Amplifier ndi mtima ndi mzimu wa audio system.Amplifier amagwiritsa ntchito mphamvu yamagetsi yaying'ono (electromotive force).Kenako amazidyetsa mu transistor kapena vacuum chubu, yomwe imagwira ntchito ngati chosinthira ndikuyatsa / kuzimitsa mwachangu kutengera mphamvu yokulirapo kuchokera pamagetsi ake.Mphamvu ya amplifier ikaperekedwa, mphamvuyo imalowa (chizindikiro cholowera) kudzera pa cholumikizira cholowera ndipo imakulitsidwa mpaka mulingo wapamwamba kwambiri.Izi zikutanthawuza kuti chizindikiro chochepa cha mphamvu chochokera kutsogolo kwa amplifier chimakwezedwa pamlingo wokwanira kuti wokamba nkhani kapena mahedifoni azitulutsanso phokoso, kutilola kumvetsera nyimbo ndi makutu athu.

Makanema 4 amplifier mphamvu yayikulu yawonetsero yamkati kapena yakunja

Mfundo ya Power Amplifier

Gwero la mawu limasewera mazizindikiro osiyanasiyana kuti akweze bokosi lamawu.

Monga Kalasi D Magnum

Class-D Power amplifier ndi njira yokulitsa momwe gawo la amplifier lili mukusintha.

Palibe cholowetsa chizindikiro: amplifier m'malo odulidwa, osagwiritsa ntchito mphamvu.

Pali kulowetsa kwa siginecha: Chizindikiro cholowera chimapangitsa transistor kulowa mumalo odzaza, transistor kuyatsa chosinthira, magetsi ndi katundu zimalumikizidwa mwachindunji.

Class D Power amplifier kwa olankhula akatswiri

Mfundo zazikuluzikulu za kusankha ndi kugula

1.Choyamba ndichowona ngati mawonekedwe atha

Mawonekedwe ofunikira kwambiri olowera ndi kutulutsa omwe AV amplifier mphamvu ayenera kukhala ndi izi: coaxial, optical fiber, RCA mawonekedwe olowera njira zingapo zolowera digito kapena siginecha ya audio ya analogi;horn linanena bungwe mawonekedwe kuti linanena bungwe chizindikiro kuti audio.

2.Yachiwiri ndiyowona ngati mawonekedwe ozungulira ozungulira atha.

Mitundu yodziwika bwino yozungulira ndi DD ndi DTS, zonse zomwe zili 5.1.Tsopano mawonekedwe awiriwa apanga DD EX ndi DTS ES, onse omwe ali 6.1channel.

3.Onani ngati mphamvu zonse za njira zingathe kusinthidwa mosiyana

Ma amplifiers ena otsika mtengo amagawaniza njira ziwirizo kukhala njira zisanu.Ngati njirayo ndi yayikulu, idzakhala yayikulu komanso yaying'ono, ndipo amplifier yoyenereradi ya AV ikhoza kusinthidwa padera.

4.onani kulemera kwa amplifier.

Nthawi zambiri, tiyenera kuyesetsa kusankha mtundu wolemera wa makina, chifukwa chake ndi chakuti zida zolemera kwambiri gawo loyamba lamagetsi ndi lamphamvu, kulemera kwake kwa amplifier mphamvu kumachokera kumagetsi ndi chassis, zidazo zimalemera kwambiri. , zomwe zikutanthauza kuti mtengo wa transformer wogwiritsidwa ntchito ndi iye ndi wokulirapo, kapena mphamvu yokhala ndi mphamvu zazikulu imagwiritsidwa ntchito, yomwe ndi njira yowonjezera khalidwe la amplifier.Kachiwiri, chassis ndi yolemetsa, zinthu ndi kulemera kwa chassis zimakhala ndi mphamvu inayake pamawu.Chassis yopangidwa ndi zida zina ndiyothandiza pakulekanitsa mafunde a wailesi kuchokera kudera la chassis ndi dziko lakunja.Kulemera kwa chassis ndikwambiri kapena mawonekedwe ake ndi okhazikika, komanso amatha kupewa kugwedezeka kosafunikira kwa zida ndikusokoneza phokoso.Chachitatu, mphamvu yokulirapo yamphamvu kwambiri, zinthuzo zimakhala zolemera komanso zolimba.