Tsis yog txhua qhov sib cais transmitters yog tsim sib npaug. Cov txheej txheem siv los txuas cov kab thaiv kev sib cais dictates qhov kev ua tau zoo, ceev, thiab lub neej ntev ntawm lub cuab yeej. Yog tias koj lub tuam txhab tab tom nrhiav kev txhim kho nws cov cuab yeej, kev nkag siab txog peb qhov tseem ceeb ntawm kev rho tawm thev naus laus zis yog qhov tseem ceeb:
Optical Isolation (Optocouplers)
- Nws ua haujlwm li cas:Hloov cov teeb liab hluav taws xob nkag mus rau hauv lub teeb siv LED, uas tom qab ntawd kuaj pom los ntawm phototransistor hla qhov sib txawv insulating.
- Qhov zoo tshaj plaws rau:High voltage DC rho tawm thiab kev tiv thaiv zoo heev rau electromagnetic cuam tshuam (EMI).
Transformer (Galvanic / Sib nqus) cais
- Nws ua haujlwm li cas:Siv lub me me, siab - zaus transformer kom dhau lub teeb liab ntawm qhov chaw sib nqus sib nqus.
- Qhov zoo tshaj plaws rau:Cov neeg raug siab, kev siv hluav taws xob tsawg, thiab kev ruaj ntseg ntev -. Kev rho tawm Galvanic yog qhov nyiam tshaj plaws hauv cov teeb liab analog teeb liab vim nws tsis raug kev txom nyem los ntawm cov teebmeem kev laus uas tshwm sim rau LEDs.
Capacitive Isolation
- Nws ua haujlwm li cas:Siv cov hluav taws xob hloov pauv hla lub dielectric barrier los xa cov ntaub ntawv digital lossis modulated analog.
- Qhov zoo tshaj plaws rau:Lub sij hawm teb ceev heev thiab compact tsim.
Kab hauv qab:Rau feem ntau ntawm cov txheej txheem kev lag luam, transformer-raws li kev sib cais galvanic muab qhov zoo tshaj plaws sib npaug ntawm qhov tseeb, lifespan, thiab thermal stability. Xyuas kom koj tus neeg muag khoom siv qib siab -qib kev sib cais kev txwv kom ntseeg tau tias koj cov nroj tsuag khiav yam tsis muaj sijhawm poob.