DIY Kumanga amplifier yanu yam'mutu. Kupanga, thiransifoma, kutsamwitsa, mbale.

Onani ma Amplifiers a Headphone mu Muzyczny.pl

Gawo ili la gawoli ndi kupitiriza kwa gawo lapitalo, lomwe linali ngati chiyambi cha dziko la zamagetsi, momwe tidatenga mutu womanga headphone amplifier tokha. Mu izi, komabe, tidzayandikira mutuwo mwatsatanetsatane ndikukambirana chinthu chofunikira kwambiri cha amplifier yam'mutu, yomwe ndi magetsi. Pali njira zingapo zomwe mungasankhe, koma tikambirana za mapangidwe amtundu wamagetsi.

Mapangidwe amagetsi apamakutu

Kwa ife, magetsi amplifier yam'mutu sangakhale chosinthira. Mutha kupanga imodzi kapena kugwiritsa ntchito yopangidwa kale, koma polojekiti yathu yakunyumba titha kusankha kugwiritsa ntchito magetsi achikhalidwe potengera kugunda ndi kukhazikika kwa mzere. Mphamvu yamtunduwu ndiyosavuta kupanga, thiransifoma sikhala yokwera mtengo chifukwa sifunikira mphamvu zambiri kuti igwire bwino ntchito. Kupatula apo, sipadzakhala mavuto ndi kusokonezedwa ndi zovuta zomwe zimachitika ndi otembenuza. Mphamvu yotereyi imatha kukwera mosavuta pa bolodi lomwelo monga dongosolo lonse kapena kunja kwa bolodi koma mkati mwa nyumba yomweyo. Apa, aliyense ayenera kusankha yekha njira yomwe ili yoyenera kwa iye.

Kungoganiza kuti timayang'ana kwambiri pakumanga amplifier yabwino, mphamvu zake sizingamangidwe mosasamala. Kutengera ndi zomwe IC ikunena, mphamvu zamagetsi zadera lathu lalikulu ziyenera kukhala pakati pazikhalidwe zomwe zafotokozedwa. Magetsi ambiri amtundu wamtunduwu ndi + -5V ndi + - 15V. Ndi mtundu uwu, ndikupangira kuti mukhazikitse gawoli mocheperapo ndikuyika magetsi, mwachitsanzo, mpaka 10 kapena 12V, kuti mbali imodzi tili ndi zosungirako zina, ndipo kumbali inayo, tisalemedwe. dongosolo pogwiritsa ntchito kwambiri mphamvu. Mphamvu yamagetsi iyenera kukhala yokhazikika ndipo chifukwa cha izi muyenera kugwiritsa ntchito ma stabilizer pamagetsi abwino ndi ma voltage negative, motsatana. Pomanga magetsi oterowo, titha kugwiritsa ntchito, mwachitsanzo: zinthu za SMD kapena zinthu zapabowo. Titha kugwiritsa ntchito zinthu zina, mwachitsanzo ma capacitor odutsa m'bowo, mwachitsanzo ma SMD stabilizer. Apa, chisankho ndi chanu komanso zinthu zomwe zilipo.

Kusintha kwa Transformer

Ndi chinthu chofunikira chomwe chili chofunikira pakugwira bwino ntchito kwamagetsi athu. Choyamba, tiyenera kufotokozera mphamvu zake, zomwe siziyenera kukhala zazikulu kuti tikwaniritse magawo abwino. Timangofunika ma watts ochepa, ndipo mtengo wake ndi 15W. Pali mitundu ingapo ya ma transfoma pamsika. Mukhoza kugwiritsa ntchito, mwachitsanzo, toroidal transformer ya polojekiti yathu. Iyenera kukhala ndi zida ziwiri zachiwiri ndipo ntchito yake idzakhala kupanga magetsi osakanikirana. Moyenera, titha kupeza pafupifupi 2 x 14W mpaka 16W alternating voltage. Kumbukirani kuti musapitirire mphamvuyi kwambiri, chifukwa magetsi adzawonjezeka pambuyo posalala ndi ma capacitors.

Kupanga matailosi

Nthawi zomwe zamagetsi kunyumba zimayika mbale zokha zatha. Masiku ano, pachifukwa ichi, tigwiritsa ntchito malaibulale okhazikika popanga matailosi, omwe amapezeka pa intaneti.

Kugwiritsa ntchito zokopa

Kuphatikiza pa zinthu zofunika zomwe timafunikira pamagetsi athu, ndikofunikira kugwiritsa ntchito kutsamira pazotulutsa zamagetsi, zomwe pamodzi ndi ma capacitors amapanga zosefera zotsika. Chifukwa cha yankho ili, tidzatetezedwa ku kusokoneza kulikonse kuchokera kumagetsi, mwachitsanzo pamene chipangizo china chamagetsi chapafupi chikazimitsa kapena kuzimitsa.

Kukambitsirana

Monga tikuonera, magetsi ndi chinthu chosavuta kupanga cha amplifier, koma ndichofunika kwambiri. Zachidziwikire, mutha kugwiritsa ntchito chosinthira cha dcdc m'malo mwamagetsi amzere, omwe amasintha voliyumu imodzi kukhala voteji yofananira. Iyi ndi njira yoyenera kuiganizira ngati tikufunadi kuchepetsa PCB ya amplifier yathu yomanga. Komabe, m'malingaliro anga, ngati tikufuna kukhala ndi mawu omveka bwino okonzedwa, njira yabwino kwambiri ndiyo kugwiritsa ntchito magetsi amtundu wotere.