Kev daws rau electromagnetic compatibility
Los ntawm peb lub ntsiab lus ntawm electromagnetic compatibility, los daws qhov teeb meem electromagnetic compatibility ntawm kev hloov cov khoom siv fais fab, peb tuaj yeem pib los ntawm peb yam:
Ua ntej, txo cov teeb meem cuam tshuam los ntawm qhov chaw cuam tshuam;
Qhov thib ob, txiav tawm txoj kev sib kis ntawm kev ua phem rau cov teeb liab;
Thib peb, txhim kho lub peev xwm ntawm cov neeg raug thab plaub kom tiv thaiv kev thab plaub. Thaum daws qhov sib xyaw ua ke ntawm kev hloov cov khoom siv hluav taws xob, cov saum toj no peb txoj kev tuaj yeem siv tau zoo, raws li tus nqi-zoo piv thiab yooj yim ntawm kev siv. Yog li ntawd, kev cuam tshuam sab nraud tsim los ntawm kev hloov cov khoom siv hluav taws xob, xws li cov khoom siv hluav taws xob sib haum xeeb hauv cov kab hluav taws xob, ua rau muaj kev cuam tshuam hauv cov kab hluav taws xob, thiab hluav taws xob hluav taws xob hluav taws xob hluav taws xob cuam tshuam, tsuas yog daws tau los ntawm kev txo qhov cuam tshuam.
Ntawm qhov tod tes, nws tuaj yeem txhim kho tus qauv tsim ntawm cov tswv yim / tso zis filtering circuits, txhim kho kev ua haujlwm ntawm APFC circuits, txo qhov voltage thiab tam sim no hloov tus nqi ntawm cov hloov raj, rectifiers, thiab freewheeling diodes, thiab txais yuav ntau yam mos switching circuit topologies thiab tswj. txoj kev; Ntawm qhov tod tes, ntxiv dag zog rau kev tiv thaiv kev tiv thaiv ntawm lub casing, txhim kho qhov sib txawv ntawm lub casing, thiab ua tiav kev kho av zoo. Thiab rau kev muaj peev xwm tiv thaiv kev cuam tshuam sab nraud (xws li surges thiab xob laim tawm tsam), lub peev xwm tiv thaiv xob laim ntawm AC input thiab DC output ports yuav tsum tau ua kom zoo dua. Feem ntau, rau 1.2/50 μ Qhib Circuit Court voltage thiab 8/20 μ Kev sib xyaw ua ke xob laim tawm tsam ntawm luv luv Circuit Court tam sim no feem ntau daws tau los ntawm kev sib txuas cov zinc oxide varistors thiab roj square raj vim lawv lub zog me me. Rau cov hluav taws xob hluav taws xob hluav taws xob, TVS cov raj thiab cov kev tiv thaiv hauv av feem ntau yog siv rau hauv cov teeb liab me me ntawm kev sib txuas lus thiab tswj cov chaw nres nkoj, thiab qhov hluav taws xob nyob deb ntawm lub teeb liab Circuit Court thiab cov casing yog nce los daws lossis xaiv cov khoom siv los tiv thaiv zoo li qub. Lub teeb liab ceev ceev muaj qhov dav spectrum thiab kis tau yooj yim mus rau hauv kev tswj xyuas hluav taws xob hauv hom hom. Tib txoj kev los tiv thaiv zoo li qub yog siv los txo cov kev faib tawm ntawm cov hom inductance thiab ntxiv dag zog rau cov hom teeb liab lim ntawm cov khoom siv hluav taws xob (xws li ntxiv ib hom hom capacitor lossis ntxig ib hom ferrite sib nqus nplhaib) los txhim kho tiv thaiv kev cuam tshuam kev ua haujlwm ntawm qhov system.
Txhawm rau txo qis kev cuam tshuam sab hauv ntawm kev hloov cov khoom siv hluav taws xob, ua tiav lawv tus kheej electromagnetic compatibility, thiab txhim kho kev ruaj ntseg thiab kev ntseeg siab ntawm kev hloov cov khoom siv hluav taws xob, cov hauv qab no yuav tsum tau muab coj los xav txog:
① Ua tib zoo saib xyuas qhov tseeb zoning ntawm digital circuit thiab module Circuit Court PCB thaiv;
② Decoupling ntawm digital circuit thiab analog circuit fais fab mov;
③ Ib qho taw qhia hauv av ntawm digital circuits thiab analog circuits, ib qho taw qhia grounding ntawm high tam sim no circuits thiab me me tam sim no, tshwj xeeb tshaj yog tam sim no thiab voltage sampling circuits, kom tsis txhob muaj kev cuam tshuam kev cuam tshuam thiab txo qhov cuam tshuam ntawm lub voj hauv av. Thaum xaim, yuav tsum tau them nyiaj rau qhov sib nrug ntawm cov kab uas nyob ib sab thiab cov teeb liab kom tsis txhob muaj kev sib tham, txo qhov chaw nyob ib puag ncig los ntawm cov khoom siv hluav taws xob tag nrho tam sim no, txuas ntxiv tam sim no diode Circuit Court, thiab ceg lim Circuit Court, thiab txo qhov kev faib tawm ntawm cov hluav taws xob hloov pauv thiab lim inductance, Siv lim capacitors nrog siab resonant zaus, thiab lwm yam.
