Los ntawm cov ntsiab lus ntawm daim ntawv thov kev pom zoo, UPS yog lub zog tiv thaiv cov cuab yeej uas muaj lub zog cia, nrog lub inverter ua nws cov khoom tseem ceeb, muab qhov hluav taws xob ruaj khov thiab tso zis ntau zaus. Nws tsuas yog muaj lub rectifier, roj teeb, inverter, thiab zoo li qub hloov.
1) Rectifier: Lub rectifier yog ib qho khoom siv uas hloov pauv tam sim no (AC) mus rau tam sim no (DC). Nws muaj ob lub luag haujlwm tseem ceeb: ua ntej, hloov AC rau DC, uas tom qab ntawd lim thiab nkag mus rau lub nra lossis lub inverter; thib ob, muab kev them nqi hluav taws xob rau lub roj teeb. Yog li ntawd, nws kuj ua haujlwm raws li lub charger.
2) Roj teeb: Lub roj teeb yog siv los ntawm UPS los khaws cov hluav taws xob hluav taws xob. Nws muaj ntau lub roj teeb txuas nrog hauv cov koob, thiab nws lub peev xwm txiav txim siab lub sijhawm ntawm kev tso tawm (lub hwj chim mov). Nws lub luag haujlwm tseem ceeb yog: 1. Thaum lub zog hluav taws xob zoo li qub, hloov hluav taws xob hluav taws xob mus rau hauv cov khoom siv hluav taws xob thiab khaws cia rau hauv lub roj teeb . 2. Thaum lub zog hluav taws xob tsis ua haujlwm, lub zog hluav taws xob tau hloov mus rau hauv hluav taws xob hluav taws xob los muab lub zog inverter lossis load;
3) Inverter: Ib qho inverter yog ib qho khoom siv uas hloov tam sim no ncaj qha (DC) mus rau qhov hloov pauv tam sim no (AC). Nws muaj ib tug inverter choj, tswj logic, thiab lim circuits;
4) Static hloov: Ib qho hloov pauv zoo li qub, tseem hu ua qhov hloov chaw ruaj khov, yog qhov hloov pauv tsis sib cuag. Nws yog ib qho AC hloov uas muaj ob lub silicon tswj rectifiers (SCRs) txuas nrog rov qab ua ke. Nws kaw thiab qhib yog tswj los ntawm ib tug logic maub los. Nws muaj ob hom: hloov hom thiab hom parallel. Hloov hom hloov pauv feem ntau yog siv rau hauv cov tshuab siv los ntawm ob lub zog hluav taws xob, thiab lawv txoj haujlwm yog ua kom tsis siv neeg hloov pauv ntawm ib lub zog mus rau lwm qhov; Parallel hom keyboards feem ntau yog siv los txuas inverters nyob rau hauv parallel nrog lub mains fais fab los yog ntau inverters.
