Le tsoelo-pele ea theknoloji ea elektronike, ho rarahana ha PCB (boto ea potoloho e hatisitsoengBoholo ba kopo bo na le nts’etsopele e potlakileng. Designers engaged in HF PCB must have relevant basic theoretical knowledge and rich experience in THE manufacture of HF PCB. Ka mantsoe a mang, ho rala le ho rala PCB ho lokela ho tsotelloa ho tsoa tikolohong e sebetsang khafetsa, e le ho rala PCB e loketseng haholoanyane.

Pampiri ena, wiring ea PCB, poleiti ea ho tjheseletsa le ho sebelisa mokhoa oa moralo oa koporo, pele ho tsohle, motheong oa wiring ea PCB, wiring, khoele ea motlakase le litlhoko tsa wiring ea lefatše ka sebopeho sa pampiri e hlahisa moralo oa Wiring ea PCB, ea bobeli ho tloha padeng e kopanyang le lesoba, boholo ba paditi ea PCB le sebopeho sa moralo ho moralo oa maemo, litlhoko tsa mekotla ea ts’ebetso ea PCB li hlahisoa ka moralo oa PCB, Finally, from the PCB copper coating skills and Settings introduced the PCB copper coating design, specific follow xiaobian to understand.

Qaqileng tlhaloso ea moralo moralo oa PCB wiring, sebaka tjheseletsa le barbotage koporo

Moralo oa wiring oa PCB

Wiring ke tlhokahalo e akaretsang ea moralo oa hf PCB o ipapisitse le moralo o utloahalang. Cabling e kenyelletsa cabling e ikemetseng le cabling ea letsoho. Hangata, ho sa tsotelehe hore na ho na le mela e mekae ea lipontšo, likhoele tsa motlakase li lokela ho etsoa pele bakeng sa mela ena ea matšoao. Kamora hore wiring e phetheloe, wiring ea mela ena ea matšoao e lokela ho hlahlojoa ka hloko le ho lokisoa kamora ho fetisa cheke, ebe likhoele tse ling li lokela ho ts’oaroa ka boiketsetso. Ka mantsoe a mang, motsoako oa wiring ea letsoho le o iketsang e sebelisoa ho phethela wiring ea PCB.

The following aspects should be paid special attention to during the wiring of hf PCB.

1. Tataiso ea wiring

Wiring ea potoloho e molemo ka ho fetisisa ho amohela mohala o otlolohileng ho latela tataiso ea lets’oao, ‘me 45 ° e robehileng mola kapa arc curve e ka sebelisoa ho phethela ntlha, e le ho fokotsa mochini oa kantle le ho kopanya bobeli – lipontšo tsa khafetsa. Wiring ea likhoele tsa maqhubu a phahameng e lokela ho ba e khuts’oane kamoo ho ka khonehang. Ho latela maqhubu a sebetsang a potoloho, bolelele ba mohala oa lets’oao bo lokela ho khethoa ka nepo, e le ho fokotsa mekhahlelo ea kabo le ho fokotsa tahlehelo ea lets’oao. Ha o etsa liphanele tse habeli, ho molemo ho tsamaisa likarolo tse peli tse haufi ka ho otloloha, ka tsela e kopaneng kapa e kobehileng ho hokahana. Qoba ho ts’oana, e leng ho fokotsang tšitiso e kopanetsoeng le ho kopanya likokoana-hloko.

Mehala ea maqhubu a maqhubu a phahameng le mela ea maqhubu a tlase e lokela ho aroloa ka hohle kamoo ho ka khonehang, mme mehato ea ho sireletsa e lokela ho nkuoa ha ho hlokahala ho thibela tšitiso e tšoanang. Bakeng sa tlhahiso ea lets’oao e fumanang e fokola, ho le bonolo ho kena-kenana le matšoao a kantle, o ka sebelisa terata ea lefats’e ho e sireletsa ho e lika-liketsa kapa ho etsa mosebetsi o motle oa ts’ireletso ea sehokelo sa maqhubu a phahameng. Parallel wiring should be avoided on the same level, otherwise distributed parameters will be introduced, which will affect the circuit. Haeba e ke ke ea qojoa, lesela la koporo le fatše le ka hlahisoa lipakeng tsa mela e ‘meli e tšoanang ho etsa mohala oa ho itšehla thajana.

In the digital circuit, for differential signal lines, should be in pairs, as far as possible to make them parallel, close to some, and the length is not much different.

2. Sebopeho sa wiring

Ka wiring ea PCB, bophara bo fokolang ba wiring bo khethoa ke matla a mamarello pakeng tsa terata le substrate ea insulator le matla a hona joale a phallang ka terata. Ha botenya ba foil ea koporo e le 0.05mm mme bophara ke 1mm-1.5mm, 2A hajoale e ka fetisoa. Mocheso ha oa lokela ho ba holimo ho 3 ℃. Ntle le likhoele tse ikhethileng, bophara ba wiring e le ngoe bo lokela ho ts’oana ka hohle kamoo ho ka khonehang. Potolohong ea maqhubu a phahameng, karohano ea wiring e tla ama boholo ba matla a abuoang le ho se sebetse hantle, mme ka hona e ama tahlehelo ea lets’oao, botsitso ba potoloho le tšitiso ea lets’oao. Ka potoloho e fetohang e potlakileng, karohano ea terata e tla ama nako ea phetisetso ea lets’oao le boleng ba sebopeho. Ka hona, karohano e nyane ea wiring e lokela ho ba kholo ho feta kapa ho lekana le 0.5 mm. Ho molemo ho sebelisa mela e pharalletseng bakeng sa likhoele tsa PCB ha ho khonahala.

There should be a certain distance between the printed wire and the edge of the PCB (no less than the thickness of the plate), which is not only easy to install and machining, but also improve the insulation performance.

Ha wiring e ka hokahanngoa feela ho potoloha selikalikoe se seholo sa mohala, re lokela ho sebelisa mohala o fofang, ke hore, o hokahane ka kotloloho le mohala o mokhutšoane ho fokotsa tšitiso e tlisoang ke wiring e telele.

Potoloho e nang le likarolo tse hlokolosi tsa matla a khoheli e ela hloko matla a khoheli a e potileng, ha ho kobeha ha wiring ea potoloho e maqhubu a phahameng ho bonolo ho chorisa leqhubu la motlakase. Haeba likarolo tsa matla a khoheli li behiloe ho PCB, e lokela ho netefatsa hore ho na le sebaka se itseng lipakeng tsa sekhutlo sa wiring le eona.

Ha ho crossover e lumelloang maemong a ts’oanang a wiring. Bakeng sa mohala o ka tšelang, o ka sebelisa “ho cheka” ka mokhoa oa “leqeba” ho rarolla, etella pele lead e itseng ho tsoa ho tse ling ho hanyetsa, bokhoni, tlhahlobo joalo-joalo sesebelisoa se etella pele lekhalo la maoto “drill” nakong e fetileng, kapa ho tloha pheletsong ea motsamao o itseng o ka tšelang “leqeba” o fetileng. Maemong a ikhethileng moo potoloho e rarahaneng haholo, ho nolofatsa moralo, ho lumelloa hape ho rarolla bothata ba crossover ka ho kopanya terata.

Ha maqhubu a phahameng a sebetsa ka maqhubu a phahameng, ts’ebetso ea impedance le phello ea antenna ea wiring le eona e lokela ho tsotelloa.

Hobane qetellong mofani o fetotse tumellano ea pejana mme a hloka hore sebopeho sa sebopeho le ho beoa joalo ka ha li hlalositsoe ke bona, ba tlameha ho fetola sebopeho ho setšoantšo se ka ho le letona. Ebile, PCB eohle ke 9cm x 6cm feela. Ho thata ho fetola sebopeho sa boto ho latela litlhoko tsa bareki, ka hona karolo ea mantlha ea boto ha ea ka ea fetoloa qetellong, empa likarolo tsa pheripheral li fetotsoe ka nepo, haholo-holo boemo ba lihokelo tse peli le tlhaloso tsa lithakhisa li fetotsoe.

Empa moralo o mocha o hlakile hore o bakile mathata moleng, mohala oa mantlha o boreleli o ile oa ba moferefere hanyane, bolelele ba mola bo ile ba eketseha, empa hape o ile a tlameha ho sebelisa masoba a mangata, bothata ba mohala bo eketsehile haholo.

Qaqileng tlhaloso ea moralo moralo oa PCB wiring, sebaka tjheseletsa le barbotage koporo

It is clear from this example that layout differences can have an impact on PCB design.

Qaqileng tlhaloso ea moralo moralo oa PCB wiring, sebaka tjheseletsa le barbotage koporo

3. Litlhoko tsa wiring bakeng sa likhoele tsa motlakase le likhoele tsa fatše

Eketsa bophara ba thapo ea motlakase ho latela maemo a fapaneng a sebetsang. Hf PCB e lokela ho amohela sebaka se seholo terata ea mobu le sebopeho moeling oa PCB ka hohle kamoo ho ka khonehang, e ka fokotsang tšitiso ea lets’oao la kantle ho potoloho; Ka nako e ts’oanang, terata e matla ea PCB e ka ba le kamano e ntle le khetla, e le hore matla a motlakase a PCB a haufi le matla a lefatše. Mokhoa oa fatše o lokela ho khethoa ho latela maemo a nnete. Ho fapana le potoloho ea maqhubu a tlase, thapo ea mochini oa maqhubu a phahameng e lokela ho ba haufi kapa ho theola lintlha tse ngata. Thapo ea mochini e lokela ho ba e khuts’oane le e tenya ho fokotsa tšitiso ea mobu, ‘me hajoale e lumellehang e lokela ho ba makhetlo a mararo a hona joale a sebetsang. Sebui se tiisa terata se lokela ho hokahanngoa le ntlha ea matla a seholisa matla a PCB, u se ke ua theha mabaka.

Ts’ebetsong ea wiring e ntse e lokela ho ba ka nako ea senotlolo se ts’oanelang sa wiring, esere oa pheta wiring makhetlo a mangata. Ho li notlela, tsamaisa taelo ea EditselectNet ho khetha E notletsoe ho thepa e se nang mehala.