Taw qhia rau qhov ntsuas kev ntsuas ntawm DC ua haujlwm voltage ntawm multimeter
Qhov no yog ib txoj hauv kev ntsuas DC cov kev ntsuas dC cov hluav taws xob voltage thiab cov kev ua haujlwm hluav taws xob ntawm cov khoom siv hluav taws xob uas siv cov hluav taws xob ntau ntawm DC hluav taws xob ntau thaum muaj hluav taws xob; Tshawb nrhiav DC voltage qhov tseem ceeb ntawm txhua tus pin ntawm cov IC rau hauv av, piv nrog ib txwm muaj nuj nqis, thiab tom qab ntawd compress qhov yuam kev los txheeb xyuas cov khoom tsis haum. Thaum ntsuas, xyuam xim rau yim cov ntsiab lus hauv qab no:
(1) Pultimimeter yuav tsum muaj qhov txaus sab hauv kev tsis kam, tsawg kawg 10 zaug ntau dua qhov tsis kam ntawm Circuit Txwv, kom tsis txhob muaj qhov ntsuas tsis pom tseeb.
(2) Feem ntau, tig txhua lub potentiometer mus rau nruab nrab txoj hauj lwm. Yog tias nws yog TV, lub teeb liab qhov chaw yuav tsum siv tus qauv xim bar teeb liab generator.
(3) Qhov kev sojntsuam lossis sojntsuam yuav tsum tau nruab nrog kev ntsuas ntawm khau khiab. Ib lub sij hawm luv luv hauv paus circuitary tuaj yeem yooj yim puas tsuaj lub ic. Cov hau kev hauv qab no tuaj yeem ua rau tiv thaiv cov kev sojntsuam los ntawm cov zawv zawg cov kev sojntsuam, thiab txuas cov lus qhia ntawm kev sojntsuam los ntawm kev xav txog {1}}. 5 hli. Qhov no tsis tuaj yeem tsuas yog sib cuag tau zoo ntawm qhov ntxeev ntawm cov kev sojntsuam thiab cov ntsiab lus sib tiv thaiv, nws yuav chwv cov ntsiab lus nyob ib sab, nws yuav tsis luv-corruit.
(4) Thaum lub voltage ntawm qee tus pin tsis phim tus nqi qub, nws yog qhov tsim nyog los ua haujlwm ntawm lub pins ib txwm muaj los txiav txim siab qhov zoo ntawm lub IC.
(5) Qhov hluav taws xob ntawm IC pins cuam tshuam los ntawm cov khoom siv hluav taws xob. Thaum muaj kev xau, lub luv ntawm Circuital, qhib Circuities, lossis cov nqi sib txuas nrog cov khoom siv hluav taws xob sib txawv, lossis thaum lub zog ntawm cov potentiidometer sliding npab yuav ua rau hloov pauv ntawm tus pin.
(6) Yog tias qhov hluav taws xob ntawm txhua tus PIN ntawm IC yog qhov qub, nws yog feem ntau suav hais tias lub ic yog qhov qub; Yog tias qhov hluav taws xob ntawm cov pins hauv IC yog qhov txawv txav, nws yuav tsum tau txheeb xyuas rau cov kev ua txhaum nyob rau hauv lub ntsiab lus uas qhov kev sib txawv ntawm tus nqi qub yog qhov siab tshaj plaws. Yog tias tsis muaj kev ua yuam kev, IC yuav raug puas ntsoog.
(7) Rau cov khoom siv hluav taws xob zoo xws li TV, qhov voltage ntawm txhua tus pin ntawm lub IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC ntawm IC Yog tias nws pom tias qhov hluav taws xob ntawm cov pins yuav tsum tsis hloov tab sis hloov chaw uas muaj kev hloov pauv, thiab qhov chaw hloov tau, nws tuaj yeem txiav txim siab tias IC yog puas.
(8) rau cov khoom siv nrog ntau hom kev ua haujlwm, qhov voltage ntawm txhua tus pin ntawm IC ntawm IC kuj txawv nyob rau hauv cov qauv sib txawv.
