Chii chinonzi mhangura
Iyo inonzi kudira kwemhangura ndeyekushandisa nzvimbo isina kushandiswa pabhodhi redunhu senzvimbo yekutarisa uye wozoizadza nemhangura yakasimba.Idzi nzvimbo dzemhangura dzinonziwo kuzara kwemhangura.
Kukosha kwekuputira kwemhangura ndiko kuderedza kusagadzikana kwetambo yepasi uye kuvandudza kugona kwekudzivirira-kupindira;kuderedza kudonha kwemagetsi uye kuvandudza kushanda kwesimba remagetsi;kana yakabatana netambo yepasi, inogonawo kuderedza loop nzvimbo.
Zvakare nechinangwa chekuita kuti PCB ive isina kuremara sezvinobvira panguva yekutengesa, vazhinji vanogadzira PCB vanozodawo kuti PCB vagadziri vazadze nzvimbo yakavhurika yePCB nemhangura kana grid-yakafanana newaya dzepasi.Kana mhangura ikasabatwa zvakanaka, ichaita Kana pfuma isingakodzeri kurasikirwa, iko kupfekedzwa kwemhangura "kwakanakira kupfuura zvisingabatsiri" kana kuti "zvisina kunaka kupfuura zvakanakira" here?
Munhu wose anoziva kuti pasi pemamiriro epamusoro-soro, iyo yakagoverwa capacitance ye wiring pane yakadhindwa redunhu bhodhi ichashanda.Kana kureba kwakakura kupfuura 1/20 yeaya inowirirana yewavelength yeruzha frequency, antenna mhedzisiro ichaitika, uye ruzha ruchaburitswa kuburikidza newaya.Kana paine mhangura isina kudzika pasi yakadururwa muPCB, kudira kwemhangura kunova chishandiso chekuparadzira ruzha.
Nokudaro, munharaunda yepamusoro-frequency circuit, usafunga kuti tambo yepasi yakabatanidzwa pasi pane imwe nzvimbo.Iyi ndiyo "ground wire".Inofanira kunge iri pasi pe λ/20 kubaya maburi muwaya.Iyo pasi ndege ye laminate "ivhu rakanaka".Kana chifukidzo chemhangura chikabatwa zvakanaka, chifukidzo chemhangura hachingowedzera ikozvino, asiwo chinotora chikamu cheviri chekudzivirira kupindira.
Zvimiro zviviri zvemhangura yemhangura
Pane kazhinji nzira mbiri dzekutanga dzekupfekedza mhangura, dzinoti hombe-nzvimbo yekupfekedza mhangura uye grid copper.Inowanzobvunzwa kana yakakura-nzvimbo yemhangura yemhangura iri nani pane grid copper coating.Hazvina kunaka kuita generalize.
sei?Yakakura-nzvimbo yemhangura yemhangura ine mabasa maviri ekuwedzera ikozvino uye kudzivirira.Nekudaro, kana yakakura-nzvimbo yemhangura yakashongedzwa yakashandiswa kuzunguza solder, bhodhi rinogona kusimudza uye kunyange mablister.Nokudaro, nokuda kwemhangura yemhangura yakakura, ma grooves akawanda anowanzovhurwa kuti asunungure kuputika kwefoiri yemhangura.
Iyo yakachena yemhangura-yakapfeka gridi inonyanya kuvharidzira, uye mhedzisiro yekuwedzera ikozvino inoderedzwa.Kubva pakuona kwekupisa kupisa, grid yakanaka (inoderedza kupisa kwemhangura) uye inotamba imwe basa rekudzivirira kwemagetsi.
Kana iyo frequency yekushanda isiri yakanyanya, pamwe mhedzisiro yemitsara yegridi haina kunyatso kuoneka.Kamwe urefu hwemagetsi hunoenderana nehuwandu hwekushanda, hwakaipa zvikuru.Iwe uchaona kuti dunhu harishande nemazvo zvachose, uye sisitimu iri kubudisa kupindira kwese kwese.chiratidzo che.
Chirevo ndechekusarudza maererano nemamiriro ekushanda kwebhodhi redunhu rakagadzirwa, usabatirira pane chimwe chinhu.Nokudaro, ma-high-frequency circuits ane zvinodiwa zvakanyanya kune-multi-purpose grids kurwisana nekuvhiringidza, uye pasi-frequency circuits ine matunhu ane mhepo yakakura, yakadai semhangura inowanzoshandiswa.