Tloaelo Fr-4 Potoloho Board Pcb Board
Melao ea Motheo ea PCB Layout
1. Sebopeho ho ea ka mochine oa potoloho, lipotoloho tse amanang le tsona tse hlokomelang mosebetsi o tšoanang li bitsoa module, likarolo tsa mochine oa potoloho li lokela ho amohela molao-motheo oa mahloriso a haufi, 'me potoloho ea digital le potoloho ea analog e lokela ho aroloa;
2. Lisebelisoa le lisebelisoa li tlameha ho kenngoa ka har'a 1.27mm ho pota-pota masoba a sa keneng joalo ka masoba a behang le masoba a tloaelehileng, 'me ha ho likarolo tse tla kenngoa ka har'a 3.5mm (bakeng sa M2.5) le 4mm (bakeng sa M3) ho pota-pota masoba a kang likurufu;
3. Qoba ho beha vias ka tlase likarolo tse kang tsekaletseng mountors resistors, inductors (plug-ins), le capacitors electrolytic ho qoba lipotoloho khutšoanyane pakeng tsa vias le karolo khetla ka mor'a leqhubu soldering;
4. Sebaka se pakeng tsa ka ntle ho karolo le moeli oa boto ke 5mm;
5. Sebaka se pakeng tsa bokantle ba karolo ea karolo e behiloeng le ka ntle ho karolo e haufi e behiloeng e kholo ho feta 2mm;
6. Likarolo tsa likhetla tsa tšepe le likarolo tsa tšepe (mabokose a sireletsang, joalo-joalo) a ke ke a ama likarolo tse ling, 'me a ke ke a ba haufi le mela le liphahlo tse hatisitsoeng,' me sebaka se lokela ho ba seholo ho feta 2mm.Boholo ba masoba a ho beha, likoti tsa ho kenya li-fasteners, masoba a elliptical le masoba a mang a lisekoere ka poleiti e kholo ho feta 3mm ho tloha moeling oa poleiti;
7. Ntho e futhumatsang e ke ke ea e-ba haufi le terata le karolo ea mocheso;mocheso o phahameng oa mocheso o lokela ho ajoa ka ho lekana;
8. Sesebelisoa sa matla se lokela ho hlophisoa ho pota-pota boto e hatisitsoeng ka hohle kamoo ho ka khonehang, 'me li-terminals tsa libese tse amanang le motlakase li lokela ho hlophisoa ka lehlakoreng le le leng.Tlhokomelo e khethehileng e lokela ho nkoa e le hore u se ke ua hlophisa li-sockets tsa matla le li-connectors tse ling tse rekisoang pakeng tsa li-connectors, e le hore ho be bonolo ho etsa soldering ea li-sockets le li-connectors, le moralo le ho tlama lithapo tsa matla.Karohano ea litlhophiso tsa li-sockets le li-welding li lokela ho nkoa e le ho thusa ho kenya le ho tlosoa ha li-plug tsa matla;
9. Tokiso ea likarolo tse ling:
Likarolo tsohle tsa IC li hokahane ka lehlakoreng le le leng, polarity ea likarolo tsa polar e tšoailoe ka ho hlaka, 'me letšoao la polarity letlapeng le le leng le hatisitsoeng ha lea lokela ho ba litsela tse fetang tse peli.Ha litsela tse peli li hlaha, litsela tse peli li perpendicular ho tse ling;
10. The wiring ka boto e lokela ho ba hantle le letso-letso.Ha phapang ea letsoalo e le kholo haholo, e lokela ho tlatsoa ka foil ea koporo ea letlooeng, 'me letlooeng le lokela ho ba kholo ho feta 8mil (kapa 0.2mm);
11. Ha hoa lokela ho ba le likoti holim'a li-patch pads, e le ho qoba ho lahleheloa ke pente ea solder le ho etsa hore likarolo li rekisoe.Mehala ea bohlokoa ea matšoao ha e lumelloe ho feta lipakeng tsa li-socket pins;
12. Patch e tsamaisana le unilaterally, tataiso ea sebopeho e tšoana, 'me tataiso ea ho paka e tšoana;
13. Bakeng sa lisebelisoa tse nang le polarity, tataiso ea polarity marking ka boto e le 'ngoe e lokela ho ba e tsitsitseng ka hohle kamoo ho ka khonehang.
Melao ea Tsamaiso ea Karolo ea PCB
1. Sebakeng seo sebaka sa marang-rang se ka tlaase ho kapa se lekanang le 1mm ho tloha moeling oa PCB, 'me ka hare ho 1mm ho pota-pota sekoti se ntseng se phahama, mohala o thibetsoe;
2. Mohala oa motlakase o lokela ho ba bophara ka hohle kamoo ho ka khonehang 'me ha oa lokela ho ba ka tlase ho 18mil;bophara ba mohala oa lets'oao ha boa lokela ho ba tlase ho 12mil;li-cpu input le line line ha lia lokela ho ba ka tlase ho 10mil (kapa 8mil);sebaka sa mela ha sea lokela ho ba ka tlase ho 10mil;
3. E tloaelehileng ka tsela e seng ka tlase ho 30mil;
4. Dual in-line: pad 60mil, aperture 40mil;
Mohanyetsi oa 1 / 4W: 51 * 55mil (0805 holim'a thaba);ha in-line, pad ke 62mil, le aperture ke 42mil;
Electrodeless capacitor: 51 * 55mil (0805 holim'a thaba);ha e kentsoe ka ho toba, pad ke 50mil, le aperture ke 28mil;
5.Hlokomela hore terata ea matla le terata ea fatše e lokela ho ba radial ka hohle kamoo ho ka khonehang, 'me mohala oa pontšo ha oa lokela ho koaloa.
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