Munyika yanhasi yedhijitari, kumhanya ndicho chinhu chakakosha uye chakakosha chinovandudza kuita kwese kwechigadzirwa. Nekudaro, pamusoro pekuwedzera kwekumhanya kwechiratidzo, huwandu hukuru hwemagadzirirwo emagetsi anozadzwa neakawanda ekumhanya-mhanya nzvimbo, uye kuwedzera kwesipidhi kumhanya kunoita PCB kurongeka uye wiring yakakosha yakakosha yeiyo yakazara system mashandiro. Kuwanda kuri kuwedzera kwehunyanzvi hwemagetsi kwakonzera kuwedzera kudiwa kwepamusoro-kumhanya PCB kugadzira uye matekinoroji egungano anonyatsokodzera kunetsa kwakakosha zvinodiwa nePCB, kusanganisira kudiwa kwekudzikisa ruzha paPCB. Ruzha pane rakadhindwa redunhu bhodhi ndicho chinhu chikuru chinokanganisa mashandiro ehurongwa hwese. Iyi blog inotarisa munzira uye nzira dzekudzora pabhodhi ruzha pane yakakwira-kumhanya PCB.

Pcb magadzirirwo ayo anovimbisa kuvimbika kukwidziridzwa achave akaderera mwero uye zita rezita pane-bhodhi ruzha muPCB. Pcb dhizaini idanho rakakosha rekuwana yakasimba, isina ruzha, yepamusoro-pcb gungano masevhisi, uye pcb dhizaini rave rakawanda. Kusvika izvi, zvakakosha zvinhu zvinosanganisira zvinoshanda wedunhu dhizaini, yekubatanidza nyaya wiring, zvipembenene zvikamu, kupwanya uye kumisikidza matekiniki eanobudirira pcb dhizaini. Chekutanga chimiro chisina kuoma uye mashandiro ewiring – zvishwe zvepasi uye ruzha rwepasi, kurasika capacitance, kukwirira kwedunhu impedance, mitsara yekufambisa uye wiring yakadzika. Nezve yakakwira frequency zvido zveanokurumidza chiratidzo kumhanyisa mudunhu,

Dhizaini dhizaini yekubvisa ruzha rwepabhodhi mune yakakwira-mhanyisa PCB

Mheremhere muPCB inogona kukanganisa pcb mashandiro nekuda kwekuchinja-chinja kwemhepo kupisa uye chimiro chazvino. Verenga kuburikidza nedzimwe dziviriro kuti udzivise zvikanganiso zvinogona kubatsira kusimudzira mashandiro uye kudzivirira ruzha kubva kuPCB inomhanya.

L Deredzai crosstalk

Crosstalk iri redundant inductive uye electromagnetic coupling pakati pewaya, tambo, tambo magungano, uye zvinhu zvine hukama nemagetsi emagetsi kugovera munda. Crosstalk inoenderana zvakanyanya nenzira dzekufambisa. Crosstalk kashoma kuitika kana tambo dzichiendeswa parutivi. Kana tambo dzichienderana kune imwe neimwe, crosstalk inogona kuitika kana zvikamu zvikasachengetwa zvipfupi. Dzimwe nzira dzekudzivirira crosstalk kudzikisa iyo dielectric kukwirira uye kuwedzera nzvimbo pakati pewaya.

L Yakasimba chiratidzo chesimba simba

Pcb dhizaina nyanzvi vanofanirwa kufunga nezvechiratidzo uye simba rekuvimbika maitiro uye kugona kweanalog yeakakwira-kumhanya pcb magadzirirwo. Imwe yezvakakosha dhizaini yekumhanyisa-kumhanya SI ndiko kusarudzwa kwakaringana kwePBB dhizaini yekufambisa mitsara kunoenderana neyakajeka chiratidzo kumhanya, mutyairi IC, uye mamwe magadzirirwo akaomarara ayo anobatsira kudzivirira pcb onboard ruzha. Kumhanya kwechiratidzo kunokurumidza. Simba kuvimbika (PI) zvakare chikamu chakakosha cheprotocol inodiwa kuti ishandise yakakwira-mhanyisa pcb magadzirirwo ayo anoderedza ruzha uye anochengetedza yakaenzana nhanho yemagetsi kugadzikana pane iyo pad chip.

L Kudzivirira kutonhora kutonhora makwapa

Welding maitiro asiri iwo anogona kukonzeresa munzvimbo dzinotonhora. Cold solder majoini anogona kukonzeresa matambudziko senge zvisina kujairika kuvhurika, static ruzha uye zvichingodaro. Kugona! Kuti udzivise matambudziko akadaro, ita chokwadi chekudziisa simbi zvakanaka pakushambidzika chaiko. Zano rechiputi chesimbi rinofanira kuiswa pamubatanidzwa wesolder kuti uripise zvakanaka usati waisa solder kune yakasanganiswa. Iwe uchaona uchinyungudika pane chaiyo tembiricha; Iyo solder inovhara zvachose mubatanidzwa. Dzimwe nzira dzekurerutsa kutenderera ndedze kushandisa kuyerera.

L Deredza pcb radiation kuti uwane yakaderera ruzha pcb dhizaini

Iyo yakarongedzwa dhizaini iri padhuze netara mapara ndiyo yakasarudzika wedunhu dhizaini sarudzo yekudzivirira paneboard ruzha muPCB. Zvimwe zvinodikanwa zvekuzadzisa yakaderera-ruzha pcb dhizaini uye kudzora pcb kuburitsa inosanganisira mukana wakaderera wekutsemuka, kuwedzerwa kweanoteedzana terminal resistors, kushandiswa kwe decoupling capacitors, kupatsanurwa kweanalog uye nedhijitari pasi matete, uye kusurukirwa kweI / O nzvimbo uye kuvhara bhodhi kana chiratidzo pabhodhi zvakanyatsoenderana nezvinodiwa zvepasi-noise high-speed PCB.

Kuita zvizere hunyanzvi hwezviri pamusoro uye kuchengeta mundangariro kudhizaini dhizaini yePCB purojekiti, zvingangoita kuti pcb isina ruzha haina chokwadi. Kuti tive nesarudzo dzakakwana dzekugadzira kuti uwane PCB isina ruzha mune EMS kutsanangurwa, ndosaka takakurudzira nzira dzakasiyana siyana dzekudzivisa ruzha rwepa-board paPCB inomhanya.