DC rau tib neeg lub neej

Lub sij hawm "DC" muaj ob peb hom lus txhais, thiab txhua tus ntawm lawv tsim nyog tshwj xeeb mloog. Nyob rau hauv feem ntau tus neeg mob, cov tswvyim no yog hu ua ib tug hluav taws xob tam sim no muaj ib tug tsis tu ncua nyob rau hauv-lub sij hawm khoom, cov kev taw qhia thiab tej chaw. DC hav zoov no tsuas tau nyob rau hauv ib tug kaw Circuit Court. Qhov no yog vim qhov yuav tsum tau kom muaj ib tug tsis tu ncua voltage, uas yog siv rau qhov no phenomenon. Dua li ntawm qhov ntau DC qhov chaw, lub ntsiab txhais ib txwm tshua tau tib yam.

Direct tam sim no muaj ib tug xov tooj ntawm qhov chaw, uas muaj kev koom siv nyob rau hauv txhua hnub lub neej. Lub ntsiab sawv daws yuav yog rau hluav taws xob. Lub chaw no kuj photocells, galvanic hlwb thiab thermocouples. Qhov yooj yim hom DC qhov chaw yuav tsum tau hu ua roj teeb (roj teeb hlwb). Nyob rau hauv cov ntaub ntawv no, lub DC muaj ib tug yus feature - tus tau ntawm ntau yam kev siv, ua cov ntsiab heev pab tau thiab pheej yig nyob rau hauv txhua txhua hnub lub lag luam. Pom zoo, Yog hais tias txhua txhua lub sij hawm kis tau cov pa roj teeb rau cov koob yees duab, tus nqi ntawm cov duab yuav ua rau kom tshuam. Ua tus txheej txheem no tau vim cov cuab yeej ntawm reversibility ntawm tshuaj tshua.

Hluav taws xob cov cav tov thiab DC generators yog electromechanical DC lub hwj chim. DC Hwj chim qhov twg los - converting txhua yam hwj huam rau hauv hluav taws xob tam sim no. Nws yuav ib tug ntau yam ntawm hluav taws xob lub tsheb thiab lwm lub tsheb. Thiab nyob rau tib lub zus tau tej cov hluav taws xob raws li lwm txoj kev - cua thiab hydropower.

Muaj ob peb hom DC converters. Cov feem ntau variant - lub rectifier, uas yog feem ntau siv nyob rau hauv pab kiag li lawm khiav hauj lwm ntawm lub mains. Rectifiers yog txwv kom muab zais nyob ntawm lub hwj chim ntawm lub ntsiab rectifier Circuit Court, nyob ntawm seb tus xov tooj ntawm theem uas yog siv nyob rau hauv lub chaw ua hauj lwm. Tsis tas li ntawd co-DC amplifiers yog siv nrog lawv. Tsis tas li ntawd, embodiments yog tau kev faib tswj tso zis tsis los ntawm lub xub ntiag ntawm stabilization pab kiag li lawm. Tag nrho cov tau variants ntawm lub kev faib daim ntawv teev yog yuav luag tsis yooj yim sua. Tab sis, ib txoj kev los sis lwm, yuav luag tag nrho cov ntawm lawv yog cov tam sim no nyob rau hauv peb lub tsev thiab qhov, raws li yog tsis muaj lawv yog yuav luag tsis yooj yim sua rau siv niaj hnub khoom.

Direct tam sim no yog feem ntau yog siv nyob rau hauv ntau yam khoom. Lub hwj chim mov ntawm yuav luag tag nrho cov hluav taws xob circuits yog precisely lub fais tam sim no. Rau DC ntawm sufficiently xub ntiag ntawm ob nkag tau - free hluav taws xob nqi thiab ib tug hluav taws xob field.

Nyob rau hauv hnub no lub ntiaj teb no, hluav taws xob yog tsuas yog ua tshwj xeeb lub hwj chim. Qhov no tshwm sim tau tsuas yog nyob rau hauv lub hauv paus ntawm kev thiab economic xav txog kev teem. Tsaug rau qhov ncaj tam sim no hwj chim yog faib cov ntau receivers uas haus hwj chim tsis yog tas li, thiab lub alternating tam sim no. Nws yog tsuas yog thaum koj tuaj mus rau ib tug tej lo lus uas peb, ib tug alternating tam sim no yog hloov dua siab tshiab rau nyiaj tso ncaj tam sim no los ntawm tej yam yooj yim kiag li lawm. Lwm cheeb tsam ntawm daim ntawv thov ntawm DC nyob rau hauv lub niaj hnub ntiaj teb no - lub railways. Muaj ntau cov qauv ntawm cov hluav taws xob ua hauj lwm mas vim hluav taws xob tam sim no noj.

Raws li peb tau pom, ntawm tag nrho cov saum toj no uas muaj npe, peb yuav xaus uas lub DC nti muab cov hmoov txhuas nyob rau hauv tus txheej txheem ntawm tib neeg lub neej. Nws yog ib qhov nyuaj rau xav txog tej yam dab tsi yuav tshwm sim rau tib neeg yog hais tias tus hluav taws xob yuav ploj thiab ib qhov tam sim no thaum hmo ntuj!