Electronic engineering yog ib thaj chaw uas tau pom kev nce qib tseem ceeb hauv xyoo tas los no raws li thev naus laus zis txuas ntxiv txhim kho ntawm qhov xav tsis thoob.Nrog kev nce ntawm cov khoom siv hluav taws xob xws li smartphones, laptops, thiab kev siv thev naus laus zis, qhov tseem ceeb ntawm cov ntawv luam tawm Circuit Board (PCBs) tsis tuaj yeem hais txog qhov tseem ceeb.Txawm li cas los xij, feem ntau tsis meej pem ntawm PCB thiab PCM, ua rau ntau tus neeg siv lawv sib hloov.Yog li, dab tsi yog qhov txawv ntawm ob nqe lus no thiab lawv lub luag haujlwm dab tsi hauv hluav taws xob engineering?
PCMs yog dab tsi?
PCM stands rau Pulse Code Modulation, ib txoj kev siv los sawv cev digitally thiab encode analog signals.Txoj kev no feem ntau yog siv rau kev kaw suab thiab playback.Cov txheej txheem ntawm PCM suav nrog kev hloov pauv cov teeb liab analog, xws li lub suab nthwv dej, mus rau hauv ib qho ntawm 1s thiab 0s uas tuaj yeem rov qab ua si nrog ze li tib lub suab zoo li qub analog teeb liab.Tus nqi piv txwv rau kev hloov pauv PCM feem ntau yog nruab nrab ntawm 8 kHz thiab 192 kHz, thiab qhov tob me ntsis ntawm ib tus qauv yog nyob nruab nrab ntawm 16 thiab 32 khoom.
Printed Circuit Board yog dab tsi?
Lub rooj tsavxwm luam tawm (PCB) yog lub rooj tsavxwm uas siv cov khoom siv hluav taws xob, cov ntaub qhwv, thiab lwm yam khoom siv los ntawm cov nplooj ntawv ntawm tooj liab laminated mus rau cov khoom siv tsis zoo rau cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob sib txuas.Cov laug cam no yog cov khoom siv tseem ceeb hauv feem ntau cov tshuab hluav taws xob, muab lub platform ruaj khov rau analog thiab digital circuits.PCBs tuaj yeem ua ib sab, ob sab lossis ntau txheej, nyob ntawm qhov nyuaj thiab kev ua haujlwm ntawm lub tshuab hluav taws xob.
Qhov sib txawv ntawm PCM thiab PCB
PCM thiab PCB yog cov thev naus laus zis sib txawv ua haujlwm hauv ntau qhov chaw ntawm hluav taws xob engineering.PCM yog cov txheej txheem siv los encode thiab txiav txim siab cov teeb liab analog, thaum PCB yog lub cev tiv thaiv lub tsev thiab txuas cov khoom siv hluav taws xob.PCMs yog qhov tseem ceeb hauv kev sau cov thev naus laus zis, thaum PCBs yog qhov tseem ceeb hauv cov tshuab hluav taws xob feem ntau.
Ib qho ntawm qhov sib txawv tseem ceeb ntawm PCMs thiab PCBs yog lub luag haujlwm uas lawv ua hauv cov tshuab hluav taws xob.PCMs yog siv los ua kom raug ntes, khaws cia thiab ua si suab paj nruag, thaum PCBs yog siv los txhawb cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, muab kev ruaj ntseg thiab hluav taws xob sib txuas rau feem ntau cov tshuab hluav taws xob.Tsis tas li ntawd, PCBs tuaj yeem ua ntau txheej thiab nyuaj, qhov PCM feem ntau yog cov cuab yeej yooj yim dua.
Lwm qhov sib txawv tseem ceeb ntawm PCMs thiab PCBs yog lawv cov qauv thiab muaj pes tsawg leeg.PCM muaj ib tug series ntawm 1s thiab 0s sawv cev rau ib tug analog teeb liab, thaum lub PCB yog ib tug lub cev sib dhos ua los ntawm tooj liab los xij, uas tsis yog-conductive substrates, thiab lwm yam luam tawm Circuit Court Cheebtsam.Ib qho yog digital thiab lwm qhov yog lub cev, qhia lub cev ntawm PCM kev ua haujlwm thiab PCB interface.
Hauv cov ntsiab lus, PCM thiab PCB yog ob lub thev naus laus zis sib txawv hauv kev lag luam hluav taws xob.PCMs ua lub luag haujlwm tseem ceeb hauv kev kaw suab thiab ua cov teeb liab, thaum PCBs yog cov pob txha ntawm feem ntau cov tshuab hluav taws xob.Thaum ob lub thev naus laus zis qhia qee qhov sib xws hauv lawv txoj hauv kev rau kev ua cov ntaub ntawv thiab siv cov cim digital, lawv tau siv sib txawv hauv kev tsim hluav taws xob.
Hauv kev xaus, siv sijhawm ib pliag kom nkag siab txog lub luag haujlwm tseem ceeb uas PCBs ua si hauv tshuab hluav taws xob.Yog tsis muaj cov ntsiab lus tseem ceeb no, cov khoom siv hluav taws xob xws li smartphones, laptops lossis cov khoom siv hauv tsev yuav tsis tuaj yeem ua haujlwm zoo li niaj hnub no.Yog li nco ntsoov muab koj cov PCBs qhov kev saib xyuas lawv tsim nyog thiab xyuas kom lawv ua tau raws li txoj haujlwm!
Post lub sij hawm: Jun-07-2023