Lolomi laupapa matagaluega (PCB) is the support of circuit components and components in electronic products. It provides the electrical connection between circuit components and components. It is the most basic component of various electronic equipment, and its performance is directly related to the quality of electronic equipment. Faʻatasi ai ma le atinaʻeina o faʻamatalaga sosaiete, o ituaiga uma o oloa eletise e masani ona galulue faʻatasi, ma o le faʻalavelave i le va o latou e sili atu ma sili atu ona ogaoga. O le mea lea, electromagnetic ogatasi avea ma ki i le faʻagaioiga masani o se eletise elemeni. E faʻapena foi, ma le atinaʻeina o tekonolosi eletise, o le maualuga o PCB ua faʻateleina maualuga ma maualuga. O le tulaga lelei o PCB mamanu ei ai se aafiaga tele i luga o le faʻalavelave ma le tetee-faʻalavelave gafatia o matagaluega. I le faʻaopopoga i le filifiliga o vaega ma faʻataʻamilosaga tisaini, lelei PCB faʻapipiʻi o se mea taua tele foi i le electromagnetic ogatasi mo sili lelei faʻatinoina o eletise matagaluega.

Since the PCB is an inherent component of the system, enhancing electromagnetic compatibility in the PCB wiring does not incur additional costs to the final product completion. Peitai, i le lolomiina matagaluega laupapa matagaluega, oloa tisaina masani ona na ona uaʻi atu e faʻaleleia le tele, faʻaititia le nofoia o avanoa, faigofie gaosiga, poʻo le sailiga o le matagofie, toniga faʻatulagaina, le amanaʻiaina le aʻafiaga o le matagaluega faʻataʻatiaga luga electromagnetic ogatasi, ina ia tele numera o faʻailo faailoilo i le avanoa e fausia ai faʻasoesa. O le le lelei PCB uaea mafai mafua ai sili atu emc faafitauli nai lo le mafai ona aveʻesea. I le tele o tulaga, e oʻo lava i le faʻaopopoina o filiga ma vaega e le fofoina nei faʻafitauli. Mulimuli ane, na toe faʻafou le laupapa atoa. O le mea lea, o le atiaʻe lelei amio lelei PCB faʻapipiʻiina o le sili lea ona taugata-lelei auala e amata ai.

Tasi le mea e maitau o le leai o ni tulafono faʻatapulaʻa mo PCB faʻapipiʻi ma leai ni tulafono faʻapitoa e ufiufi uma PCB uaea. Tele PCB faʻapipiʻiina e faʻatapulaʻaina i le tele o le matagaluega laupapa ma le numera o apamemea-ofu ofu. Nisi metotia metotia e mafai ona faʻaaogaina i le tasi taʻamilosaga ae le o leisi faʻalagolago i le poto masani o le faʻamaonia inisinia. Peitai, e iai tulafono lautele, e talanoaina i lalo.

Mo lelei lelei mamanu. PCB ma tau maualalo tatau tatau ona mulimuli i le mulimuli lautele mataupu faʻavae:

2. Faʻatulagaina o vaega i luga ole PCB

Muamua lava, e tatau ona mafaufau i le tele PCB tele tele. A o le tele PCB lapoʻa, o le lolomiga laina e umi, o le faʻafetaui faateleina, o le tetee-leo gafatia faʻaititia, ma le tau faʻateleina. Laʻititi, o le vevela dissipation e le lelei, ma laina vavalalata e faigofie ona faʻalavelave. Ina ua maeʻa fuafuaina le tele PCB. Ona suʻe lea o mea taua. I le iuga, e tusa ai ma le aoga iunite o le matagaluega, o vaega uma o le matagaluega ua faʻataʻatia i fafo.

A digital circuit in an electronic device. Analog matagaluega ma paoa matagaluega vaega faʻatulagaina ma uaea uiga e eseese, latou maua faʻalavelaveina ma faʻalavelave taofiofia auala e ese. Also high frequency. Ona o le eseʻese o taimi, o le faʻalavelaveina o le maualalo o taimi taʻamilosaga ma le metotia o le taofiofia faʻalavelave e ese. Ma i vaega faʻatulagaina, o le numera matagaluega tatau ona. The analog circuit and the power supply circuit are placed separately to separate the high frequency circuit from the low frequency circuit. Afai e i ai tuutuuga, latou tatau ona tuʻua pe faia i totonu o se matagaluega laupapa eseese. I se faʻaopopoga, o le faʻataʻatiaga e tatau foi ona totogia faapitoa le malosi i le malosi. Weak signal device distribution and signal transmission direction.

In printed board layout high speed. Mo feololo feololo ma saoasaoa-maualalo, o vaega e tatau ona faatulagaina i le faiga o loʻo faʻaalia ile Ata 1-1.

E pei foi o isi laina fesoʻotaʻiga, o mea e tatau ona tuʻuina i le latalata e mafai ai e le tasi ma le isi ina ia ausia lelei ai le teteʻe i le leo. The position of components on the PRINTED circuit board should take full account of emi. O se tasi o mataupu faʻavae o le taofiofia o mea muamua i le va o vaega i se taimi puʻupuʻu e mafai ai. I tulaga o le faʻatulagaina, o le analog faʻailoga vaega, saoasaoa televave vaega matagaluega, ma leo mafuaʻaga vaega (pei o moligafua, maualuga taimi nei ki, ma isi) tatau ona vavaeʻeseina lelei e faʻaitiitia ai le faʻailoga fesoʻotaʻiga i le va o latou, e pei ona faʻaalia i le Ata 1 -②.

Clock generator. Crystal oscillator and CPU clock input are prone to noise, to be closer to each other. Noisy devices. Low current circuit. O lapoʻa taamilosaga o loʻo i ai i le taimi nei e tatau ona tuʻu ese mai faʻasologa talafeagai i le mamao e mafai ai. E taua le faia o se ese matagaluega laupapa pe a mafai.

2.1 The following principles shall be observed when determining the location of special components: (1) Shorten the connection between high-frequency components as far as possible, and try to reduce their distribution parameters and electromagnetic interference between each other. E le tatau ona latalata tele le tasi i le isi i mea e faʻalavelave ai, ma mea e tatau ona mamao ese mai ai ma mea e tuʻu mai ai.

(2) Atonu e i ai se maualuga ono eseesega i le va o nisi vaega poʻo uaea, o lea la le va i le va o latou tatau ona faʻateleina e aloese ai faʻalavelave faʻafuaseʻi matagaluega mafua mai i le lafoa. Vaega e maualuga le voltage e tatau ona oʻo i le mea e mafai ai ona tuʻu i nofoaga e le faigofie ona oʻo iai le lima ile taimi e faʻamalo ai.

(3) Vaega o lona mamafa e sili atu i le 15g. E tatau ona faʻamalosi ona ueloina lea. E lapopoʻa ma mamafa na mea. O vaega o loʻo i ai le maualuga o le tau e le tatau ona faapipiiina i luga o le laupapa lolomi, ae i luga o le kesi o le masini atoa, ma le faʻafitauli o le vevela faʻateʻaina e tatau ona mafaufauina. O elemene vevela e tatau ona taofia mai le faʻavevela elemene.

(4) mo le potentiometer. Coil inductor fetuutuunai Capacitor ma liuliuina O le faʻatulagaina o mea e mafai ona fetuʻunaʻi pei o microswitch e tatau ona mafaufauina i tuʻutuʻuga manaʻoga o le masini atoa. Afai o le masini fetuunaiga, tatau ona tuu i luga o le lolomi laupapa luga luga faigofie e fetuunai le nofoaga; Afai e fetuʻunaʻi le masini i fafo, o lona tulaga e tatau ona fetuʻunaʻi i le tulaga o le fetuʻunaʻi faʻamau i luga o le vaega moli.

(5) O le tulaga o loʻo nofoia e le faʻatutuina pu ma le faʻapipiʻiina puipui o le laupapa lolomiina e tatau ona tuʻu ese.

2.2 Faʻatulagaina o vaega uma o le matagaluega e tusa ai ma gaioiga iunite o le matagaluega e tatau ona tausisia faʻatonuga nei:

(1) Faʻatulaga le tulaga o iunite taʻitasi faʻagaioiga e tusa ai ma le faʻagaioiga, ina ia talafeagai le faʻatulagaina mo faʻailoga tafe ma o le faʻailoga tausia le itu lava e tasi i le mamao e mafai ai.

(2) I vaega autu o taʻitasi faʻagaioiga matagaluega pei o le ogatotonu, faʻataʻamilo ia e faʻataunuʻuina le faʻatulagaga. Vaega e tatau ona tutusa. Ma teuteu. Faʻatulagaina puʻupuʻu ile PCB e faʻaititia ai ma faʻapuʻupuʻu taʻitaʻi ma fesoʻotaʻiga ile va o vaega. (3) Mo taamilosaga galue i maualuga maualuga, o le tufatufaina tapulaʻa i le va o vaega e tatau ona mafaufauina. I taamilosaga lautele, vaega e tatau ona faʻatulagaina i le tutusa i le tele e mafai ai. I lenei auala, e le gata matagofie, ma faigofie e faʻapipiʻi uelo, faigofie i vaega tele gaosiga.

(4) Vaega o loʻo tu i le pito ole laupapa matagaluega, e masani ona le itiiti ifo ile 2mm mai le pito ole laupapa matagaluega. O le sili foliga lelei o se matagaluega laupapa o se faatafafa. O le umi i le lautele lautele 3: 2 poʻo le 4: 3. O le tele o le matagaluega laupapa e sili atu nai lo 200x150mm. Mafaufauga e tatau ona faia i le masini malosi o le matagaluega laupapa.

2.3 Lautele manaʻoga manaʻoga mo PCB vaega:

E tatau ona faʻataʻatitia eletise eletise ma ala faʻailo e faʻaititia ai le fesoʻotaʻiga o faʻailo e le manaʻomia:

(1) O le maualalo eletise faailo auala e le tatau ona latalata i le maualuga tulaga faailo auala ma le laina laina e aunoa ma le faʻamamaina, aofia ai le matagaluega e mafai ona maua ai taimi le tumau.

(2) Vavaeʻese le maualalo tulaga analog taamilosaga mai le numera matagaluega e ‘aloese mai le analog matagaluega. O le numera faʻanatinati ma le masani matasele o le paoa sapalai maua masani faʻafouina impedance.

(3) maualuga. I le. Laʻititi le saoasaoa o laina taʻamilosaga faʻaaogaina eseese eria luga o le PCB.

(4) O le umi o laina faʻailo e tatau ona faʻaititia pe a faʻatulagaina le matagaluega

(5) Faamautinoa i le va o papatusi lata mai. I le va o laina felataʻi o le laupapa e tasi. Aua neʻi i ai ni uumi faʻailo umi uumi i le va o uaea felavasaʻi i le laina e tasi.

(6) E tatau ona latalata le eletise i le EMI pe a mafai ona tuʻu i luga ole laupapa laupapa e tasi.

(7) DC / DC faʻaliliuga. Fesuiaʻi elemeni ma faʻasaʻo tatau ona tuʻu latalata i le transformer pe a mafai e faʻaititia ai le uumi oa latou uaea

(8) Tuʻu le eletise faʻatonutonu elemeni ma faʻamama le capacitor i le latalata e mafai ai i le rectifier diode.

(9) O le lolomi laupapa e vaevaeina e tusa ma taimi ma taimi nei fesuiaʻi uiga, ma le leo elemeni ma le leai-leo elemeni tatau ona sili mamao ese.

(10) O le pisapisao-faʻaeteete uaea e le tatau ona tutusa ma le maualuga-taimi nei, maualuga-saosaoa laina fesuiaʻi.