Dangantaka tsakanin farantin rigar PCB da EMC
Jagora: Da yake magana game da wahalar sauya wutar lantarki, matsalar farantin PCB ba ta da wahala sosai, amma idan kuna son kafa kwamiti mai kyau na PCB, canjin wutar lantarki dole ne ya zama ɗaya daga cikin matsalolin (ƙirar PCB ba ta da kyau. wanda zai iya haifar da komai ta yadda za'a gyara kuskuren sigogin suna lalata zane. Wannan ba mai faɗakarwa ba ne), saboda akwai abubuwa da yawa waɗanda ke la'akari da allunan zane na PCB, kamar aikin lantarki, hanyar sarrafawa, buƙatun tsaro, tasirin EMC, da sauransu. Daga cikin abubuwan, lantarki shine mafi mahimmanci, amma EMC shine mafi wuyar taɓawa.Ci gaban ayyukan da yawa shine matsalar EMC.Wannan labarin zai raba tare da ku alakar da ke tsakanin kwamitin zane na PCB da EMC daga kwatance 22.
- Wurin dafaffen na iya yin aikin da'irar EMI a hankali na ƙirar PCB
Ana iya tunanin tasirin da'irar da ke sama akan EMC.Matatun ƙarshen shigarwar suna nan;da matsa lamba - hujja anti-yajin;juriya R102 na tasiri na halin yanzu (tare da raguwar raguwa);Y capacitor wanda aka tace tare da tacewa;fuse wanda ke shafar allon shimfidar tsaro;kowace na'ura a nan tana da matukar muhimmanci.Wajibi ne a hankali dandana ayyuka da ayyukan kowace na'ura.Lokacin da aka ƙera da'irar ƙira, matakin EMC yana da kwanciyar hankali da ƙira, kamar saita matakan tacewa da yawa, lamba da wurin adadin masu ƙarfin Y.Zaɓin girman ƙarfin ƙarfin lantarki yana da alaƙa da buƙatun mu na EMC.Maraba da kowa don tattauna da'irar EMI masu sauƙi na kowane bangare.
- 2.Circuit da EMC: (Mafi yawan sanannun anti-gravity topology, duba waɗanne mahimman wurare a cikin da'irar sun ƙunshi tsarin EMC)
Wasu sassa na kewayawa a cikin adadi a sama: tasiri akan EMC yana da mahimmanci (lura cewa ɓangaren kore ba).Alal misali, kowa ya san cewa hasken wutar lantarki na filin lantarki shine sararin samaniya, amma ainihin ka'idar ita ce canjin yanayin maganadisu., Wato, da'irar zobe daidai a cikin kewaye.
Halin na yanzu zai iya samar da filin maganadisu, wanda ke samar da filin maganadisu tsayayye kuma ba za a iya canza shi zuwa filin lantarki ba.Filin lantarki na iya samar da filin maganadisu.Don haka tabbatar da kula da wuraren da ke da matsayi na canzawa, wato, ɗaya daga cikin tushen EMC.Ga daya daga cikin tushen EMC (ɗaya daga cikinsu a nan, ba shakka, za a sami wasu al'amura daga baya), irin su da'irar layi mai dige a cikin kewaye, wanda shine bude bututun sauyawa don buɗe bututu.Tsarin turbine wanda aka rufe ba kawai saurin sauyawa na sauyawa zai iya daidaita tasirin EMC ba, amma yanki na kewayar zane yana da tasiri mai mahimmanci!Sauran madaukai biyu suna ɗaukar zobe da da'irar gyarawa, fara fahimta a gaba, sannan magana game da shi daga baya.
- Na uku, ƙungiyar tsakanin ƙirar PCB da EMC
1. Tasirin madauki na PCB akan EMC yana da mahimmanci.Misali, da'irar zobe na anti-main power, idan yayi girma sosai, radiation zata yi rauni.
2. Tasirin wiring filter, ana amfani da tacewa don tacewa don tsoma baki, amma idan PCB yana da mummunan wiring, tacewa na iya rasa tasirin.
3. Sassan tsarin, ba da kyau - ƙirar ƙasa na radiator zai shafi, tsarin kariya na ƙasa, da dai sauransu;
4. Bangaren mai hankali yana kusa da tushen tsangwama.Misali, da'irar EMI tana kusa da bututun sauyawa, wanda babu makawa zai kai ga rashin EMC mara kyau kuma yana buƙatar fili keɓewa.
5. RC sha kewaye.
6. Capacitor na Y yana ƙasa da wayoyi, kuma matsayin capacitor na Y yana da mahimmanci.
Bari mu ba da ƙaramin misali a ƙasa:
Kamar yadda aka nuna a cikin hoton da ke sama, ana sarrafa hanyar X-capacitor fil a ciki.Kuna iya koyon yadda ake yin capacitor pink ride plug -in (ta amfani da extrusion current).Ta wannan hanyar, tasirin tacewa na capacitor X na iya cimma mafi kyawun yanayi.
- 4. Shiri don ƙirar PCB: (Shirin ya isa, kawai ƙirar za a iya tsara ta mataki-mataki don guje wa ƙira ƙira)
Akwai kusan bangarori na wadannan bangarorin.Ana la'akari da cewa za a yi la'akari da tsarin zane.Duk abun ciki ba shi da alaƙa da sauran koyawa.Takaitacciyar gogewa ce kawai.
1. Girman tsarin bayyanar, ciki har da ramukan sakawa, kwararar bututun iska, shigarwar shigarwa da fitarwa, kuna buƙatar daidaita tsarin abokin ciniki, kuma kuna buƙatar sadarwa tare da abokin ciniki, wanda ke iyakance zuwa babba.
2. Takaddun shaida na aminci, wane nau'in tabbatarwa na samfurin, wanda wuraren yin rufin asali da hawan nisa, da kuma inda za a ƙarfafa rufin da barin ramin.
3. Marufi zane: Shin akwai wani lokaci na musamman, irin su shirye-shiryen shirya kayan aiki na musamman.
4. Zaɓin hanyoyin aiwatarwa: zaɓi guda ɗaya-panel sau biyu zaɓi, ko allon multilayer, cikakkiyar ƙima bisa ga ka'idar zane da girman allo, farashi da sauran ƙididdigar ƙima.
5. Sauran bukatu na musamman ga abokan ciniki.
Sana'ar tsarin za ta kasance mai sauƙi.Dokokin tsaro har yanzu suna da inganci.Abin da takaddun shaida ke yi, da kuma menene matakan tsaro, ba shakka, akwai kuma wasu ƙa'idodin tsaro waɗanda suka zama ruwan dare a cikin ƙa'idodi da yawa, amma kuma akwai wasu samfuran musamman kamar magani.
Don zama mai ban sha'awa, abokan sabon injiniyan matakin shigarwa ba su da ban mamaki.Ga wasu samfuran gama-gari waɗanda suka zama gama gari.Mai zuwa shine takamaiman buƙatun allon zane wanda IEC60065 ya taƙaita.A cikin ka'idojin tsaro, kuna buƙatar kiyayewa.Lokacin da kuka haɗu da takamaiman samfura, dole ne ku magance su:
1. Nisa na shigar da fis ɗin fuse ya fi 3.0mm.Ainihin farantin rigar yana a 3.5mm (kawai don hawa nisan hawan wutar lantarki a 3.5mm kafin fis, sannan hawa wutar a 3.0mm).
2. Dokokin tsaro kafin da kuma bayan gyaran gadar ana buƙatar su zama 2.0mm, kuma farantin zane shine 2.5mm.
3. Bayan gyare-gyare, ka'idojin tsaro gabaɗaya baya buƙatar buƙatu, amma ana barin ɗakin babba da ƙarancin ƙarfin lantarki bisa ga ainihin ƙarfin lantarki, kuma al'adar 400V ta fi 2.0mm.
4. Dokokin tsaro don matakin farko shine 6.4mm (gizon lantarki), kuma nisa mai nisa ya fi dacewa da 7.6mm (bayanin kula: wannan yana da alaƙa da ainihin ƙarfin shigarwa. ba da izini) .
5. Yi amfani da filaye masu sanyi a mataki na farko kuma gano shi a fili;L, N ganowa, shigar da tambarin shigar da AC, tambarin faɗakarwa na fuse, da sauransu duk suna buƙatar alama a sarari.
Kowa yana da shakku game da abubuwan da ke sama, kuma za su iya tattaunawa da koyi da juna.
Har yanzu, ainihin nisan tsaro yana da alaƙa da ainihin ƙarfin shigarwar da yanayin aiki.Ana buƙatar takamaiman lissafin tebur.An ba da bayanan don tunani kawai kuma ainihin lokatai suna ƙarƙashin abubuwan da suka faru.
- 5. PCB zane dokokin tsaro la'akari da wasu dalilai
1. Fahimtar wane tabbaci na samfuran ku, wane nau'in samfuran ne, kamar likitanci, sadarwa, wutar lantarki, TV, da sauransu, amma akwai wurare da yawa makamantan haka.
2. Wurin da tsaro ya kasance kusa da allon zane na PCB, fahimtar halaye na rufin, wanda shine mahimmancin rufin, wanda aka inganta haɓaka, kuma daban-daban daidaitattun nisa sun bambanta.Zai fi kyau a duba ma'auni, kuma ana ƙididdige nisan wutar lantarki kuma ana hawan nesa.
3. Mayar da hankali kan na'urar tsaro na samfurin, kamar alaƙar da ke tsakanin magnetism na transfoma da mataimaki na asali.
4. Ruwan zafi da nisa na gefe, ƙasar da aka haɗa da radiator daban-daban, ƙasar ba ɗaya ba ce, ƙasa har yanzu sanyi, kuma yanayin zafi na ƙasa iri ɗaya ne.
5. Kulawa na musamman ga nisan inshora, ana buƙatar wuri mafi tsauri.Nisa tsakanin fis ɗin daidai yake.
6. Y capacitor da leakage halin yanzu, tuntuɓi dangantakar yanzu.
Bibiyar za ta bayyana yadda ake kiyaye nesa da yadda ake yin buƙatun tsaro.
- 6. Tsarin wutar lantarki na ƙirar PCB
1. Da farko, auna girman girman PCB da adadin na'urorin, don ya zama mai yawa, in ba haka ba yana da wuya, kuma yana da wuya a ga guntu mai laushi.
2. Gyara kewayawa, mai da hankali kan na'urori masu mahimmanci, da ka'idar maɓalli don sanya na'urar a lokaci ɗaya.
3. Na'urar tana tsaye ko a kwance.Ɗayan yana da kyau, ɗayan kuma shine don sauƙaƙe ayyukan plug-in.Ana iya la'akari da yanayi na musamman.
4. Lokacin shimfidawa, kana buƙatar la'akari da wayoyi kuma sanya shi a cikin matsayi mafi dacewa kuma sauƙaƙe layin biyo baya.
5. A lokacin shimfidawa, an rage yankin zobe kamar yadda zai yiwu, kuma za a yi bayani dalla-dalla dalla-dalla manyan hanyoyin zobe guda hudu.
Don cimma abubuwan da ke sama, ba shakka, wajibi ne a yi amfani da shi a hankali, kuma za a haifi mafi kyawun shimfidar wuri.
Mai zuwa allon PCB ne, wanda ya cancanci koyo daga tsarin gaba ɗaya:
Ƙarfin ƙarfin wannan adadi har yanzu yana da girma.Daga cikin su, sashin kulawa na LLC, sashin tushen taimako, da kuma BUCK drive drive (high-power multi-road fitarwa) suna kan ƙaramin allo.
1. Matsalolin shigarwa da fitarwa sun kayyade kuma sun mutu.Ba za a iya motsawa ba.Allon yana da rectangular.Yadda za a zabi babban wutar lantarki?Anan, daga kasa zuwa sama, daga hagu da dama zuwa shimfidar wuri, zafi mai zafi ya dogara da harsashi.
2. Har yanzu da'irar EMI a bayyane take.Wannan yana da matukar muhimmanci.Idan ya rikice, ba shi da kyau ga EMC.
3. Matsayin manyan capacitors yakamata a yi la'akari da madauki na PFC da babban madauki na LLC.
4. Halin halin yanzu na gefen taimako yana da girma.Domin ɗaukar halin yanzu da zafi mai zafi na bututu mai gyarawa, an karɓi wannan shimfidar wuri.Bututu mai gyara yana saman.kawai.
Kowane allo yana da halaye na kansa, kuma ba shakka yana da nasa matsalolin.Yadda za a warware shi a hankali shine mabuɗin.Shin za ku iya fahimtar ma'anar madaidaicin zaɓi na shimfidawa?
- 7. PCB misali godiya
Bisa ga tsarin PCB na shimfidar PCB da aka tattauna a baya, duba wannan allon, ko yana cikin wurin, ina tsammanin wuri ne mafi kyau.Tabbas, kurakuran zasu kasance koyaushe.Hakanan zaka iya ba da shawara.Ba abu bane mai sauƙi, zaku iya koyo daga wannan allo!Daga baya, za ku kuma yi bayani kuma ku koyi wannan allo.Bari mu fara godiya da shi.
- 8. The hudu manyan zobe hanyoyi na PCB zane (ainihin da ake bukata na PCB layout ne kananan yanki na hudu manyan zobe circuits)
Bugu da ƙari, zoben sha (RCD absorption da RC absorption na MOS tube, RC absorption na gyaran bututu) yana da mahimmanci sosai, kuma shi ma madauki ne wanda ke haifar da radiation mai girma.Idan kuna da wasu tambayoyi a sama, kuna marhabin da ku tattauna shi.Muddin ana tambayarsa da tambayoyi, tattaunawa tare zai iya samun ci gaba mai girma!
