Dab tsi yog 12v AC siv rau?
Dab tsi yog 12v AC siv rau?

Video: Dab tsi yog 12v AC siv rau?

Video: Dab tsi yog 12v AC siv rau?
Video: tus kooj po no yog ib tus kooj tiv thaiv tau ntau yam nawb 2024, Kaum ib hlis
Anonim

AC thiab DC kuj siv thaum xa mus rau qhov hluav taws xob thiab hluav taws xob teeb liab uas tsis yog tam sim no! Piv txwv li: a 12 V AC lub zog hluav taws xob muaj qhov hloov pauv hluav taws xob (uas yuav ua rau muaj qhov hloov pauv tam sim no). Lub teeb liab hluav taws xob yog qhov hluav taws xob lossis tam sim no uas xa cov ntaub ntawv, feem ntau nws txhais tau tias yog qhov hluav taws xob.

Zoo sib xws, 12v siv rau dab tsi?

Tag nrho cov khoom siv fais fab peb muag yog 12 v DC Lawv siv cov tswv yim los ntawm 100V txog 220V AC, uas yog dab tsi tawm los ntawm koj lub qhov (socket) phab ntsa, thiab tso tawm 12 v DC Qhov no yog dab tsi feem ntau cov khoom siv xws li LCD cov ntxaij vab tshaus, DVD players, Hard Drives, Audio Gear, thiab feem ntau lwm cov khoom siv digital siv.

Tsis tas li, AC adapter siv rau dab tsi? AC adapter . Lwm lub npe hu ua AC /DC adapter , AC converter lossis charger, ib AC adapter yog sab nrauv hwj chim khoom siv nrog cov khoom siv uas khiav ntawm cov roj teeb lossis tsis muaj lwm yam hwj chim qhov chaw. AC adapters pab txo qhov loj me ntawm lub khoos phis tawj laptop los ntawm kev txo qhov xav tau tus qauv loj hwj chim muab.

Xav txog qhov no, kuv puas tuaj yeem siv 12v AC hloov 12v DC?

Yog hais tias nws yog piv txwv, ib tug raug 7812 12 v tus tswj hwm, nws xav tau yam tsawg 14V los ua haujlwm kom raug. Yog tias nws yog tus tswj hluav taws xob qis dua (hais, tsis zoo li 9V lossis 5V) nws yuav ua haujlwm zoo. Nrog AC , tam sim no ntws los ntawm 4 diodes, pub mis DC tsuas yog siv 2. Yog li lawv yuav tsum tuav ob npaug ntawm qhov tam sim no (uas tej zaum yuav tsis zoo).

Puas yog 12v LED khiav ntawm AC?

Rau khiav ib LED -based cov khoom siv los ntawm cov khoom siv hluav taws xob (piv txwv li 120 V AC ) xav tau cov khoom siv hluav taws xob nruab nrab ntawm cov khoom siv thiab cov cuab yeej siv lawv tus kheej los muab DC voltage (piv txwv li 12 V DC) muaj peev xwm tsav tau ntau yam LEDs . Ib txoj hauv kev tshiab yog los txhim kho AC - LEDs , uas tau khiav ncaj qha los ntawm ib qho AC fais fab mov.

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