Qhov txawv ntawm Hloov Tam Sim No (AC) thiab Direct Tam Sim No (DC)

Qhov txawv ntawm Hloov Tam Sim No (AC) thiab Direct Tam Sim No (DC)
Qhov txawv ntawm Hloov Tam Sim No (AC) thiab Direct Tam Sim No (DC)

Video: Qhov txawv ntawm Hloov Tam Sim No (AC) thiab Direct Tam Sim No (DC)

Video: Qhov txawv ntawm Hloov Tam Sim No (AC) thiab Direct Tam Sim No (DC)
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Anonim

Alternating Current (AC) vs Direct Current (DC)

Alternating Current (AC) thiab Direct Current (DC) yog ob hom tam sim no uas siv los xa hluav taws xob rau txhua qhov chaw hauv ntiaj teb. Ob qho tib si tam sim no muaj lawv cov yam ntxwv tshwj xeeb nrog qhov zoo thiab siv hauv cov khoom siv sib txawv thiab. Thaum DC yog unidirectional thiab ntws nyob rau hauv ib qho kev taw qhia nkaus xwb, AC nce thiab ntog raws li nws pheej hloov cov kev taw qhia. Txawm li cas los xij, lawv zoo ib yam li ob qho tib si koom nrog kev ntws ntawm electrons. Tab sis lawv qhov zoo sib xws xaus ntawm no vim tias lawv muaj peev xwm sib txawv thiab lawv qhov sib txawv pib nrog txoj kev ob yog tsim thiab kuj yog txoj kev uas lawv kis tau thiab siv.

Kev hloov pauv tam sim no

AC yog hom tam sim no uas muab hluav taws xob rau tsev thiab lag luam. Yog vim li cas vim li cas thiaj xaiv DC yog vim nws yooj yim ntawm kev tsim khoom thiab kev sib kis. Hauv cov chaw fais fab txawm tias lawv yog cov thee, cua turbines lossis hydro fais fab, tam sim no yog tsim nyob rau hauv rotating turbines uas yog li tsim AC. Lub turbine, thaum rotating tsim magnetic teb uas thawb thiab rub electrons nyob rau hauv cov hlau. Qhov kev thawb tas mus li no ua rau muaj qhov tam sim no hloov mus tas li, thiab yog li qhov hloov pauv tam sim no.

Direct Current

DC yog hom tam sim no uas tsim los ntawm qhov chaw uas tsis muaj qhov txav mus los. Cov qauv zoo ntawm DC yog cov hnub ci vaj huam sib luag thiab cov roj teeb zoo tib yam. Lub zog tshuaj nyob rau hauv lub roj teeb thawb electrons nyob rau hauv ib qho kev taw qhia nkaus xwb thiab yog li tam sim no uas yog tsim los kuj unidirectional. Ib qho tshwj xeeb uas koj yuav tsis paub yog tias feem ntau ntawm cov khoom siv hluav taws xob xws li TV's thiab DVD's muaj cov khoom tsim hauv AC / DC adapter thaum lawv ua haujlwm ntawm DC thaum cov khoom siv hauv tsev yog AC.

DC yog qhov tsim nyog rau kev thauj mus los ntev txawm tias nws tsis siv los ntawm cov neeg siv khoom. Nws tau hloov dua siab tshiab rau hauv AC ua ntej xa mus rau hauv tsev thiab kev lag luam.

Cov khoom siv hluav taws xob xav tau qhov tam sim no tsis tu ncua uas tsis tuaj yeem ua tau nrog AC vim nws rov qab tas li. Txawm li cas los xij, muaj cov khoom siv xws li qhov muag teev, kiv cua, CFL thiab lwm yam uas tuaj yeem ua haujlwm ntawm AC thiab DC vim lawv tsuas xav tau cov hluav taws xob ntws thiab cov kev taw qhia tsis tseem ceeb rau lawv. Tej zaum koj yuav tsis pom tab sis thaum lub teeb pom kev siv AC, nws tas li tig rau thiab tawm thaum AC hloov cov lus qhia 50-60 zaug hauv ib pliag. Tab sis txij li qhov kev hloov pauv no nrawm heev, peb tsis tuaj yeem pom txawm tias lub teeb yuav mus thiab mus. Cov khoom siv xws li tshuab ntxhua khaub ncaws tuaj yeem ua haujlwm ntawm AC nkaus xwb vim nws lub cev muaj zog tuaj yeem tig ntawm AC nkaus xwb. Nrog lub tshuab ntxhua khaub ncaws tsis siv neeg, nws tau dhau los ua qhov nyuaj nrog lub cev muaj zog khiav ntawm AC thaum nws lub vijtsam thiab lub computer nrog DC nrog kev pab los ntawm DC converter.

Nws tsis tuaj yeem piv AC thiab Dc vim tias ob qho tib si muaj qhov zoo raws li tau piav qhia los ntawm kev siv cov khoom siv hauv tsev. Ob leeg yuav tsum tau thiab tsis muaj ob qho tib si ntau ntawm cov cuab yeej peb cia siab heev li yuav tsis ua haujlwm.

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