Txhim Kho Yooj Yim Kho DC Lub Hwjchim Mov: 5 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:31

Ua haujlwm txuas ntxiv: Kuv yuav ntxiv cov ntawv piav qhia txog qhov khoom no ua haujlwm zoo li cas thiab cov duab qhia hauv ob peb hnub tom ntej no. Muaj twb tau ob peb cov lus qhia txog kev siv linear voltage regulator chips rau lub zog qis-sim thiab cov haujlwm. Nov yog kuv qhov kev hloov pauv ntawm cov ntawd, siv tus tswj hwm kev tso tawm qis kom tso cai qis dua cov lus tawm suab thiab ntxhib/hloov kho qhov system.

Kauj Ruam 1: Qhov Chaw thiab Cov Cuab Yeej

Koj yuav xav tau cov khoom siv hauv qab no: LDO cov ntsuas hluav taws xob xws li MC33269TO-220 cov cua sov thiab cov ntsia hlau ntsaws ntsaws Capacitors txhawm rau lim tus tswj hwm cov tswv yim thiab tso tawm hluav taws xob 240 ohm resistorTwo potentiometers: 1Kohm lossis ntau dua rau kev hloov ntxhib, 100 ohm rau qhov zoo Kuv siv cov tshuab txiav rau ob lub lauj kaub, txij li lawv yog qhov me me thiab nyuaj rau hloov kho lub zog txuas: lub PCB-mount coaxial jack rau cov tswv yim thiab cov ntsia hlau txuas rau cov zis feem ntau yog qhov yooj yim los ua haujlwm nrog 3-4 square inches ntawm perfboardSome hookup lossis tsheb npav hlau Koj yuav tsum muaj cov cuab yeej no muaj: Soldering hlauSmall screwdriverPliers thiab cov tshuab txiav hlau Ib rab riam ntse uas tuaj yeem txua koj lub ntsej muag zoo li tus #11 X-ACTO hniav li niaj zaus. (los yog 1/8 laum ntsis)

Kauj ruam 2: Circuit Schematic

Txheeb cov ntaub ntawv rau koj tus tswj hwm kom paub meej txog dab tsi tus nqi hluav taws xob yuav tsum tau siv thiab yuav ua li cas xaim lub ntsuas hluav taws xob hloov pauv tau. Hloov chaw ntawm ib qho kev sib txawv tsis sib xws los kho qhov hluav taws xob, Kuv ntxiv qhov thib ob rau kev kho kom raug. Nrog ob lub resistors hauv series, qhov hluav taws xob nyob ntawm qhov sib npaug ntawm ob, yog li kho qhov kev tswj hwm zoo (uas muaj qis dua kev tiv thaiv) yuav hloov qhov tso tawm hluav taws xob qeeb.

Kauj Ruam 3: Mounting Power Jack thiab Regulator

Qhov zoo tshaj plaws ntawm DC lub zog fais fab siv ob lub pins loj uas dav dhau los kom haum rau hauv tus qauv perfboard qhov. Txhawm rau txhawm rau txhim kho lub jack, koj yuav tsum txiav qhov dav hauv lub rooj tsavxwm. Kuj tseem muaj lub davhlau ya nyob twg thib peb ntawm lub jack siv rau kev hloov pauv. Txij li qhov kev siv hluav taws xob no tsis siv lub davhlau ya nyob twg, thiab vim nws tau txais txoj hauv kev, koj tuaj yeem khoov nws tawm ntawm txoj kev lossis txiav nws tawm. /8 me ntsis, nthuav dav qhov uas twb muaj lawm. Medium- thiab cov cuab yeej siv hluav taws xob siab siv cov khoom siv TO-220 uas tuaj yeem txuas rau lub rhaub dej kom nyab xeeb kom tsis txhob muaj cua sov ntau ntxiv. 4-40 threaded qhov tapped ze rau saum.

Kauj Ruam 4: Txhim Kho Lwm Yam Khoom

Mount cov khoom seem uas seem ntawm lub rooj tsavxwm thiab muab lawv sib dhos ua ke raws li cov txheej txheem.

Kauj Ruam 5: Yuav Siv Li Cas

Txuas lub DC fais fab mov (AC adapter, USB cable, roj teeb pob, lub tshuab hluav taws xob, thiab lwm yam) mus rau qhov txuas txuas. Txuas lub voltmeter mus rau qhov tso tawm thiab kho cov potentiometers los xaiv qhov hluav taws xob uas koj xav tau. Thaum kawg, txuas koj lub voj voog thauj khoom mus rau qhov tso tawm kom muab nws lub zog.