Umahluko oPhambili kunye nezicelo
IiRectifiers zizinto ezibalulekileyo kwiisekethe ezahlukeneyo ze-elektroniki kunye neenkqubo zokubonelela ngombane. Ziguqula i-alternating current (AC) ibe yi-direct current (DC), zibonelela ngamandla afunekayo kwizixhobo ezininzi kunye nezicelo. Phakathi kweentlobo ezahlukeneyo zeerectifiers, ii-pulse rectifiers kunye nee-polarity reverse rectifiers ziphawuleka ngeempawu zazo ezizodwa kunye nezicelo. Eli nqaku lijonga umahluko phakathi kwezi ntlobo zimbini zeerectifiers, imigaqo yazo yokusebenza, iingenelo, iingxaki, kunye nezicelo.
Izihluzi zePulse
Ii-rectifiers ze-pulse, ezaziwa ngokuba zii-pulsed rectifiers okanye ii-rectifiers ezilawulwayo, zizixhobo eziguqula i-AC ibe yi-DC ngokusebenzisa izixhobo ze-semiconductor ezilawulwayo ezifana ne-thyristors okanye ii-rectifiers ezilawulwa yi-silicon (ii-SCR). Ezi rectifiers zihlala zisetyenziswa kwizicelo ezifuna ulawulo oluchanekileyo kwi-voltage yokukhupha kunye nomsinga.
Umgaqo Wokusebenza
Ukusebenza kwe-pulse rectifier kubandakanya ukulawula i-phase angle ye-input AC voltage. Ngokulungisa i-triggering angle yee-SCR, i-output DC voltage inokulawulwa. Xa i-SCR ivuselelwa, ivumela i-current ukuba idlule ide ifikelele kwi-zero, apho i-SCR icima khona. Le nkqubo iphinda-phinda kwisiqingatha somjikelo ngamnye we-AC input, ivelise i-pulsating DC output.
Iingenelo
Ulawulo Oluchanekileyo: Ii-rectifiers ze-pulse zibonelela ngolawulo oluhle kakhulu kwi-voltage yokuphuma kunye nomsinga, nto leyo ezenza zibe zilungele usetyenziso olufuna i-DC output ehlengahlengiswayo.
Ukusebenza kakuhle: Ezi zilungisi zisebenza kakuhle kakhulu, njengoko zinciphisa ukulahleka kwamandla ngexesha lokuguqulwa.
Ukuguquguquka: Izixhobo zokulungisa iipulse zinokusingatha imithwalo eyahlukeneyo kwaye zifanelekile kwiintlobo ezahlukeneyo ze-AC inputs.
Iingxaki
Ubunzima: Ukujikeleza kwee-rectifiers ze-pulse kuyinkimbinkimbi ngakumbi kunezo ze-rectifiers ezilula, ezifuna ezinye izinto zokuqalisa nokulawula.
Ixabiso: Ngenxa yokusetyenziswa kwezixhobo ze-semiconductor ezilawulwayo kunye neesekethe zolawulo ezongezelelweyo, ii-pulse rectifiers zihlala zibiza kakhulu.
Izicelo
Izixhobo zokulungisa iipulse zisetyenziswa kakhulu kwizicelo zoshishino, kuquka:
1.IiDrive zesantya eziguquguqukayo: Ukulawula isantya seemoto ze-AC.
2.Izixhobo zoMbane: Kwizixhobo zombane ezilawulwayo zezixhobo ze-elektroniki.
3.Ukuwelda: Kwizixhobo zokuwelda apho ulawulo oluchanekileyo lomsinga wokuphuma lubalulekile.
4.Uthumelo lwe-HVDC: Kwiinkqubo zothumelo lwamandla achanekileyo aphezulu (i-HVDC) ukuze kube lula ukusebenza
IiRectifiers zePolarity Reverse
Ii-rectifiers ze-Polarity reverse, ezaziwa ngokuba zii-rectifiers ze-reverse polarity protection okanye ii-rectifiers ze-reverse voltage protection, zenzelwe ukukhusela iisekethe kumonakalo obangelwa kuqhagamshelo olungalunganga lwe-polarity. Ziqinisekisa ukuba isekethe isebenza ngokuchanekileyo nokuba i-polarity yombane irhoxisiwe.
Umgaqo Wokusebenza
Inxalenye ephambili ye-polarity reverse rectifier yi-diode okanye indibaniselwano yee-diode. Xa iqhagamshelwe kuthotho kunye nombane, i-diode ivumela i-current ukuba ihambe kwicala elichanekileyo kuphela. Ukuba i-polarity ijikwa, i-diode ivimba i-current, ithintela ukonakala kwesekethe.
Kwimiyilo ephucukileyo, iiMOSFET (ii-transistors ze-metal-oxide-semiconductor field-effect) zisetyenziselwa ukubonelela nge-low forward voltage drop kunye nokusebenza kakuhle xa kuthelekiswa neediode. Ezi rectifiers ezisekelwe kwiMOSFET zilungelelanisa ngokuzenzekelayo kwi-polarity echanekileyo kwaye ziqinisekisa ukusebenza ngokufanelekileyo kwesekethe.
Iingenelo
Ukhuseleko lweSekethe: Ii-rectifiers ze-Polarity reverse zikhusela ngokufanelekileyo izinto ze-elektroniki ezibuthathaka ekonakaleni ngenxa yoqhagamshelo olungalunganga lwe-polarity.
Ukulula: Uyilo lulula kwaye lunokudityaniswa lula kwiisekethe ezikhoyo.
Ixabiso Eliphantsi: Ii-rectifiers ze-polarity reverse ezisekelwe kwi-diode azibizi kakhulu kwaye zifumaneka lula.
Iingxaki
Ukuhla kweVoltage: Ii-rectifiers ezisekwe kwi-diode zizisa ukuhla kwe-voltage phambili, okunokunciphisa ukusebenza kakuhle kwesekethe iyonke.
Ulawulo Olulinganiselweyo: Ezi zilungisi aziboneleli ngolawulo kwi-voltage yokuphuma okanye i-current, njengoko umsebenzi wazo oyintloko kukukhusela.
Izicelo
Ii-rectifiers ze-Polarity reverse zisetyenziswa kwiindlela ezahlukeneyo apho ukhuseleko kwi-reverse polarity lubalulekile, kuquka:
1.Izixhobo ze-elektroniki zabathengi: Kwizixhobo ezinje ngee-smartphones, ii-laptops, kunye nezinye izixhobo ze-elektroniki eziphathwayo ukuthintela umonakalo ovela kuqhagamshelo olungalunganga lombane.
2.Iimoto: Kwizixhobo ze-elektroniki zemoto ukukhusela iisekethe kwiintambo zebhetri ezibuyela umva.
3.Iinkqubo zamandla elanga: Ukuqinisekisa ukusebenza kakuhle kweephaneli zelanga nokuthintela umonakalo ovela kwi-polarity engasemva.
4.Iitshaja zebhetri: Ukukhusela iisekethe zokutshaja kwiintambo zebhetri ezingachanekanga.
Umahluko oPhambili
Umahluko oPhambili
Nangona zombini ii-rectifiers ze-pulse kunye nee-rectifiers ze-polarity reverse zidlala indima ebalulekileyo kwiinkqubo ze-elektroniki, imisebenzi yazo kunye nokusetyenziswa kwazo kwahlukile kakhulu.
Umsebenzi: Ii-rectifiers ze-pulse zigxila ekuguquleni i-AC ibe yi-DC ngolawulo oluchanekileyo kwimveliso, ngelixa ii-rectifiers ze-polarity reverse zenzelwe ukukhusela iisekethe ekonakalisweni ngenxa yoqhagamshelo olungalunganga lwe-polarity.
Izinto ezisetyenziswayo: Ii-rectifiers ze-pulse zisebenzisa izixhobo ze-semiconductor ezilawulwayo ezifana nee-SCR, ngelixa ii-rectifiers ze-polarity reverse zihlala zisebenzisa ii-diodes okanye ii-MOSFET.
Ubunzima: Ii-rectifiers ze-pulse ziyinkimbinkimbi ngakumbi kwaye zifuna i-control circuitry eyongezelelweyo, ngelixa ii-rectifiers ze-polarity reverse zinoyilo olulula.
Izicelo: Ii-rectifiers ze-pulse zisetyenziswa kwizicelo zoshishino kunye nezamandla aphezulu, ngelixa ii-rectifiers ze-polarity reverse zifumaneka rhoqo kwi-electronics zabathengi, kwiimoto, nakwiinkqubo zamandla elanga.
Isiphelo
Ii-rectifiers ze-pulse kunye nee-rectifiers ze-polarity reverse zizinto ezibalulekileyo kwiinkqubo ze-elektroniki zanamhlanje, nganye isebenzela iinjongo ezahlukeneyo. Ii-rectifiers ze-pulse zibonelela ngolawulo oluchanekileyo kunye nokusebenza kakuhle ekuguquleni i-AC ukuya kwi-DC, okwenza zifaneleke kwizicelo zoshishino. Ngokwahlukileyo koko, ii-rectifiers ze-polarity reverse zibonelela ngokhuseleko olubalulekileyo kuqhagamshelo olungalunganga lwe-polarity, ziqinisekisa ukhuseleko kunye nokuthembeka kwezixhobo ezahlukeneyo ze-elektroniki kunye neenkqubo. Ukuqonda umahluko phakathi kwezi rectifiers kunceda ekukhetheni icandelo elifanelekileyo kwizicelo ezithile, ekugqibeleni kuphucula ukusebenza kunye nobude bexesha leesekethe ze-elektroniki.
Ixesha leposi: Julayi-03-2024
