I-amplifier yintliziyo kunye nomphefumlo wenkqubo yomsindo.I-amplifier isebenzisa i-voltage encinci (i-electromotive force).Emva koko iyondla ibe yi-transistor okanye i-vacuum tube, esebenza njengokutshintsha kwaye ivule / icime ngesantya esiphezulu ngokuxhomekeke kumbane onyusiweyo ovela kumbane wayo.Xa unikezelo lwamandla lwe-amplifier lunikezelwa, amandla angena (uphawu lokufaka igalelo) ngokusebenzisa umdibaniso wegalelo kwaye akhuliswe kwinqanaba eliphezulu lombane.Oku kuthetha ukuba isignali yamandla aphantsi ukusuka kwi-amplifier yangaphambili iphakanyiswe kwinqanaba elaneleyo ukuba isithethi okanye i-headphones ivelise isandi, esivumela ukuba siphulaphule umculo ngeendlebe zethu.

Iitshaneli ezi-4 ezinkulu zeamplifier zangaphakathi okanye zangaphandle

Umgaqo-siseko weSikhulisi saMandla

Umthombo wesandi udlala imiqondiso eyahlukeneyo yesandi ukukhulisa ibhokisi yesandi.

Njenge Class D Magnum

Udidi lwe-D iamplifier yimo yokukhulisa apho i-elementi yeamplifier ikwimo yokutshintsha.

Akukho galelo lomqondiso: i-amplifier kwimeko yokunqunyulwa, akukho kusetyenziswa kwamandla.

Kukho igalelo lesignali: Igalelo legalelo lenza ukuba i-transistor ingene kwi-saturation state, i-transistor ivula iswitshi, ukunikezelwa kwamandla kunye nomthwalo udibene ngokuthe ngqo.

Udidi lwe-D lweamplifier yamandla kwisithethi esiqeqeshiweyo

Amanqaku aphambili okukhetha kunye nokuthenga

1.Eyokuqala kukubona ukuba ujongano lugqityiwe

Eyona nto ingundoqo igalelo kunye nojongano oluphumayo ukuba i-AV yamandla amplifier kufuneka ibandakanye oku kulandelayo: i-coaxial, i-fiber optical, i-RCA multi-channel input interface ye-input digital okanye i-analog audio signal;Ujongano lwemveliso yephondo lophawu lwemveliso ukuya kwiaudio.

2.Eyesibini kukubona ukuba ifomathi yesandi esijikelezileyo igqityiwe.

Iifomathi zesandi esingqongileyo ezidumileyo zi-DD kunye ne-DTS, zombini ziyi-5.1 channels.Ngoku ezi fomati zimbini ziphuhliswe ukuya kwi-DD EX kunye ne-DTS ES, zombini ziyi-6.1channel.

3.Jonga ukuba onke amandla etshaneli anokulungiswa ngokwahlukileyo

Ezinye iiamplifiers ezingabizi kakhulu zahlulahlula amajelo amabini abe ngamajelo amahlanu.Ukuba isitishi sikhulu, siya kuba sikhulu kwaye sincinci, kwaye iamplifier ye-AV efanelekile inokulungiswa ngokwahlukileyo.

4.jonga ubunzima beamplifier.

Ngokubanzi, kufuneka sizame konke okusemandleni ethu ukukhetha uhlobo olunzima lomatshini, isizathu sesokuba isixhobo esinzima indawo yokuqala yonikezelo lwamandla yomelele, uninzi lobunzima beamplifier yamandla ivela kunikezelo lwamandla kunye nechassis, izixhobo zinzima ngakumbi. , oku kuthetha ukuba ixabiso le-transformer elisetyenziswe nguye likhulu, okanye i-capacitance ene-capacitance enkulu isetyenzisiweyo, yindlela yokuphucula umgangatho we-amplifier.Okwesibini, i-chassis inzima, izinto kunye nobunzima be-chassis zinezinga elithile lempembelelo kwisandi.I-chassis eyenziwe ngezinto ezithile iluncedo ekuhlukaniseni amaza erediyo ukusuka kwisekethe kwi-chassis nakwilizwe langaphandle.Ubunzima be-chassis buphezulu okanye isakhiwo sizinzile, kwaye sinokunqanda ukungcangcazela okungadingekile kwesixhobo kunye nokuchaphazela isandi.Okwesithathu, iamplifier yamandla enzima ngakumbi, izinto eziphathekayo zihlala zizityebi kwaye ziqinile.