Dab tsi pcb impedance txhais tau? Kev sib txheeb ntawm PCB impedance thiab kab dav thiab spacing
Dab tsi pcb impedance txhais tau?
Pcb impedance hais txog lub Circuit Coilledance ntawm Circuit Court ntawm PCB. Ib qho khoom siv hluav taws xob yog ib qho khoom siv hluav taws xob uas muaj cov khoom siv hluav taws xob, cov xov hlau hluav taws xob, cov ntaub ntawv sab nrauv, thiab ntau yam khoom siv. Nws paub tseeb tias qhov kev sib cuam tshuam ntawm cov hluav taws xob cov hluav taws xob thiab kev paub txog cov haujlwm hauv hluav taws xob.
Thaum lub teeb liab rau ntawm Circuit Court board kis los ntawm xaim lossis yog tsim los ua kev siv hluav taws xob, cuam tshuam yog tsim. Nyob rau hauv circuits nrog passive Cheebtsam los yog cables, cuam tshuam yog lus teb ntawm Circuit Court mus hloov tshiab. Impedance yog tus lej uas muaj cov lej uas muaj tseeb thiab xav txog kev xav.
Nyob rau ntawm pcbs, impedance siv rau cov microwave microwave kis, digital signal kis, thiab analog teeb liab kis. Cov kev txwv tsis tshua muaj ntawm cov impedance yog qhov tsis kam thiab inductance ntawm cov xov hlau, ntsuas hauv OHMS (H) lossis HEYRYS (H).
Kev sib txheeb ntawm PCB impedance thiab kab dav thiab spacing
1. Kab dav thiab txuas
Kab dav thiab spacing xa mus rau qhov dav ntawm xaim thiab qhov kev ncua deb ntawm kab. Tus qauv tsim ntawm cov kab sib txawv dav thiab qhov deb tuaj yeem ua tiav qhov kev ua tsis ncaj.
2. Kev tswj hwm kev tswj hwm
Hauv PCB tsim, los tswj lub impedance ntawm cov Circuit Court Board thiab cov khoom siv, nws yog qhov tsim nyog los tswj cov duab geometric thiab cov qauv ntawm PCB Circuit hauv cov qauv. Tshwj xeeb tshaj yog qhov ntev, dav, thiab deb ntawm cov xov hlau yog qhov tseem ceeb rau kev tswj hwm. Qhov me dua qhov deb ntawm cov kab, siab dua cov impedance; Qhov ntau dua qhov kev ncua deb ntawm cov kab, qis dua qhov kev xav.
3. Yuam kev suav
Txhawm rau tswj cov impedance ntawm pcb circuits, impedance suav yuav tsum tau ua. Muaj ob txoj hauv kev rau kev cuam tshuam kev cai: ib qho yog ua kom muaj kev suav nrog kev siv cov qauv impedance, thiab lwm qhov yog los xam kev siv cov software Circuit Court. Kev tuav cov ntawv suav tau ua rau thiab muaj qhov yuam kev loj, yog li Circuite Simulation software feem ntau yog siv rau kev suav.
Cov ntsiab lus tseem ceeb rau kev yuam kev suav suav nrog cov kab, cov khoom siv cov kab, kev sib kis ntawm cov kab sib cais.