Iimpawu zeMveliso

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Izibonelelo ezongezelelweyo

I-amplifier sisixhobo esandisa amandla ombane okanye amandla omqondiso wegalelo.Iqukethe ityhubhu ye-elektroniki okanye i-transistor, i-transformer yamandla, kunye nezinye izinto zombane.Isetyenziswa kunxibelelwano, usasazo, irada, umabonwakude, ulawulo oluzenzekelayo kunye nezinye izixhobo.

Isixhobo esonyusa i-amplitude okanye amandla ophawu.Iyinxalenye ebalulekileyo yokwenziwa kwesignali kwisixhobo esizenzekelayo.Umsebenzi wokukhulisa i-amplifier uqondwa ngumqondiso wegalelo ukulawula amandla, kunye nokusetyenziswa kwamandla okufunekayo ekukhuliseni kunikezelwe ngamandla.Kwii-amplifiers zomgca, isiphumo kukuphindaphinda kunye nokwandiswa komqondiso wegalelo.Kwi-amplifiers engabonakaliyo, imveliso ngumsebenzi wesignali yegalelo.Ngokobungakanani bomzimba we-amplifier yokucwangcisa imiqondiso yahlulwe yaba ngumatshini we-amplifier, i-electromechanical amplifier, i-electronic amplifier, i-hydraulic amplifier kunye ne-pneumatic amplifier, phakathi kwayo eyona nto isetyenziswa kakhulu yi-electronic amplifier.Ngokusasazeka kweteknoloji ye-efflux (jonga i-efflux element), ukusetyenziswa kwe-hydraulic okanye i-pneumatic amplifiers kuye kwanda ngokuthe ngcembe.Ama-amplifiers ombane ahlulwe abe yi-vacuum amplifiers, i-transistor amplifiers, i-amplifiers eqinile kunye ne-magnetic amplifiers ngokwezixhobo ezisebenzayo ezisetyenzisiweyo, phakathi kwazo i-transistor amplifiers zisetyenziswa kakhulu.Ii-amplifaya zeTransistor zihlala zisetyenziselwa ukukhulisa amandla ombane kunye nokwandiswa kwangoku kwemiqondiso kwizixhobo ezizenzekelayo, ngakumbi ngendlela yokukhulisa isiphelo esinye kunye nokukhulisa i-push-pull.

Umgaqo: I-amplifier yamandla aphindaphindiweyo isetyenziswa kwinqanaba lokugqibela le-transmitter.Umsebenzi wayo kukukhulisa amandla ophawu oluphezulu olumodareyithwayo ukuze ihlangabezane neemfuno zamandla okuthumela, emva koko uyisasaze esithubeni nge-eriyali ukuqinisekisa ukuba umamkeli kwindawo ethile unokufumana inqanaba lomqondiso owanelisayo, kwaye akakwenzi oko. ukuphazamisa unxibelelwano lwemijelo emeleneyo.

I-amplifier yamandla amatyeli aphezulu yinxalenye ebalulekileyo yesixhobo sothumelo kwinkqubo yonxibelelwano.Ngokobubanzi bebhendi yayo yokusebenza kwamaza, inokwahlulwa ibe yi-amplifier yamandla emxinwa ye-high-frequency kunye ne-wide-band high-frequency amplifier yamandla.I-Narrow-frequency-high-frequency amplifier yamandla ihlala ithatha i-frequency yokukhetha i-frequency kunye nomsebenzi wokhetho lokuhluza rhoqo njenge-outout loop, ke ikwabizwa ngokuba yi-tuned power amplifier okanye i-resonant power amplifier.Isekethe yemveliso ye-wideband high-frequency power amplifier sisiguquli somgca wothumelo okanye enye isekethe ehambelanayo ye-wideband, ngoko ikwabizwa ngokuba yi-amplifaya yamandla engasetyenziswanga.I-amplifier yamandla akwi-high-frequency luhlobo lwesixhobo sokuguqula amandla, esiguqula amandla e-DC abonelelwa ngonikezelo lwamandla kwimveliso ye-AC ephezulu.Iyaziwa ngexesha le-"Low frequency Electronic Circuit".Ngokutsho kwe-Angle conduction yangoku eyahlukileyo, i-amplifier inokwahlulwa ibe yi-A, B, C iindidi ezintathu zamazwe asebenzayo.I-Angle yokuhamba yangoku ye-Class A amplifier yi-360o, efanelekile kumqondiso omncinci kunye nokukhulisa amandla aphantsi.I-Angle yokuhamba yangoku ye-Class B amplifier malunga ne-180o;I-Angle yeamplifier yodidi lwangoku ingaphantsi kwe-180o.Zombini iKlasi B kunye neKlasi C zilungele umsebenzi wamandla aphezulu.Amandla okuvelisa kunye nokusebenza kakuhle kwemeko yokusebenza yeKlasi C yeyona iphakamileyo phakathi kweemeko ezintathu zokusebenza.Izandisi zamandla ezixhaphakileyo zisebenza ikakhulu kwiklasi C. Nangona kunjalo, ukugqwethwa kwendlela yamaza yangoku yeeamplifiers zeKlasi C kukhulu kakhulu ukuba kungasetyenziselwa ukukhulisa amandla okumaza aphantsi, kwaye kunokusetyenziswa kuphela ukukhulisa amandla okuguquguqukayo ngeluphu elungelelanisiweyo. umthwalo.Ngenxa yesakhono sokucoca sesekethe elungisiweyo, i-circuit current kunye ne-voltage isekufutshane kakhulu kwi-waveform ye-sinusoidal kwaye ukugqwesa kuncinci kakhulu.