Muaj ob lub ntsiab ntawm cov rectifiers uas siv rau hauv kev tswj fais fab: tsis tswj thiab tswj rectifiers. Rectifiers muaj nyob rau hauv ntau daim ntawv thov, suav nrog cov khoom siv hluav taws xob, khoos phis tawj, roj teeb them, thiab cov tshuab hluav taws xob hauv tsheb. Los ntawm kev siv lub rectifier los hloov AC rau DC, kev tswj fais fab tuaj yeem txhim kho nrog kev tswj ntau dua ntawm cov zis tam sim no thiab qhov hluav taws xob. Qhov no ua rau lub rectifier yog qhov tseem ceeb rau kev tswj hwm lub zog hauv ntau yam kev lag luam.
1. Kev tswj cov rectifiers siv cov transistors los tswj cov tswv yim AC waveform thiab muab qib siab ntawm kev tswj xyuas tam sim no, ua rau lawv zoo tagnrho rau kev siv hluav taws xob siab. Thaum kawg, lub rectifier yog ib qho cuab yeej uas ua lub luag haujlwm tseem ceeb hauv cov txheej txheem ntawm kev hloov AC zog rau DC lub zog. Tswj rectifiers yog tshwj xeeb tshaj yog pab tau, raws li lawv muab ntau dua kev tswj ntawm tam sim no ntws.
2. Lub input tsis tswj rectifier yog rectified siv diodes. Raws li ib tug unidirectional ntaus ntawv, no diode tsuas tso cai rau ib qho kev taw qhia ntawm hluav taws xob txaus. Lub diode configuration ntawm lub rectifier tiv thaiv lub hwj chim los ntawm fluctuating nyob ntawm load xav tau. Cov pawg hauv qab no ntxiv cais cov tsis tswj hwm rectifiers:
Ib nrab-yoj Rectifier
Full-wave Rectifier
Tsuas yog thawj ib nrab ntawm lub voj voog hloov pauv tam sim no tau hloov mus rau qhov tam sim no ncaj qha siv ib nrab-yoj rectifier. Ntawm qhov tod tes, tag nrho-yoj rectifier hloov pauv qhov zoo thiab qhov tsis zoo ib nrab ntawm AC. Ib qho piv txwv ntawm qhov no yog tus choj rectifier. Nws yog tsim los ntawm plaub diodes koom ua ke nyob rau hauv ib tug Wheatstone choj. Los ntawm kev xaiv qhov zoo ntawm rectifier rau lub hom phiaj tshwj xeeb, nws muaj peev xwm tswj hwm lub zog tawm tswv yim thiab cov zis tau yooj yim.