Hauv txhua qhov kev hloov pauv hluav taws xob tsim, lub cev tsim ntawm PCB pawg thawj coj saib yog qhov txuas kawg. Yog tias tus qauv tsim tsis raug, PCB tuaj yeem cuam tshuam cov electromagnetic cuam tshuam ntau dhau thiab ua rau lub zog hluav taws xob ua haujlwm tsis ruaj khov. Cov hauv qab no yog cov teeb meem uas yuav tsum tau saib xyuas hauv txhua kauj ruam txheeb xyuas:

1. Los ntawm schematic mus rau PCB tsim txheej txheem los tsim kom muaj kev tivthaiv tsis-“input hauv paus ntsiab lus netlist-“tsim parameter nqis-“manual layout-” phau ntawv wiring-“tsim pov thawj-” tshuaj xyuas-“CAM tso zis.

Ob, qhov kev teeb tsa qhov kev ncua deb ntawm cov xov hlau uas nyob ib sab yuav tsum muaj peev xwm ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb ntawm hluav taws xob, thiab txhawm rau txhawm rau ua kom yooj yim rau kev khiav lag luam thiab kev tsim khoom, qhov kev ncua deb yuav tsum dav li ntau tau. Qhov sib nrug yam tsawg kawg nkaus yuav tsum yog qhov tsawg kawg yog tsim nyog rau qhov ntsuas hluav taws xob. Thaum cov kab hluav taws xob tsawg tsawg, qhov sib nrug ntawm cov kab teeb liab tuaj yeem nce ntxiv kom tsim nyog. Rau cov kab teeb liab nrog qhov sib txawv loj ntawm qhov siab thiab qis, qhov sib nrug yuav tsum luv li sai tau thiab qhov sib nrug yuav tsum tau nce ntxiv. Feem ntau, Teem cov kab sib nrug mus rau 8mil. Qhov kev ncua deb ntawm ntug ntawm lub puab qhov ntawm lub ncoo thiab ntug ntawm lub rooj tsavxwm luam ntawv yuav tsum siab tshaj 1 hli, uas tuaj yeem zam qhov tsis xws ntawm lub ncoo thaum ua haujlwm. Thaum cov kab txuas nrog cov ntaub qhwv nyias nyias, kev sib txuas ntawm cov ntaub qhwv thiab cov kab yuav tsum tau tsim los ua ib qho kev poob. Qhov zoo ntawm qhov no yog cov ntaub qhwv tsis yooj yim rau tev, tab sis cov kab thiab cov ntaub qhwv tsis yooj yim txiav.

Thib peb, cov txheej txheem kev teeb tsa kev tiv thaiv tau ua pov thawj tias txawm tias qhov kev tsim hluav taws xob hauv Circuit Court yog qhov tseeb, cov ntawv luam tawm Circuit Board tsis tsim kom zoo, nws yuav muaj kev cuam tshuam tsis zoo rau kev ntseeg siab ntawm cov khoom siv hluav taws xob. Piv txwv li, yog tias ob txoj kab nyias nyias ntawm cov ntawv luam tawm nyob ze ua ke, lub teeb liab waveform yuav raug ncua thiab cov suab nrov yuav tshwm sim ntawm lub davhlau ya nyob twg ntawm cov kab sib kis. Qhov kev ua tau zoo poob qis, yog li thaum tsim lub rooj tsav xwm luam tawm, koj yuav tsum tau them sai sai rau kev siv txoj kev raug.

Txhua qhov kev hloov hluav taws xob muaj plaub lub voj tam sim no:

(1) Fais fab hloov AC Circuit Court

(2) tso zis rectifier AC Circuit Court

(3) input teeb liab qhov chaw tam sim no voj

(4) Output load tam sim no voj Lub input voj tsub lub input capacitor los ntawm kwv yees DC tam sim no. Lub lim capacitor feem ntau ua raws li lub zog broadband cia; Zoo sib xws, cov zis lim capacitor kuj tseem siv los khaws cov khoom siv hluav taws xob ntau los ntawm cov zis rectifier. Nyob rau tib lub sijhawm, DC lub zog ntawm cov khoom tso tawm hluav taws xob raug tshem tawm. Yog li ntawd, cov terminals ntawm cov input thiab output lim capacitors yog ib qho tseem ceeb heev. Lub input thiab output tam sim no circuits yuav tsum tsuas yog txuas nrog lub hwj chim mov los ntawm lub terminals ntawm lub lim capacitor feem; Yog hais tias qhov kev sib txuas ntawm lub input / output circuit thiab lub hwj chim hloov / rectifier Circuit Court tsis tuaj yeem txuas nrog lub capacitor Lub davhlau ya nyob twg txuas ncaj qha, thiab AC lub zog yuav raug tawg mus rau hauv ib puag ncig los ntawm cov tswv yim lossis cov zis lim capacitor. Lub AC Circuit Court ntawm lub hwj chim hloov thiab AC Circuit Court ntawm lub rectifier muaj high-amplitude trapezoidal tam sim no. Lub harmonic Cheebtsam ntawm cov tam sim no yog siab heev. Qhov zaus yog ntau dua li qhov tseem ceeb ntawm qhov hloov pauv. Qhov siab tshaj plaws amplitude tuaj yeem siab li 5 npaug ntawm qhov amplitude ntawm qhov txuas txuas ntxiv / tso tawm DC tam sim no. Lub sijhawm hloov pauv feem ntau yog Txog 50ns. Ob lub voj voog no yog qhov feem ntau cuam tshuam rau electromagnetic cuam tshuam, yog li cov AC loops yuav tsum tau muab tso ua ntej lwm cov ntawv luam tawm hauv cov khoom siv hluav taws xob. Peb lub ntsiab ntawm txhua lub voj yog lim capacitors, fais fab hloov lossis rectifiers, inductors lossis transformers. Muab lawv ib sab ntawm ib sab thiab kho qhov chaw ntawm cov khoom ua kom txoj kev tam sim no ntawm lawv luv li sai tau. Txoj hauv kev zoo tshaj plaws los tsim kom muaj lub zog hloov hluav taws xob layout zoo ib yam li nws cov qauv hluav taws xob. Txoj kev tsim qauv zoo tshaj plaws yog raws li hauv qab no:

• Muab lub transformer

• Tsim lub zog hloov lub voj voog tam sim no

• Tsim cov zis rectifier tam sim no voj

• Tswj Circuit Court txuas nrog AC fais fab Circuit Court

• Tsim cov tswv yim tam sim no lub voj voog thiab cov lim tawm tswv yim Tsim cov khoom tso tawm lub voj voog thiab cov zis lim raws li qhov chaw ua haujlwm ntawm lub voj voog.