01
Imiterere yimbaraga zijyanye

Imirongo ya sisitemu akenshi isaba imiyoboro idahagarara, bityo inrush ingendo ikorwa kubikoresho bimwe byihuta.

Niba ingufu z'amashanyarazi ari ndende cyane, kuba inrush ihari bizatera urusaku rwinshi, kandi uru rusaku rwinshi ruzinjizwa mubindi bimenyetso. Mumuzunguruko wihuse, byanze bikunze hazabaho inductance ya parasitike, kurwanya parasitike hamwe nubushobozi bwa parasitike, bityo urusaku rwumuvuduko mwinshi amaherezo ruzahuzwa nizindi nzitizi, kandi kuba hari inductance ya parasitike nabyo bizaganisha kubushobozi bwurwego rwo kwihanganira. igipimo kinini cyo kugabanuka Kugabanuka, nacyo kiganisha ku kugabanuka k'igice cya voltage, gishobora guhagarika uruziga.

Kubwibyo, ni ngombwa cyane kongeramo ubushobozi bwa bypass imbere yigikoresho cya digitale. Ubunini bunini, imbaraga zo kohereza zigarukira ku kigero cyo kohereza, bityo ubushobozi bunini hamwe nubushobozi buke muri rusange byahujwe kugirango bihuze umurongo wuzuye.

Irinde ahantu hashyushye: ibimenyetso vias bizabyara icyuho kumurongo wamashanyarazi no kumurongo wo hasi. Kubwibyo rero, gushyira vias bidafite ishingiro birashoboka kongera ubwinshi bwubu mubice bimwe na bimwe bitanga amashanyarazi cyangwa indege yubutaka. Utu turere aho ubwiyongere bwubu bwitwa ahantu hashyushye.

Tugomba rero kugerageza uko dushoboye kugirango twirinde iki kibazo mugihe dushyizeho vias, kugirango tubuze indege gucikamo ibice, amaherezo bizatera ibibazo bya EMC.

Mubisanzwe inzira nziza yo kwirinda ahantu hashyushye nugushira vias muburyo bwa mesh, kugirango ubucucike bwubu bumeze kimwe, kandi indege ntizigunga icyarimwe, inzira yo kugaruka ntizaba ndende, kandi ibibazo bya EMC bizabikora ntibibaho.

02
Uburyo bwo kugonda inzira

Mugihe ushyiraho ibimenyetso byihuta byumurongo, irinde kugoreka ibimenyetso byerekana ibimenyetso bishoboka. Niba ugomba kugoreka ibimenyetso, ntukabishakishe kuruhande rukaze cyangwa iburyo, ahubwo ukoreshe inguni ya obtuse.

Iyo dushyizeho imirongo yihuta yerekana ibimenyetso, dukoresha imirongo yinzoka kugirango tugere kuburebure bungana. Umurongo umwe winzoka mubyukuri ni ubwoko bunamye. Ubugari bwumurongo, intera, nuburyo bugoramye bigomba guhitamo neza, kandi intera igomba kuba yujuje amategeko ya 4W / 1.5W.

03
Ikimenyetso cyegeranye

Niba intera iri hagati yihuta yerekana ibimenyetso byihuta cyane, biroroshye kubyara inzira. Rimwe na rimwe, kubera imiterere, ubunini bwikibaho nubundi mpamvu, intera iri hagati yumurongo wihuta wibimenyetso byihuta birenze intera isabwa, noneho dushobora kongera intera iri hagati yumurongo wihuta wihuta cyane bishoboka hafi yikibazo. intera.

Mubyukuri, niba umwanya uhagije, gerageza kongera intera iri hagati yimirongo ibiri yihuta.

03
Ikimenyetso cyegeranye

Niba intera iri hagati yihuta yerekana ibimenyetso byihuta cyane, biroroshye kubyara inzira. Rimwe na rimwe, kubera imiterere, ubunini bwikibaho nubundi mpamvu, intera iri hagati yumurongo wihuta wibimenyetso byihuta birenze intera isabwa, noneho dushobora kongera intera iri hagati yumurongo wihuta wihuta cyane bishoboka hafi yikibazo. intera.

Mubyukuri, niba umwanya uhagije, gerageza kongera intera iri hagati yimirongo ibiri yihuta.

05
Impedance ntabwo ikomeza

Agaciro ka impedance yumurongo muri rusange biterwa nubugari bwumurongo hamwe nintera iri hagati yumurongo nindege yerekanwe. Mugari mugari, niko kugabanuka kwayo. Mubice bimwe byimbere hamwe nibikoresho byuma, ihame naryo rirakoreshwa.

Iyo padi yimbere yimbere ihujwe numuvuduko mwinshi wihuta wumurongo, niba padi nini cyane muriki gihe, kandi umurongo wihuta wihuta ni muto cyane, impedance ya padi nini ni nto, kandi ifunganye inzira igomba kuba ifite inzitizi nini. Muri iki kibazo, guhagarika impedance bizabaho, kandi ibimenyetso byerekana bizabaho niba impedance ihagaritswe.

Kubwibyo, kugirango iki kibazo gikemuke, urupapuro rwumuringa rwabujijwe rushyirwa munsi yumupaka munini wa interineti cyangwa igikoresho, hanyuma indege yerekanwe kuri padi igashyirwa kurundi rwego kugirango byongere inzitizi kugirango inzitizi ikomeze.

Vias nindi soko yo guhagarika impedance. Kugirango ugabanye ingaruka, uruhu rwumuringa rutari rukenewe ruhujwe nigice cyimbere kandi unyuze rugomba kuvaho.

Mubyukuri, ubu bwoko bwibikorwa bushobora gukurwaho nibikoresho bya CAD mugihe cyo gushushanya cyangwa kuvugana nuwakoze uruganda rutunganya PCB kugirango akureho umuringa udakenewe kandi yemeze ko inzitizi zikomeza.

Vias nindi soko yo guhagarika impedance. Kugirango ugabanye ingaruka, uruhu rwumuringa rutari rukenewe ruhujwe nigice cyimbere kandi unyuze rugomba kuvaho.

Mubyukuri, ubu bwoko bwibikorwa bushobora gukurwaho nibikoresho bya CAD mugihe cyo gushushanya cyangwa kuvugana nuwakoze uruganda rutunganya PCB kugirango akureho umuringa udakenewe kandi yemeze ko inzitizi zikomeza.

Birabujijwe gutondekanya vias cyangwa ibice mubice bitandukanye. Niba vias cyangwa ibice byashyizwe muburyo butandukanye, ibibazo bya EMC bizabaho kandi guhagarika inzitizi nabyo bizavamo.

Rimwe na rimwe, bimwe byihuta byerekana ibimenyetso byerekana imirongo bigomba guhuzwa murukurikirane hamwe na capacator. Ubushobozi bwo guhuza kandi bugomba gutondekwa muburyo bumwe, kandi pake ya capacitori ntishobora kuba nini cyane. Birasabwa gukoresha 0402, 0603 nayo iremewe, kandi capacator ziri hejuru ya 0805 cyangwa capacator kuruhande rumwe nibyiza kudakoreshwa.

Mubisanzwe, vias izabyara impedance nini yo guhagarara, kubwibyo byihuta byihuta byerekana ibimenyetso byombi, gerageza kugabanya vias, kandi niba ushaka gukoresha vias, ubitondekanye muburyo bumwe.

07
Uburebure bungana

Mubice bimwe byihuta byerekana ibimenyetso, mubisanzwe, nka bisi, igihe cyo kuhagera nigihe cyo gutinda hagati yumurongo wibimenyetso ugomba kwitabwaho. Kurugero, mumatsinda yihuta yihuta ya bisi, igihe cyo kugera kumurongo wamakuru yose yerekana ibimenyetso kigomba kwemezwa mugihe runaka cyo gutinda kugirango harebwe igihe cyo gushiraho nigihe cyo gufata. Kugira ngo iki cyifuzo gikemuke, tugomba gutekereza ku burebure bungana.

Umurongo wihuta utandukanya ibimenyetso bigomba kwemeza igihe ntarengwa kumirongo ibiri yerekana ibimenyetso, bitabaye ibyo itumanaho rishobora kunanirwa. Kubwibyo, kugirango uhuze iki cyifuzo, umurongo winzoka urashobora gukoreshwa kugirango ugere ku burebure bungana, bityo wuzuze igihe gisabwa.

Umurongo winzoka ugomba gushyirwa mubisoko byo gutakaza uburebure, ntabwo kumpera yanyuma. Gusa ku nkomoko irashobora kwerekana ibimenyetso kumpera nziza kandi mbi yumurongo utandukanye woherejwe mugihe kimwe.

Umurongo winzoka ugomba gushyirwa mubisoko byo gutakaza uburebure, ntabwo kumpera yanyuma. Gusa ku nkomoko irashobora kwerekana ibimenyetso kumpera nziza kandi mbi yumurongo utandukanye woherejwe mugihe kimwe.

Niba hari ibimenyetso bibiri byunamye kandi intera iri hagati yabiri iri munsi ya 15mm, gutakaza uburebure hagati yabyo byombi bizishyurana muriki gihe, ntabwo rero bikenewe gukora uburebure buringaniye muriki gihe.

Kubice bitandukanye byihuta byihuta byerekana ibimenyetso, bigomba kuba bingana ubwigenge. Vias, urukurikirane rwububiko, hamwe ninteruro ya interineti byose ni umuvuduko mwinshi utandukanya imirongo yerekana ibimenyetso bigabanijwemo ibice bibiri, bityo rero witondere byumwihariko muriki gihe.

Ugomba kuba uburebure bumwe ukwe. Kuberako software nyinshi ya EDA yitondera gusa niba insinga zose zabuze muri DRC.

Kuri interineti nka LVDS yerekana ibikoresho, hazaba hari ibice bibiri bitandukanye bitandukanye icyarimwe, kandi ibisabwa byigihe hagati yabantu batandukanye muri rusange birakomeye, kandi ibisabwa byo gutinza igihe ni bito cyane. Kubwibyo, kubintu bitandukanye byerekana ibimenyetso byombi, turabasaba muri rusange kuba mu ndege imwe. Tanga indishyi. Kuberako ibimenyetso byohereza umuvuduko mubice bitandukanye biratandukanye.

Iyo porogaramu zimwe za EDA zibara uburebure bwikurikiranwa, ibisobanuro biri imbere muri padi nabyo bizabarwa muburebure. Niba indishyi z'uburebure zakozwe muri iki gihe, ibisubizo nyabyo bizatakaza uburebure. Witondere rero muri iki gihe mugihe ukoresheje software zimwe na zimwe.

Igihe icyo ari cyo cyose, niba ubishoboye, ugomba guhitamo inzira ihuriweho kugirango wirinde gukenera amaherezo gukora inzoka yinzoka kuburebure bungana.

Niba umwanya ubyemereye, gerageza kongeramo akantu gato ku isoko yumurongo mugufi utandukanye kugirango ugere ku ndishyi, aho gukoresha umurongo winzoka kugirango wishyure.