6 matipi ekudzidzisa iwe kusarudza PCB zvikamu

1. Shandisa nzira yakanaka yekumisa (Kwakabva: Electronic Enthusiast Network)

Ita shuwa kuti dhizaini ine zvakakwana bypass capacitors uye ndege dzepasi. Paunenge uchishandisa dunhu rakabatanidzwa, iva nechokwadi chekushandisa yakakodzera decoupling capacitor pedyo nechiteshi chemagetsi kusvika pasi (zvichida ndege yepasi). Kugona kwakakodzera kweiyo capacitor kunoenderana neiyo chaiyo application, capacitor tekinoroji uye inoshanda frequency. Kana iyo bypass capacitor yakaiswa pakati pesimba uye pasi pini uye yakaiswa padyo neiyo chaiyo IC pini, iyo electromagnetic kuenderana uye susceptibility yedunhu inogona kuvandudzwa.

2. Govera virtual chikamu packaging

Dhinda bhiri rezvinhu (bom) kuti utarise iwo chaiwo zvikamu. Virtual zvikamu hazvina kurongedzerwa uye hazvizoendeswa kune iyo dhizaini nhanho. Gadzira bhiri rezvishandiso, uye wobva waona ese chaiwo ezvikamu mudhizaini. Izvo chete zvinhu zvinofanirwa kunge zviri simba uye zvikwangwani zvepasi, nekuti zvinoonekwa senge zvikamu, izvo zvinongogadziriswa munzvimbo ye schematic uye hazvizoendeswa kune marongerwo dhizaini. Kunze kwekunge ichishandiswa sezvinangwa zvekufananidza, zvikamu zvinoratidzwa muchikamu chechokwadi zvinofanirwa kutsiviwa neakavharirwa zvikamu.

3. Ita shuwa kuti une yakazara zvinyorwa zvinyorwa data

Tarisa uone kana paine data rakakwana mushumo yezvigadzirwa. Mushure mekugadzira bhiri rezvishandiso mushumo, zvinodikanwa kunyatso tarisa uye kupedzisa iyo isina kukwana mudziyo, mutengesi kana ruzivo rwemugadziri mune zvese zvinopinda.

 

4. Ronga maererano nechikamu label

Kufambisa kurongeka nekuona kwebhiri remidziyo, ita shuwa kuti nhamba dzechikamu dzakaverengwa zvakatevedzana.

 

5. Tarisa yakawandisa gedhi redunhu

Kazhinji kutaura, zvekupinza zvemagedhi ese asina basa anofanirwa kuve nemasaini ekubatanidza kudzivirira kuyangarara materminal ekuisa. Ita shuwa kuti watarisa ese asisadi kana kushaikwa eseketi egedhi, uye ese asina waya mapinda akabatana zvachose. Mune zvimwe zviitiko, kana iyo yekuisa terminal ikamiswa, iyo yese system haigone kushanda nemazvo. Tora iyo mbiri op amp iyo inowanzo shandiswa mukugadzira. Kana imwe chete yemaop amps ichishandiswa mune mbiri op amp IC zvikamu, zvinokurudzirwa kushandisa imwe op amp, kana kudzika iyo yekuisa iyo isina kushandiswa op amp, uye kuendesa yakakodzera kubatana kuwana (kana imwe pfuma) ) Feedback network kuona kuti chikamu chose chinogona kushanda zvakajairika.

Mune zvimwe zviitiko, maIC ane mapini anoyangarara anogona kusashanda nemazvo mukati meiyo yakatarwa. Kazhinji chete kana iyo IC mudziyo kana mamwe masuwo emuchina mumwe chete asiri kushanda munzvimbo yakazara-apo iyo inopinza kana kubuda iri pedyo kana mumagetsi njanji yechikamu, IC iyi inogona kusangana nezvinodiwa painoshanda. Simulation kazhinji haigone kubata mamiriro aya, nekuti modhi yekunyepedzera kazhinji haibatanidze zvikamu zvakawanda zveIC pamwe chete kutevedzera inoyangarara yekubatanidza maitiro.

 

6. Funga kusarudzwa kwechikamu chekuputira

Muchikamu chese chekudhirowa dhizaini, iyo chikamu chekurongedza uye nyika pateni sarudzo dzinoda kuitwa mudanho rekugadzirisa dzinofanirwa kutariswa. Heano mamwe mazano ekufunga nezve pakusarudza zvikamu zvinoenderana nechikamu chekurongedza.

Rangarira, pasuru iyi inosanganisira yemagetsi padhi yekubatanidza uye mechanical dimensions (x, y, uye z) yechikamu, ndiko kuti, chimiro chechikamu chemuviri nemapini anobatana nePCB. Paunenge uchisarudza zvikamu, iwe unofanirwa kufunga nezve chero kukwira kana kurongedza zvirambidzo zvingave zviripo pamusoro uye pasi pezvikamu zvekupedzisira PCB. Zvimwe zvikamu (zvakadai sepolar capacitors) zvinogona kunge zvine zvirambidzo zvepamusoro zvemusoro, izvo zvinoda kutariswa muchikamu chekusarudza maitiro. Pakutanga kwedhizaini, unogona kutanga wadhirowa dhizaini redunhu bhodhi chimiro, wobva waisa mamwe makuru kana chinzvimbo-chakakosha zvikamu (sezvibatanidza) zvauri kuronga kushandisa. Nenzira iyi, iyo chaiyo yekuona maonero edunhu bhodhi (pasina wiring) inogona kuoneka intuitively uye nekukurumidza, uye hukama hwekumisikidza uye chikamu chekukwirira kwebhodhi redunhu uye zvikamu zvinogona kupihwa zvakaringana. Izvi zvichabatsira kuve nechokwadi chekuti zvikamu zvinogona kuiswa zvakanaka mukati mekurongedza kwekunze (zvigadzirwa zvepurasitiki, chassis, chassis, nezvimwewo) mushure mekunge PCB yaunganidzwa. Fonera iyo 3D preview modhi kubva kune yekushandisa menyu kuti uongorore yese redunhu bhodhi