Mu zamakonomakina omvetsera,Mosakayikira, ma amplifiers ndi chimodzi mwa zinthu zofunika kwambiri. Sikuti amangokhudza ubwino wa mawu okha, komanso amatsimikiza momwe ntchito yonse imagwirira ntchito komanso momwe wogwiritsa ntchito amagwirira ntchito. Nkhaniyi ifufuza mfundo zazikulu zama amplifiers amphamvukuti zikuthandizeni kumvetsetsa chifukwa chake zinthu izi ndizofunikira kwambiri.
1. Mphamvu yotulutsa: Yendetsani mtima wa nyanga
Chimodzi mwa ntchito zazikulu za amplifier ndikupereka mphamvu yokwanira yoyendetsera sipika. Mphamvu yotulutsa imatsimikiza ngati makina amawu amatha kusunga mawu omveka bwino komanso osasokonezeka pamitundu yosiyanasiyana. Mphamvu yotulutsa ya amplifier yamagetsi nthawi zambiri imawonetsedwa mu watts (W). Kusankha amplifier yoyenera kumafuna kuganizira mfundo izi:
Mphamvu yovomerezeka ya sipika: Mphamvu ya amplifier iyenera kufanana ndi mphamvu yovomerezeka ya sipika. Mphamvu yochepa ingayambitse voliyumu yosakwanira komanso kusokoneza, pomwe mphamvu yochulukirapo ingawononge sipika.
Kukula kwa chipinda ndi malo olankhulira: M'zipinda zazikulu kapena m'malo omwe mawu ake sagwira bwino, ma amplifiers amphamvu kwambiri amafunika kuti awonetsetse kuti mawuwo akuphimbidwa bwino komanso mofanana.
Mtundu wa nyimbo ndi zizolowezi zomvetsera: Ogwiritsa ntchito omwe amakonda kumvetsera nyimbo zamtundu wa dynamic range angafunike ma amplifier amphamvu kwambiri kuti asunge tsatanetsatane ndi mphamvu za nyimbozo pa voliyumu yayikulu.
2. Kupotoza: Chopha mawu chosaoneka bwino
Kupotoza ndi chimodzi mwa zizindikiro zofunika kwambiri poyesa ubwino wa ma amplifier amphamvu. Kumatanthauza kusintha kulikonse kosafunikira mu chizindikiro cholowera panthawi ya kukulitsa. Pali mitundu yambiri ya kupotoza:
Kusokonezeka kwa Harmonic: Kuchuluka kwa ma frequency komwe kumachitika panthawi yokweza ma signal. Kusokonezeka kumeneku kungapangitse mawu kukhala osazolowereka ndikukhudza mtundu wa mawu.
Kusokonezeka kwa ma modulation: ma frequency atsopano omwe amapangidwa pamene zizindikiro za ma frequency osiyanasiyana zimasakanizidwa mu amplifier, zomwe zingayambitse ma tone osafunikira mu chizindikiro cha audio.
Kusokonezeka kwa kayendedwe ka mphamvu: Ubale wosalunjika pakati pa kutulutsa kwa amplifier yamagetsi ndi chizindikiro cholowera, chomwe nthawi zambiri chimachitika panthawi yodzaza kwambiri.
Kapangidwe kabwino kwambiri ka amplifier kadzachepetsa kusokonekera kumeneku ndikupereka mawu omveka bwino komanso achilengedwe.
3. Kuyankha pafupipafupi: Kubwezeretsa m'lifupi ndi kuzama kwa mawu
Kuyankha pafupipafupi kumatanthauza kuchuluka kwa ma frequency komwe amplifier yamphamvu imatha kukulitsa bwino, nthawi zambiri imayesedwa mu Hertz (Hz). Amplifier yoyenera iyenera kupereka kukweza kosalala komanso kofanana mu ma audio spectrum onse (nthawi zambiri kuyambira 20Hz mpaka 20kHz). Kuyankha pafupipafupi kumakhudza mwachindunji momwe mawu amabwezeretsedwera:
Kuyankha kwafupipafupi: kumakhudza kuya ndi kukhudza kwa bass. Ma amplifier okhala ndi yankho labwino lafupipafupi angapereke zotsatira zamphamvu za bass.
Kuyankha kwapakati pafupipafupi: kumakhudza kwambiri magwiridwe antchito a mawu ndi zida, ndipo ndiye gawo lalikulu la mtundu wa mawu.
Kuyankha kwa ma frequency apamwamba: Kumakhudza kumveka bwino komanso magwiridwe antchito a tsatanetsatane wa ma noti apamwamba, ndipo chowonjezera champhamvu chokhala ndi mayankho abwino a ma frequency apamwamba chingapangitse mawuwo kukhala omveka bwino komanso enieni.
4. Chizindikiro cha phokoso (SNR): chitsimikizo cha khalidwe la mawu oyera
Chiŵerengero cha Chizindikiro ndi Phokoso ndi chizindikiro chomwe chimayesa chiŵerengero pakati pa chizindikiro chothandiza ndi phokoso mu chizindikiro chotulutsa cha amplifier yamphamvu, chomwe nthawi zambiri chimafotokozedwa mu ma decibel (dB). Chiŵerengero chapamwamba cha chizindikiro-kwa-phokoso chimatanthauza kuti amplifier yamphamvu imapanga phokoso lochepa lakumbuyo ikakulitsa chizindikirocho, ndikutsimikizira kuyera kwa mtundu wa mawu. Kusankha amplifier yamphamvu yokhala ndi chiŵerengero chapamwamba cha chizindikiro-kwa-phokoso kungachepetse kusokoneza kwa makutu ndikupereka chidziwitso chomveka bwino chomvetsera.
5. Kapangidwe ka ma amplifiers amagetsi: mwala wofunikira pakutsimikiza magwiridwe antchito
Kapangidwe ka mkati mwa chipangizo chothandizira mphamvu kumakhudza mwachindunji magwiridwe ake ndi mtundu wa mawu. Pali mapangidwe angapo ofanana a chipangizo cholumikizira:
Amplifier ya Gulu A: Ndi mawu abwino kwambiri koma osagwira ntchito bwino kwambiri, ndi yoyenera makina apamwamba a mawu omwe amatsatira mawu abwino kwambiri.
Amplifier ya Class B: Yogwira ntchito bwino kwambiri koma yosokoneza kwambiri, yomwe imagwiritsidwa ntchito kwambiri m'ma audio apakatikati mpaka otsika.
Amplifier ya Class AB: Imaphatikiza ubwino wa Class A ndi Class B, yokhala ndi mphamvu zambiri komanso khalidwe labwino la mawu, ndipo pakadali pano ndi kapangidwe ka amplifier kodziwika bwino.
Amplifier ya Class D: Ndi mphamvu yapamwamba kwambiri komanso kukula kochepa, ndi yoyenera zipangizo zonyamulika komanso makina amakono owonetsera zisudzo kunyumba.
Kapangidwe ka dera lililonse kali ndi ubwino ndi kuipa kwake, ndipo kusankha mtundu wa amplifier yomwe ikugwirizana ndi zosowa zanu ndikofunikira kwambiri.
6. Ntchito ndi mawonekedwe a ma amplifiers amphamvu: kukwaniritsa zosowa zosiyanasiyana
Ma amplifiers amakono samangofuna mawu abwino kwambiri, komanso amafunika kupereka ntchito zabwino komanso mawonekedwe kuti agwirizane ndi zochitika zosiyanasiyana zogwiritsidwa ntchito. Mwachitsanzo:
Ma interfaces angapo olowera, monga RCA, fiber optic, coaxial, HDMI, ndi zina zotero, amathandizira kulumikizana kwa zida zosiyanasiyana zoyambira mawu.
Kulumikizana opanda zingwe: monga Bluetooth ndi WiFi, komwe kungagwiritsidwe ntchito ndi mafoni ndi zida zinamachitidwe anzeru a nyumba.
Thandizo la njira zambiri: loyeneramakina owonetsera zisudzo kunyumba, zomwe zimapangitsa kuti mawu azimveka bwino kwambiri.
Kusankha amplifier yabwino kwambiri kumafuna kuganizira mozama zinthu monga kutulutsa mphamvu, kupotoza, kuyankha pafupipafupi, chiŵerengero cha chizindikiro ndi phokoso, kapangidwe ka dera, magwiridwe antchito, ndi mawonekedwe. Mwanjira imeneyi yokha ndi momwe tingatsimikizire magwiridwe antchito abwino kwambiri komanso momwe ogwiritsa ntchito amagwirira ntchito. Kaya ndinu wokonda nyimbo kapena wokonda zisudzo zapakhomo, kumvetsetsa ndi kulabadira zinthu zofunika izi kudzakuthandizani kusankha chipangizo cha amplifier chomwe chimakuyenererani bwino, zomwe zimapangitsa kuti chilichonse chomwe mukumvetsera chikhale chosangalatsa.
Nthawi yotumizira: Juni-06-2024