Technical specifications ntawm DC fais fab mov
Cov kev qhia ntawm DC fais fab mov muab faib ua ob hom: ib qho yog cov yam ntxwv ntsuas, suav nrog kev tso cai nkag voltage, tso zis voltage, tso zis tam sim no, thiab cov zis voltage tswj ntau yam, thiab lwm yam; Lwm hom yog cov cim qhia tau zoo, uas yog siv los ntsuas qhov ruaj khov ntawm qhov tso zis DC voltage, suav nrog voltage stabilization coefficient (los yog voltage regulation rate), tso zis tsis kam (los yog kev cai tam sim no), ripple voltage (ib puag ncig thiab random drift), thiab kub. coefficient.
(1) Ripple voltage: AC voltage tivthaiv superimposed ntawm cov zis voltage. Kev soj ntsuam nws qhov ncov mus rau qhov siab tshaj plaws nrog oscilloscope feem ntau yog nyob rau hauv millivolt ntau. Ib qho AC millivolt meter kuj tuaj yeem siv los ntsuas nws cov txiaj ntsig zoo, tab sis vim tias qhov ripple tsis yog sine yoj, muaj qee qhov yuam kev. Feem ntau, ripple voltage Vp-p ntawm DC fais fab mov yog tsawg dua lossis sib npaug li 10mV.
(2) Voltage stabilization coefficient: Nyob rau hauv cov xwm txheej ntawm qhov tsis tu ncua load tam sim no thiab ambient kub, tus txheeb ze hloov ntawm input voltage ua rau tus txheeb ze hloov ntawm cov zis voltage, uas yog:
(3) Kev tswj hwm tus nqi hluav taws xob: Tus txheeb ze hloov pauv hauv qhov tso zis hluav taws xob thaum lub tswv yim voltage hloov los ntawm ± 10%. Cov kev cai voltage coefficient thiab voltage tswj tus nqi ob leeg qhia txog qhov cuam tshuam ntawm input voltage hloov ntawm cov zis voltage, yog li tsuas yog ib qho ntawm lawv yuav tsum tau kuaj.
(4) Cov zis tsis kam thiab cov kev cai tam sim no: Cov zis tsis kam yog tib yam li cov zis tawm ntawm lub tshuab hluav taws xob, thiab nws tus nqi yog tus nqi kiag li ntawm qhov piv ntawm cov zis hluav taws xob hloov mus rau qhov tso zis tam sim no hloov thaum lub input voltage tseem tsis hloov. Cov kev cai tam sim no: Cov txheeb ze hloov pauv hauv cov zis hluav taws xob tsim tawm thaum cov zis tam sim no hloov ntawm 0 mus rau qhov siab tshaj plaws. Cov zis tsis kam thiab cov kev cai tam sim no ob leeg qhia txog qhov cuam tshuam ntawm kev hloov pauv tam sim no ntawm cov zis hluav taws xob, yog li tsuas yog ib qho ntawm lawv yuav tsum tau sim.
