Maitiro ekuita prototype PCB ine yakaderera ruzha zvinodiwa

Prototyping yakadhindwa redunhu bhodhi (PCB) ine yakaderera ruzha zvinodiwa inogona kunge iri basa rakaoma, asi rinogoneka nenzira kwayo uye nekunzwisisa kwemisimboti uye matekiniki anobatanidzwa.Mune ino blog post, isu tichaongorora matanho uye kufunga zvinogona kukubatsira iwe kugadzira yakaderera-ruzha PCB prototypes.Saka, ngatitangei!

1. Nzwisisa ruzha muPCBs

Usati wapinda mukati meiyo prototyping process, zvinodikanwa kuti unzwisise kuti ruzha chii uye kuti rinokanganisa sei maPCB.MuPCB, ruzha runoreva zviratidzo zvemagetsi zvisingadiwe zvinogona kukonzera kukanganisa uye kukanganisa nzira yechiratidzo yaunoda.Ruzha runogona kukonzerwa nezvakasiyana siyana, zvinosanganisira electromagnetic interference (EMI), zvishwe zvepasi, uye kuisa chinhu chisina kukodzera.

2. Sarudza zvigadziriso zveruzha

Kusarudzwa kwechikamu kwakakosha kudzikisa ruzha muPCB prototypes.Sarudza zvinhu zvakagadzirirwa kudzikisa kuburitsa ruzha, senge yakaderera-ruzha amplifiers uye mafirita.Pamusoro pezvo, funga kushandisa zvigadziriso zvepamusoro-soro (SMDs) pachinzvimbo chemukati-mugomba zvikamu, sezvo zvichigona kuderedza parasitic capacitance uye inductance, nekudaro ichipa zvirinani kuita ruzha.

3. Kuisa kwakarurama kwechikamu uye nzira

Kunyatsoronga kuiswa kwezvikamu paPCB kunogona kuderedza zvakanyanya ruzha.Boka zvinhu zvinonzwa ruzha pamwe chete uye kure nepamusoro-simba kana yakakwirira-frequency zvikamu.Izvi zvinobatsira kuderedza njodzi yekubatanidza ruzha pakati pezvikamu zvakasiyana zvedunhu.Paunenge uchifambisa, edza kuparadzanisa zviratidzo zvepamusoro-soro uye zviratidzo zvishoma-pasi kudzivirira kupindira kusingakoshi.

4. Ground uye simba layers

Kudzika kwakakodzera uye kugovera simba kwakakosha kune-isina ruzha PCB dhizaini.Shandisa yakatsaurirwa pasi uye ndege dzemagetsi kupa yakaderera-impedance nzira dzekudzoka dzepamusoro-frequency currents.Izvi zvinobatsira kudzikisira kushanduka kwemagetsi uye inova nechokwadi chechiratidzo chakagadzikana, kuderedza ruzha mukuita.Kupatsanura analogi uye dhijitari chiratidzo zvikonzero zvinowedzera kuderedza njodzi yekusvibiswa kweruzha.

5. Noise kuderedza redunhu teknolojia

Kuita hunyanzvi hwekudzikisa ruzha rwedunhu kunogona kubatsira kuvandudza kuita ruzha rwePCB prototypes.Semuyenzaniso, kushandisa decoupling capacitor pamagetsi njanji uye padyo neanoshanda zvinoriumba zvinogona kudzvanyirira yakakwira-frequency ruzha.Kushandisa nzira dzekudzivirira, dzakadai sekuisa dhizaini yakakosha mumasimbi akavharirwa kana kuwedzera nhovo yepasi, zvakare inogona kuderedza EMI-inoenderana ruzha.

6. Simulation uye kuedza

Pamberi pePCB prototype yagadzirwa, kuita kwayo kunofanirwa kutevedzerwa uye kuyedzwa kuona nekugadzirisa chero zvingangoitika zvine chekuita neruzha.Shandisa maturusi ekuenzanisa kuongorora kutendeseka kwechiratidzo, nhoroondo yezvikamu zveparasitic, uye kuongorora kupararira kweruzha.Pamusoro pezvo, kuyedzwa kwekushanda kunoitwa kuti ive nechokwadi chekuti PCB inosangana nezvinodiwa neruzha-ruzha rusati rwaenderera mberi nekugadzira.

Muchidimbu

Prototyping PCBs ine yakaderera ruzha zvinodiwa zvinoda kunyatsoronga uye kuitisa akasiyana matekiniki.Iwe unogona kuderedza zvakanyanya ruzha muPCB dhizaini yako nekusarudza magadzirirwo akagadziridzwa ruzha, kuterera kune chikamu chekuisa uye nzira, kugadzirisa pasi uye ndege dzemagetsi, uchishandisa nzira dzekudzikisa ruzha, uye kunyatso kuyedza prototypes.