Na imewe nke PCB mbadamba, na mmụba ngwa ngwa, a ga-enwe ọtụtụ nnyonye anya nke dị iche na nhazi nke bọọdụ PCB dị ala. Enwere isi akụkụ anọ nke nnyonye anya, gụnyere mkpọtụ ike ọkọnọ, nnyonye anya eriri nnyefe, njikọta na nnyonye aka elektrọnik (EMI).

Otu esi edozi nnyonye anya nke imebe PCB dị elu

I. Enwere ọtụtụ ụzọ iji kpochapụ mkpọtụ ọkọnọ ike na imebe PCB

1. Lezienụ anya na oghere dị na bọọdụ: oghere site na oghere na -eme ka mkpa ọkụ eletrik dị mkpa ka etch oghere iji hapụ oghere maka oghere. Ọ bụrụ na oghere nke ọkọnọ ọkụ eletrik buru oke ibu, ọ ga -emetụta mkpọchi mgbaama, a na -amanye mgbama ka ọ gafere, mpaghara loop na -abawanye, mkpọtụ na -abawanye. N’otu oge ahụ, ọ bụrụ na agbakọtala ọtụtụ ahịrị nrịba n’akụkụ oghere ma kesaa otu loop, ihe mgbochi nkịtị ga -ebute crosstalk. Lee ọgụgụ 2.

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2. Ahịrị njikọ ahụ chọrọ ala zuru oke: akara ọ bụla kwesịrị ịnwe akara aka nke aka ya, na mpaghara loop nke mgbama na loop pere mpe enwere ike, ya bụ, akara na loop kwesịrị ịdị nhata.

3. ike analog na dijitalụ ikewapụ: ngwaọrụ ugboro ugboro na-enwekarị mmetụta dị ukwuu maka mkpọtụ dijitalụ, yabụ ekwesịrị kewaa ha abụọ, jikọtara ọnụ n’ọnụ ụzọ ọkụ, ma ọ bụrụ na mgbama gafere akụkụ analog na dijitalụ nke okwu, ị nwere ike idobe loop n’ofe mgbama iji belata mpaghara akaghị. Ogologo oge analog-dijitalụ ejiri maka akara mgbama.

Otu esi edozi nnyonye anya nke imebe PCB dị elu

4. Zere nchikota nke ike dị iche n’etiti akwa dị iche iche: ma ọ bụghị, mkpọtụ sekit nwere ike ịgafe ngwa ngwa site na njikọta nke parasitic capacitive.

5. mwepụ nke ihe ndị nwere mmetụta: dị ka PLL.

6. Debe ahịrị ike: Iji belata mkpọtụ mgbaama, dobe akara ike na nsọtụ akara iji belata mkpọtụ.

Kedu otu esi edozi nnyonye anya nke imebe PCB dị elu?

Ii. Ụzọ iji kpochapụ nnyonye anya nnyefe na imebe PCB bụ ndị a:

(a) Zere nkwụsị nkwụsị nke eriri nnyefe. Ebe nkwụsị ihe nkwụsị bụ ebe nnyefe ahịrị nnyefe, dị ka akụkụ kwụ ọtọ, site na oghere, wdg, kwesịrị izere ruo oke o kwere mee. Ụzọ: Iji zere nkuku kwụ n’ahịrị, ka enwere ike ịga na 45 ° n’akuku ma ọ bụ arc, nnukwu akụkụ nwekwara ike ịbụ; Jiri ole na ole n’ime oghere dị ka o kwere mee, n’ihi na nke ọ bụla site na oghere bụ nkwụsị nkwụsị. Ihe nrịba ama sitere na mpụta dị elu na -ezere ịgafe akwa ime na nke ọzọ.

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(b) Ejila ahịrị osisi. N’ihi na ahịrị ikpo ọ bụla bụ isi iyi nke mkpọtụ. Ọ bụrụ na ahịrị ikpo ahụ dị mkpụmkpụ, enwere ike ijikọ ya na njedebe nke eriri nnyefe; Ọ bụrụ na ahịrị ikpo ahụ dị ogologo, ọ ga -ewere ahịrị nnyefe dị ka isi mmalite ya wee mepụta nnukwu echiche, nke ga -agbagha nsogbu ahụ. Akwadoro ka ị ghara iji ya.

3. Enwere ọtụtụ ụzọ iji kpochapụ crosstalk na imewe PCB

1. Ogo nke ụdị crosstalk abụọ na -abawanye site na mmụba nke impedance ibu, yabụ ahịrị akara nwere mmetụta na nnyonye anya nke crosstalk kpatara kwesịrị ịkwụsị ya nke ọma.

2, dị ka o kwere mee iji mee ka anya dị n’etiti ahịrị mgbaàmà, nwere ike belata crosstalk capacitive. Njikwa ala, ịkpa ókè n’etiti eriri ọkụ (dị ka ahịrị mgbama na -arụ ọrụ na ahịrị ala maka ikewapụ, ọkachasị na steeti ima elu n’etiti ahịrị mgbama na ala ruo etiti oge) ma belata ntinye ụzọ.

3. Enwekwara ike ibelata crosstalk nke ọma site na ịtinye eriri ala n’etiti ahịrị mgbama dị n’akụkụ, nke a ga -ejikọrịrị na nguzo ogologo nkeji iri na ise ọ bụla.

4. Maka ikiri ụkwụ nwere ezi uche, ekwesịrị ibelata mpaghara akaghị ma, ọ bụrụ na enwere ohere, a ga -ewepụ aka ahụ.

5. Zere akara ịkekọrịta mgbaama.

6, attentionaa ntị na iguzosi ike n’ihe mgbaàmà: onye nrụpụta kwesịrị ịghọta njikọ njedebe na usoro ịgbado ọkụ iji dozie iguzosi ike nke mgbaàmà. Ndị na -emepụta ihe na -eji usoro a nwere ike ilekwasị anya n’ogo microstrip nke mkpuchi foil ọla iji nweta ezigbo arụmọrụ nke iguzosi ike n’ezi ihe. Maka sistemụ nwere nnukwu njikọta na nhazi nkwukọrịta, onye nrụpụta nwere ike iji PCB dị ka ọnụ.

4. Enwere ọtụtụ ụzọ iji wepu nnyonye aka elektrọnik na imebe PCB

1. Belata loops: loop ọ bụla dabara na antenna, yabụ anyị kwesịrị ibelata ọnụ ọgụgụ loops, mpaghara loops na mmetụta antenna nke loops. Gbaa mbọ hụ na mgbaama nwere naanị otu ụzọ loop n’akụkụ abụọ ọ bụla, zere loope wuru wee jiri akwa ike mgbe ọ bụla enwere ike.

2, nzacha: n’ahịrị ike yana n’ahịrị akara nwere ike were nzacha iji belata EMI, enwere ụzọ atọ: decoupling capacitor, EMI filter, magnetik components. E gosipụtara nzacha EMI na.

Otu esi edozi nnyonye anya nke imebe PCB ugboro ugboro？

3, ihe mkpuchi. N’ihi ogologo okwu a gbakwunyere ọtụtụ isiokwu na -echebe isiokwu, enweghịzi nkọwa mmalite.

4, gbalịa ibelata ọsọ nke ngwaọrụ ugboro ugboro dị elu.

5, na -abawanye mbadamba dielectric nke bọọdụ PCB, nwere ike igbochi akụkụ ugboro ugboro dị ka eriri nnyefe dị nso na bọọdụ ahụ ịpụta n’èzí; Dịkwuo ọkpụrụkpụ nke bọọdụ PCB, belata ọkpụrụkpụ nke eriri microstrip, nwere ike igbochi ịgbasa ahịrị electromagnetic, nwekwara ike igbochi radieshon.