Modular Synthesizer Power Supply: 10 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Yog tias koj tab tom tsim lub tshuab hluav taws xob sib hloov, ib yam uas koj yuav xav tau tiag tiag yog lub zog siv. Feem ntau cov khoom sib txuas ua ke xav tau ob txoj kev tsheb nqaj hlau (0V, +12V thiab -12V yog qhov raug), thiab nws tseem tuaj yeem siv tau kom muaj 5V kev tsheb nqaj hlau ib yam nkaus yog tias koj tab tom npaj siv logic chips lossis cov txheej txheem xws li Arduino boards.

Muaj ntau txoj kev xaiv:

• Yuav cov khoom siv hluav taws xob ua hluav taws xob uas npaj tau - cov no tuaj yeem kim heev.
• Muas lub rooj zaum fais fab mov - dua qhov no tuaj yeem kim heev, thiab feem ntau ntawm cov khoom lag luam pheej yig dua tsuas muaj ib txoj kev tsheb nqaj hlau (+12V).
• Tsim koj tus kheej - pheej yig dua, tab sis koj yuav ua haujlwm ncaj qha nrog lub zog hluav taws xob, yog li koj yuav tsum ntseeg siab tias koj paub tias koj tab tom ua dab tsi.
• Tsim koj tus kheej siv lub ad-ad-off-the-shelf mains-txoj kev pheej yig tshaj thiab yooj yim tshaj plaws uas peb yuav siv ntawm no.

Kauj ruam 1: Txoj kev xav

Tej zaum koj paub tias yog tias koj tso ob lub roj teeb nyob rau hauv koob koj tau txais ob zaug qhov hluav taws xob. Cov duab qhia ob lub roj teeb 1.5V uas muab tag nrho ntawm 3V.

Daim ntawv ceeb toom, tau kawg, uas koj yuav tsum txuas qhov zoo ntawm thawj lub roj teeb mus rau qhov tsis zoo ntawm qhov thib ob yog li lawv cov voltages ntxiv ua ke. Yog tias koj ntsuas qhov ntsuas hluav taws xob ntawm taw tes B, koj yuav pom tias nws yog ib nrab ntawm tag nrho, piv txwv li 1.5 volts.

Qhov tseeb, raws li sab tes xis ntawm daim duab qhia, peb muaj kev ywj siab xaiv qhov peb txhais raws li 0V taw tes, yog li peb tuaj yeem kho ob lub roj teeb raws li +/- 1.5V cov khoom yog tias peb xav tau. Voltage yog tus txheeb ze yog li peb tuaj yeem xaiv qhov taw tes twg peb nyiam ua xoom.

Yog tias peb muaj ob lub 12V DC qhov hloov pauv loj, zoo ib yam li hauv qab no, siv tau zoo ib yam:

! (/img/projects/modular-synth/power-supply/dual-rail.png)

Txawm hais tias ob lub adapters tau txuas rau tib lub qhov (socket), qhov tso tawm ntawm txhua lub adapter tau raug cais (vim tias muaj kev hloov pauv ntawm lub zog tseem ceeb thiab 12V tso tawm). Qhov no txhais tau tias peb tuaj yeem kho txhua qhov tso tawm me ntsis zoo li roj teeb 12V. Yog tias peb txuas tus +ve ntawm ib qho mus rau -ve ntawm lwm qhov, thiab hu nws 0V, peb tau txais +/- 12V khoom siv:

Kauj Ruam 2: Xaiv Lub Hwj Chim Adapters

Koj yuav xav tau 2 lub zog hloov pauv, txhua qhov tso tawm 12V DC ntawm 1A (lossis 2A yuav ua). Tej zaum koj yuav muaj qee qhov nyob ib puag ncig los ntawm qee lub cuab yeej tsis nco qab ntev uas koj cuam tawm xyoo dhau los. Lossis koj tuaj yeem yuav lawv pheej yig heev.

Kauj Ruam 3: Qhov Ntsuas

Ob lub tshuab hluav taws xob tseem ceeb ua txhua txoj haujlwm nyuaj ntawm kev hloov pauv AC lub zog hluav taws xob mus rau 12V DC. Tab sis peb tseem xav tau muab cov khoom sib txuas kom peb tuaj yeem txuas ntau yam khoom siv rau lub zog siv - piv txwv li, ob peb lub racks me me thiab lub khob cij peb yuav ua haujlwm. Nco ntsoov lub hwj huam yuav tsuas yog muab 1A (lossis tej zaum 2A nyob ntawm cov khoom siv uas koj xaiv) - yog tias koj teeb tsa tau loj dhau koj yuav xav tau ntau dua ib lub hwj chim!

Peb cov khoom siv hluav taws xob feem ntau yog lub thawv khoob uas peb nce lub hwj huam nkag mus rau qhov tso tawm, tus lej tso tawm, thiab qee qhov LED los qhia tias lub hwj chim tau qhib.

Kuv txiav txim siab siv txiv tsawb ntsaws rau lub zog, rau ntau qhov laj thawj:

• Lawv zoo thiab chunky, yog li lawv tuaj yeem yooj yim tuav ob peb amps ntawm 12V.
• Lawv tuaj ntau yam xim.
• Txhua lub tsheb ciav hlau muaj nws tus kheej cov hlau lead, yog li yog lub cuab yeej tsis xav tau -12V koj tsuas tuaj yeem tsis ntsaws nws.
• Koj yuav tsis yuam kev lawv nrog cov kab txuas txuas thiab ua yuam kev ntsaws koj lub mloog pob ntseg zoo tshaj plaws rau hauv 12V!

Qhov ntawd tau hais tias, txiv tsawb ntsaws qee zaum siv rau lub tshuab tso tawm suab, yog li yog tias koj muaj lub tshuab hluav taws xob zoo li kev saib xyuas kom tsis txhob txuas lub hwj chim rau nws cov tswv yim!

Muaj ob hom qhov (socket) muaj. Qhov me me tsuas yog lub qhov (socket), qhov loj dua yog lub qhov (socket) thiab cov ntsia hlau davhlau ya nyob twg ua ke, yog li koj tuaj yeem txuas cov xov tooj liab liab rau nws (piv txwv li txhawm rau txhim kho lub rooj noj mov loj hlob). Kuv mus nrog qhov loj dua, muaj qhov sib txawv me ntsis hauv tus nqi thiab lawv muaj ntau yam ntxiv. Koj kuj tau txais kub plated txiv tsawb txuas - lawv yog rau lub suab zoo, thiab nws ncaj ncees tsis tsim nyog them nyiaj ntxiv rau lawv yog tias koj tsuas yog siv lawv ua lub zog coj.

Lub zog hluav taws xob qhia ntawm no muaj qhov ntsaws ntxiv rau 5V muab khoom, tab sis kuv tseem tsis tau ntxiv nws ntxiv, yog li 5V (ntsuab) cov dav hlau tam sim no tsis siv. Koj tsuas xav tau ntxiv 5V tus tswj hwm ntawm +12V khoom siv.

Kauj Ruam 4: Cheebtsam

Nov yog cov khoom koj yuav xav tau:

• Ib lub thawv yas (kwv yees 200 txog 120 x 60 mm).
• Ob lub 12V 1A DC adapters. * Ob lub 6mm thoob qhov (lossis xijpeem koj xav tau DC adapters).
• 16 4mm txiv tsawb qhov (4 txhua ntawm 4 xim sib txawv).
• 3 LEDs - Kuv siv liab, daj thiab ntsuab kom haum cov xim Kuv siv rau cov txiv tsawb nyob rau kab 12V, -12V thiab 5V.
• 31K resistors rau LEDs.
• Ib nrab ntawm ib lub 'meter' ntawm cov xaim, siv qee yam tuab dua li cov khoom siv hluav taws xob - 16 AWG tso tseg yog qhov zoo tshaj.

Kauj ruam 5: Schematic

Lub voj voog yog yooj yim heev. Lub zog los rau ntawm ob lub thoob qhov ntsaws. Peb txuas qhov zoo ntawm ib qho rau qhov tsis zoo ntawm lwm qhov, thiab qhov ntawd dhau los ua peb 0V. Ob sab ntawm ob sab ntawm lub qhov (socket) dhau los ua 12V thiab -12V.

Peb txoj kab hluav taws xob tau txuas ncaj qha mus rau cov khoom tso tawm cov txiv tsawb.

Muaj LED thiab 1K resistor hauv kab los ntawm 12V tsheb nqaj hlau mus rau 0V, thiab lwm qhov LED thiab tiv thaiv los ntawm -12V txog 0V. Daim ntawv ceeb toom tias LED thib ob tau thim rov qab (nws +tus pin txuas nrog 0V).

Qhov ntawd yog txhua yam muaj rau nws!

Kauj Ruam 6: Kev hloov pauv

Koj tuaj yeem hloov qhov haujlwm no hauv ntau txoj hauv kev:

• Cov naj npawb sib txawv sib txawv - txoj haujlwm muaj 4 qhov rau txhua txoj kev tsheb nqaj hlau. Koj tuaj yeem muaj tsawg dua yog tias koj xav tias koj yuav tsis xav tau ntau. Ua tib zoo xav, txawm li cas los xij, lub qhov (socket) yog qhov pheej yig heev thiab nws yuav txaj muag rau tsuas yog haum 2 lossis 3 pawg thiab pom tom qab uas koj xav tau ib qho ntxiv. Sib npaug koj tuaj yeem ntxiv ntau dua 4 qhov txuas rau ib txoj kev tsheb ciav hlau, tab sis ua tib zoo saib kom tsis txhob tshaj qhov txwv lub zog ntawm lub zog hloov kho. 4 zoo li zoo li nruab nrab zoo siab rau kuv.
• Cov LEDs tsis tsim nyog nruj me ntsis thiab tuaj yeem tso tseg. Kuv nyiam lawv vim tias kuv tuaj yeem pom tias txhua txoj kab tau tsav (piv txwv li kuv tsis tau hnov qab ntsaws ib qho ntawm cov hloov pauv hauv), tab sis nws yog nyob ntawm koj.
• Siv lwm rooj plaub. Qhov loj ntawm rooj plaub tsis yog qhov tseem ceeb, yog tias koj muaj cov ntaub ntawv seem muaj siv qhov ntawd. Kuv yuav tsis ua rau nws ntau dhau me me, vim tias yog tias koj muaj rooj plaub me me nrog ntau yam uas ntsaws rau hauv, nws yuav zoo li muab nws cov xov hluav taws xob ntau dua li zaum ntawm lub rooj ntev zaum. Qhov no tuaj yeem ua rau ntau txoj hlua cable, thiab thaum kawg cov khoom sib txuas yuav ua tsis tiav.
• Tawm ntawm 5V kev tsheb nqaj hlau yog tias koj xav tias koj yuav tsis xav tau nws.

Kauj Ruam 7: Drilling Case

Thawj kauj ruam hauv kev tsim kho yog txhawm rau tho qhov. Feem ntau ntawm cov no yog nyob rau sab saum toj ntawm rooj plaub.

16 qhov rau cov txiv tsawb nyob ntawm 4 txog 4 daim phiaj. Sim ua kom lawv tsawg kawg 2cm sib nrug yog li koj tuaj yeem ntsaws cov hlua txuas tau yooj yim. Kuv pom 4.5mm qhov yog qhov zoo tshaj plaws, tab sis nws yuav txawv nyob ntawm seb hom nyob qhov twg koj muaj.

Kuv tso 3 qhov rau LEDs nyob rau sab saum toj ntawm 12V, 5V thiab -12V kab ntawm qhov nyob. Kuv pom tias 6mm qhov yog qhov zoo tshaj plaws - LEDs thawb rau hauv qhov chaw yooj yim.

2 lub thoob qhov ntsaws rau lub zog los ntawm cov hloov pauv tau zoo tshaj plaws nyob tom qab ntawm lub thawv, tawm ntawm txoj kev. Lub qhov tsis yog puag ncig, cov duab plaub uas muaj ib nrab lub voj voog ntawm ib kawg. Koj yuav tsum tau laum ces ua cov qhov rau hauv cov duab.

Kauj Ruam 8: Muab Cov Khoom Siv

Cov qhov nyob hauv qhov chaw yog cov txiv ntoo hauv qab lub vaj huam sib luag.

Ib qho tseem ceeb yog tias koj siv cov ntsia hlau loj dua, nws yog qhov tseem ceeb uas koj siv ob lub txiv ntoo uas tau muab. Ua thawj cov txiv ntoo kom nruj, tom qab ntawd zawm lub txiv ntoo thib ob rau nws kom nws tsis tuaj yeem xoob. Yog tias cov txiv ntoo tsis nruj, thaum koj tig lub hau ntswj kom txuas cov xov hlau koj yuav pom tias lub qhov (socket) thaum kawg yuav xoob thiab pib tig.

Cov LEDs thawb rau hauv 6mm qhov, lawv yuav tsum haum zoo tab sis nws tsim nyog peb siv me ntsis ntawm cov kua nplaum los tiv thaiv lawv.

Cov thom khwm thom khwm tuaj yeem ruaj ntseg nrog cov ntsia hlau me me, lossis kua nplaum rau hauv qhov chaw.

Kauj Ruam 9: Txuas Txuas

Muab txhua qhov dub (0V) qhov nyob ua ke nrog 16 AWG tso tseg xaim, thiab txuas lawv mus rau qhov dav dav ntawm lub thoob qhov (socket) siv cov hlua thaiv (16 AWG dua - dawb hauv daim duab vim tias kuv tsis muaj dub).

Rov ua dua rau qhov liab (12V) qhov (socket). Cov xaim liab mus rau +ve lub davhlau ya nyob twg ntawm lub thoob ntsaws.

Rov ua dua rau qhov daj (-12V) qhov nyob. Cov xaim daj mus rau -ve lub davhlau ya nyob twg ntawm lub thoob qhov.

1K resistors tuaj yeem muab ncaj qha rau ntawm ob txhais ceg ntawm LEDs, uas tom qab ntawd tuaj yeem txuas nrog xaim mus rau txoj kev tsheb nqaj hlau (+12V rau LED liab, -12V rau LED daj) thiab hauv av.

Kauj ruam 10: Xeem

Txhawm rau ntsuas lub tsev, ntsaws ob lub zog hloov pauv rau hauv lub thoob qhov ntsaws, thiab tom qab ntawd nkag mus rau lub qhov hluav taws xob tseem ceeb.

Ob lub LEDs yuav tsum pom.

Yog tias koj muaj lub ntsuas hluav taws xob, siv nws los tshuaj xyuas tias muaj ib puag ncig 12V nruab nrab ntawm txhua khub ntawm cov xim liab thiab dub, thiab -12V ntawm txhua khub ntawm cov xim daj thiab dub.

Yog tias koj pom qhov nthuav no koj kuj tseem yuav nyiam kuv lub vev xaib synthesizer.