TTL Logic Level Tester Pen: 5 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29

Polarity Tester Pen & TTL Logic Level Tester Pen.

Tus cwj mem ntsuas ntsuas polarity no txawv me ntsis vim tias nws muaj peev xwm ntsuas qib TTL thiab qhia qhov xwm txheej ntawm 7 ntu qhia siv nrog cov ntawv: "H" (Siab) rau qib kev xav "1" thiab "L" (Tsawg) rau kev xav qib "0".

Hauv cov lus qhia no kuv yuav qhia koj yuav tsim ib qho li cas.

Kauj Ruam 1: Cov Lus Qhia Ua Haujlwm

Hauv thawj daim duab koj tuaj yeem pom cov duab.

Piav qhia:

Lub voj voog yog qhov yooj yim heev. Tus TTL oscillator "Phase Shift Oscillator" (saib daim duab oscilator) suav nrog 3 lub logic inverter cov chaw nres nkoj ntxiv rau cov tsav tsheb Circuit Court rau LEDs ntawm 7 -ntu zaub (CA - Common Anode) kom qhib rau ntu raws li qhov tsim nyog kuaj pom los ntawm PROBE cov lus qhia.

Cov oscillator Circuit….. ua dab tsi? …. oscillates:)…. los ntawm kev tsim cov tsheb ciav hlau ntawm cov noob hauv cov zis (tus pin 6 ntawm CD-4069 IC); LEDs nyob ntsais ntsais thaum lub taub sojntsuam xoob ntawm lub rooj ntev zaum….. Lub sijhawm tas li ntawm qhov oscillator no yog txiav txim siab los ntawm R1, R2 thiab C2. Txij li R1 yog nyob rau hauv parallel nrog R2 nws daim ntawv sib npaug resistor Req = R1 || R2.

Hauv peb qhov xwm txheej oscillation zaus (nyem ntawm cov ntu ntu) yog: 7Hz (saib cov mis los xam zaus hauv daim duab).

XOV XWM

1 - Thaum cov lus qhia sojntsuam tsis txuas nrog rau ib qho taw tes hauv qhov kev sim ntsuas, cov zaub yuav pom cov tsiaj ntawv "H" thiab "L" hloov pauv raws li qhov zaus ntawm oscillator.

2 - Thaum cov lus sojntsuam txuas nrog qib qis "0" (Tsawg) ntawm qhov kev ntsuas Circuit Court lub tsheb ciav hlau ntawm cov noob taum tau txiav tawm thiab lub hauv paus teeb liab tau hloov pauv los ntawm kev qhib tus tsav tsheb los ua tsab ntawv "L" ntawm cov zaub. Ib feem ntawm Circuit no yog tsim los ntawm lub rooj logic IC2D (inverter), T1 (tsav tsheb) thiab diodes D7, D8 thiab D9 (los ua tsab ntawv L hauv cov zaub).

3 - Thaum cov lus sojntsuam txuas nrog lub logic qib siab "1" (Siab) ntawm qhov kev ntsuas hauv Circuit Court, lub tsheb ciav hlau ntawm cov noob qoob loo raug txiav tawm thiab lub teeb liab zoo tau hloov pauv ob zaug (1 - 0 -1) los ntawm kev ua tus tsav tsheb mus rau tsim tsab ntawv "H" ntawm lub vijtsam. Ib feem ntawm lub Circuit Court suav nrog lub rooj logic IC2E thiab IC2F (inverters), T2 (tsav tsheb) thiab diodes D2, D3, D4, D5 thiab D6 (los ua tsab ntawv H ntawm cov zaub).

Lub zog ua haujlwm tuaj yeem sib txawv ntawm 5 txog 15V, nws txhais tau tias: koj tuaj yeem siv tus cwj mem no los ntsuas TTL/CMOS qib hauv digital circuits (0 txog 5V), tab sis koj kuj tseem tuaj yeem siv nws los ntsuas qib hauv kev sim tsheb thiab tswj cov txheej txheem rau piv txwv (0 - 12V)…. nws yog pab tau heev

Kauj ruam 2: Cheebtsam

Hauv qab cov npe khoom

1 x CD -4069 (CMOS - rau inverter);

1 x A -551SR (7 ntu sisplay - hom anode);

2 x 2N-3904 (NPN lub hom phiaj dav dav transistor);

8 x 1N-4148 (diode);

1 x 1N4001 (diode);

1 x 10K (resistor);

1 x 100K (resistor);

1 x 220K (resistor);

1 x 1 uF (electrolitic capacitor)

1 x 100nF (ceramic capacitor)

Luam Circuit Board

Hlau

Cov cuab yeej

Kauj Ruam 3: Luam Circuit Board

1. Thawj daim duab qhia pom ib sab ntawm PCB;
2. Daim duab thib ob qhia txog daim npog qhov ncauj;
3. Daim duab thib peb qhia txog lub hauv qab ntawm PCB;

Koj yuav tsum tau khawb ib lub PCB raws li tau hais los saum no thiab laum lub qhov rau cov khoom sib txuas thiab cov laug raws li qhia hauv daim duab thawj.

Nco tseg tias: PAD1 yog rau qhov ua tau zoo, PAD2 yog rau qhov tsis zoo Siv cov tooj liab hloov pauv tau yooj yim cov txiv tsawb pins lossis cov nab kuab claws.

Thawj Eagle (version 5.10.0) cov ntaub ntawv suav nrog cov duab (qhov loj me tiag) rau kev luam ntawv, nyob hauv - ABMS GitHub

Kauj Ruam 4: Piv Video - ua lus Portuguese

Kuv thov txim tab sis cov vis dis aus yog lus Portuguese (kuv hom lus ib txwm).

Kuv yuav tshuav koj daim vis dis aus ua lus Askiv.

Tab sis nws tuaj yeem pom qhov haujlwm ua haujlwm, Ua tsaug ntau ntau

Brazilian tos txais txhua tus neeg thoob plaws ntiaj teb.:)

Kauj Ruam 5: Kev Sib Txuas Ntxiv

Kuv cov kev sib cuag:

1 - Blogger: arduinobymyself.blogspot.com.br

2 - youtube:

3 - Skype: marcelo.moraes

4 - Cov lus qhia:

5 - GitHub:

6 - google+:

7 - Email: