Mhando dzakasiyana dzemabhodhi edunhu

The yakadhindwa redunhu bhodhi kana PCB ndiyo bhodhi rekutsigira muviri apo magetsi achibatanidza akasiyana emagetsi zvikamu zveyakafara sisitimu. Dare redunhu rinoshandisa conductive wiring, padding uye zvimwe zvinhu zvinonzwika kubva kumhangura layer.

Rimwe divi

Sezvinoratidzwa nezita racho, PCB ine divi rimwe chete inogadzirwa nechinhu chimwe chete, inozivikanwawo se “substrate.” On top of the base is a thin foil layer made of copper. This acts as a conductor of electrical signals.

Aya ndiwo marudzi akajairika ePCBS uye anozivikanwa zvakanyanya mukugadzirwa kwevhoriyamu nekuda kwemutengo wakaderera. Aya mabhodhi anowanzo kuwanikwa mumakamera, macalculator uye midziyo yeredhiyo.

Ivo vanogonawo kuwanikwa mune akareruka toy dhizaini.

Mativi maviri

Double-sided printed circuit boards work much like single-sided printed circuit boards, but are sandwiched between conductive layers on both sides. In addition, they are designed to have holes drilled into the plate.

These holes are placed on the board to allow the circuit to be mounted on either side of the PCB or fed through the board. Additional flexibility and conductive surfaces allow double-sided materials to be used in more advanced applications.

Maviri-mativi PCBS anowanzo kuwanikwa munharembozha, muchina wekutengesa, mamonitor emota uye magetsi emamita emidziyo.

Multilayer

Iyo yakagadzirwa yakapetwa kaviri uye inowedzera pairi. A multilayer muunganidzwa weasingasviki matatu (3) maviri-mativi PCBS. Ivo vanotora tekinoroji yakagadzwa pano uye vanowedzera kugona kwavo kugadzira.

Size and space are the main advantages of multi-layer PCBS. Vanogona kushandisa multilayer board panzvimbo yemapuranga akawanda.

Iwo chikamu chakakosha cheyakakwira-kumhanya maseketi nekuti saizi yavo yebhodhi inobvumira kwakaringana conductor marongero uye simba.

Zvakaomeswa

Rigid PCBS can be single, double, or multi-layered. Rigidity inoreva substrate zvinhu izvo mapuranga anogadzirwa. When a PCB is rigid, it is, as the name implies, made of materials that resist distortion or deformation.

A very common rigid PCB is the motherboard on a computer. Izvo zvakagadzirirwa kuti zvive zvakasimba uye zvinogona kushandiswa munzvimbo imwe chete uye chimiro.

Rigid PCBS benefit from ease of maintenance and ease of use. Mapurojekiti ese ane nzvimbo uye anonyatso cherechedzwa kana akagadzirwa. Izvo hazvina kuganhurirwa kune imwe dhizaini uye inogona kubva kune imwechete layer kusvika gumi (10) layer PCB magadzirirwo.

tefa

Flexible PCBS inoshanda nenzira imwechete nePCBS yakaoma, asi yakagadzirwa nezvinhu zvakasiyana.

Mahwendefa akaomarara anogadzirwa nezvinhu zvinogara (zvinoreva kubata chimiro chazvo) (kazhinji musanganiswa wefiberglass), nepo mahwendefa anochinjika anowanzo gadzirwa nepurasitiki kana zvimwewo zvakafanana.

Literal flexibility is the main advantage of flexible PCBS. Kuchengetedza mari kunogoneka nekuda kwekugona kwavo “kuputira” nzvimbo dzinofanira kufamba mahwendefa akaomarara.

The main applications of flexible PCBS are in systems that may cause damage to the environment. Dhizaini yavo inoita kuti ive yakanyanya kurwisa tembiricha, mvura, ngura uye zvimwe zvinhu zvinonyanya kukuvadza mahwendefa akaomarara.

Mixing and soft

Rigid-flexibility Bridges the gap between the two types built on text and graphics, which is most common in mobile phones and digital cameras.

Izvi zvinosanganisira seti yemaseketi anochinjika akabatana kune akawanda mahwendefa akaomarara. Izvi zvinoita kuti dhizaini ive nyore, sezvo ichibatanidza zvinhu zvese zvinodiwa pazvikamu izvi kuita “chimwe” chikamu.

Kuomarara uye kuchinjika zvinogonawo kuwanikwa mumashandisirwo ekurapa.

Aluminium kumashure

Kupisa kupisa kuri pakati pePCB. Kana tembiricha yehurongwa iri kufunga, kushandisa aluminium backboard PCB ndiyo yakanakisa sarudzo, iyo inosanganisira mamwe mabhenefiti ari pachena.

Chimiro chePCB chakafanana neyakajairwa imwe chete kana kaviri layer, asi zvinhu zvinoshandiswa zvakasiyana.

Izvo zvakanyanya kusimba uye zvakanyanya kushamwaridzana zvakatipoteredza. Aluminium haina chepfu uye iri nyore kudzokorodza. On top of that, it’s incredibly cheap, it’s one of the cheapest metals in mining, and it’s cheap to make.

Yakawanda frequency

Hf PCBS haina kuvakwa nenzira itsva, semuenzaniso, kuenzanisa imwe chete kune akawanda akaturikidzana, asi tarisa kune rudzi rwekushandisa. High frequency PCBS inogona kushandiswa kana masaini achida kufambiswa pamitengo yakakwira kupfuura 1GHz. They are mainly used in large communication systems.

Mabhenefiti ekushandisa PCB

Nepo imwe neimwe yemhando yebhodhi ine zvayakanakira, kune akawanda mabhenefiti ekushandisa PCB mune zvese.

Easy trouble shooting and maintenance

Mamiriro ebhodhi, kana kuti “mucherechedzo,” webhodhi anoita kuti zvive nyore kuona midziyo ine dambudziko nekuitsiva

Remove and reattach to board

Kubudirira kwe: Hapana chikonzero chekuvakazve dunhu rose paunenge uchigadzirisa kana kuchinja

Bhodhi redunhu chirongwa chakafanogadzirwa uye chinotora nguva shoma zvikuru kuvaka pane matunhu echinyakare

Low ruzha: Chimiro chePCB chakanyatsogadzirwa chinogona kutungamira kune yakaderera-mwaranzi yemagetsi zvikamu, inozivikanwa se “cross talk.”

Inobatsira kubvisa ruzha rwemagetsi rwunogona kukanganisa kushanda kwemudziyo

kuvimbika: Nokudaro, kubatanidzwa kwebhodhi kunoputirwa netambo yemhangura. Hapana yakasununguka yakabatana kana “shaky waya.”

Iyo welding inobatanidza zvinhu zvese kubhodhi pachayo, saka inoshanda kunyangwe bhodhi rikafambiswa.