Basic Transistor Tester: 7 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Hauv cov lus qhia no kuv yuav qhia koj yuav ua li cas los tsim Tus Kheej Transistor Tester!

Kauj ruam 1: Intro

Hauv qhov haujlwm no kuv yuav siv ib qho ntawm kuv nyiam IC's, 555 lub sijhawm, los tsim qhov yooj yim transistor tester Circuit nrog cov ntawv luam tawm 3D uas kuv tuaj yeem tso rau hauv kuv lub hnab lossis lub thawv ntawv. Nws yog ib qho yooj yim heev transistor tester Circuit tab sis nrawm dua siv lub multimeter thiab mus rau lub davhlau ya nyob twg mus rau lwm qhov. Kuv nquag yuav cov transistors hauv qhov ntau thiab ntau ntawm lawv kuv tau pom tias tsis ua haujlwm yog li kuv vam tias tus ntsuas no yuav pab txuag qee lub sijhawm.

Kauj Ruam 2: 555 Timer Tom Qab

Lub 555 Timer yog lub sijhawm zoo tshaj plaws uas tuaj yeem ua raws li tus oscillator (hom astable) lossis ua timer (hom monostable). Hauv hom monostable nws zoo li lub sijhawm txhaj tshuaj ib zaug uas siv qhov ntsuas qhov hluav taws xob thiab cov chips tso tawm los ntawm qis mus rau siab raws li lub sijhawm teev tseg los ntawm sab nraud RC Circuit. Kuv tsis tshua siv lub 555 timer hauv hom monostable tab sis tau muaj ntau daim ntawv thov uas kuv tau siv IC hauv hom astable. Hauv hom no 555 ua raws li lub tshuab hluav taws xob plaub fab uas nws cov qauv siv tau tuaj yeem hloov kho los ntawm ob sab RC sab nraud.

Yog tias koj saib cov duab saum toj no, koj tuaj yeem pib pom qhov twg 555 lub sijhawm teev npe tau txais nws lub npe los ntawm, peb 5k resistors hauv koob. Cov resistors no ua peb kauj ruam faib hluav taws xob ntawm +Vcc thiab Hauv av. Cov txiaj ntsig los ntawm txhua qhov faib faib ua 2/3 Vcc thiab 1/3 Vcc uas tom qab ntawd muab pub rau hauv ob tus neeg sib piv. Ib tus neeg sib piv yog qhov yooj yim zoo nkauj, nws saib ntawm nws lub davhlau ya nyob twg + thiab - thiab yog + ntau dua li - cov tswv yim, nws ua rau cov zis siab lossis qis. Cov no tau pub rau hauv Set thiab Reset inputs ntawm flip-flop. Flip-flop saib ntawm S thiab R qhov tseem ceeb thiab ua rau siab lossis qis raws li qhov ntsuas hluav taws xob ntawm cov khoom siv. Siv sab nrauv RC Circuit peb tuaj yeem tswj tau qhov zaus ntawm tus pin tso tawm.

Kauj Ruam 3: Cheebtsam

1. 555 Timer IC

2. 100 thiab.01 uF capacitor

3. 10k potentiometer nrog txiv ntseej thiab npog

4.1K Resistor (2)

5. 2.5K Resistor

6. 100 Ohm Resistor

7. 9V Roj Teeb

8. LED

9. Soldering hlau

10. 3D tshuab luam ntawv thiab filament

Kauj Ruam 4: Hluav Taws Xob Schematic

Hauv qhov kev sib tham no kuv yuav siv 555 lub sijhawm teev nyob rau hauv hom kev yooj yim heev.

Lub 555 timer saum toj no ua haujlwm raws li hauv qab no.

1. Thaum lub hwj chim thawj zaug siv lub capacitor C1 yog thawj zaug tsis tau them. Qhov no txhais tau tias 0V nyob ntawm tus pin 2, yuam nws qhov sib piv siab. Qhov no tig teeb Q- qis thiab txij li thaum muaj qhov hloov pauv ntawm lub suab, teeb tus pin 3 siab uas tig rau ntawm NPN transistor. Rau PNP nws yuav siv lub voj voog rov qab.

2. Nrog Q- qis, NPN transistor sab hauv rau 555 tau muab tua, uas tso lub capacitor C1 them rau Vcc los ntawm R2 thiab R1.

3. Sai li tus capacitor nce mus txog 2/3 Vcc, tus sib piv mus rau qhov siab thiab rov pib dua lub flip-flop. Q- mus siab thiab tso tawm qis tig ntawm PNP transistor.

4. Lub 555 timers NPN transistor tig thiab tso lub capacitor hla R2 thiab R1.

5. Thaum lub capacitor nce mus txog 1/3 Vcc Q- mus qis thiab tso zis tawm, rov pib dua lub voj voog.

Kuv xav ua kom txoj haujlwm ua haujlwm rau PNP thiab NPN transistors uas qhov Circuit no ua los ntawm kev siv cov lus sib txawv los ntawm 555 lub sijhawm.

Lub sijhawm qhib/tawm yog txiav txim los ntawm cov hauv qab no:

Lub Sijhawm Qub =.693 (R2+R1)

Lub Sijhawm Siab =.693 (R3+R2+R1)*(C1)

Lub voj voog ua haujlwm yuav muab los ntawm:

Duty Cycle = Sijhawm Siab/ Sijhawm Siab + Sijhawm Qis

Los ntawm kev kho 10k potentiometer, kuv yuav tuaj yeem tswj qhov nrawm ntawm lub luag haujlwm. Nws yog qhov yooj yim los saib yuav ua li cas IC yooj yim thiab siv tau tuaj yeem siv hauv ntau qhov kev thov sib txawv.

Kauj Ruam 5: Tsim Circuit Court

Kuv hais qhia tias koj tsim lub Circuit Court ntawm lub khob cij ua ntej kom paub tseeb tias nws ua haujlwm. Tom qab koj tau sim lub Circuit Court tawm ntawm lub khob cij, tom qab ntawd pib ua kom tag nrho cov khoom sib xyaw mus rau ntawm lub rooj tsav tsheb.

Kauj Ruam 6: Tsim 3D thiab Luam Ntawv

Txij li thaum kuv xav kom tus ntsuas ntsuas yooj yim no kom ruaj khov txaus pov ib ncig hauv lub thawv ntawv, Kuv tsim qauv kev cai 3D luam ntawv thaiv.

Kuv xav kom tus ntsuas ntsuas nqa tau yog li kuv ua tus tuav yooj yim rau lub roj teeb 9V. Kuv kuj tau ua qhov rau lub khawm On/Off, potentiometer, LED, thiab rau kev sib txuas transistor.

Tom qab ntsuas lub rooj tsav tsheb perf thiab lub roj teeb 9V, Kuv txiav txim siab ua rooj plaub 100 x 60 x 25 mm.

Cov ntaub ntawv tuaj yeem rub tawm los ntawm yam sib txawv ntawm no.

Kauj Ruam 7: Sib sau ua ke thiab sim nws tawm

Tom qab koj tau muab koj cov laug cam tso pov tseg thiab luam tawm lub thawv ntawv, nws yog lub sijhawm los sib sau txhua yam ua ke thiab sim nws!

Koj yuav tsum tau teeb tsa/txuas txuas rau/tawm qhov hloov pauv, potentiometer, kev sib txuas ntawm transistor, thiab LED.

Thaum txhua yam tau teeb tsa/txuas nrog, qhib lub zog, ntxig rau lub transistor, thiab yog tias nws ua haujlwm tau zoo, LED yuav ntsais muag. Koj tuaj yeem hloov kho lub zog ntsuas kom nce qhov nrawm ntawm 555 lub sijhawm tso tawm. Lub voj voog no tsis yog txhais tau tias yog tus ntsuas ntsuas zoo tab sis nws yuav ua haujlwm nrawm los saib seb lub transistor puas tag.

Ua tsaug rau kev nyeem ntawv!