iindaba

 Flybackunikezelo lombane lokutshintsha i-transformerkuthetha ukuba xa i-coil ephambili ye-transformer ivuyiswa yi-DC pulse voltage, i-coil yesibini ye-transformer ayiboneleli amandla ombane kumthwalo, kodwa emva kokuba i-voltage yokuvuselela i-coil yokuqala ye-transformer icinyiwe.Ukubonelela ngemveliso yamandla, olu hlobo lwesiguquli sokutshintsha unikezelo lwamandla lubizwa ngokuba yi-flyback switching power supply.

Umgaqo osebenzayo we-flyback power switch: iindlela eziqhubekayo kunye neziyekayo ze-flybackukunikezwa Amandlabhekisa kwimeko yokusebenza ye-transformer.Kwimeko elayishwe ngokupheleleyo, i-transformer isebenza kwimodi yokusebenza apho amandla adluliswa ngokupheleleyo okanye angadluliswanga ngokupheleleyo.Ngokuqhelekileyo, uyilo kufuneka lusekelwe kwindawo yokusebenza.Izixhobo zombane eziqhelekileyo ze-flyback kufuneka zisebenze kwimodi eqhubekayo, ukwenzela ukuba i-tube yokutshintsha kunye nelahleko zesekethe zincinci, kwaye uxinzelelo olusebenzayo lwe-input and output capacitors lungancitshiswa, kodwa kukho ezinye izinto.Kufuneka icaciswe apha: ngenxa yeempawu zombane we-flyback, iphinda ifaneleke ngakumbi ukuyilwa njengombane ophezulu we-voltage, kunye ne-high-voltage power supply transformer ngokubanzi isebenza kwimodi yokuyeka.Ndiyaqonda ukuba imveliso yamandla ombane aphezulu ifuna ukusetyenziswa kweediode zokuhlaziya amandla ombane aphezulu.Ngenxa yeempawu zenkqubo yokuvelisa, iidiode zombane eziphezulu ezibuyela umva zinexesha elide lokubuyisela umva kunye nesantya esiphantsi.Kwimeko eqhubekayo yangoku, i-diode ibuyisela kwakhona xa kukho i-bias phambili.Ukulahlekelwa kwamandla ngexesha lokubuyisela umva kukhulu kakhulu, okungahambi kakuhle ekusebenzeni komguquli.Ukuphuculwa kwetyhubhu yokulungisa kuya kunciphisa ukusebenza kakuhle kokuguqulwa, ukutshisa kakhulu ityhubhu yokulungisa kunye nokutshisa ityhubhu yokulungisa.Ekubeni kwimodi yokuyeka, i-diode i-reverse-biased phantsi kwe-bias ye-zero, ilahleko inokuncitshiswa ukuya kwinqanaba eliphantsi.Ngoko ke, ukunikezelwa kwamandla ombane aphezulu kusebenza kwimodi yokuyeka, kwaye i-frequency yokusebenza ayinakuba phezulu kakhulu.Kukho kwakhona uhlobo lonikezelo lwamandla e-flyback olusebenza kwimeko enzima.Ngokubanzi, olu hlobo lonikezelo lwamandla lusebenza kwimowudi yokumodareyitha rhoqo okanye imowudi yokumodareyitha kabini kunye nobubanzi.Amanye amaxabiso aphantsi anika amandla okuzihlaziya (rcc) ahlala esebenzisa le fomu.Ukuze kuqinisekiswe imveliso ezinzileyo, ii-transformers I-frequency yokusebenza itshintsha ngokuphuma kwangoku okanye i-voltage input.I-transformer ihlala ihleli phakathi kokuqhubekayo kunye nekhefu xa isondele kumthwalo opheleleyo.Olu hlobo lonikezelo lwamandla lufanelekile kuphela kwimveliso yamandla aphantsi, kungenjalo iimpawu zokuhambelana kombane ziya kuba yingxaki kakhulu.