Benchtop DC Fais Fab Khoom: 4 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:24

Qhov no tau ua tiav ntau pua zaug ntawm no ntawm Cov Ntawv Qhia, tab sis kuv xav tias qhov no yog qhov haujlwm pib zoo rau txhua tus neeg xav tau nkag mus rau hluav taws xob raws li kev nyiam. Kuv yog Asmeskas Navy Cov Kws Txuj Ci Hluav Taws Xob, thiab txawm tias muaj cov cuab yeej ntsuas kim ntawm kuv qhov pov tseg, Kuv tseem xav txog qhov kev hloov pauv pheej yig ntawm kuv nyiam thiab ntau yam khoom siv ntau yam.

CEEB TOOM: Cov Lus Qhia no xav kom siv cov cuab yeej siv zog. Ib txwm siv kev tiv thaiv qhov muag thaum ua haujlwm cov cuab yeej siv zog. Hluav taws xob tsis yog dag. Cov kws tshaj lij feem ntau kuv paub, kuv tus kheej suav nrog, tau "raug" ua ntej. Ib txwm txheeb xyuas tias lub zog raug tshem tawm ua ntej ua haujlwm ntawm cov khoom siv hluav taws xob (thiab tiv thaiv koj tus kheej kom raug).

Qhov zoo tshaj plaws ntawm txoj haujlwm no yog tias nws pheej yig thiab yuav luag txhua tus tuaj yeem ua nws. Daim pib yooj yim tsuas yog niaj hnub ATX-style fais fab mov los ntawm lub khoos phis tawj tsis zoo. Txheeb xyuas cov neeg ua haujlwm, ib tus neeg nyob ze koj yog tej zaum muab ib qho!

Cov khoom seem, txawm li cas los xij, tej zaum koj yuav tau yuav. Kuv yuav kuv li ntawm Radio Shack vim tias nws hla txoj kev. Lwm qhov chaw suav nrog Mouser, Digikey, thiab Amazon. Kuv tau siv kwv yees li $ 50 ntawm qhov vim kuv xav tau ntau yam kev tso tawm. Qhov hloov pauv tau tuaj yeem ua tau, tab sis cov hluav taws xob ruaj khov yog qhov zoo rau kuv daim ntawv thov.

Khoom siv:

Cov hlua hlau

Soldering Hlau

Shrink tubing (los yog kab xev hluav taws xob)

Laum thiab xaiv cov khoom

Xim tus cim, txheej txheej, tus tsim daim ntawv lo, lossis Sharpie

Kauj Ruam 1: Daim Ntawv Teev Npe

Rau qhov haujlwm no, kuv xav tau +12V thiab 5V. ATX cov khoom tseem muab 3.3V, yog li kuv ntxiv lub jack rau qhov ntawd. Thaum kuv xub tsim qhov no, Kuv muaj hauv kuv lub siab tias kuv yuav siv nws ntau los ntsuas cov cuab yeej tso suab tsheb thiab lwm yam khoom siv hauv tsheb. Txij thaum ntawd los, Kuv tau ua haujlwm ntau ntxiv nrog TTL, CMOS, thiab microcontrollers. Xav txog koj cov kev xav tau thiab npaj kom haum.

Kuv siv cov hauv qab no:

2 txiv tsawb dub rau hauv av thiab -12V

4 liab txiv tsawb liab rau qhov ua tau zoo

1 on/off toggle hloov

1 lub LED liab los qhia tias tau siv lub zog

2 txiv tsawb ntsaws

1 teeb ntawm kev sim coj nrog cov kais dej (36 ) (txiav ib nrab los tsim ob txoj hauv kev)

*Nco tseg: koj tuaj yeem yuav cov ntawv xeem uas twb tau txiav nrog gator clips

** Cov ntawv ceeb toom ntxiv: Yog tias kuv yuav rov tsim kho hnub no, kuv yuav siv lub cim xim xim, nrog liab rau 5V, daj rau 12 volts, thiab tej zaum ntsuab lossis xiav rau 3.3V. Qhov no tsis tsim nyog, tab sis kuv xav tias nws txhim kho kev nyab xeeb los ntawm kev ua kom pom meej heev uas qib hluav taws xob koj tab tom nkag mus.

Kauj ruam 2: Qhib rooj plaub

1. Txiav lub hwj chim

2. Qhib koj rooj plaub: Muaj cov kab ntawv xim xim nyob hauv. Siv lub ntsuas (lossis nyeem lub rooj tsavxwm) txhawm rau txiav txim siab qhov hluav taws xob kis los ntawm txhua tus. Hauv kuv qhov xwm txheej, 12V yog daj, liab yog 5V, thiab txiv kab ntxwv yog 3.3V. Dub yog (ze li) ib txwm hauv av, tab sis ib txwm txheeb xyuas.

3. Txiav txim siab qhov chaw koj xav txhim kho koj cov kev tswj hwm: Kuv yuav tsum ua si ib puag ncig nrog kuv rooj plaub me ntsis txhawm rau txheeb xyuas qhov twg kuv tuaj yeem nce cov txiv tsawb nkaus yam tsis cuam tshuam nrog cov khoom sab hauv. Thaum koj ua tiav koj qhov chaw nyob, laum koj lub qhov kom tsim nyog. Cov ntim feem ntau qhia qhov yuav tsum tau ua qhov loj me me qhov yuav tsum tau ua, tab sis koj kuj tseem tuaj yeem ntsuas nrog cov ntsuas ntsuas yog tias cov ntaub ntawv no tsis muab.

3a ib:. Kuv txiav feem ntau ntawm cov xov hlau tawm, khaws qee qhov ntawm txhua qib hluav taws xob rau kev rov ua dua tshiab. Txiav cov xov hlau uas seem no kom ntev, hle qhov xaus, thiab muab lawv txuas rau qhov chaw tsim nyog.

3b: Feem ntau cov khoom siv hluav taws xob hauv computer xav tau lub teeb liab kom qhib, thiab kuv lub ntsej muag tsis txawv. Koj tuaj yeem pom hauv daim duab tias cov xov hlau ntsuab thiab dawb mus rau qhov hloov pauv. Thaum tus tes hloov qhov kaw (ON), qhov no "sawv" cov khoom siv hluav taws xob. Lub 5V tseem tau siv rau LED, uas ua haujlwm los qhia tias lub hwj chim tau ua haujlwm. Nco ntsoov suav nrog tus tiv thaiv tam sim no (220 ohm feem ntau zoo tagnrho).

Kauj ruam 3: Muab tag nrho ua ke

4: Tom qab koj laum koj lub qhov mounting thiab txhim kho koj cov khoom, koj tuaj yeem rov txuas cov ntaub ntawv npog. Qhov no yuav xav tau qee qhov finesse kom tau txais txhua yam kom haum. Kev siv cov cua sov ua kom sov me me, kab xev hluav taws xob, lossis txawm tias yog cov kais dej (nws yog cov xim pleev xim roj hmab) yuav tiv thaiv ib qho uas tuaj yeem ua rau luv luv.

5: Kuv xaim txhuam cov ntaub ntawv kom nws zoo nkauj (thiab tseem tshem tawm txhua yam ntawm kuv tus cwj mem xaum). Hauv qhov no, koj yuav tsum sau daim ntawv tso tawm. Kuv li yog li no:

Sab laug dub tshaj plaws muab -12V thaum sab xis yog hauv av. Lub tsho liab, ntawm sab laug mus rau sab xis, yog 3.3 (x1), 5 (x1) thiab 12v (x2). Raws li tau hais los saum no, yog tias kuv yuav rov ua txoj haujlwm no hnub no, Kuv yuav ntxiv 5V jacks ntxiv. Kuv yuav raug ntxias kom tshem tawm 3.3V, tab sis nws yuav muaj txiaj ntsig yog tias kuv pib ua haujlwm nrog cov tswj hluav taws xob qis rau yav tom ntej.

Lub +12V yog qhov zoo yog tias koj ua ntau tinkering nrog lub tshuab ua haujlwm zoo. Lub zog hluav taws xob bipolar ua kom yooj yim tsim cov txheej txheem rau AC teeb liab tau txais txiaj ntsig ntau. Tsis tas li ntawd, feem ntau cov kev siv hluav taws xob tsuas yog paub qhov sib txawv ntawm ob qhov chaw. Xws li, -12V thiab 12V yuav muab +24V, -12V thiab +5V muab +17V, thiab -12V thiab +3.3V muab +15.3V.

6: Ntawm qhov no, koj tuaj yeem ntsaws koj lub hwj chim tshiab thiab txheeb xyuas qhov ntsuas hluav taws xob siv lub tshuab ntsuas ntau. Rau cov coj, Kuv tau siv cov txheej ntawm tus nab kuab clip sim ua, txiav ib nrab thiab muab cov hlais txiav rau cov txiv tsawb ntsaws. Txiv tsawb ntsaws yog qhov kev xaiv zoo vim tias lawv tseem tuaj yeem siv hauv ib lub 'meter', txwv cov naj npawb ntawm cov cuab yeej sib txawv thiab cov ntawv txuas uas xav tau rau koj cov cuab yeej siv.

Kauj Ruam 4: Vim Li Cas Kuv Thiaj Li Ua Li No?

Kev siv rau qhov pheej yig, ruaj khov zog yog qhov txwv. Nws tuaj yeem muab lub zog rau cov phiaj xwm phiaj xwm rau cov tub ntxhais kawm engineering lossis thev naus laus zis, siv los ntsuas cov khoom siv tsheb lossis khoos phis tawj, lossis lub zog arduino thiab/lossis Raspberry Pi cov phiaj xwm thiab cov khoom siv tsis tas nyob ntawm koj lub computer USB chaw nres nkoj (qhov kev pheej hmoo txaus siab).