LM317T: lub hwj huam mov Circuit Court ntawm ib tug haib tswj

Nyob rau micro-LM317T thaiv daim duab ntawm fais fab mov (PSU) simplifies ntau lub sij hawm. Firstly, nws yog ua tau kom lub haum. Secondly, qhov stabilization ntawm lub hwj chim ua. Thiab rau kev txheeb xyuas ntawm ntau pib xyaum ua xov tooj cua tswv, no microassembly ntawm lub sij hawm superior rau domestic counterparts. Nyob rau hauv kev, nws qhia yog heev loj, nws tsis mus rau kev sib piv nrog rau lwm yam caij.

Lub hauv paus ntawm lub hwj huam mov - transformer

Nws yog tsim nyog los siv raws li cov voltage converter kauj ruam-down transformer. Nws yuav siv rau yuav luag txhua tsev neeg cov khoom siv - recorders, TV poob lawm, thiab lwm yam Nws yog tseem tau mus siv transformers hom TCEs-110, uas tau ntsia nyob rau hauv lub chav tsev ncej PP dub-thiab-dawb TV poob lawm .. Txawm li cas los, lawv muaj ib tug tso zis voltage ntawm 9 V thiab qhov tam sim no yog heev me me. Thiab yog hais tias koj xav tau faiv fab tso lub high-power neeg, nws yog kom meej meej tsis txaus.

Tab sis, yog hais tias koj xav mus ua ib tug haib PSU, nws yog tsim nyog los siv lub hwj chim transformers. Lawv muaj peev xwm yuav tsum muaj tsawg kawg yog 40 watts. Nyob rau hauv thiaj li yuav micro LM317T fais fab mov rau cov DAC tsis koj xav tau lub tso zis voltage yog 3.5-5 V. Nws yog tsim nyog los tswj cov nqi nyob rau hauv cov zaub mov saw ntawm lub microcontroller. Nws yog tau hais tias ob winding yog yuav tsum tau rau ib nyuag hloov. Primary li tsis rewound, nws yog nqa tawm tsuas rwb thaiv tsev (yog tias tsim nyog).

rectifier theem

Rectifier tsev - qhov no assemblage ntawm semiconductor diodes. Tsis muaj dab tsi nyob rau hauv nws tsis yog yooj yim, nws yog tsim nyog xwb los mus txiav txim qhov kev txiav txim, yog dab tsi hom ntawm rectification koj xav siv. lub rectifier Circuit Court tej zaum yuav:

• ib nrab-yoj;
• full-yoj;
• choj;
• doubling, tripling, voltage.

Xeem tsim nyog yuav thov yog hais tias, piv txwv li, tso zis hauv lub transformer koj muaj 24, thiab koj yuav tsum tau 48 los yog 72. Qhov no yuav inevitably txo cov qhov tso zis tam sim no, nws yuav tsum tau coj mus rau hauv tus account. Rau ib tug yooj yim hwj chim muab lub feem ntau haum rectifier choj Circuit Court. Siv microassembly LM317T fais fab mov yog tsis haib yuav ua. Yog vim li cas rau cov uas - lub hwj chim ntawm lub nti nws tus kheej tsuas yog 2 watts. Choj Circuit Court kuj eliminates lub hloov mus hloov los, thiab nws muaj lub efficiency yog ntau ntau (thaum piv rau cov ib nrab-yoj Circuit Court). Pub nyob rau hauv lub rectifier theem siv raws li ib tug diode cov rooj sib txoos thiab neeg lub Cheebtsam.

Housing rau fais fab mov

Raws li ib tug khoom siv rau lub vaj tsev yog wiser siv cov yas. Nws yog ib qho yooj yim rau cov txheej txheem, amenable mus deformation thaum lub sij hawm cov cua kub. Nyob rau hauv lwm yam lus, koj yuav tau yooj yim ua rau ib daim ntawv uas teb. Thiab nws tsis tau ib tug ntev lub sij hawm rau drilling. Tab sis nws yog tau mus ua hauj lwm me ntsis thiab ua ib tug zoo, robust tsev nyob ua los ntawm daim ntawv txhuas. Ntawm chav kawm, nrog rau nws yuav muaj ntau hassle, tab sis cov tsos yuav stunning. Tom qab ua lub cev los ntawm daim ntawv txhuas, nws yuav huv si ntxuav, luam thiab thov ob peb khaubncaws sab nraud povtseg cov xim muaj hlau thiab cov kua roj vanish.

Nyob rau hauv tas li ntawd, thaum koj tua ob tug noog nrog ib pob zeb - tau ib lub cev zoo nkauj thiab muab ntxiv txias ntawm lub micro. Nyob rau LM317T fais fab mov lub tsev raws li lub hauv paus ntsiab lus hais tias cov stabilization yog nqa tawm nrog kev tso tawm ntawm ib tug loj npaum li cas ntawm tshav kub. Piv txwv li, koj muaj lub tso zis ntawm lub rectifier 12 V, thiab stabilization yuav tsum tau muab 5 V. Qhov ntawd yog qhov sib txawv, 7 Volt mus rau cua sov rau cov micro-vaj tse nyob. Yog li ntawd, nws xav tau ib tug high-quality txias. Thiab txhuas tsev nyob yuav ua rau kom qhov no. Txawm li cas los, koj yuav ua li cas ntau tshaj - mounted rau cov radiator kub mus, uas yuav tswj lub thawv txias.

Tsav voltage stabilization

Yog li ntawd, koj muaj ib tug microassembly LM317T, lub hwj huam mov Circuit Court nyob rau hauv pem hauv ntej ntawm nws ob lub qhov muag, koj tam sim no yuav tsum qhia hais tias lub hom phiaj ntawm nws cov lus xaus. Lawv nws muaj tsuas yog peb - tawm tswv yim (2), qhov hluav taws xob (3) thiab qhov ceeb thawj (1). Tig lub cev mus fim lawv tus kheej, numbering ntawm sab laug mus rau sab xis. Tus ntawd yog nws, tam sim no nws yog tsim nyog los nqa tawm voltage kev cai. Thiab yuav ua rau nws yooj yim, Yog hais tias ib tug transformer rectifier tsev thiab npaj txhij. Raws li koj paub, rho tawm hauv lub rectifier nkag mus rau tus thawj davhlau ya nyob twg los ua ke. Nrog rectifier ntxiv mov voltage tshwm sim nyob rau hauv lub thib ob tso zis. Los ntawm peb lub stabilized voltage yog muab tshem tawm. Wherein lub tswv yim thiab tso zis yuav tsum nruab ib lub electrolytic capacitors nrog ib tug muaj peev xwm ntawm 100 uf, thiab 1000 uf feem. Hais tias yog tag nrho, cia li nyob hauv lub tawm, nws yog ntshaw kom xa qhov kuj (ntawm qhov kev txiav txim ntawm 2 k), uas yuav cia sai electrolytes tawm tom qab switching tawm.

Tsav fais fab mov voltage uas muaj peev xwm yuav tau kho

Ua hloov tsev nyob rau hauv LM317T lub hwj chim yog ib qho yooj yim, nws tsis yuav tsum tau tshwj xeeb kev txawj ntse thiab kev txawj ntse. Yog li ntawd, koj twb muaj lub hwj chim mov nrog stabilizer. Tam sim no koj yuav tau upgrade nws me ntsis los mus hloov lub tso zis voltage, nyob ntawm seb dab tsi koj yuav tsum tau. Nws yog txaus mus tua cov thawj xaus ntawm micro rho tawm lub hwj chim. Los ntawm cov tawm tig ob resistances nyob rau hauv series - ib qhov (nominal 240 ohms) thiab AC (5 ohms). Nyob rau hauv qhov chaw ntawm lawv kev twb kev txuas txuas lub thawj davhlau ya nyob twg microassembly. Cov yooj yim manipulations ua rau lub adjustable fais fab mov. Wherein lub siab tshaj plaws voltage thov kom lub tswv yim LM317T, tej zaum yuav 25 volts.

ntxiv nta

Nrog rau kev siv ntawm micro LM317T Circuit Court fais fab mov yuav ntau haumxeeb. Ntawm cov hoob kawm, thaum lub sij hawm lub lag luam lub hwj huam mov, koj yuav tsum tau nqa tawm cov kev tswj tseem ceeb tsis. Piv txwv li, lub tswv yim tam sim no los yog cov qhov tso zis voltage (qhov no yog tshwj xeeb tshaj yog muaj tseeb rau cov adjustable Circuit Court). Yog li ntawd, cov ntsuas yuav tsum tau kev txhawb nyob rau hauv vaj huam sib luag. Nyob rau hauv tas li ntawd, koj yuav tsum paub yog muaj yog hais tias tus network fais fab mov. Cov nyiaj npaj rau qhia rau koj ntawm lub xam nyob rau hauv daim phiaj yog ib qho zoo rau haj yam tso siab lub LED. Qhov no siv yog heev txhim khu kev qha, tab sis lub hwj chim rau nws yuav tsum tau noj nrog lub rectifier tso zis, tsis micro.

Yuav kom tswj tau tam sim no thiab voltage yuav siv tau nrog dial indicators kawm tiav scale. Tab sis nyob rau hauv cov ntaub ntawv, yog tias koj xav kom ua ib lub hwj chim mov uas yuav tsis tawm los mus rau lub laboratory, nws yog tej zaum yuav siv LCD qhia. Txawm li cas los, tam sim no thiab voltage ntsuam rau LM317T fais fab mov Circuit Court yuav nyuab vim hais tias ntawm qhov yuav tsum tau siv ib lub microcontroller thiab ib tug tshwj xeeb tsav tsheb - tus tsis caij. Nws tso cai rau koj yuav tsum tau kev cob cog rua rau lub input-output chaw nres nkoj ntawm lub maub los LCD zaub.