Video: Kuv puas tuaj yeem siv 12v AC los siv zog 12v DC?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
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).
Xav txog qhov no, qhov txawv ntawm 12v AC thiab 12v DC yog dab tsi?
A) nrog a digital universal ntsuas, feem, nrog 20V AC voltage thiab 20V DC voltage cov ntaub ntawv ntsuas, cov txiaj ntsig yuav yog txawv . B) txoj kev ntsuas yooj yim: nrog a cwj mem stylus (cwj mem tsis zoo tib yam) ntawm xaim tawv taub hau, 12 V AC tseem yuav qhia, 12V DC tso tsis muaj zaub 12V DC tso muaj kev nyab xeeb tshaj 12 V AC.
Tom qab ntawd, lo lus nug yog, koj hloov pauv 12 volt AC rau DC li cas? Cov hauv qab no yog cov kauj ruam los hloov 230V AC rau 12V DC.
- Transformer: Txuas 230V AC mus rau 230 rau 30V kauj ruam nqis transformer.
- Rectify: Txuas tus choj ua los ntawm plaub Diodes.
- Lim: Txuas lub lim, uas lim tawm ripples los ntawm lub teeb liab.
- Tswj: Txuas LM317, thiab tswj cov zis rau 12V.
Ib yam li ntawd, tib neeg nug, yuav 12v AC LED khiav ntawm DC?
Tsis muaj ib yam zoo li no AC LED . Muaj ib lub voj voog sab hauv uas tej zaum suav nrog tus choj txuas thiab qhov txwv tam sim no. Yog muaj, nws yuav ua haujlwm zoo ntawm 12 volts DC.
Dab tsi siv 12v DC fais fab mov?
Voltage: Txhua yam cov khoom siv fais fab peb muag yog 12V DC tso . 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 12V DC tso . Nov yog qhov feem ntau ntawm cov khoom siv digital xws li cov ntxaij vab tshaus LCD, cov neeg ua DVD, Hard Drives, Audio Gear, thiab feem ntau lwm yam khoom siv digital siv.
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