Digital Isolators Vs. Tsob Ntoo Tsob Ntoo Technology: Leej Twg Yog Tus Tshiab Nyiam Rau Kev Nyab Xeeb Circuit Court?

Hauv cov khoom siv hluav taws xob, cov khoom siv hluav taws xob ua haujlwm ntawm cov hluav taws xob sib txawv zoo li cov neeg nyob sib ze nyob hauv tib lub tsev tab sis tsis muaj kev cuam tshuam nrog ib leeg. Txhawm rau pab kom lawv "sib tham" kom nyab xeeb, kev siv tshuab cais tawm yog xav tau los pab. Niaj hnub no, kev sib tw ntawmdigital isolatorsthiab kev siv tshuab cais tawm ib txwm muaj zuj zus. Leej twg tiag tiag muaj lub siab tawv? Cia peb tshawb nrhiav qhov no los ntawm cov hauv qab no.

1. Cov Ntsiab Cai Ua Haujlwm: Sib txawv "txoj kev sib txuas lus" sib txawv heev

Tsoos Technology Isolation: Ntawm cov txheej txheem ib txwm siv, optocoupler yog qhov paub tshaj plaws. Nws zoo ib yam li siv "flashlight" thiab "light-sensitive eye" kom dhau cov lus-LED emits lub teeb, thiab phototransistor tau txais cov teeb liab kho qhov muag kom ua tiav kev sib cais ntawm circuits. Txawm li cas los xij, txoj kev no muaj qhov teeb meem loj. Ib yam li lub teeb nyem lub teeb tsis muaj zog thaum lub sij hawm, LED degrades maj mam, ua rau cov teeb liab tsis ruaj khov. Tsis tas li ntawd, qhov ceev ntawm optical teeb liab kis tau tus mob kuj qeeb. Thaum ceev "cov lus" yuav tsum tau xa, nws yooj yim ua rau qeeb.

Digital Isolators: Cov kev rho tawm digital siv cov thev naus laus zis ntau dua semiconductor, xws li sib nqus coupling thiab capacitive coupling. Sib nqus coupling yog zoo li cov ntaub ntawv dhau los nrog "cov hlau nplaum me me," hloov cov teeb liab mus rau hauv magnetic teb pulses ntawm nti -scale transformers uas tuaj yeem hla tau sai txawm tias los ntawm kev thaiv thaiv. Capacitive coupling yog zoo li modulating signals nrog "me me capacitors," siv siab -frequency signals kom sai "hu tawm." Cov txheej txheem no tawg dawb los ntawm cov kev txwv ntawm cov teeb liab kho qhov muag, ua rau cov teeb liab kis tau yooj yim thiab ruaj khov.

2. Kev Ua Yeeb Yam Ua Yeeb Yam: Ib Nrab "Kev Sib Tw ntawm Kev Muaj Peev Xwm"

Ceev: Lub teeb liab kis tau tus mob ceev ntawm cov tsoos optocouplers zoo li caij tsheb kauj vab, muaj peev xwm hloov tau ntau tshaj 1 lab cov ntaub ntawv ib ob. Hauv cov xwm txheej uas xav tau cov lus teb sai, xws li lub tsheb uas tsis muaj kev tswj hwm tau txais cov teeb liab sensor, nws tsuas tuaj yeem khaws tsis tau. Hauv qhov sib piv, cov kev cais tawm digital zoo li kev siv lub tsheb ciav hlau siab - ceev, ua tiav kev sib kis ceev mus txog 150 lab cov khoom ib ob, nrog lub sij hawm tshuaj tiv thaiv sai li 32 nanoseconds, yooj yim tuav ntau yam xwm txheej ceev.

3. Kev siv hluav taws xob

Traditional optocouplers xav kom lawv cov LEDs tas li "rau" xa cov lus, siv lub zog loj. Lub zog noj ib channel yog sib npaug rau illuminating 50 me me hlaws LED ib txhij. Hauv cov tshuab xws li kev lag luam automation xav tau ntau txoj hauv kev, nws zoo li muaj ib pawg ntawm cov teeb pom kev zoo ntawm - tsis yog lub hwj chim nkaus xwb - tshaib plab tab sis kuj ua rau muaj cua sov. Digital isolators tau ntse dua, "ua haujlwm" tsuas yog thaum hloov pauv. Lawv qhov nruab nrab siv hluav taws xob txo qis li ntawm 90% piv rau cov khoom siv optocouplers, ua rau lawv tshwj xeeb tshaj yog haum rau cov khoom siv roj teeb lub neej, xws li tsheb fais fab thiab cov khoom siv hnav.

4. Durability

LED nyob rau hauv ib txwm optocoupler muaj hnub nyoog dhau sij hawm, zoo li lub teeb qhov muag thaum kawg ua tsis tiav, nrog rau qhov nruab nrab lub neej tsuas yog li 10 xyoo-txawm luv dua hauv cov xwm txheej nquag siv. Digital isolators tsis yooj yim hnav - tawm cov khoom. Lawv zoo li "khoom khov ntawm cov hlau," khav theeb Lub Sijhawm Nruab Nrab Nruab Nrab (MTBF) ntau tshaj 1 lab teev thiab tuaj yeem ua haujlwm ruaj khov txawm tias nyob hauv qhov kub thiab txias, ua rau lawv muaj kev ntseeg siab dua li cov khoom siv optocouplers.

5. Daim Ntawv Thov: Txhua Qhov Qhia Nws Lub Zog

Ib txwm cais tawm Technology: Vim tias qeeb qeeb thiab siv zog ntau dua, tam sim no cov khoom siv optocouplers feem ntau yog siv hauv cov kab hluav taws xob yooj yim nrog cov kev xav tau qis dua, xws li cov laus dua, qis- cov khoom siv hluav taws xob uas xav tau kev sib kis ceev thiab kev ruaj ntseg tsis siab li.

Digital Isolators:

Lub Tsheb Hluav Taws Xob: Hauv Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob (BMS) ntawm lub tsheb hluav taws xob, cov tshuab hluav taws xob digital tuaj yeem cais cov cim ntawm 400V siab -voltage roj teeb thiab 12V qis-voltage tswj qhov system. Qhov no ua kom muaj kev sib kis ntawm cov ntaub ntawv roj teeb kom raug thaum tiv thaiv qhov hluav taws xob siab los ntawm "wandering" thiab ua rau muaj kev phom sij.

Industrial Automation: Lub servo tswj systems ntawm industrial robots yuav tsum tau ua ntau yam siab -ceev teeb liab txoj kev ib txhij. Cov kev rho tawm digital tuaj yeem ua ke 4 txoj hauv kev hauv lub nti me me, txuag mus txog ib nrab ntawm lub rooj tsav xwm hauv lub rooj tsavxwm thiab tso cai rau cov neeg hlau kom hnov ​​​​mob nrawm dua.

Cov cuab yeej siv kho mob: Hauv tsev kho mob, cov kws cais tawm digital ua lub luag haujlwm tseem ceeb. Lawv tsim tsis muaj suab nrov, ua rau lawv haum rau lub tshuab ua pa. Hauv thaj chaw muaj zog sib nqus zoo li MRI cov cuab yeej, lawv lub suab nrov tiv thaiv tuaj yeem yog 10 npaug ntawm cov tshuaj optocouplers, kom ntseeg tau tias cov ntaub ntawv kho mob muaj tseeb thiab txhim khu kev qha.

6. Kev Txhim Kho Yav Tom Ntej: Qhov "Infinite Potential" ntawm Digital Isolators
Txawm hais tias tus nqi tam sim no ntawm digital isolators yog me ntsis siab dua li cov cuab yeej cais tawm ib txwm muaj, lawv cov txiaj ntsig yuav dhau los ua kev tshaj tawm thaum thev naus laus zis tsim. Nyob rau hauv lub neej yav tom ntej, digital isolators yuav ntse dua, muaj peev xwm ntawm tus kheej - saib xyuas lawv cov xwm txheej kom pab tau cov chaw taws teeb tswj thiab kev saib xyuas. Hais txog kev tsim khoom, kev siv cov khoom siv tshiab yuav ntxiv dag zog rau lawv cov kev ua tau zoo thaum txo lawv qhov loj me. Ntxiv mus, domestic (Suav) digital isolators tab tom txhim kho sai, uas yuav ua rau cov nqi pheej yig dua thiab cov kev siv ntau dua nyob rau yav tom ntej.Los ntawm cov qauv kev ua haujlwm thiab kev ua tau zoo rau cov xwm txheej, cov kev cais tawm digital qhia tau tias muaj peev xwm ua tau zoo dua li cov cuab yeej cais tawm ib txwm muaj. Txawm hais tias cov teeb meem me tseem nyob, nrog kev nce qib thev naus laus zis txuas ntxiv, cov kev sib cais digital zoo li yuav dhau los ua "lub luag haujlwm tseem ceeb" yav tom ntej ntawm kev nyab xeeb hauv Circuit Court, tiv thaiv ntau thiab ntau cov khoom siv hluav taws xob hauv peb lub neej.