Cov txheej txheem:

Txhim kho Semiconductor Curve Tracer Nrog Analog Discovery 2: 8 Cov Kauj Ruam
Txhim kho Semiconductor Curve Tracer Nrog Analog Discovery 2: 8 Cov Kauj Ruam

Video: Txhim kho Semiconductor Curve Tracer Nrog Analog Discovery 2: 8 Cov Kauj Ruam

Video: Txhim kho Semiconductor Curve Tracer Nrog Analog Discovery 2: 8 Cov Kauj Ruam
Video: Simple Transistor Curve Tracer for Oscilloscopes. 2024, Kaum ib hlis
Anonim
Txhim kho Semiconductor Curve Tracer Nrog Analog Discovery 2
Txhim kho Semiconductor Curve Tracer Nrog Analog Discovery 2

Tus thawj xibfwb ntawm txoj kab nkhaus taug qab nrog AD2 tau piav qhia hauv cov kab ntawv txuas hauv qab no:

https://www.instructables.com/id/Semiconductor-Cur…

https://reference.digilentinc.com/reference/instru…

Yog tias ntsuas tam sim no siab heev ces yog qhov raug lees paub. Txawm li cas los xij, ntsuas qis dua tam sim no, tsis muaj:

Kev ua yuam kev offset thiab hom kev txwv ntawm qhov muaj txiaj ntsig channel amplifiers

Kev nqes hav yuam kev vim yog cov sib tw resistors

Cov yuam kev no tsis tuaj yeem raug tshem tawm nrog AD2 cov cuab yeej ntsuas.

Kauj Ruam 1: Daim Duab Daim Duab nrog AD2 Internal Load Resistors

Daim duab kos duab nrog AD2 Internal Load Resistors
Daim duab kos duab nrog AD2 Internal Load Resistors

Muaj kev sib txuas ntawm lub tshuab hluav taws xob (W1), qhov dav ntawm 1 nkag siab qhov hluav taws xob poob ntawm qhov kev nkag siab tam sim no (CSRes) thiab cov channel 2 nkag siab qhov hluav taws xob ntawm lub cuab yeej hauv kev sim (DUT).

Kauj Ruam 2: Daim Duab Sib Piv Sib Piv

Sib npaug Circuit Diagram
Sib npaug Circuit Diagram

AD2 cov tswv yim nkag pins muaj 1MOhm rub-down resistors ntawm txhua tus pin nkag uas cuam tshuam rau qhov ntsuas tam sim no. Ob ntawm cov resistors no nyob rau hauv parallel ntawm DUT.

Kauj Ruam 3: Qhov cuam tshuam ntawm qhov ua yuam kev

Qhov cuam tshuam ntawm qhov yuam kev
Qhov cuam tshuam ntawm qhov yuam kev
Qhov cuam tshuam ntawm qhov yuam kev
Qhov cuam tshuam ntawm qhov yuam kev
Qhov cuam tshuam ntawm qhov yuam kev
Qhov cuam tshuam ntawm qhov yuam kev

Ntawm cov kab lus saum toj no yog DUT raug txiav tawm. Tam sim no lub siab tiv taus yog 330Ohm

Sab laug: Ntsuas ntsuas ntawm +10mA/-10mA zoo li raug

  • Sab saum toj txoj cai: Ntsuas ntsuas ntsuas pom qhov ua yuam kev nrog kev daws teeb meem ntau ntxiv ntawm +100uA/-100uA (sib npaug resistor ntawm 500kOhm rau DUT thiab txwv tsis pub siv ntau hom kev tsis lees paub (CMRR) ntawm cov channel 1 thiab qhov offset yuav luag xoom)
  • Hauv qab Txoj Cai: Ntsuas ntsug sib npaug rau daim duab saum toj. Tab sis ntawm no tau luv luv qhov kev nkag siab tam sim no. daim duab qhia CMRR yuam kev nkaus xwb (5V/500kOhm = 10uA, 26uA-17uA = 9uA nws nyob ze rau 10uA)

Kauj Ruam 4: Kev Them Nyiaj Yuam Kev Los Ntawm Kab Sib Nraus

Kev Them Nyiaj Yuam Kev Los Ntawm Kab Zis
Kev Them Nyiaj Yuam Kev Los Ntawm Kab Zis

Ib tsab ntawv luv tuaj yeem ua qhov no tau.

Nws ua haujlwm li cas:

Txhawm rau xam cov kab zauv yog plaub qhov tsim nyog:

Min/Max ntawm ch1 (tam sim no) thiab tseem ntawm ch2 (voltage)

Vim tias qhov hluav taws xob ntawm ch1 qis heev, yog vim li cas Math2 lim ch1.

Thaum kawg, cov lej sib npaug yuav sau rau Math1.

Tsab ntawv ntawm sab xis yuav ua tiav los ntawm kev nias lub pob khiav ntawm lub qhov rais tsab ntawv, yam tsis muaj kev txuas nrog DUT. Kev tso tawm yuav yog Ch1 tsis yog Math2, vim tias kev lim dej ua rau qee qhov qeeb thiab uas ua rau muaj kab ob.

Kauj ruam 5: Tsab Ntawv

Tsab ntawv
Tsab ntawv

Nov yog tsab ntawv tag nrho uas tshem tawm qhov ua yuam kev. Cov lus piav qhia ntawm cov lus txib tseem ceeb muaj nyob hauv kev pab ntawm Waveforms Application software.

Kauj Ruam 6: Teeb Meem

Teeb Meem
Teeb Meem
Teeb Meem
Teeb Meem

Math2 lim Ch1, qhov no yog qhov tsim nyog los suav qhov Min/Max parameter raug. Math1 qhia txog cov lej sib npaug.

Kauj Ruam 7: DUT Piv Txwv: LED

DUT Piv txwv: LED
DUT Piv txwv: LED
DUT Piv txwv: LED
DUT Piv txwv: LED

Sab nraub qaum qhia tus cwj pwm nrog them nyiaj thiab sab xis raws li ib txwm muaj. Muaj qhov sib txawv tseem ceeb pom hauv kev daws teeb meem siab dua tam sim no.

Kauj Ruam 8: Xaus

Qhov piv txwv no qhia txog lub peev xwm muaj peev xwm ntawm AD2 cov lus sau. Yooj yim siv, sau tau zoo AD2 cov lus txib thiab zoo heev rau kev debug.

Muaj cov ntaub ntawv chaw ua haujlwm AD2 rau rub tawm muaj.

Ceev faj hloov qhov txuas ntxiv ntawm cov ntawv rau.zip thiab unzip cov ntawv ua ntej siv nrog AD2. Upload ntawm.zip txuas ntxiv tsis txhawb los ntawm kev qhia.

Lwm qhov haujlwm muaj nyob ntawm trenz electronic: LCR-Meter (Excel VBA)

Pom zoo: