Kev Taw Qhia Txog Kev Paub Txog Cov Hluav Taws Xob Hluav Taws Xob Rau Cov Khoom Siv Siv

1, Taw qhia

Cov khoom siv hluav taws xob yog ib qho ntawm cov khoom siv feem ntau siv hauv kev sim kho vajtse, qhov tseem ceeb yog cov cuab yeej ntsuas siv los tswj cov khoom siv hluav taws xob sab hauv, rho tawm tam sim no los ntawm lub zog hluav taws xob, thiab faib hluav taws xob. Nws tso siab rau kev siv hluav taws xob hluav taws xob los siv hluav taws xob. Ntau tus phooj ywg uas nyuam qhuav nkag mus rau hardware lossis hardware test tsis paub qhov txawv ntawm lub zog thiab kev thauj khoom.

 

Fais fab mov: ib qho cuab yeej uas muab lub zog thiab cov zis tam sim no rau kev ua haujlwm ib txwm muaj ntawm cov khoom siv kuaj.

Load: Ib lub zog siv hluav taws xob siv los nqus cov zis tam sim no ntawm cov cuab yeej kuaj thiab hloov tam sim no rau hauv kev siv cua sov.

 

2, Electronic load classification

 

Raws li hom kev thauj khoom, cov khoom siv hluav taws xob feem ntau muab faib ua peb hom: DC hluav taws xob hluav taws xob, AC hluav taws xob hluav taws xob, thiab AC / DC hluav taws xob hluav taws xob.

 

DC, raws li lub npe qhia, thauj khoom hluav taws xob ntawm DC cov khoom lag luam thiab cov khoom siv hluav taws xob AC ntawm cov khoom siv AC.

 

3, Kev ua haujlwm dav dav ntawm cov khoom siv hluav taws xob

 

Cov khoom siv hluav taws xob feem ntau muaj cov qauv ua haujlwm, xws li CC, CV, CR, CP, CZ, thiab lwm yam kev ua haujlwm.

 

CC (tam sim no tsis tu ncua) hom kev ua haujlwm

CC hom yog hom siv ntau tshaj plaws. Thaum cov khoom siv hluav taws xob tau teeb tsa rau hom tam sim no, tus nqi tam sim no ntawm cov khoom tseem tsis hloov txawm tias qhov hloov pauv sab nraud li cas. Nws yuav tsum raug sau tseg tias qhov voltage hauv hom no tsis tau programmed. Txawm li cas los xij, yog tias qhov hluav taws xob siv los ntawm cov cuab yeej kuaj tau dhau los ntawm tus nqi tso cai nyob rau hauv qhov teev tam sim no, lub overvoltage tiv thaiv mechanism ntawm lub tshuab hluav taws xob tau qhib thiab qhov kev mus los raug kaw.

 

Cov theem tam sim no ntawm cov khoom siv hluav taws xob ntau hauv CC hom tau muab faib ua ob theem: qib qis tam sim no (CCL) thiab qib siab tam sim no (CCH), txhawm rau txhim kho cov khoom raug.

 

CV (siab tsis tu ncua) ua haujlwm hom

Thaum cov khoom siv hluav taws xob nyob rau hauv qhov kev ua haujlwm tsis tu ncua, nws yuav sim nqus tam sim no txaus los tswj cov khoom siv hluav taws xob hluav taws xob ntawm tus nqi teeb tsa. Lub load voltage ntawm hluav taws xob loads yog tas li, thiab cov khoom siv tam sim no hloov tas li.

MOS pipeline voltage yog muab faib los ntawm R2 thiab R3, thiab tom qab ntawd xa mus rau lub chaw ua haujlwm amplifier + IN, uas yog tus nqi muab thaum xam. Qhov kev hloov ntawm qhov voltage ntawm point A yuav cuam tshuam qhov conductivity ntawm Q1 rau LM358, yog li suppressing qhov kev hloov ntawm voltage ntawm point A thiab ua kom nws tas li.

 

CR (tsis tu ncua) ua haujlwm hom

Thaum cov khoom siv hluav taws xob nyob rau hauv qhov kev ua haujlwm tsis tu ncua, qhov tam sim no siv los ntawm cov khoom siv hluav taws xob yog proportional rau qhov voltage, uas yog, qhov tsis kam yog qhov tsis tu ncua.

 

CP (lub zog tas li) ua haujlwm hom

Thaum cov khoom siv hluav taws xob nyob rau hauv hom hluav taws xob tas li, cov khoom siv thauj khoom hloov kho lub zog siv ntawm cov cuab yeej ntsuas raws li tus nqi hluav taws xob ruaj khov los ntawm qhov kev pab cuam. Lub hwj chim tas li hluav taws xob hluav taws xob feem ntau yog ua los ntawm lub voj voog tsis tu ncua. Lub hauv paus ntsiab lus yog tias tom qab ua piv txwv los ntawm microcontroller, qhov input voltage thiab tso zis tam sim no raug xam raws li cov nqi hluav taws xob, thiab lub zog tsis tu ncua yog ua tiav los ntawm kev hloov pauv tam sim no.