Basa re optocoupler relay mune magetsi

Basa guru reoptocoupler mumagetsi emagetsi dunhu kuona kuzviparadzanisa nepo photoelectric shanduko uye kudzivirira kupindirana.Basa re disconnector rinonyanya kuoneka munharaunda.

Chiratidzo chinofamba nenzira imwe.Input and output is zvachose magetsi ega.Chiratidzo chekubuda hachina simba pane inopinza.Simba rinopesana nekupindira kugona, kushanda kwakadzikama, kusabatana, hupenyu hurefu hwebasa uye hukuru hwekufambisa.Optocoupler chishandiso chitsva chakagadzirwa muma1970s.Parizvino, inoshandiswa zvakanyanya mukudzivirira kwemagetsi, kutendeuka kwemazinga, kubatanidza kubatanidza, kutyaira dunhu, switching circuit, chopper, multivibrator, chiratidzo chekuzviparadzanisa, interstage isolation, pulse amplification circuit, chimbo chedhijitari, kufambisa kwemasaini kureba, pulse amplifier, yakasimba. -state device, state relay (SSR), chiridzwa, midziyo yekutaurirana uye microcomputer interface.Mune monolithic switching power supply, iyo linear optocoupler inoshandiswa kugadzira iyo optocoupler mhinduro wedunhu, uye kutenderera kwebasa kunoshandurwa nekugadzirisa iyo control terminal ikozvino kuti izadzise chinangwa cheiyo chaiyo voltage regulation.

Basa guru reoptocoupler mukushandura magetsi ndeyekuzviparadzanisa, kupa mhinduro yechiratidzo uye kuchinja.Simba remagetsi e-optocoupler mumagetsi ekugadzirisa magetsi anopiwa nechipiri chechipiri chepamusoro-frequency transformer.Kana iyo voltage inobuda yakadzikira pane zener voltage, batidza chiratidzo optocoupler uye uwedzere kutenderera kwebasa kuti uwedzere kubuda kwemagetsi.Pane zvinopesana, kudzima optocoupler kunoderedza kutenderera kwebasa uye kuderedza kubuda kwemagetsi.Kana iyo yechipiri mutoro we-high-frequency transformer inoremerwa kana shanduko yekuchinja ikatadza, hapana optocoupler magetsi ekupa, uye optocoupler inodzora switch yedunhu kuti irege kudedera, kuitira kuchengetedza switch chubhu kubva pakupiswa.Optocoupler inowanzo shandiswa neTL431.Iwo maviri anopikisa anotorwa munhevedzano kune iyo 431r terminal yekuenzanisa neyemukati muenzanisi.Zvadaro, maererano nechiratidzo chekuenzanisa, kupikisa kwepasi kwe 431k kuguma (kuguma uko anode yakabatana ne optocoupler) inodzorwa, uye ipapo kupenya kwechiedza-emitting diode mu optocoupler inodzorwa.(kune chiedza-emitting diodes kune rumwe rutivi rweoptocoupler uye phototransistors kune rumwe rutivi) kusimba kwechiedza chinopfuura.Dzora kupikisa pakupera kweEC kwetransistor kune imwe mugumo, shandura iyo LED magetsi drive chip, uye otomatiki gadzirisa kutenderera kwebasa reinobuda chiratidzo kuti uwane chinangwa chekudzikamisa magetsi.

Kana iyo ambient tembiricha ichichinja zvakanyanya, tembiricha yekudonha kweiyo amplification factor yakakura, iyo isingafanirwe kuitwa neoptocoupler.Optocoupler circuit chikamu chakakosha chekuchinja magetsi emagetsi.

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Nguva yekutumira: May-03-2022