Televave saosaoa PCB e foia ai O tulafono nei e iva:

Tulafono 1: Televave saosaoa faʻailoga faʻasolosolo puipui puipui

I le televavave televave PCB design, ki maualuga-saoasaoa laina faʻailo e pei o uati tatau ona puipuia. Afai latou te le puipuia pe na o se vaega puipuia, EMI leakage o le a mafua. E fautuaina e tatau ona viliina uaea puipuia mo le faʻavaeina ile 1000mil uma.

Tulafono 2: tulafono faʻasolosolo tapunia mo le saosaoa faʻailo

Tapuni-matasele tataʻiga tulafono mo maualuga-saosaoa faʻailo

O a tulafono a EMI mo le televavave PCB ata

Tapuni-matasele tataʻiga tulafono mo maualuga-saosaoa faʻailo

Ona o le faʻateleina tele o PCB laupapa, tele PCB LAYOUT inisinia e faigofie ona faia se mea sese i le faʻagasologa o uaea. I se isi faaupuga, maualuga-saosaoa faʻailo faailo pei o uati faailo faatupuina tapunia-loop taunuuga pe a tele-vaega PCB uaea. O na tapunia-matasele taunuʻuga o le a faʻatupuina mama antenna ma faʻateleina EMI radiation malosi.

Tulafono 3: tatala-matasele tataʻiga tulafono mo maualuga-saosaoa faʻailo

Tatala-matasele tataʻiga tulafono mo maualuga-saosaoa faailo

O a tulafono a EMI mo le televavave PCB ata

Tatala-matasele tataʻiga tulafono mo maualuga-saosaoa faailo

O le tulafono 2 na taʻua ai o le tapunia-matasele o le televave o faailo o le a mafua ai le EMI radiation, ae o le tatala-loop o le a mafua ai foi le EMI radiation.

I fesootaiga televavave saini, e pei o le uati faailo, o le taimi e maua ai le iʻuga o matala matala i le alualu i luma o le tele-layer PCB, linear antenna o le a fausiaina ma EMI radiation malosi o le a faʻateleina.

Tulafono 4: uiga faʻafuaseʻi faʻaauauina tulafono mo maualuga-saini faʻailo

Faʻataʻitaʻiga faʻafuaseʻi tulafono faʻaauau mo maualuga-saini faʻailo

O a tulafono a EMI mo le televavave PCB ata

Faʻataʻitaʻiga faʻafuaseʻi tulafono faʻaauau mo maualuga-saini faʻailo

Mo faʻavavevave saini, o le faʻaauau o uiga iloga e tatau ona mautinoa pe a fesuiaʻi i le va o faaputuga; a leai, EMI radiation o le a faʻateleina. O lona uiga, o le lautele o le lautele o le tutusa laiga e tatau ona faʻaauau, ma o le faʻafesoʻotaʻiga o laina o vaega eseese e tatau ona faʻaauau.

Tulafono 5: faʻatonutonuina tulafono faʻatonuga mo maualuga-saosaoa PCB mamanu

Faʻataʻitaʻiga faʻafuaseʻi tulafono faʻaauau mo maualuga-saini faʻailo

O a tulafono a EMI mo le televavave PCB ata

O uaea i le va o lua sosoʻo tuaoi e tatau ona faʻasolosolo agai i luga. A leai, crosstalk ono tupu ma EMI radiation ono faʻateleina. I se faapuupuuga, sosoʻo fesoʻotaʻiga faapipii mulimuli atu i se faalava, faalava ma tūsaʻo uaea taʻiala, ma tūsaʻo uaea mafai ona taofia crosstalk i le va o laina.

Tulafono 6: Topology tulafono i maualuga-televave PCB ata

O a tulafono a EMI mo le televavave PCB ata

Faʻataʻitaʻiga faʻafuaseʻi tulafono faʻaauau mo maualuga-saini faʻailo

I le televave televave PCB design, o le faʻatonutonuina o le matagaluega laupapa faʻafitauli impedance ma le mamanu o topological fausaga i lalo o le tele-avega faʻatonu fuafua le manuia poʻo le le aoga o le oloa.

O le Daisy chain topology o loʻo faʻaalia i le ata, e masani ona aoga mo nai Mhz. E fautuaina e faʻaaoga le fetu symmetric fausaga i le pito i tua i le televave televave mamanu.

Tulafono 7: Resonance tulafono o le laina umi

Resonance tulafono o le laina umi

O a tulafono a EMI mo le televavave PCB ata

Resonance tulafono o le laina umi

Siaki pe o le umi o le laina faʻailo ma le tele o taimi o le faʻailoga aofia ai resonance, e pei o le taimi o le uʻamea umi o le integer taimi o faʻailo wavelength 1/4, o lenei uaea o le a maua resonance, ma resonance o le a susulu galu eletise, maua faʻalavelave.

Tulafono 8: Backflow auala tulafono

Tulafono auala i tua

O a tulafono a EMI mo le televavave PCB ata

Tulafono auala i tua

Uma saosaoa faailo saosaoa tatau ona i ai se lelei auala backflow. Faʻaititia le auala i tua o faʻailoga saosaoa pei o uati. A leai o le radiation o le a matua faʻateleina, ma o le aofaʻi o radiation e faʻatusatusa i le eria o loʻo siʻomia e le faʻailoga ala ma le auala i tua.

Tulafono 9: Meafaʻavae decoupling capacitor tulaga faʻatulagaina

Tulafono mo le tuʻuina o decoupling capacitors o masini

O a tulafono a EMI mo le televavave PCB ata

Tulafono mo le tuʻuina o decoupling capacitors o masini

O le nofoaga o le decoupling capacitor e taua tele. E le mafai ona faʻamalieina le faʻatulagaina ole decoupling ile faʻatutuina saʻo. O le mataupu faʻavae o le: latalata i le paoa sapalai paipa, ma le paoa sapalai o le eletise ma le eleele faʻataʻamilomiloina e le vaega laʻititi.