Rectifier (Lus Askiv: rectifier) yog ib qho khoom siv uas hloov pauv tam sim no mus rau qhov tam sim no ncaj qha. Nws tuaj yeem siv rau cov khoom siv hluav taws xob thiab xov tooj cua teeb liab nrhiav pom. Lub rectifier tuaj yeem ua los ntawm lub tshuab nqus tsev, pilot tube, cov khoom siv silicon semiconductor diode, mercury arc, thiab lwm yam. Ntawm qhov tsis sib xws, ib qho khoom siv uas hloov tam sim no ncaj qha rau hauv alternating tam sim no hu ua "inverter".
Nyob rau hauv lub standby UPS, tsuas yog lub roj teeb yuav tsum tau them, thiab lub load tsis tas yuav tsum tau muab lub hwj chim, yog li ntawd tsuas muaj ib tug charger. Hauv ob chav hloov dua siab tshiab UPS, cov cuab yeej no tsis tsuas yog muab lub zog rau lub inverter xwb, tab sis kuj them lub roj teeb, yog li nws yog hu ua rectifier / charger.
Lub rectifier yog ib qho khoom siv rectifier, tsuas yog muab tso rau nws yog ib qho khoom siv uas hloov pauv tam sim no (AC) mus rau tam sim no ncaj qha (DC). Nws muaj ob lub luag haujlwm tseem ceeb: ua ntej, nws hloov pauv tam sim no (AC) mus rau qhov tam sim no ncaj qha (DC), uas yog lim thiab xa mus rau lub thauj khoom lossis rau lub inverter; thib ob, nws muab kev them nqi hluav taws xob rau lub roj teeb. Yog li ntawd, nws kuj ua raws li lub charger tib lub sijhawm.
