DIY Tsim koj tus kheej lub mloog pob ntseg amplifier. Tsim, transformer, chokes, daim hlau.

Saib Headphone amplifiers hauv Muzyczny.pl

Ib feem ntawm kab lus no yog ib qho txuas ntxiv ntawm ntu dhau los, uas yog ib hom kev taw qhia rau lub ntiaj teb ntawm cov khoom siv hluav taws xob, uas peb tau coj los ua lub ntsiab lus ntawm kev tsim lub mloog pob ntseg ntawm peb tus kheej. Hauv qhov no, txawm li cas los xij, peb yuav mus rau lub ntsiab lus kom ntxaws ntxiv thiab sib tham txog ib qho tseem ceeb ntawm peb lub mloog pob ntseg amplifier, uas yog lub hwj chim. Muaj ob peb txoj hauv kev xaiv los ntawm, tab sis peb yuav tham txog kev tsim cov khoom siv hluav taws xob ib txwm muaj.

Headphone power supply design

Nyob rau hauv peb cov ntaub ntawv, lub hwj chim mov rau lub mloog pob ntseg amplifier yuav tsis yog ib tug converter. Koj tuaj yeem tsim ib qho los yog siv ib qho kev npaj ua tiav, tab sis rau peb qhov project hauv tsev peb tuaj yeem xaiv los siv cov khoom siv hluav taws xob ib txwm siv raws li kev sib tsoo thiab cov kab hluav taws xob stabilizers. Hom kev siv fais fab no yooj yim heev rau kev tsim, lub transformer yuav tsis kim vim nws tsis xav tau ntau lub zog rau kev ua haujlwm kom raug. Tsis tas li ntawd, yuav tsis muaj teeb meem nrog kev cuam tshuam thiab teeb meem tshwm sim nrog cov hloov pauv. Cov khoom siv hluav taws xob zoo li no tuaj yeem yooj yim mounted ntawm tib lub rooj tsavxwm raws li qhov seem ntawm lub kaw lus lossis sab nraum lub rooj tsavxwm tab sis hauv tib lub tsev. Ntawm no, txhua tus neeg yuav tsum xaiv rau nws tus kheej uas qhov kev xaiv haum rau nws zoo tshaj plaws.

Piv txwv tias peb tsom mus rau kev tsim kom muaj lub suab nrov zoo, nws lub zog tsis tuaj yeem ua tsis tau. Nyob ntawm qhov tshwj xeeb ntawm IC, lub zog hluav taws xob rau peb lub ntsiab hluav taws xob yuav tsum nyob nruab nrab ntawm cov nqi teev tseg. Qhov hluav taws xob ntau tshaj plaws rau cov khoom siv no yog + -5V thiab + - 15V. Nrog rau qhov no, kuv xav kom koj nruab qhov ntsuas qhov ntsuas no ntau dua lossis tsawg dua thiab teeb tsa lub zog hluav taws xob, piv txwv li, rau 10 lossis 12V, yog li ntawm ib sab peb muaj qee qhov tshwj xeeb ntxiv, thiab ntawm qhov tod tes, peb tsis overburden. qhov system los ntawm kev siv lub zog siab tshaj plaws. Qhov voltage yuav tsum tau stabilized thiab rau qhov no koj yuav tsum siv stabilizers rau qhov zoo voltage thiab tsis zoo voltage, feem. Hauv kev tsim cov khoom siv hluav taws xob zoo li no, peb tuaj yeem siv, piv txwv li: SMD cov ntsiab lus lossis cov ntsiab lus los ntawm qhov. Peb tuaj yeem siv qee lub ntsiab lus, piv txwv li los ntawm lub qhov capacitors, thiab xws li SMD stabilizers. Ntawm no, qhov kev xaiv yog koj li thiab cov khoom muaj.

Transformer xaiv

Nws yog ib qho tseem ceeb uas yog ib qho tseem ceeb rau kev ua haujlwm ntawm peb lub hwj chim. Ua ntej ntawm tag nrho cov, peb yuav tsum tau txhais nws lub hwj chim, uas tsis tas yuav loj kom ua tau zoo tsis. Peb tsuas yog xav tau ob peb watts, thiab qhov zoo tshaj plaws tus nqi yog 15W. Muaj ntau ntau hom transformers nyob rau hauv kev ua lag luam. Koj tuaj yeem siv, piv txwv li, toroidal transformer rau peb qhov project. Nws yuav tsum muaj ob yam riam phom thib ob thiab nws txoj hauj lwm yuav yog los tsim kom muaj qhov sib npaug. Qhov zoo tshaj plaws, peb yuav tau txais txog 2 x 14W rau 16W alternating voltage. Nco ntsoov tsis txhob tshaj lub zog no ntau dhau, vim hais tias qhov voltage yuav nce tom qab smoothing nrog capacitors.

Pobzeb tsim

Lub sij hawm thaum electronics hauv tsev etch daim hlau los ntawm lawv tus kheej dhau lawm. Niaj hnub no, rau lub hom phiaj no, peb yuav siv cov qauv tsev qiv ntawv rau kev tsim cov vuas, uas muaj nyob rau hauv lub vev xaib.

Kev siv chokes

Ntxiv rau cov qauv tsim nyog ntawm peb cov khoom siv hluav taws xob, nws tsim nyog siv chokes ntawm qhov hluav taws xob tawm, uas ua ke nrog cov capacitors tsim cov lim dej qis. Ua tsaug rau qhov kev daws teeb meem no, peb yuav tiv thaiv kev nkag mus ntawm ib qho kev cuam tshuam sab nraud los ntawm cov khoom siv hluav taws xob, xws li thaum lwm yam khoom siv hluav taws xob nyob ze tig los yog tawm.

Summation

Raws li peb tuaj yeem pom, cov khoom siv hluav taws xob yog ib qho yooj yim-rau-tsim lub hauv paus ntawm peb lub amplifier, tab sis nws tseem ceeb heev. Tau kawg, koj tuaj yeem siv dcdc converter es tsis txhob siv cov khoom siv hluav taws xob tawm, uas hloov ib qho hluav taws xob rau hauv qhov hluav taws xob sib luag. Qhov no yog tus txheej txheem tsim nyog xav txog yog tias peb xav txo qis PCB ntawm peb lub tshuab hluav taws xob tsim. Txawm li cas los xij, hauv kuv lub tswv yim, yog tias peb xav kom muaj qhov ua tau zoo tshaj plaws ntawm lub suab ua tiav, qhov kev daws teeb meem zoo dua yog siv cov khoom siv hluav taws xob ib txwm muaj.