1. Tufafin Copper
Abin da ake kira murfin tagulla, shi ne sararin da ba shi da aiki a kan allon kewayawa a matsayin datum, sannan kuma an cika shi da tagulla mai kauri, waɗannan wuraren tagulla kuma ana kiran su da cikon tagulla.
Muhimmancin suturar jan ƙarfe shine: rage ƙarancin ƙasa, haɓaka ƙarfin tsangwama;Rage raguwar ƙarfin lantarki, inganta ƙarfin wutar lantarki;An haɗa shi da waya ta ƙasa, kuma yana iya rage yankin madauki.
Har ila yau, don manufar yin walda na PCB a matsayin nakasawa kamar yadda zai yiwu, yawancin masana'antun PCB kuma za su buƙaci masu zanen PCB su cika buɗaɗɗen wurin PCB da jan ƙarfe ko grid ƙasa waya.Idan ba a kula da jan karfe da kyau ba, zai fi darajar asarar.Ko jan ƙarfe ya "fi kyau fiye da mara kyau" ko "ya fi kyau fiye da kyau"?Kamar yadda muka sani, a cikin yanayin mita mai girma, ƙarfin da aka rarraba na wayoyi a kan allon da aka buga zai yi aiki.Lokacin da tsayin ya fi 1/20 na zangon da ya dace da mitar amo, za a haifar da tasirin eriya, kuma za a fitar da hayaniya a waje ta hanyar wayoyi.Idan akwai murfin jan ƙarfe mara kyau a cikin PCB, murfin jan ƙarfe zai zama kayan aiki don yada amo.
Saboda haka, a cikin babban mita mita, kada kuyi tunanin cewa ƙasa a wani wuri, wannan shine "wayar ƙasa", dole ne ta kasance ƙasa da tazarar λ / 20, a cikin wiring ta cikin rami, da kuma jirgin ƙasa na multilayer "kyakkyawan grounding". ".Idan an kula da murfin tagulla da kyau, murfin tagulla ba wai kawai yana haɓaka halin yanzu ba, har ma yana taka rawar dual na tsoma baki.Saboda haka, a cikin babban mita mita, kada kuyi tunanin cewa ƙasa a wani wuri, wannan shine "wayar ƙasa", dole ne ta kasance ƙasa da tazarar λ / 20, a cikin wiring ta cikin rami, da kuma jirgin ƙasa na multilayer "kyakkyawan grounding". ".Idan an kula da murfin tagulla da kyau, murfin tagulla ba wai kawai yana haɓaka halin yanzu ba, har ma yana taka rawar dual na tsoma baki.
2. Biyu nau'i na jan karfe shafi
Gabaɗaya akwai hanyoyi guda biyu na asali don rufe tagulla, wato, babban yanki na jan ƙarfe da grid tagulla, sau da yawa ana tambayar cewa babban yanki na jan ƙarfe ko grid jan ƙarfe yana da kyau, ba mai kyau ba ne.
Me yasa?Large yanki na jan karfe shafi, tare da kara halin yanzu da kuma garkuwa dual rawa, amma babban yanki na jan karfe shafi, idan kalaman soldering, da hukumar iya karkatar sama, ko ma kumfa.Saboda haka, an rufe babban yanki na jan karfe, kuma ana buɗe ramuka da yawa gabaɗaya don rage kumfa ɗin tagulla.
Grid mai sauƙi da aka rufe da jan ƙarfe shine yafi tasirin garkuwar jiki, rawar da ke haɓaka halin yanzu yana raguwa, daga ra'ayi na zubar da zafi, grid yana da fa'ida (yana rage dumama saman jan ƙarfe) kuma yana taka rawa na garkuwar lantarki.Musamman don kewayawa na taɓawa, kamar yadda aka nuna a cikin adadi a ƙasa: Wajibi ne a nuna cewa grid ya ƙunshi layi na layi.Mun san cewa don da'irar, nisa na layin yana da daidai "tsawon wutar lantarki" zuwa mitar aiki na allon kewayawa (ainihin girman za'a iya raba shi ta hanyar mitar dijital daidai da mitar aiki, duba littattafai masu dacewa don cikakkun bayanai) .
Lokacin da mitar aiki ba ta da yawa, wataƙila layin grid ɗin ba su da amfani sosai, kuma da zarar tsawon wutar lantarki ya yi daidai da mitar aiki, yana da kyau sosai, kuma za ku ga cewa kewaye ba ta aiki yadda ya kamata kwata-kwata, kuma akwai sigina a ko'ina. wanda ke tsoma baki tare da tsarin.
Shawarar ita ce a zaɓi bisa ga tsarin tsarin da'ira, ba don riƙe wani abu ba.Saboda haka, babban mitar da'ira akan buƙatun tsangwama na grid mai manufa da yawa, ƙananan mitar da'ira tare da babban da'irar na yanzu da sauran cikakkiyar shimfidar tagulla da aka saba amfani da ita.