Ezi ngqwalaselo zilandelayo zihlala zithathelwa ingqalelo xa kuyilwa izinto zePCB.

1. Ngaba Ibhodi PCB shape match the whole machine?

2. Ngaba isithuba phakathi kwezinto sisengqiqweni? Ngaba kukho inqanaba okanye inqanaba lempixano?

3. Ngaba i-PCB kufuneka yenziwe? Ngaba umda wenkqubo ugcinwe? Are mounting holes reserved? How to arrange the positioning holes?

4. Uyibeka njani kwaye ushushu imodyuli yamandla?

5. Ngaba kufanelekile ukubuyisela izinto ezifuna ukubuyiselwa endaweni yazo rhoqo? Ngaba izinto ezinokuhlengahlengiswa kulula ukuzilungisa?

6. Ngaba umgama phakathi kwento eshushu kunye nezinto zokufudumeza ziqwalaselwe?

7. Injani ukusebenza kwe-EMC yebhodi yonke? How can layout effectively enhance anti-interference ability?

Kwingxaki yesithuba phakathi kwezinto kunye nezinto, ngokusekwe kwiimfuno zomgama zeephakeji ezahlukeneyo kunye neempawu zeAltium Designer uqobo, ukuba ingxaki inyanzelisiwe yimigaqo, ukuseta kunzima kakhulu kwaye kunzima ukufezekisa. Umgca utsaliwe kumaleko woomatshini ukubonisa ubungakanani bangaphandle bezinto, njengoko kubonisiwe kumzobo 9-1, ukuze xa amanye amacandelo esondela, isithuba esikufutshane siyaziwa. Oku kuyasebenza kakhulu kubaqalayo, kodwa ikwavumela abaqalayo ukuba baphuhlise imikhwa elungileyo yoyilo lwe-PCB.

Imiqobo kulungelelwaniso lwecandelo lePCB

Umzobo 9-1 oomatshini abancedisayo boomatshini

Ngokusekwe kwezi ngqwalaselo zingentla kunye nohlalutyo, imigaqo-nkqubo eqhelekileyo yokuma kwePCB inokuhlelwa ngolu hlobo lulandelayo.

Umgaqo wolungiselelo lwento

1. Phantsi kweemeko eziqhelekileyo, onke amacandelo kufuneka alungiswe kumgangatho ofanayo we-PCB. Kuphela xa icandelo eliphezulu lixinene, ezinye izinto ezinokuphakama okulinganiselweyo kunye nexabiso eliphantsi le-calorific (njengokumelana ne-chip, i-chip capacitance, i-chip IC, njl.

2. On the premise of ensuring the electrical performance, the components should be placed on the grid and arranged parallel or vertically to each other in order to be neat and beautiful. Phantsi kweemeko eziqhelekileyo, izinto azivunyelwanga ukugqagqana, ulungelelwaniso lwezinto kufuneka lubumbane, izinto zokufaka kunye nezinto ezikhutshiweyo ngaphandle kwezinye, azibonakali njenge-crossover.

3, kunokubakho amandla ombane aphezulu phakathi kwezinye izinto okanye iingcingo, kufuneka anyuse umgama wabo, ukuze angabangeli ngengozi isekethe emfutshane ngenxa yokukhutshwa, ukonakala, ubeko kangangoko kunokwenzeka ukunika ingqalelo ubeko lwezi ndawo zesithuba.

4. Izinto ezinamandla ombane aphezulu kufuneka zicwangciswe kangangoko kunokwenzeka kwiindawo ezingafikeleleki lula ngesandla ngexesha lokulungisa ingxaki.

5, located at the edge of the plate components, should try to do two plate thickness from the edge of the plate.

6, izinto kufuneka zisasazwe ngokulinganayo kwibhodi iphela, hayi le ndawo ishinyeneyo, enye indawo evulekileyo, ukuphucula ukuthembeka kwemveliso.

Follow the layout principle of signal direction

1.

2. Ubume beekhomponenti kufuneka zilungele ukuhamba kwesiginali, ukuze isiginali igcine icala elifanayo kangangoko kunokwenzeka. Kwiimeko ezininzi, ukuhamba kwesiginali kulungiswe ukusuka ekhohlo ukuya ekunene okanye ukusuka phezulu kuye ezantsi, kwaye izinto ezinxibelelene ngokuthe ngqo kwiitheminali zokufaka kunye nezokuphuma kufuneka zibekwe kufutshane negalelo kunye nemveliso yezihlanganisi okanye izihlanganisi.

Uthintelo longenelelo lwe-electromagnetic

Imiqobo kulungelelwaniso lwecandelo lePCB

Umzobo 9-2 Ubeko lwe-inductor kunye ne-inductor ngokungqinelanayo ukuya kuma-90 degrees

(1) Izinto ezinamacala anamandla emitha ye-electromagnetic kunye nezinto ezinemvakalelo ephezulu yokungeniswa kwe-electromagnetic, umgama phakathi kwazo kufuneka wonyuswe, okanye ikhuselo lokukhusela kufuneka liqwalaselwe ukukhusela.

(2) Try to avoid high and low voltage components mixed with each other and strong and weak signal components interlaced together.

(3) for components that will produce magnetic fields, such as transformers, loudspeakers, inductors, etc., attention should be paid to reducing the cutting of magnetic lines on printed wires when layout, and the magnetic field direction of adjacent components should be perpendicular to each other to reduce the coupling between each other. Umzobo 9-2 ubonakalisa ilungiselelo labangenisi kwi-90 ° ngokungafaniyo kwi-inductor.

(4) Ukuthintela imithombo yokuphazamiseka okanye iimodyuli eziphazamisekileyo ngokulula, ikhuselo lokukhusela kufuneka lenziwe kakuhle. Umzobo 9-3 ubonakalisa ukucwangciswa kwekhuselo lokukhusela.

Ukucinezelwa kongenelelo lobushushu

(1) Izinto ezivelisa ubushushu kufuneka zibekwe kwindawo efanelekileyo yokuhambisa ubushushu. Ukuba kukho imfuneko, irediyetha eyahlukileyo okanye ifeni encinci inokusetwa ukunciphisa ubushushu kunye nokunciphisa ifuthe kwizinto ezingabamelwane, njengoko kubonisiwe kumzobo 9-4.

(2) Ezinye iibhloko ezihlanganisiweyo zamandla aphakamileyo, iityhubhu ezinamandla amakhulu, izixhobo zokumelana nomoya, njl.

Imiqobo kulungelelwaniso lwecandelo lePCB

Umzobo 9-3 Ukucwangcisa ukhuseleko

Imiqobo kulungelelwaniso lwecandelo lePCB

Umzobo 9-4 Ukuchithwa kobushushu kulwakhiwo

(3) Izinto ezinobuthathaka obushushu kufuneka zisondele kwinto elinganisiweyo kwaye kude nendawo enamaqondo aphezulu obushushu, ukuze zingachaphazeleka ngamanye amandla afanayo afudumeleyo kwaye zibangele ukungasebenzi.

(4) Xa into ibekwe kumacala omabini, into yokufudumeza ayifakwanga kumaleko asezantsi.

Umgaqo wokuhlengahlengiswa kwecandelo

Ubeko lwezinto ezinokuhlengahlengiswa ezinje ngee-potentiometers, ii-capacitors eziguqukayo, ii-coil ze-inductance ezinokulungelelaniswa kunye nokutshintsha kwezinto ezincinci kufuneka ziqwalasele iimfuno zokwakheka komatshini uphela: ukuba umatshini uhlengahlengisiwe ngaphandle, isikhundla sawo kufuneka silungelelaniswe nendawo yeqhina lokulungisa kwi Iphaneli yesisu Kwimeko yohlengahlengiso kumatshini, kufuneka lubekwe kwi-PCB apho kulula ukulungelelanisa.