaum nws siv nyob rau hauv qhov chaw ntawm kev hloov maj mam hloov thiab luam theej duab.
4. Dab tsi yog qhov yuav tsum tau ua rau pawg LED teeb pom kev zoo thaum siv cov khoom siv hluav taws xob tas li?
Cov zis hluav taws xob ntawm qhov hluav taws xob tsis tu ncua yuav tsum ua raws li qhov ua haujlwm voltage ntawm pawg LED teeb. Piv txwv li, qhov tso zis hluav taws xob ntawm qhov hluav taws xob tas li yog 12V, qhov ua haujlwm voltage ntawm txhua ceg ntawm LED lub teeb yuav tsum yog 12V, thiab tus naj npawb ntawm ceg ntawm LED module yuav tsum yog 12V. Nws tuaj yeem ua rau arbitrarily nce lossis txo qis hauv qhov ntau ntawm qhov tso zis ntau tshaj tam sim no. Vim qhov sib txawv ntawm LED conduction voltage poob, qhov voltage poob ntawm txhua ceg yuav deviate, uas yuav ua rau tam sim no ntawm txhua ceg sib txawv. Txhua ceg yuav tsum tau txuas nrog nyob rau hauv series nrog ib tug voltage divider resistor los yog lwm yam tam sim no limiting ntsuas.
5. Dab tsi yog qhov yuav tsum tau ua rau cov pab pawg LED teeb thaum siv cov khoom siv hluav taws xob tas li?
Cov zis tam sim no ntawm cov khoom siv hluav taws xob tas li yuav tsum ua raws li cov txiaj ntsig ntawm cov khoom siv tam sim no ntawm cov ceg ntoo ntawm LED teeb. Tus naj npawb ntawm LEDs ntawm ceg tuaj yeem nce lossis txo qis hauv qhov tso zis voltage ntau. Piv txwv li, cov zis tam sim no ntawm cov khoom siv hluav taws xob tas li yog 700mA thiab cov zis hluav taws xob yog 2.5V 12V; Kev ua haujlwm tam sim no ntawm txhua ceg ntawm LED teeb yog 350mA, thiab qhov ua haujlwm ntawm ib lub teeb ci LED yog 3.2, tom qab ntawd tus naj npawb ntawm cov ceg ntoo ntawm LED yog 2, thiab tus naj npawb ntawm LED teeb ntawm ceg yog nyob rau hauv thaj tsam ntawm 14 nce. los yog txo.
It is best to drive a single-channel LED light. If you drive multiple channels, one of the channels will be open, and the current will be added to other branches, causing the LED to overcurrent and burn out the LED. In order to avoid this problem, an equalization circuit is added to the LED light, for example: a certain LED burns out, and the bypassed components are automatically short-circuited, so that other LEDs work normally.
6. Dab tsi yog efficiency?
Vim lub zog hloov dua siab tshiab thiab hloov cov txheej txheem, ntau yam poob yog inevitably generated. Yog li ntawd, lub hwj chim tso zis yog ib txwm me dua lub zog input. Piv txwv li, thaum cov khoom siv hluav taws xob ua haujlwm, ntau yam khoom siv thiab cov kab muaj kev tiv thaiv, uas yuav tsim kom muaj cua sov tom qab muaj zog. Qhov no ntawm cov cua sov yog lub zog poob, yog li lub zog tso zis yog ib txwm tsawg dua lub zog input. Txhawm rau ntsuas qhov degree ntawm lub zog poob hauv cov txheej txheem ntawm kev hloov pauv thiab kev sib kis, peb txhais qhov piv ntawm cov zis hluav taws xob ntawm cov khoom siv hluav taws xob rau cov khoom siv hluav taws xob raws li qhov ua tau zoo ntawm cov khoom siv hluav taws xob. Kev ua tau zoo yog qhia los ntawm tsab ntawv h.
Lub siab -cov khoom siv hluav taws xob ua tau zoo tuaj yeem txuag hluav taws xob, thiab qhov siab - lub zog hluav taws xob nws tus kheej muaj qhov tsim hluav taws xob tsawg thiab qhov kub tsis tshua muaj siab, uas tuaj yeem ua rau lub neej ua haujlwm ntev.
7. Dab tsi yog ripple
Ripple hais txog AC tivthaiv uas tsis yog DC tivthaiv ntawm DC tso zis voltage. Feem ntau qhov zaus ntawm AC feem ntau yog ntau dua 100Hz lossis ntau dua, txawm tias kaum tawm MHz, thiab cov ripple tsis tuaj yeem raug tshem tawm.
10. Puas yog qhov ripple cuam tshuam rau lub neej ntawm LED?
Kev cuam tshuam lub neej ntawm LED yog nyob ntawm qhov loj ntawm lub ripple thiab tus naj npawb ntawm txhua ceg. Thaum tus naj npawb ntawm LEDs ntawm ceg tsis hloov pauv, qhov loj dua lub ripple, lub neej ntawm LED yuav luv dua; Thaum lub ripple tsis hloov, qhov ntau ntawm cov LEDs ntawm cov ceg, qhov me me ntawm cov ripple ntawm LED, thiab lub neej ntev dua. ntev dua.
11. Puas yog qhov ripple cuam tshuam rau lub neej ntawm LED?
Kev cuam tshuam lub neej ntawm LED yog nyob ntawm qhov loj ntawm lub ripple thiab tus naj npawb ntawm txhua ceg. Thaum tus naj npawb ntawm LEDs ntawm ceg tsis hloov pauv, qhov loj dua lub ripple, lub neej ntawm LED yuav luv dua; Thaum lub ripple tsis hloov, qhov ntau ntawm cov LEDs ntawm cov ceg, qhov me me ntawm cov ripple ntawm LED, thiab lub neej ntev dua. ntev dua.
Piv txwv li: qhov tso zis voltage ntawm lub hwj chim mov yog 12V, lub ncov - mus rau - ncov tus nqi ntawm lub ripple yog 500Mv, thiab tus naj npawb ntawm LEDs ntawm txhua ceg yog 4
1. Under the condition of no ripple, the voltage of each LED is 12÷4=3V
2. After superimposing the ripple, the voltage of each LED is (12V÷0.5V)÷4=3.12V
12. Qhov ntsuas kub qis yuav cuam tshuam rau qhov pib- lub sijhawm ua haujlwm ntawm lub zog hluav taws xob thiab yuav tsis ua haujlwm zoo. Qhov ntsuas kub qis dua, qhov pom tseeb dua qhov cuam tshuam ntawm cov khoom siv hluav taws xob. Txawm hais tias cov khoom siv hluav taws xob tuaj yeem hloov mus rau qhov kub thiab txias ua haujlwm ib puag ncig yog nyob ntawm qhov tsim nyog ntawm kev tsim cov khoom siv hluav taws xob sab hauv ntawm lub zog hluav taws xob thiab qhov tsim nyog parameter sib piv ntawm cov khoom. Kev tsim hluav taws xob tsim hluav taws xob yog tsim nyog, thiab cov khoom tsis sib haum yog tsim nyog, thiab muaj peev xwm hloov mus rau qhov kub thiab txias yog qhov zoo dua. ,
13. Lub zog
Cov hauj lwm ua ib lub sij hawm yog hu ua lub zog. Lub zog hluav taws xob feem ntau tuaj yeem muab faib ua peb hom: lub zog pom tseeb, lub zog nquag thiab lub zog reactive.
14. Lub hwj chim pom tseeb yog dab tsi?
Hauv AC Circuit Court nrog kev tiv thaiv thiab inductance, cov khoom ntawm rms tus nqi ntawm qhov hluav taws xob thiab tus nqi rms ntawm tam sim no yog hu ua lub zog pom tseeb. Lub zog pom tseeb=lub zog nquag ntxiv rau lub zog reactive, uas yog ntsuas los ntawm ammeters, voltmeters thiab ohmmeters uas feem ntau siv hauv kev xyaum. , VA yog cov tsis muaj zog hauv kev pom meej.
Lub zog muaj zog
----Lub zog hluav taws xob yog siv los ua haujlwm thiab siv tau, thiab lawv tau hloov mus ua lub zog hluav taws xob, lub teeb lub zog, lub zog siv hluav taws xob lossis tshuaj lom neeg, thiab lwm yam, hu ua lub zog ua haujlwm; kuj hu ua nruab nrab hwj chim. Lub zog tam sim no ntawm alternating tam sim no tsis yog tus nqi tas li. Qhov nruab nrab tus nqi ntawm lub hwj chim nyob rau hauv ib lub voj voog yog hu ua active zog. Nws hais txog lub zog siv los ntawm qhov tsis kam ntawm lub voj voog, sawv cev los ntawm tsab ntawv P, hauv watts.
16. Lub zog reactive yog dab tsi?
Nyob rau hauv ib lub voj voog nrog ib qho inductance (los yog capacitance), lub inductance (capacitance) hloov lub zog ntawm lub hwj huam mov mus rau hauv ib qho chaw sib nqus (los yog hluav taws xob) rau ib nrab ntawm lub voj voog, thiab khaws lub zog ntawm cov hlau nplaum (los yog hluav taws xob) nyob rau hauv lwm ib nrab voj voog. Hluav taws xob teb) lub zog xa rov qab mus rau qhov chaw siv hluav taws xob. Lawv tsuas yog pauv lub zog nrog lub zog hluav taws xob, thiab tsis siv lub zog tiag tiag. Peb hu lub amplitude tus nqi ntawm tus nqi ntawm lub hwj chim qhov chaw pauv lub zog tsis muaj hwj chim, uas yog sawv cev los ntawm tsab ntawv Q, thiab chav tsev yog tsis muaj.
If you are interested in our products, please visit www.hkram.com to have more information.