Feem ntau, thaum lub transistor tsis ua haujlwm, tag nrho cov cuab yeej, ntawm qhov nws suav nrog, ua tsis tiav. Txhawm rau txiav txim siab seb qhov khoom puas tau ua kom tsis zoo, nws yuav tsum kuaj xyuas. Qhov no yuav xav tau cov khoom siv yooj yim uas muaj rau yuav luag txhua tus neeg ua haujlwm hauv tsev.
Tsim nyog
- - soldering hlau, flux nruab nrab thiab cam;
- - tester lossis multimeter;
- - transistor tester.
Cov Lus Qhia
Kauj ruam 1
Ua kom tsis txhob muaj cov twj uas muaj cov transistor. Muag nws, nco qab lub pinout. Feem ntau, nws tau qhia ncaj qha rau ntawm lub rooj tsavxwm uas electrode ntawm lub cuab yeej txuas nrog rau qhov twg. Yog tias cov ntaub ntawv no tsis muaj, nrhiav lawv hauv phau ntawv qhia lossis hauv Is Taws Nem.
Kauj ruam 2
Txoj kev yooj yim tshaj plaws los ntsuas cov transistor yog txuas rau tus txuas tshwj xeeb ntawm multimeter. Nws qhia txog yam txuas twg txuas cov hluav taws xob twg ntawm lub cuab yeej, nyob ntawm nws cov qauv. Lub teeb txwv hloov nyob rau hauv cov ntaub ntawv no yuav tsum nyob rau hauv txoj hauj lwm cim li "hFe". Yog tias qhov ntsuas pom qhia qhov hloov pauv tam sim no ze rau cov nominal rau hom transistor no, ces nws nyob rau hauv kev ua haujlwm tau zoo.
Kauj ruam 3
Kev kuaj xyuas nruj dua yog ua nrog lub tester lossis multimeter hauv ohmmeter hom. Rau cov khoom siv nrog tus qauv n-p-n, ob leeg junctions (tus sau thiab emitter) yuav tsum qhib nrog qhov hluav taws xob zoo ntawm lub hauv paus, thiab rau p-n-p tus qauv transistor, muaj qhov tsis zoo. Hauv thim rov qab polarity, qhov kev hloov pauv yuav tsum tau kaw. Rau cov digital multimeter hauv ohmmeter hom, rho tawm feem ntau nyob ntawm cov kev sojntsuam dub, rau tus taw tes tester, hloov ua lwm yam. Nco ntsoov pom nyob rau hauv cov lus qhia los ntawm ntsuas lub ntsuas qhov luv-Circuit Court tam sim no nyob rau hauv ohmmeter hom. Nws yuav tsum tsis pub ntau tshaj qhov tso cai tshwj xeeb rau kev hloov ntawm transistor.
Kauj ruam 4
Txuas lub collector ntawm n-p-n transistor mus rau qhov zoo ntawm lub hwj chim sib txuas nrog voltage ntawm 3 - 4 volts los ntawm kev sib txuas ntawm lub Circuit Court ntawm 1 kilo-ohm resistor thiab LED (anode mus rau qhov zoo). Txuas lub emitter ncaj qha rau cov Rho tawm ntawm tib lub hauv paus. Cov kab hluav taws xob yuav tsum tawm. Tam sim no txuas ntxiv rau ntawm txuas ntxiv ntawm lub hwj chim sib txuas los ntawm lwm 1K ohm resistor mus rau lub hauv paus ntawm cov transistor. Lub LED yuav tsum taws tawm. Yog tias koj sim p-n-p transistor, rov qab qhov polarity ntawm qhov fais fab mov thiab LED.
Kauj ruam 5
Lub tshuab hluav taws xob hluav taws xob siab tuaj yeem ua haujlwm zoo thaum ntsuas hluav taws xob tsawg, tab sis tawg los ntawm kev ua haujlwm. Xws li cov cuab yeej yuav tau hloov nyob rau hauv txhua rooj plaub.
Kauj Ruam 6
Yog tias koj xav kuaj cov transistors ntau zaus, sib sau ua ke tus ntsuas tshwj xeeb rau qhov no, piv txwv, raws li cov qauv hauv qab no:
Kauj Ruam 7
Raws li cov ntawv xeem, txiav txim siab seb puas yuav hloov lub transistor lossis txhim kho nws rov rau hauv Circuit Court.
