Injiniya yemagetsi imunda wakaona kufambira mberi kwakakosha mumakore achangopfuura sezvo tekinoroji iri kuramba ichikura nekumhanya kunoshamisa.Nekusimuka kwemidziyo yemagetsi yakadai sema smartphones, malaptop, uye tekinoroji inopfeka, kukosha kweakadhindwa edunhu mabhodhi (PCBs) hakugone kusimbiswa zvakanyanya.Zvisinei, pane kazhinji kacho kuvhiringidzika pakati pePCB nePCM, zvichiita kuti vanhu vakawanda vashandise zvakasiyana.Saka, ndeupi musiyano uripo pakati pematemu maviri aya uye ibasa ripi ravanoita muinjiniya yemagetsi?
Chii chinonzi PCMs?
PCM inomirira Pulse Code Modulation, nzira inoshandiswa kumiririra digitally uye encode zviratidzo zveanalog.Iyi nzira inowanzoshandiswa kurekodha uye kutamba zvakare.Maitiro ePCM anosanganisira kushandura chiratidzo cheanalog, senge wave wave, kuita nhevedzano ye1s uye 0s iyo inogona kuridzwa ichidzoka neinoda kufanana mhando yeruzha seyekutanga analogi siginecha.Sample rate yekushandurwa kwePCM kazhinji iri pakati pe8 kHz ne192 kHz, uye hudzamu hwese pasample huri pakati pe16 ne32 bits.
Chii chinonzi Printed Circuit Board?
A rakadhindwa redunhu bhodhi (PCB) ibhodhi rinoshandisa conductive njanji, Mapedhi, uye zvimwe zvinhu zvakamisikidzwa kubva pamapepa emhangura laminated pane isiri-conductive substrate kuti itsigire michina uye nemagetsi kubatanidza zvinhu zvemagetsi.Aya mabhodhi zvinhu zvakakosha mumasisitimu mazhinji emagetsi, achipa chikuva chakagadzikana cheanalogi uye dijitari maseketi.MaPCB anogona kunge ari maviri-sided, maviri-sided kana akawanda-layered, zvichienderana nekuoma uye kushanda kweiyo electronic system.
Musiyano uripo pakati pePCM nePCB
PCM nePCB ndiwo akasiyana matekinoroji anoshanda munzvimbo dzakasiyana dzeinjiniya yemagetsi.PCM inzira inoshandiswa encode uye decode masaini eanalog, nepo PCB chiri chikamu chemuviri chinovaka uye chinobatanidza zvinhu zvemagetsi.MaPCM akakosha mukurekodha tekinoroji, nepo maPCB akakosha mune akawanda emagetsi masisitimu.
Imwe yemisiyano yakakosha pakati pePCM nePCB ibasa ravanoita mumasisitimu emagetsi.MaPCM anoshandiswa kubata nemazvo, kuchengeta uye kutamba zvikwangwani zvinonzwika, nepo maPCB achishandiswa kutsigira zvikamu zvemagetsi nemaseketi, zvichipa kugadzikana kwemagetsi uye kubatana kwemagetsi kune mazhinji masisitimu emagetsi.Zvakare, maPCB anogona kuve akawanda-akaturikidzana uye akaomarara, nepo PCM kazhinji iri nyore tekinoroji.
Mumwe mutsauko wakakosha pakati pePCM nePCB chimiro chavo uye chimiro.A PCM ine nhevedzano ye1s uye 0s inomiririra chiratidzo cheanalogi, nepo PCB isangano remuviri rakagadzirwa nemashiti emhangura, asiri-conductive substrates, uye zvimwe zvakadhindwa zvikamu zvedunhu.Imwe ndeyedhijitari uye imwe ndeyemuviri, inoratidza chimiro chePCM mashandiro uye PCB interface.
Muchidimbu, PCM nePCB matekinoroji maviri akasiyana zvachose mumunda weinjiniya yemagetsi.MaPCM anoita basa rakakosha mukurekodha uye kugadzirisa masaini, nepo maPCB ari musana weakawanda emagetsi masisitimu.Nepo matekinoroji maviri aya achigovana mamwe akafanana mumaitiro avo ekugadzirisa ruzivo uye kushandiswa kwemasaini edhijitari, anoshandiswa zvakasiyana muinjiniya yemagetsi.
Mukupedzisa, tora chinguva kuti unzwisise basa rakakosha rinoitwa nePCB mumasystem emagetsi.Pasina chinhu chakakosha ichi, midziyo yemagetsi yakaita sema smartphones, malaptop kana midziyo yemumba yaisazokwanisa kushanda sezvazviri kuita nhasi.Saka iva nechokwadi chekupa maPCB ako kutarisisa kwaanofanirwa uye ita shuwa kuti asvika pabasa!
Nguva yekutumira: Jun-07-2023