Cov lus ceeb toom ntawm tus tsim ntawm tus kheej zoo siab switching fais fab mov
1. Rwb thaiv tsev ntawm thawj sab thiab theem nrab sab
Kev saib xyuas yuav tsum tau them rau cov rwb thaiv tsev ntawm AC sab thiab sab thib ob. Txhua lub teb chaws muaj nws tus kheej txoj cai ntawm qhov teeb meem no. Piv txwv li, qhov sib nrug (planar nrug) nruab nrab ntawm cov ntawv luam tawm uas nyob ib sab ntawm sab xub ntiag thiab theem nrab yog 3 hli, thiab qhov chaw nyob deb ntawm cov khoom nyob ib sab ntawm thawj sab thiab theem nrab yog 5 hli, thiab lwm yam, thiab cov khoom siv hluav taws xob yog siv rau hluav taws xob. rwb thaiv tsev.
Muaj peb yam khoom txuas rau sab xub ntiag thiab sab nraud, uas yog lub transformer T1, capacitor C12, thiab optocoupler IC2 nyob rau hauv daim duab, thiab lawv yuav tsum ua raws li lawv cov kev nyab xeeb specifications. Rau transformer T1, qhov kev txhawj xeeb tseem ceeb yog txheej rwb thaiv tsev ntawm cov theem pib thiab theem nrab. C12 yog siv los tshem tawm cov suab nrov ntawm cov kab hluav taws xob, yuav tsum xaiv AC capacitor. Thiab muaj txaus tiv taus voltage, thiab nws lub peev xwm tsis tuaj yeem loj dhau. Txwv tsis pub, cov xau tam sim no yuav nce ntxiv.
2. Cov khoom siv sab hauv tseem ceeb yuav tsum tsis txhob muaj kev phom sij luv luv
Lub surge voltage absorbers SAl, Rl, Cl, C2 thiab tus choj rectifier Dl ntawm thawj sab ncaj qha rau AC lub zog hluav taws xob, yog tias muaj hluav taws xob luv luv, nws yuav ua rau hluav taws kub. C1 thiab C2 yog siv los txo cov suab nrov nrov, thiab AC capacitors yuav tsum tau siv. Thiab xyuas kom meej tias nws qhov hluav taws xob tiv taus ntau dua ob npaug ntawm AC lub zog hluav taws xob, xws li 400V AC tiv taus hluav taws xob rau 220V voltage.
3. Cov kev tiv thaiv hauv Circuit Court tsis tuaj yeem raug tshem tawm
Fuse F1, thaum lub voj voog luv luv, nws yuav raug tshuab rau lub sijhawm txiav tawm ntawm AC qhov chaw kom tsis txhob muaj hluav taws kub, thiab yuav tsum xaiv hom fast-fusing; thaum F2 yog qhov kub thiab txias los tiv thaiv lub raj hloov Trl. Yuav tsum tau nruab ib sab ntawm Trl.
kuj. ICl muaj ib tug built-in dhau-tam sim no limiting Circuit Court, uas pom tshaj-tam sim no los ntawm voltage poob ntawm R12; SA1 tuaj yeem nqus tau sab nraud tshaj-voltage.
4. Ua tib zoo saib cov cai tswj kev nyab xeeb ntawm cov khoom xa tawm
Hloov cov khoom siv hluav taws xob rau kev xa tawm yuav tsum tsim thiab tsim raws li cov qauv kev nyab xeeb ntawm lub teb chaws tuaj. Ntxiv nrog rau kev kuaj xyuas cov rwb thaiv tsev thiab cov xau. Nws yog ib qho tsim nyog los xyuas kom meej tias lwm qhov chaw yuav tsis raug puas tsuaj thaum lub capacitor luv luv, thiab cov pas nrig hlau ntxig rau hauv rooj plaub yuav tsis ua rau hluav taws xob poob qis thiab luv luv.
