Yuav ua li cas mus thov ib tug voltage regulator 12 volts

Raws li hais tseg circuits qhov hwj chim rau ua hauj lwm amplifiers ntawm uas tsis muaj zog qhov chaw feem ntau yog siv nyob rau hauv ob peb volts (12-15). Rau hnub tim, lub feem ntau lug kis volt voltage regulator 12 configured siv ib tug peb-davhlau ya nyob twg kev units. Lawv lub hom phiaj yog kom tau ib tug txawv zis voltage thiab qhov ntau ntawm cov hluav taws xob tam sim no. Main Cheebtsam - kev circuits yog KR142EN8B domestic ntau lawm thiab mas analogues series MS78hh thiab MS79hh los yog cia li 78hh thiab 79hh.

Domestic thiab txawv teb chaws hom stabilizers

Lavxias teb sab KR142EN8B ib chav tsev (abbreviated lub npe KREN8B) muab ib qho tso zis voltage ntawm kaum ob volts.

Txawv stabilizers aforementioned series muaj cov nram qab designations: thawj zaug txawm tooj (78) qhia tau hais tias lub hom phiaj - zoo tso zis tam sim no, ib tug khib tooj (79) - ib tug tsis zoo tso zis voltage. Lub ob tug lej tom qab (12 los yog 05) indicative ntawm cov zis hwj chim ntawm tus hluav taws xob tam sim no. Piv txwv li: 7912 - IC - 12V voltage regulator nrog tsis zoo polarity, 7805 - nti - tib yam unit, tsuas 5 volts thiab nrog ib tug zoo polarity.

Peb-davhlau ya nyob twg regulator li nws lub npe qhia, muaj peb outputs uas muab kev twb kev txuas mus rau ib qho sab nraud hluav taws xob Circuit Court: cov tswv yim, cov zis thiab zuag qhia tag nrho. Yuav kom txuas mus rau ib lub hwj chim qhov twg los rau vaj tse ( "teb chaws") siv ib qho tso zis. Lub tswv yim thiab cov terminals yog siv los muab cov tswv yim voltage thiab cov qhov tso zis peb tau ua hauj lwm rau cov lus xaus ntawm lub "tawm" thiab "ntau".

Lub voltage regulator 12 volts yuav ua hauj lwm feem ntau nyob rau hauv cov ntaub ntawv, yog hais tias tus tswv yim tam sim no thaum lub siab tshaj plaws permissible load tso zis tshaj tsawg kawg yog 2.5 volts. Tus nqi ntawm cov nyiaj pab ntau tshaj hwj chim tswv yim yuav tsum tsis txhob ntau tshaj peb caug volts. Tsis tas li ntawd, nco ntsoov tias lub zog tswv yim voltage muab hwj chim nce, 12b stabilizer pib yuav tsum tau rhuab. Raws li, nws yog tsim nyog los tiv thaiv kom txhob puas tsuaj rau kev siv thaum tshav kub kub lub dab ntxuav tes.

Standard fais fab mov yog tau koom ua ke los ntawm cov electrolytic capacitor rau 10,000 microfarads, ib tug tag nrho-yoj choj rectifier ntawm diodes nrog ib tug rov qab voltage ntawm 50 volts direct tam sim no thiab 3A, lub fuse (0.5 A). voltage regulator nws tus kheej 12 volts - 7912 los yog 7812 (KREN8B).

Siv lub dho apparatus rau xws li ib tug tshuab yuav tsum tau Tso lub tshuab hluav taws xob Cheebtsam nyob rau hauv xws li ib tug txoj kev uas qhov ntev ntawm mounting tebchaw yog tus nqi qis tshaj, thiab qhov kev tshem tawm ntawm lub radiator - coob. Rau cua txias, nws yog qhov zoo tshaj plaws mus coj ib tug txheej txheem ribbed dab txaus deg hauv cheeb tsam, los yog hlau phaj.

Qhov chaw thov sib txuas ntxiv ntawm voltage regulator 12 volts, tso cai rau lawv siv rau lub hwj huam mov ntawm ntau hom ntawm pab kiag li lawm thiab blocks tua nrog kev siv ntawm TTL kev logic circuits, xws li pab kiag li lawm rau tsheb tsheb.