Yuav ua li cas xaiv cov khoom sib xws yog qhov zoo rau kev tsim ntawm Circuit Board?

1. Xaiv cov khoom uas muaj txiaj ntsig zoo rau kev ntim khoom

Nyob rau hauv tag nrho cov schematic daim duab theem, peb yuav tsum xav txog qhov kev txiav txim siab ntawm cov khoom ntim thiab cov ntaub qhwv ntsej uas yuav tsum tau ua nyob rau hauv lub layout theem. Nov yog qee cov lus qhia los xav txog thaum xaiv cov khoom raws li kev ntim khoom.
Nco ntsoov, lub pob muaj xws li cov khoom siv hluav taws xob sib txuas thiab cov khoom siv qhov ntev (x, y thiab z) ntawm cov khoom, uas yog, cov duab ntawm lub cev tivthaiv thiab cov pins txuas rau. PCB. Thaum xaiv cov khoom, koj yuav tsum xav txog txhua qhov kev teeb tsa lossis kev txwv ntim rau saum thiab hauv qab txheej ntawm PCB kawg. Qee cov khoom siv (xws li polar capacitance) tuaj yeem muaj kev txwv qhov siab, uas yuav tsum tau xav txog hauv cov txheej txheem xaiv cov khoom. Thaum pib ntawm kev tsim, koj tuaj yeem kos ib qho qauv qauv ntawm lub rooj tsav xwm Circuit Court, thiab tom qab ntawd muab qee qhov loj lossis qhov chaw tseem ceeb (xws li cov khoom sib txuas) uas koj npaj siv. Nyob rau hauv txoj kev no, koj tuaj yeem pom qhov pom thiab pom sai sai ntawm Virtual Perspective ntawm lub rooj tsav xwm Circuit Court (tsis muaj thaiv), thiab muab qhov tseeb txheeb ze qhov chaw thiab qhov siab ntawm lub rooj tsav xwm Circuit Court thiab cov khoom. Qhov no yuav pab xyuas kom meej tias cov khoom tuaj yeem muab tso rau hauv cov ntim khoom zoo (cov khoom yas, chassis, ncej, thiab lwm yam) tom qab sib dhos PCB. Hu rau 3D saib ua ntej hom los ntawm cov ntawv qhia zaub mov kom xauj tag nrho lub rooj tsavxwm.
Cov qauv ncoo qhia tau hais tias lub ncoo tiag tiag lossis los ntawm cov duab ntawm cov khoom siv soldered ntawm PCB. Cov qauv tooj liab no ntawm PCB kuj muaj qee cov ntaub ntawv yooj yim. Qhov luaj li cas ntawm lub ncoo qauv yuav tsum muaj tseeb los xyuas kom meej qhov tseeb vuam thiab qhov tseeb txhua yam thiab thermal kev ncaj ncees ntawm cov khoom sib txuas. Thaum tsim PCB layout, peb yuav tsum xav txog yuav ua li cas lub Circuit Court board yuav tsim, los yog yuav ua li cas lub ncoo yuav welded yog hais tias nws yog manually welded. Reflow soldering (flux melting nyob rau hauv lub qhov cub hluav taws kub tswj) tuaj yeem tswj tau ntau yam ntawm cov khoom siv saum npoo av (SMD). Wave soldering feem ntau yog siv los ua lub nraub qaum ntawm lub rooj tsav xwm hauv Circuit Court los txhim kho cov khoom siv los ntawm lub qhov, tab sis nws kuj tuaj yeem ua tau qee qhov chaw mounted nyob rau sab nraum qab ntawm PCB. Feem ntau, thaum siv cov thev naus laus zis no, cov cuab yeej siv hauv qab yuav tsum tau teem rau hauv ib qho kev taw qhia tshwj xeeb, thiab txhawm rau hloov mus rau txoj kev vuam no, lub ncoo yuav tsum tau hloov kho.
Kev xaiv ntawm cov khoom tuaj yeem hloov pauv hauv tag nrho cov txheej txheem tsim. Thaum ntxov ntawm tus txheej txheem tsim, txiav txim siab seb cov khoom siv twg yuav tsum siv electroplated los ntawm qhov (PTH) thiab qhov twg yuav tsum tau siv cov cuab yeej siv saum npoo av (SMT) yuav pab tau tag nrho cov kev npaj ntawm PCB. Cov xwm txheej uas yuav tsum tau txais kev txiav txim siab yog suav nrog cov khoom siv ntaus nqi, kev siv hluav taws xob, thiab lwm yam khoom siv hluav taws xob feem ntau pheej yig dua li los ntawm cov khoom siv, thiab feem ntau muaj kev siv tau ntau dua. Rau cov qauv me me thiab nruab nrab, nws yog qhov zoo tshaj plaws los xaiv cov khoom siv loj dua saum npoo los yog cov khoom siv los ntawm lub qhov, uas tsis yog yooj yim rau kev tuav vuam, tab sis kuj ua rau kev sib txuas zoo dua thiab cov teeb liab hauv cov txheej txheem ntawm kev tshawb nrhiav thiab kev debugging. .
Yog tias tsis muaj pob khoom npaj rau hauv cov ntaub ntawv, nws yog feem ntau los tsim cov pob customized hauv cov cuab yeej.

2. Siv txoj hauv kev zoo hauv av

Xyuas kom meej tias tus tsim muaj txaus bypass capacitance thiab av theem. Thaum siv cov kev sib xyaw ua ke, nco ntsoov siv lub tshuab hluav taws xob tsim nyog nyob ze ntawm lub hwj chim kawg rau hauv av (zoo dua lub dav hlau hauv av). Lub peev xwm tsim nyog ntawm lub capacitor yog nyob ntawm daim ntawv thov tshwj xeeb, capacitor technology thiab kev khiav hauj lwm zaus. Thaum lub bypass capacitor muab tso rau nruab nrab ntawm lub hwj chim mov thiab av pins thiab ze rau qhov tseeb IC tus pin, lub electromagnetic compatibility thiab susceptibility ntawm lub Circuit Court yuav optimized.

3. Muab cov khoom ntim khoom ntim khoom virtual
Sau ib daim nqi ntawm cov ntaub ntawv (BOM) rau kev kuaj xyuas cov khoom siv virtual. Cov khoom siv virtual tsis muaj feem cuam tshuam txog kev ntim khoom thiab yuav tsis raug xa mus rau theem layout. Tsim ib daim nqi ntawm cov ntaub ntawv thiab saib tag nrho cov khoom siv virtual hauv kev tsim. Cov khoom nkaus xwb yuav tsum yog lub zog thiab cov teeb liab hauv av, vim tias lawv raug suav hais tias yog cov khoom siv virtual, uas tsuas yog ua tiav tshwj xeeb hauv ib puag ncig schematic thiab yuav tsis raug xa mus rau cov qauv tsim. Tshwj tsis yog siv rau lub hom phiaj simulation, cov khoom lag luam tso tawm hauv qhov virtual yuav tsum tau hloov los ntawm cov khoom ntim nrog ntim.

4. Xyuas kom tseeb tias koj muaj cov ntaub ntawv sau nqi tag nrho
Xyuas seb puas muaj cov ntaub ntawv txaus thiab ua tiav hauv daim ntawv tshaj tawm cov ntaub ntawv. Tom qab tsim daim ntawv tshaj tawm cov ntaub ntawv, nws yuav tsum ua tib zoo xyuas thiab ntxiv cov ntaub ntawv tsis tiav ntawm cov khoom siv, cov chaw muag khoom lossis cov chaw tsim khoom hauv txhua qhov kev nkag.

5. Txheeb raws li daim ntawv lo

Txhawm rau ua kom yooj yim rau kev txheeb xyuas thiab saib cov nqi ntawm cov ntaub ntawv, xyuas kom meej tias cov ntawv cim npe raug suav ua ntu zus.

6. Tshawb xyuas lub rooj vag rov tsis tau
Feem ntau hais lus, cov tswv yim ntawm tag nrho cov rooj vag rov qab yuav tsum muaj cov teeb liab sib txuas kom tsis txhob muaj cov tswv yim kawg dai. Nco ntsoov tias koj txheeb xyuas tag nrho cov rooj vag tsis tu ncua lossis ploj lawm thiab tag nrho cov khoom siv uas tsis muaj xov tooj txuas nrog tag nrho. Qee zaum, yog tias cov tswv yim raug tshem tawm, tag nrho cov system yuav tsis ua haujlwm kom raug. Siv ob chav ua haujlwm amplifiers, uas feem ntau siv hauv kev tsim. Yog tias tsuas yog ib qho ntawm ob txoj kev op amp IC cov khoom siv, nws raug nquahu kom siv lwm qhov op amp, lossis hauv av cov tswv yim ntawm op amp uas tsis siv, thiab npaj ib qho chaw tsim nyog nce (lossis lwm qhov nce) tawm tswv yim network, thiaj li ua kom lub cev ua haujlwm ntawm tag nrho cov khoom.
Qee zaum, ICs nrog cov pins ntab yuav tsis ua haujlwm zoo hauv qhov ntsuas qhov ntsuas. Feem ntau, tsuas yog thaum IC ntaus ntawv lossis lwm lub rooj vag hauv tib lub cuab yeej tsis ua haujlwm nyob rau hauv lub xeev saturated, cov tswv yim lossis cov zis nyob ze rau lossis hauv cov khoom siv hluav taws xob, IC no tuaj yeem ua tau raws li qhov yuav tsum tau ua thaum nws ua haujlwm. Kev simulation feem ntau tsis tuaj yeem ntes tau qhov xwm txheej no, vim tias cov qauv simulation feem ntau tsis txuas ntau qhov chaw ntawm IC ua ke los ua qauv kev cuam tshuam kev cuam tshuam.

Yog tias koj muaj teeb meem thov tham ua ke thiab txais tos rau peb lub vev xaib-www.ipcb.com.