Qhov Tseem Ceeb Qhov Sib Txawv - Kev Tswjhwm vs Tsis Tswjhwm Cov Khoom Siv Hluav Taws Xob
Feem ntau, cov khoom siv hluav taws xob yog cov khoom siv lossis hluav taws xob hluav taws xob uas muab lub zog (lub zog) rau lwm yam khoom siv hluav taws xob. Muaj ntau hom khoom siv hluav taws xob; tswj thiab tsis tswj cov khoom siv hluav taws xob yog ob yam xws li raws li hom kev tso zis. Hauv cov khoom siv hluav taws xob tswj hwm, qhov tso zis DC voltage yog tswj kom qhov kev hloov pauv ntawm cov khoom siv hluav taws xob tsis cuam tshuam rau hauv cov zis. Hauv qhov sib piv, cov khoom siv hluav taws xob tsis raug cai tsis muaj kev tswj hwm qhov hluav taws xob ntawm qhov tso zis. Qhov no yog qhov sib txawv tseem ceeb ntawm kev tswj hwm thiab tsis muaj kev tswj hwm lub zog. Txawm hais tias muaj cov khoom siv hluav taws xob AC hauv kev siv, cov khoom siv hluav taws xob tswj hwm thiab tsis tswj hwm feem ntau yog xa mus rau DC cov khoom siv hluav taws xob.
Txoj Kev Siv Hluav Taws Xob yog dab tsi?
Voltage regulation yog hais txog kev tswj xyuas qhov voltage ntawm qhov xav tau, uas tsim nyog rau cov khoom siv txuas nrog. Cov khoom siv hluav taws xob tswj hwm tswj qhov voltage txhawm rau muab cov khoom siv hluav taws xob zoo rau cov khoom siv hluav taws xob thiab hluav taws xob. Regulated DC voltage yog tsim los ntawm ib tug series ntawm sub-functions nyob rau hauv lub hwj chim mov.
Daim duab 01: Fais fab mov nrog Linear Voltage Regulator
Raws li tau pom hauv daim duab saum toj no, AC muab khoom yog thawj zaug nqis mus rau qib uas xav tau los ntawm lub tshuab hloov pauv. Tom qab ntawd, lub diode choj rectifying Circuit Court hloov qhov txo qis AC voltage mus rau qhov zoo waveform. Tom qab ntawd, lub lim dej uas tsim los ntawm cov kab txuas txuas txuas txuas ua ke ua rau lub zog zoo rippled-DC voltage. Tsis tas li ntawd, cov ripples nyob rau hauv DC yog tswj los ntawm ib tug voltage regulator Circuit Court uas outputs ib tug du DC voltage rau cov kev cob cog rua load.
Yog tias qhov tam sim no rub los ntawm kev thauj khoom (cov cuab yeej txuas nrog) tsawg dua qhov siab tshaj plaws ntawm cov khoom siv hluav taws xob, qhov hluav taws xob yuav tsis tu ncua ntawm cov khoom tam sim no. Lub hwj chim tswj tau pab khiav yuav luag tag nrho cov khoom siv hluav taws xob muaj vim lawv muaj kev nkag siab zoo rau cov kev hloov pauv hluav taws xob. Qee tus tuaj yeem hlawv ntawm qhov hluav taws xob ntau dhau thaum qee qhov ua haujlwm tsis raug. Yog li ntawd, nws yog ib qho tseem ceeb kom muaj ib tug du voltage mov.
Yuav ua li cas yog Unregulated Fais Fab?
Nyob rau hauv lub zog tsis muaj kev tswj hwm, kev tswj hwm qhov hluav taws xob tsis cuam tshuam. Txawm li cas los xij, qee qhov kev tswj hwm tau tshwm sim hauv cov khoom siv hluav taws xob tsis raug cai thiab. Nyob ntawd, tag nrho cov blocks nyob rau hauv cov tswj fais fab mov tshwj tsis yog lub voltage regulation thaiv kuj muaj nyob rau hauv ib tug unregulated fais fab mov. Zoo ib yam li cov khoom siv tswj hwm, AC input voltage yog ua tiav mus rau rippled DC voltage tso tawm ntawm lub lim capacitor. Txawm li cas los xij, tej zaum yuav muaj cov khoom siv hluav taws xob yam tsis muaj lub tshuab hluav taws xob zoo li no. Nyob rau hauv tas li ntawd, qeeb variations nyob rau hauv lub input AC voltages, xws li voltage sags, yuav tsum reflected nyob rau hauv cov zis. Txawm hais tias muaj lub suab nrov ntawm lub tshuab lim, tej zaum yuav muaj lub suab nrov nrov, uas yog los ntawm AC lub ntsiab ntawm qhov tso zis.
Qhov tsis zoo ntawm lub zog tsis muaj kev tswj hwm yog qhov tso tawm DC voltage nyob ntawm cov zis tam sim no. Ntawd yog, thaum lub load rub lub siab tam sim no vim nws qhov kev xav tau ntawm lub zog, DC voltage poob raws li lub zog xav tau. Txawm li cas los xij, cov khoom siv hluav taws xob tsis raug cai yog pheej yig dua vim tias muaj cov khoom siv tsawg dua. Lub tshav kub dissipation kuj tseem tsawg dua li kev tswj fais fab raws li tsis muaj hluav taws xob tswj hluav taws xob (qhov no yuav tsis muaj tseeb nyob rau hauv cov ntaub ntawv hloov pauv DC fais fab mov, uas qhov ua tau zoo dua qub).
Daim duab 02: Cov khoom siv hluav taws xob xws li LED qhov muag teev, uas tsis hnov mob me ntsis hauv qhov hluav taws xob tuaj yeem siv nrog cov khoom siv hluav taws xob tsis raug cai.
Dab tsi yog qhov txawv ntawm Kev Tswj Xyuas thiab Tsis Muaj Cov Khoom Siv Hluav Taws Xob?
Regulated vs Unregulated Power Supply |
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| Cov khoom siv hluav taws xob tswj tau muaj peev xwm muab kev tswj hwm DC voltage rau cov khoom siv hluav taws xob rhiab. | Cov khoom siv hluav taws xob tsis muaj hluav taws xob tsis muaj hluav taws xob tswj hluav taws xob; Yog li, txhua qhov kev hloov pauv hauv cov tswv yim AC yuav tshwm sim hauv cov zis. |
| tawm hluav taws xob | |
| Cov zis hluav taws xob ntawm cov khoom siv hluav taws xob tswj tsis sib txawv nrog qhov tam sim no rub los ntawm lub nra. Ntawd yog, qhov hluav taws xob tsis muaj kev ywj pheej ntawm kev thauj khoom tam sim no. | Cov zis hluav taws xob ntawm cov khoom siv hluav taws xob tsis raug tswj xyuas ib txwm hloov nrog cov zis tam sim no, feem ntau yog vim muaj qhov siab sab hauv ntawm lub zog hluav taws xob. |
| Cov khoom siv hluav taws xob xws li khoos phis tawj, TVs, thiab lwm yam yuav tsum tau siv cov khoom siv hluav taws xob uas tswj hwm. | Cov khoom siv hluav taws xob zoo li DC motors, LED teeb uas tsis nkag siab rau qhov hloov pauv me me tuaj yeem siv nrog cov khoom siv tsis raug cai. |
| Kev tswj hluav taws xob hluav taws xob hauv cov khoom siv hluav taws xob tswj tau yog qhov sib piv tus nqi tsim khoom. Yog li ntawd, cov khoom siv hluav taws xob tsis raug cai yog kim. | Cov khoom siv hluav taws xob tsis raug cai yog pheej yig dua los tsim vim lawv tsis muaj kev tswj hwm qhov hluav taws xob. |
Summary – Regulated vs Unregulated Power Supply
Cov khoom siv hluav taws xob yog siv los muab lub zog rau cov khoom siv hluav taws xob thiab hluav taws xob. Feem ntau ntawm cov khoom siv hluav taws xob siv hluav taws xob DC rau kev ua haujlwm, thiab lub zog DC no yuav tsum muaj qhov hluav taws xob huv thiab tsis tu ncua. Cov khoom siv hluav taws xob tswj hwm yog cov chav nyob uas hloov AC lub ntsiab hluav taws xob mus rau hauv qhov huv, tsis tu ncua DC voltage. Nrog rau kev siv lub tshuab hluav taws xob tswj hluav taws xob, qhov kev hloov pauv thiab lub suab nrov hauv cov tswv yim AC voltage yog zam nyob rau hauv cov zis. Nyob rau hauv sib piv, unregulated DC fais fab mov tsis muaj voltage tswj Circuit Court. Yog li ntawd, nws tsuas yog muab rippled-DC voltage los ntawm kev kho thiab lim cov AC. Qhov no yog qhov sib txawv tseem ceeb ntawm kev tswj hwm thiab tsis muaj kev tswj hwm lub zog. Tsis zoo li cov khoom siv hluav taws xob tswj hwm, cov khoom siv hluav taws xob tsis raug cai yuav cuam tshuam cov kev hloov pauv thiab suab nrov hauv cov tswv yim AC. Txawm li cas los xij, cov AC distortions no tuaj yeem txo tau los ntawm kev siv cov capacitors smoothing ntawm cov zis.
Download PDF Version of Regulated vs Unregulated Power Supply
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov rub tawm PDF version ntawm no Qhov txawv nruab nrab ntawm Kev Tswj Xyuas thiab Tsis Muaj Kev Tswj Xyuas Lub Zog.
