Lub hauv paus ntsiab lus ua haujlwm thiab kev faib tawm ntawm cov khoom siv hluav taws xob linear
Cov khoom siv hluav taws xob linear yog cov khoom siv hluav taws xob uas hloov pauv tam sim no mus rau qhov tam sim no ruaj khov. Nws txoj hauv kev ua haujlwm tseem ceeb yog siv lub tshuab hloov pauv kom txo qis AC voltage thiab kho nws mus rau DC lub zog, thiab tom qab ntawd ua kom lub zog DC ruaj khov ntawm qhov yuav tsum tau muaj qhov voltage los ntawm qhov voltage stabilizing circuit.
Tshwj xeeb, lub hauv paus ntsiab lus ua haujlwm ntawm cov khoom siv hluav taws xob linear suav nrog cov kauj ruam hauv qab no:
Transformer voltage txo: Lub input AC zog yog txo los ntawm ib tug transformer, feem ntau yog siv ib tug loj inductance kauj thiab ib tug hlau core magnetic core kom txo tau cov input voltage mus rau theem uas xav tau.
Rectification: Hloov cov hluav taws xob AC txo mus rau hauv DC fais fab, feem ntau yog siv lub voj voog rectification, xws li ib-theem los yog peb-theem rectifier choj, los hloov AC teeb liab mus rau unidirectional DC teeb liab.
Filter: Lim ncaj qha tam sim no los ntawm cov khoom xws li cov khoom siv hluav taws xob kom tshem tawm cov khoom siv hluav taws xob hauv hluav taws xob ncaj qha thiab tau txais cov hluav taws xob ncaj qha tam sim no ruaj khov dua.
Kev tswj hluav taws xob: Siv cov khoom siv hluav taws xob tswj hluav taws xob xws li diodes, transistors, kev sib xyaw ua ke, thiab lwm yam los tswj cov hluav taws xob DC kom ruaj ntseg ntawm cov zis hluav taws xob.
Cov zis: tso zis ncaj qha ncaj qha mus rau lub cuab yeej uas yuav tsum tau siv.
Nws yuav tsum tau muab sau tseg tias cov zis voltage ntawm ib tug linear fais fab mov feem ntau muaj ib tug tej yam kev sib raug zoo nrog lub input voltage. Piv txwv li, qhov tso zis voltage yog sib npaug rau qhov input voltage rho tawm ib qho voltage poob, yog li nws yuav tsum tau kho thiab tsim raws li cov kev cai tshwj xeeb.
Cov peev txheej linear fais fab tuaj yeem muab faib ua ntau txoj hauv kev, thiab cov hauv qab no yog cov hauv qab no los faib cov peev txheej linear:
Raws li hom input fais fab mov, nws tuaj yeem muab faib ua AC input hom thiab DC input hom. AC input hom feem ntau xav tau ib qho kev hloov pauv sab nraud los hloov AC lub zog rau hauv qhov xav tau DC voltage. DC input hom tuaj yeem lees txais DC lub zog hluav taws xob ncaj qha.
Raws li cov yam ntxwv ntawm qhov tso zis voltage thiab tam sim no, nws tuaj yeem muab faib ua hom hluav taws xob tsis tu ncua thiab hom tam sim no tsis tu ncua. Cov zis hluav taws xob ntawm qhov hluav taws xob tsis tu ncua linear fais fab mov yog qhov ruaj khov, thiab cov zis tam sim no tuaj yeem hloov pauv raws li kev hloov pauv. Cov zis tam sim no ntawm qhov tsis tu ncua tam sim no linear fais fab mov yog ruaj khov, thiab cov zis voltage hloov nrog lub load.
Raws li txoj kev tswj hwm hluav taws xob, nws tuaj yeem muab faib ua hom kev tswj hluav taws xob zoo tib yam thiab qhib lub voj voog hluav taws xob tswj hom. Cov hluav taws xob hluav taws xob zoo tib yam siv cov lus tawm tswv yim los tswj cov zis hluav taws xob ruaj khov, yuav tsum siv cov khoom siv hluav taws xob xws li transistors, diodes, kev sib xyaw ua ke, thiab lwm yam. Lub voj voog hluav taws xob qhib hluav taws xob tsis muaj kev tawm tswv yim Circuit Court thiab feem ntau siv txoj hauv kev xws li potentiometers los kho qhov tso zis voltage. Cov zis voltage stability tsis zoo, tab sis tus nqi qis dua.
Raws li qib zog, nws tuaj yeem muab faib ua hom hluav taws xob qis thiab hom hluav taws xob siab. Cov qauv hluav taws xob tsawg feem ntau muaj lub zog tso zis tsawg thiab tsim nyog rau kev muab lub zog rau cov khoom siv hluav taws xob me me, xws li cov khoom siv hluav taws xob txawb, cov khoom siv suab, thiab lwm yam. Cov khoom siv hluav taws xob siab yog tsim rau cov khoom siv hluav taws xob loj, xws li cov khoom siv hluav taws xob. , robots, tshuab cuab yeej, thiab lwm yam.
Raws li daim ntawv thov teb, nws tuaj yeem muab faib ua hom dav dav thiab tshwj xeeb. Cov qauv universal yog tsim rau ntau yam khoom siv hluav taws xob, xws li khoos phis tawj, xov tooj ntawm tes, digital koob yees duab, thiab lwm yam. Cov qauv tshwj xeeb yog tsim rau cov haujlwm tshwj xeeb, xws li khoom siv kho mob, khoom siv tub rog, thiab lwm yam.
