Rau cov neeg uas cia li pib mus coj cov thawj kauj ruam nyob rau hauv electronics, nws yog ib qho tseem ceeb rau pib qhov chaw. Zoo, peb xav kom koj paub koj tus kheej nrog lub tswv yim uas tej zaum yuav pab tau nyob rau hauv lub neej yav tom ntej thiab nyob rau tib lub sij hawm muab ib lub tswv yim ntawm yuav ua li cas ib yam dab tsi yuav tsum tau ua. Yuav ua li cas mus xaiv, yog tias koj xav mus ua ib tug yooj yim hluav taws xob lub tsev ua rau koj tus kheej ob txhais tes? Ntawm no yog cov kev xaiv uas yuav siv tau nyob rau hauv lub neej txhua hnub.
Tej yam yooj yim hwj chim tswj rau cov mos mos pib teeb
Qhov no hom ntawm ntaus ntawv yog dav siv. Qhov yooj yim - ib tug pa diode uas yog kev cob cog rua nyob rau hauv series nrog lub load. Tej kev cai yuav siv tau los cas sim haum lub lag luam ntawm lub incandescent teeb, thiab kuj yuav tiv thaiv kom txhob overheating ntawm cov soldering hlau. Tej zaum lawv kuj yuav siv tau los hloov lub hwj chim nyob rau hauv ib tug ntau ntawm cov qhov tseem ceeb. Thawj yuav tsum yog tus yooj yim tshaj plaws hluav taws xob lub tsev ua rau koj tus kheej txhais tes. Schemes koj yuav saib tau nyob ntawm no.
Yuav ua li cas los tiv thaiv tiv thaiv mains voltage hloov mus hloov los
Qhov no unit disconnects lub load yog hais tias tus mains voltage yog tawm ntawm ntau yam. Feem ntau pom tau hais tias tsis pub dhau lub qub sib txawv ntawm 10% los ntawm tus txheej txheem. Tab sis vim yog qhov ntawm lub hwj chim mov system nyob rau hauv peb lub teb chaws xws li ib tug lub moj khaum yog tsis ib txwm cai. Yog li, lub voltage tej zaum yuav ntau dua li 1.5 lub sij hawm los yog ntau qis tshaj li tsim nyog. Cov no feem ntau unpleasant - cov khoom tsis. Yog li ntawd, muaj ib tug xav rau ib tug ntaus ntawv uas yuav kaw lub load ua ntej ib yam dab tsi yuav muaj lub sij hawm mus hlawv. Tab sis thaum koj tsim tau ib lub qhob yuav tsum tau ceev faj, vim hais tias cov ua hauj lwm yuav tsum nqa tawm nrog loj nro.
Yuav ua li cas yuav ua rau ib tug muaj kev ruaj ntseg transformer
Nyob rau hauv ntau yam hluav taws xob designs feem ntau lawv siv transformerless fais fab mov. Feem ntau xws uas tsis muaj zog kiag li lawm, thiab kom tsis txhob muaj hluav taws xob shocks, lawv muab tso rau hauv ib qho insulating yas vaj tse nyob. Tab sis tej zaum koj yuav tsum tau kho, thiab ces tus tiv thaiv ntawm lub kuaj lub cev uas tau tuag. Kom tsis txhob raug mob, siv ib tug rho tawm transformer kev ruaj ntseg. Nws kuj yuav pab tau nyob rau hauv lub kho thiab xws li. Structurally lawv muaj ob tug zoo tib windings, txhua tus uas yog tsim los rau ib tug nyob voltage network. Feem ntau, qhov no hom ntawm lub hwj chim transformers txawv nyob rau hauv ntau 60-100 watts, zoo tsis yog yuav tau kho ntau yam electronics.
Tej yam yooj yim hwj chim thaum muaj xwm ceev teeb pom kev zoo
Yuav ua li cas yog tias koj yuav tsum nyob rau hauv cov kev tshwm sim ntawm lub hwj chim tsis ua hauj lwm yuav ua rau lub teeb ntawm lub site? Lo lus teb rau tej kev cov nyom yuav pab raws li ib tug thaum muaj xwm ceev teeb, ua rau lub hauv paus ntawm tus qauv zog-saving teeb, lub hwj chim ntawm uas tsis pub tshaj 11 watts. Yog li ntawd, yog hais tias koj xav kom lub teeb yog qhov chaw nyob rau hauv txoj kev hauv tsev, nqi hluav taws xob chav tsev los yog nyob rau hauv lub chaw ua hauj lwm, nws yog tsim nyog los muab qhob. Feem ntau nyob rau hauv lub xub ntiag ntawm voltage lawv khiav lag luam ncaj qha los ntawm lub mains. Thaum nws disappears, lub teeb pib ua hauj lwm nyob rau hauv roj teeb lub hwj chim. Thaum lub voltage yog rov qab los mus rau lub network thiab lub teeb yuav ua hauj lwm, thiab txiav them lub roj teeb. Qhov zoo tshaj plaws hluav taws xob lub tsev ua rau lawv tus kheej ob txhais tes twb tshuav nyob rau thaum kawg ntawm tsab xov xwm.
Cov kauj ruam-up regulator hwj chim Soldering
Nyob rau hauv tus neeg mob qhov twg nws yog tsim nyog los solder los sis loj heev qhov chaw feem ntau nws txo qis mov voltage, siv cov solder yuav problematic. Thiab mus nce ua hwj huam regulator tau tawm ntawm no qhov teeb meem. Nyob rau hauv cov neeg mob, cov load (ie, soldering) yog noj los ntawm lub rectified mains voltage. Cov kev hloov yog nqa los ntawm lub electrolytic capacitor, lub capacitance ntawm uas muab ib tug voltage ntau dua tshaj 1,41 nyob rau hauv lub network. Yog li, thaum tus qauv voltage nqi nyob rau hauv 220, nws yuav muab 310 V. Yog hais tias muaj yuav poob mus rau, hais tias, 160 V, nws hloov tawm hais tias 160 * 1.41 = 225.6 V, uas yuav khiav lag luam optimally. Tab sis qhov no tsuas yog ib qho piv txwv. Koj muaj lub sijhawm los ua ib tug Circuit Court, nws yog haum rau koj ib puag ncig.
Qhov yooj yim twilight mus (photorelay)
Raws li koj tsim qhov chaw tshiab tam sim no yuav tsawg dua yam yuav ua rau ib co zoo ntawm ntaus ntawv. Yog li ntawd, rau cov pa twilight hloov lawv yuav tsum tau cia li 3. Thiab ua tsaug rau tus tsim yooj yog tau thiab multipurpose siv: nyob rau hauv ib tug tsev; los taws rau pem hauv ntej khav los yog vaj ntawm ib tug private tsev, los sis txawm ib tug nyias muaj nyias ib chav. Taw rau cov yam ntxwv ntawm no tsim raws li ib tug twilight mus, hu xov tooj rau nws ntau "lub teeb teeb meem." Koj yuav nrhiav tau ib tug ntau ntawm qhov kev siv ntawm schemes uas tau raug ua los yog lovers, los yog industrialists. Lawv muaj lawv tus kheej txheej zoo thiab tsis zoo zog. Raws li tsis zoo zog feem ntau yog hu ua los yog qhov yuav tsum tau rau ib tug DC voltage qhov chaw los yog complexity ntawm lub Circuit Court. Tsis tas li ntawd, thaum yuav ib tug pheej yig thiab yooj yim kom paub meej los yog tag nrho poob lawm feem ntau txaus siab hais tias lawv tsuas hlawv. Lub haumxeeb tswvyim yog raws li nyob rau hauv peb lub Cheebtsam:
- Photocell. Feem ntau, nyob rau hauv nws to taub lub photoresistors, phototransistors thiab photodiodes.
- Comparator.
- Triac los yog relay.
Thaum muaj nruab hnub nrig, cov kuj nyob rau photocell yog tsawg tsawg, thiab cov voltage comparator tsis pub tshaj lub chaw pib. Tab sis ib tug muaj tsuas yuav tsaus ntuj - raws li ntawm no tib lub sij hawm tsim yuav tsum muaj.
xaus
Ntawm no yog ib co nthuav hluav taws xob lub tsev ua rau koj tus kheej ob txhais tes yuav ua tau. Qhov loj tshaj plaws thaum ib yam dab tsi tsis ua hauj lwm - kom ua, thiab ces txhua yam yuav tsum tau. Ib tug nce kev, koj yuav tsiv mus nyob rau ntau schemes.