Umehluko Obalulekile kanye Nezicelo
Ama-rectifiers ayingxenye ebalulekile kumasekethe e-elekthronikhi ahlukahlukene kanye nezinhlelo zokuphakela amandla. Baguqula i-alternating current (AC) iye ku-direct current (DC), banikeze amandla adingekayo kumadivayisi amaningi nezinhlelo zokusebenza. Phakathi kwezinhlobo ezihlukene zezilungisi, izilungisi ze-pulse rectifiers ne-polarity reverse rectifiers ziphawuleka ngezici zazo ezihlukile kanye nezinhlelo zokusebenza. Lesi sihloko sidingida umehluko phakathi kwalezi zinhlobo ezimbili zezilungisi, izimiso zazo zokusebenza, izinzuzo, ukonakala, kanye nezinhlelo zokusebenza.
Ama-Pulse Rectifiers
Ama-Pulse rectifiers, awaziwa nangokuthi ama-pulsed rectifiers noma izilungisi ezilawulwayo, angamadivayisi aguqulela i-AC kuya ku-DC ngokusebenzisa amadivayisi alawulwayo we-semiconductor afana nama-thyristors noma ama-silicon-controlled rectifiers (SCRs). Lezi zilungisi zivame ukusetshenziswa ezinhlelweni ezidinga ukulawula okunembile phezu kwe-voltage ephumayo kanye neyamanje.
Isimiso Sokusebenza
Ukusebenza kwe-pulse rectifier kufaka phakathi ukulawula i-engeli yesigaba ye-voltage ye-AC yokufaka. Ngokulungisa i-angle yokuqalisa yama-SCR, i-voltage ye-DC ephumayo ingalawulwa. Uma i-SCR icushiwe, ivumela okwamanje ukuthi idlule kuze kube yilapho umjikelezo we-AC ufinyelela ku-zero, lapho i-SCR ivala khona. Le nqubo iphinda uhafu womjikelezo wokokufaka kwe-AC, ikhiqiza okukhiphayo kwe-DC.
Izinzuzo
Ukulawula Okunembile: Ama-Pulse rectifiers ahlinzeka ngokulawula okuhle kakhulu ku-voltage ephumayo kanye neyamanje, okuzenza zilungele izinhlelo zokusebenza ezidinga ukuphuma kwe-DC okulungiswayo.
Ukusebenza Okuphezulu: Lezi zilungisi zisebenza kahle kakhulu, njengoba zinciphisa ukulahleka kwamandla ngesikhathi sokuguqulwa.
Ukuvumelana nezimo: Izilungisi ze-Pulse zingakwazi ukuphatha imithwalo ehlukahlukene futhi zifanele izinhlobo ezahlukene zokufakwayo kwe-AC.
Ukubi
Ubunkimbinkimbi: Isekhethi ye-pulse rectifiers iyinkimbinkimbi kakhulu kunaleyo yezilungisi ezilula, ezidinga izingxenye ezengeziwe zokucupha nokulawula.
Izindleko: Ngenxa yokusetshenziswa kwamadivayisi alawulwayo we-semiconductor namasekhethi okulawula engeziwe, izilungisi ze-pulse ngokuvamile zibiza kakhulu.
Izinhlelo zokusebenza
Ama-Pulse rectifiers asetshenziswa kabanzi ezinhlelweni zezimboni, kufaka phakathi:
1.Amadrayivu Esivinini Aguquguqukayo: Okokulawula isivinini samamotho e-AC.
2.Ukunikezwa kwamandla: Kumandla kagesi alawulwayo wezinto zikagesi.
3.I-Welding: Emishini yokushisela lapho ukulawulwa okunembile kokuphumayo kubalulekile.
4.Ukudluliswa kwe-HVDC: Kumasistimu okudlulisela i-high-voltage direct current (HVDC) ukuze asebenze kahle
I-polarity Reverse Rectifiers
Izilungisi ze-polarity reverse, ezaziwa nangokuthi izilungisi zokuvikela i-polarity reverse noma izilungisi zokuvikela i-voltage ehlehlayo, ziklanyelwe ukuvikela amasekhethi emonakalweni odalwe ukuxhumana okungalungile kwe-polarity. Baqinisekisa ukuthi isifunda sisebenza ngendlela efanele noma ngabe i-polarity yokunikezwa kwamandla ihlehlisiwe.
Isimiso Sokusebenza
Ingxenye eyinhloko ye-polarity reverse rectifier i-diode noma inhlanganisela yama-diode. Uma ixhunywe ochungechungeni ngokunikezwa kwamandla, i-diode ivumela okwamanje ukuthi kugeleze ngendlela efanele kuphela. Uma i-polarity iguqulwa, i-diode ivimbela okwamanje, ivimbele ukulimala kumjikelezo.
Emiklamo ethuthuke kakhulu, ama-MOSFET (ama-metal-oxide-semiconductor field-effect transistors) asetshenziselwa ukuhlinzeka ngokwehla kwamandla kagesi ahamba phambili aphansi nokusebenza kahle okuphezulu uma kuqhathaniswa nama-diode. Lezi zilungisi ezisekelwe ku-MOSFET zilungisa ngokuzenzakalelayo ku-polarity efanele futhi ziqinisekise ukusebenza kahle kwesekethe.
Izinzuzo
Ukuvikelwa Kwesekethe: Izilungisi ze-polarity reverse zivikela ngempumelelo izingxenye ze-elekthronikhi ekulimaleni ngenxa yokuxhumeka okungalungile kwe-polarity.
Ubulula: Umklamo ulula futhi ungahlanganiswa kalula kumasekethe akhona.
Izindleko: Izilungisi ze-polarity reverse ezisuselwa ku-Diode azibizi futhi zitholakala kalula.
Ukubi
I-Voltage Drop: I-Diode-based rectifiers yethula ukwehla kwe-voltage eya phambili, okunganciphisa ukusebenza kahle kukonke kwesekethe.
Ukulawula Okunomkhawulo: Lezi zilungisi azinikezi ukulawula phezu kwe-voltage ephumayo noma yamanje, njengoba umsebenzi wazo oyinhloko uwukuvikela.
Izinhlelo zokusebenza
I-polarity reverse rectifiers isetshenziswa kuzinhlelo zokusebenza ezahlukahlukene lapho ukuvikela ngokumelene ne-polarity ehlehlayo kubalulekile, okuhlanganisa:
1.I-Consumer Electronics: Kumadivayisi afana nama-smartphones, amakhompyutha aphathekayo, nezinye izinto zikagesi eziphathwayo ukuze kuvinjelwe umonakalo ovela ekuxhumekeni okungalungile kokuphakelwa kwamandla.
2.Ezezimoto: Kumishini kagesi yezimoto ukuvikela amasekhethi ekuxhumekeni kwebhethri ehlehlayo.
3.I-Solar Power Systems: Ukuqinisekisa ukusebenza kahle kwamaphaneli elanga nokuvikela umonakalo ovela ku-polarity ehlehlayo.
4.Amashaja Ebhethri: Ukuvikela amasekhethi ukushaja ekuxhumekeni kwebhethri okungalungile.
Umehluko Obalulekile
Umehluko Obalulekile
Nakuba kokubili izilungisi ze-pulse kanye ne-polarity reverse rectifiers zidlala indima ebalulekile kumasistimu kagesi, imisebenzi yazo nezinhlelo zokusebenza kwehluka kakhulu.
Umsebenzi: Izilungisi ze-Pulse zigxila ekuguquleni i-AC ibe yi-DC ngokulawula okunembile kokuphumayo, kuyilapho izilungisi ezihlehlayo ze-polarity zakhelwe ukuvikela amasekhethi emonakalweni ngenxa yokuxhumeka okungalungile kwe-polarity.
Izingxenye: Ama-Pulse rectifiers asebenzisa amadivayisi alawulwayo we-semiconductor njengama-SCR, kuyilapho izilungisi zokuhlehlisa i-polarity ngokuvamile zisebenzisa ama-diode noma ama-MOSFET.
Ubunkimbinkimbi: Izilungisi ze-Pulse ziyinkimbinkimbi kakhulu futhi zidinga ukujikeleza kokulawula okwengeziwe, kuyilapho izilungisi ezihlehlayo ze-polarity zinedizayini elula.
Izinhlelo zokusebenza: Izilungisi ze-Pulse rectifier zisetshenziswa ezimbonini nakuzinhlelo zokusebenza zamandla aphezulu, kuyilapho izilungisi ezihlehlayo ze-polarity zivame ukutholakala kuma-electronics abathengi, izimoto, kanye namasistimu kagesi welanga.
Isiphetho
Izilungisi ze-Pulse ne-polarity reverse rectifiers ziyizingxenye ezibalulekile ezinhlelweni zesimanje ze-elekthronikhi, ngayinye isebenzela izinjongo ezihlukile. Izilungisi ze-Pulse zinikeza ukulawula okunembayo nokusebenza kahle ekuguquleni kwe-AC kuya ku-DC, okuzenza zifanelekele izinhlelo zokusebenza zezimboni. Ngokuphambene, izilungisi ze-polarity reverse zihlinzeka ngokuvikeleka okubalulekile ekuxhumekeni kwe-polarity okungalungile, okuqinisekisa ukuphepha nokuthembeka kwemishini ehlukahlukene kagesi namasistimu. Ukuqonda umehluko phakathi kwalezi zilungisi kusiza ekukhetheni ingxenye elungile yezinhlelo zokusebenza ezithile, ekugcineni kuthuthukise ukusebenza nokuphila isikhathi eside kwamasekhethi kagesi.
Isikhathi sokuthumela: Jul-03-2024
