Dab tsi yog qhov qhia tau zoo ntawm DC tswj fais fab mov?
Cov kev ntsuas kev ua tau zoo ntawm DC tswj fais fab mov qhia 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, thiab lwm yam.
(1) Voltage tswj tus nqi SV. Qhov kev tswj xyuas qhov hluav taws xob yog ib qho tseem ceeb ntawm qhov kev tswj xyuas hluav taws xob ua haujlwm ntawm DC tswj fais fab mov, tseem hu ua voltage regulation coefficient lossis stability coefficient. Nws qhia qhov degree uas qhov tso zis voltage VO ntawm DC tswj fais fab mov yog ruaj khov thaum lub input voltage V1 hloov. Nws feem ntau yog qhia raws li qhov feem pua ntawm cov txheeb ze hloov pauv ntawm cov tswv yim thiab cov zis voltages ib chav tso zis voltage.
(2) Cov kev cai tam sim no. Cov kev cai tam sim no yog qhov tseem ceeb ntawm tus kheej qhia txog qhov muaj peev xwm ntawm DC tswj fais fab mov, tseem hu ua qhov kev ruaj ntseg coefficient tam sim no. Nws sawv cev rau lub peev xwm ntawm DC stabilized fais fab mov los txwv cov zis voltage hloov pauv tshwm sim los ntawm kev hloov pauv ntawm cov khoom tam sim no (tsim tawm tam sim no) thaum lub zog nkag mus tas li. Raws li kev hloov pauv tam sim no, cov kev cai tam sim no ntawm DC ruaj khov fais fab mov feem ntau yog qhia raws li feem pua ntawm cov zis hluav taws xob hloov pauv tus nqi ntawm ib chav tsev tso zis voltage.
(3) Ripple suppression ratio Lub ripple suppression piv qhia txog lub peev xwm ntawm DC tswj fais fab mov los suppress lub input voltage. Thaum cov kev tawm tswv yim thiab cov zis ntawm DC tswj cov khoom siv hluav taws xob tseem tsis hloov pauv, ripple rejection ratio feem ntau yog qhia raws li qhov sib piv ntawm lub ncov-rau-peak tus nqi ntawm cov tswv yim ripple voltage rau lub ncov-rau-peak tus nqi ntawm cov zis ripple. hluav taws xob. Nws feem ntau yog qhia hauv decibels, tab sis qee zaum nws kuj tuaj yeem qhia tau tias feem pua. qhia los yog qhia ncaj qha raws li qhov piv ntawm ob.
(4) Kub stability. Qhov kub thiab txias ntawm kev sib xyaw DC ruaj khov fais fab mov yog tus txheeb ze hloov pauv feem pua ntawm cov zis hluav taws xob ntawm DC ruaj khov fais fab mov hauv qhov kev hloov pauv siab tshaj plaws ntawm DC ruaj khov fais fab mov ua haujlwm kub T1 (Tmin Tsawg dua lossis sib npaug rau T1 Tsawg dua. dua lossis sib npaug rau Tmax).
Yog li cas qhov kev txwv qhov ntsuas tau cuam tshuam? Cov kev txwv qhov ntsuas feem ntau yog tshwm sim hauv qhov siab tshaj plaws tso zis hluav taws xob lossis qhov tso zis siab tshaj plaws tam sim no ntawm DC tswj fais fab mov. Qhov siab tshaj plaws tso zis tam sim no tuaj yeem ua kom muaj kev nyab xeeb ntawm DC tswj fais fab mov. Qhov siab tshaj plaws input voltage, thiab qhov siab tshaj plaws tam sim no yog qhov tso zis ntau tshaj tam sim no tso cai rau kev tswj xyuas haujlwm.
