Dab tsi yog lub ntsiab lus qhia ntawm DC tswj fais fab mov
Cov kev qhia tseem ceeb ntawm DC stabilized fais fab mov
Cov kev qhia ntawm DC tswj fais fab mov tuaj yeem muab faib ua ob pawg: ib qho yog tus yam ntxwv Performance index, uas qhia txog cov yam ntxwv ntawm DC tswj fais fab mov, xws li input voltage, output voltage, tso zis tam sim no, thiab tso zis voltage hloov ntau yam. ; lwm qhov yog qhov ntsuas qhov zoo. , qhia txog qhov zoo thiab qhov tsis zoo ntawm DC tswj fais fab mov, suav nrog kev ruaj ntseg, sib npaug sab hauv tsis kam (tso tawm tsis kam), ripple voltage thiab kub coefficient.
1. Cov yam ntxwv ntsuas
(1) Cov zis voltage ntau
Cov zis hluav taws xob ntau yam uas tuaj yeem ua haujlwm ib txwm nyob hauv kev ua haujlwm ntawm DC tswj fais fab mov. Qhov txwv sab saud ntawm qhov taw qhia yog teev los ntawm qhov siab tshaj plaws input voltage thiab qhov tsawg kawg nkaus input- tawm qhov hluav taws xob sib txawv, thaum qhov kev txwv qis yog txiav txim siab los ntawm tus nqi siv hluav taws xob sab hauv ntawm DC tswj fais fab mov.
(2) Cov tswv yim siab tshaj plaws - tawm qhov hluav taws xob sib txawv
Qhov ntsuas no sawv cev rau qhov siab tshaj qhov sib txawv ntawm qhov sib txawv ntawm cov tswv yim thiab cov zis raws li kev ua haujlwm ib txwm muaj ntawm DC stabilized fais fab mov, thiab nws cov nqi feem ntau yog nyob ntawm qhov ntsuas qhov ntsuas hluav taws xob ntawm qhov hloov pauv sab hauv ntawm DC stabilized fais fab mov.
(3) Yam tsawg kawg nkaus input- tawm qhov voltage sib txawv
Qhov taw qhia no qhia txog qhov tsawg kawg nkaus input- cov zis voltage qhov sib txawv uas yuav tsum tau ua kom ntseeg tau tias cov kev ua haujlwm ib txwm muaj ntawm DC tswj fais fab mov.
(4) Tso zis load tam sim no ntau yam
Cov zis load tam sim no ntau kuj hu ua qhov tso zis tam sim no ntau yam. Nyob rau hauv qhov tam sim no ntau yam, DC tswj fais fab mov yuav tsum muaj peev xwm ua tau raws li qhov ntsuas tau muab los ntawm qhov ntsuas ntsuas.
2. Cov ntsuas zoo
(1) Voltage tswj tus nqi SV
Kev tswj hwm qhov hluav taws xob yog ib qho tseem ceeb qhia txog qhov ua tau zoo ntawm qhov kev tswj xyuas hluav taws xob ntawm DC tswj fais fab mov. Nws tseem hu ua voltage regulation coefficient lossis stability coefficient. Nws sawv cev rau qib ntawm kev ruaj ntseg ntawm cov zis voltage VO ntawm DC tswj fais fab mov thaum lub input voltage VI hloov. Qhia tawm raws li feem pua ntawm cov txheeb ze hloov pauv nyob rau hauv cov tswv yim thiab cov zis voltages ntawm ib chav tsev ntawm cov zis voltage.
(2) Kev cai tam sim no tus nqi SI
Cov kev cai tam sim no yog ib qho tseem ceeb ntawm tus kheej - Performance index qhia txog lub peev xwm thauj khoom ntawm DC tswj fais fab mov, tseem hu ua qhov kev ruaj ntseg coefficient tam sim no. Nws characterizes lub peev xwm ntawm DC tswj fais fab mov los txwv qhov hloov pauv ntawm cov zis hluav taws xob los ntawm kev hloov pauv ntawm cov khoom tam sim no (tsim tawm tam sim no) thaum lub zog nkag mus tas li. Qhov feem pua ntawm cov zis hluav taws xob hloov pauv tus nqi sawv cev rau cov kev cai tam sim no ntawm DC tswj fais fab mov.
(3) Ripple rejection ratio SR
Lub ripple rejection piv qhia txog lub peev xwm ntawm DC tswj fais fab mov los suppress lub mains voltage qhia ntawm lub input davhlau ya nyob twg. Thaum cov kev tawm tswv yim thiab cov zis ntawm DC tswj fais fab mov tseem tsis hloov pauv, qhov kev tsis lees paub qhov sib piv feem ntau yog txiav txim siab los ntawm qhov siab tshaj - rau - tus nqi siab tshaj ntawm qhov input ripple voltage. Lub ncov - mus rau -peak piv ntawm cov zis ripple voltage feem ntau qhia hauv decibels, tab sis qee zaum nws kuj tuaj yeem qhia tau tias yog feem pua, lossis qhia ncaj qha raws li qhov piv ntawm ob.
(4) Kub stability K
Qhov kub thiab txias ntawm kev sib xyaw DC tswj fais fab mov yog qhov feem pua tus nqi ntawm cov txheeb ze hloov pauv ntawm cov zis hluav taws xob ntawm DC tswj fais fab mov hauv qhov teev ntau qhov sib txawv ntawm qhov kev ua haujlwm kub Ti ntawm DC tswj fais fab mov (Tmin Tsawg dua lossis sib npaug Ti Less dua lossis sib npaug rau Tmax).
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