Ntchito ya optocoupler relay mumagetsi

Ntchito yayikulu ya optocoupler mu gawo lamagetsi ndikuzindikira kudzipatula pomwe kutembenuka kwa photoelectric ndikupewa kusokonezana.Ntchito ya disconnector imawonekera makamaka mu dera.

Chizindikirocho chimayenda mbali imodzi.Zolowetsa ndi zotulutsa ndizokhazikika pamagetsi.Chizindikiro chotulutsa sichimakhudza zolowetsa.Mphamvu zotsutsana ndi kusokoneza, ntchito yokhazikika, palibe kukhudzana, moyo wautali wautumiki komanso kuyendetsa bwino kwambiri.Optocoupler ndi chipangizo chatsopano chomwe chinapangidwa mu 1970s.Pakali pano, chimagwiritsidwa ntchito kwambiri kutchinjiriza magetsi, mlingo kutembenuka, interstage lumikiza, galimoto dera, kusintha dera, chopper, multivibrator, chizindikiro kudzipatula, interstage kudzipatula, zimachitika kukulitsa dera, chida digito, mtunda wautali kufala chizindikiro, kugunda amplifier, olimba. -boma chipangizo, boma relay (SSR), chida, zipangizo zoyankhulirana ndi microcomputer mawonekedwe.Mumagetsi osinthika a monolithic, mzere wa optocoupler umagwiritsidwa ntchito kupanga gawo la mayankho a optocoupler, ndipo ntchito yozungulira imasinthidwa ndikusintha mawonekedwe owongolera kuti akwaniritse cholinga chowongolera voteji molondola.

Ntchito yayikulu ya optocoupler pakusintha magetsi ndikudzipatula, kupereka ndemanga ndikusintha.Mphamvu yamagetsi ya optocoupler mumagetsi osinthira magetsi amaperekedwa ndi voteji yachiwiri ya transformer yapamwamba kwambiri.Mphamvu yotulutsa ikakhala yotsika kuposa voteji ya zener, yatsani chizindikiro cha optocoupler ndikuwonjezera ntchito kuti muwonjezere voteji.M'malo mwake, kuzimitsa optocoupler kumachepetsa kuzungulira kwa ntchito ndikuchepetsa mphamvu yamagetsi.Pamene katundu wachiwiri wa thiransifoma wapamwamba kwambiri wadzaza kwambiri kapena kusintha kwa dera kumalephera, palibe mphamvu ya optocoupler, ndipo optocoupler imayendetsa dera losinthira kuti lisagwedezeke, kuti ateteze chubu chosinthira kuti chiwotchedwe.Optocoupler nthawi zambiri amagwiritsidwa ntchito ndi TL431.Zotsutsa ziwirizi zimatengedwa mndandanda wa 431r terminal poyerekeza ndi wofananira wamkati.Kenako, molingana ndi chizindikiro chofananira, kukana kwapansi kwa 431k kumapeto (kumapeto komwe anode kumalumikizidwa ndi optocoupler) kumayendetsedwa, ndiyeno kuwala kwa diode yotulutsa kuwala mu optocoupler kumayendetsedwa.(pali ma diode otulutsa kuwala mbali imodzi ya optocoupler ndi phototransistors mbali inayo) kulimba kwa kuwala komwe kumadutsa.Yang'anirani kukana kumapeto kwa CE kwa transistor kumapeto kwina, sinthani chipangizo chamagetsi cha LED, ndikusintha zokha kuzungulira kwa siginecha yotulutsa kuti mukwaniritse cholinga chokhazikika.

Kutentha kozungulira kukasintha kwambiri, kutentha kwa amplification factor ndi kwakukulu, komwe sikuyenera kuzindikirika ndi optocoupler.Dera la Optocoupler ndi gawo lofunikira kwambiri pakusinthira magetsi.

kusokoneza


Nthawi yotumiza: May-03-2022