Cov txheej txheem:

Laboratory Power Supply From Old ATX: 8 Kauj Ruam (nrog Duab)
Laboratory Power Supply From Old ATX: 8 Kauj Ruam (nrog Duab)

Video: Laboratory Power Supply From Old ATX: 8 Kauj Ruam (nrog Duab)

Video: Laboratory Power Supply From Old ATX: 8 Kauj Ruam (nrog Duab)
Video: Making a ATX Bench Power Supply 2024, Kaum ib hlis
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Kuv tsis muaj lub zog siv rau lub hom phiaj lab rau lub sijhawm ntev dhau los tab sis qee zaum nws yuav tsim nyog. Dhau li ntawm qhov ntsuas qhov ntsuas tau nws kuj tseem muaj txiaj ntsig zoo los txwv cov zis tam sim no piv txwv li nyob rau hauv cov ntaub ntawv ntawm kev sim tshiab PCBs tsim. Yog li kuv txiav txim siab ua nws los ntawm kuv tus kheej los ntawm cov khoom muaj.

Txij li thaum kuv muaj lub khoos phis tawj ATX tsis siv hluav taws xob nyob hauv tsev, Kuv txiav txim siab siv nws los ua lub zog siv. Feem ntau, cov khoom siv fais fab qub ATX xaus rau hauv lub thoob khib nyiab vim tias lawv muaj lub zog qis (piv rau) thiab lawv tsis siv tau rau lub khoos phis tawj tshiab. Yog tias koj tsis muaj, koj tuaj yeem tau txais ib qho pheej yig heev los ntawm cov khw muag khoom siv computer thib ob. Lossis tsuas yog nug koj cov phooj ywg seb lawv puas muaj nyob hauv lub loft. Cov no yog cov peev txheej zoo heev rau cov phiaj xwm hluav taws xob diy.

Txoj kev no kuv kuj tsis tas yuav mob siab rau qhov teeb meem no ntau. Yog li kuv tau tshawb nrhiav tus qauv, uas haum rau kuv qhov kev cia siab:

  • Muab qhov sib txawv ntawm qhov hluav taws xob thiab tam sim no
  • Ua haujlwm los ntawm 12V input voltage
  • Qhov siab tshaj plaws qhov hluav taws xob tsawg kawg yog 24V
  • Tam sim no tso zis ntau tshaj yog tsawg kawg 3A
  • Thiab kuj tseem pheej yig.

Kauj Ruam 1: ZK-4KX Module

Siv Cheebtsam
Siv Cheebtsam

Kuv tau pom ZK-4KX DC-DC Buck-Boost hloov pauv tus qauv uas haum rau txhua qhov ntawm kuv qhov kev cia siab. Saum toj no ntawm qhov uas nws tau teeb tsa nrog cov neeg siv cuam tshuam nrog (zaub, khawm, tus lej nkag teb chaws) yog li kuv tsis tas yuav yuav lawv cais.

Nws muaj cov nram qab no tsis:

  • Cov tswv yim hluav taws xob: 5 - 30 V
  • Cov zis hluav taws xob: 0.5 - 30 V
  • Cov zis tam sim no: 0 - 4 A.
  • Zaub daws teeb meem: 0.01 V thiab 0.001 A.
  • Nqe yog ~ 8 - 10 $

Nws muaj ntau yam ntxiv thiab kev tiv thaiv Rau cov ncauj lus ntxaws ntxaws thiab cov yam ntxwv pom kuv cov vis dis aus thiab qhov kawg ntawm cov ntawv no.

Kauj Ruam 2: Siv Cov Khoom Siv

Saum toj no ntawm DC-DC hloov pauv thiab khoos phis tawj ATX cov qauv peb xav tau tsuas yog qee lwm yam khoom siv kom muaj lub zog siv tau zoo:

  • LED + 1k resistor rau qhia qhov xwm txheej ntawm chav ATX.
  • Hloov pauv yooj yim rau lub zog ntawm chav ATX.
  • Txiv tsawb poj niam txuas (2 khub)
  • Aligator clip - txiv tsawb ntsaws cable.

Dhau li ntawm qhov hloov kho tau kuv kuj xav kom muaj kev txhim kho +5V tso tawm vim nws tau siv ntau zaus.

Kauj Ruam 3: ATX Lub Hwj Huam Fais Fab

ATX Fais Fab Khoom
ATX Fais Fab Khoom
ATX Fais Fab Khoom
ATX Fais Fab Khoom
ATX Fais Fab Khoom
ATX Fais Fab Khoom

Saib Xyuas!

  • Txij li ATX lub zog xa hluav taws xob ua haujlwm nrog qhov hluav taws xob siab, saib xyuas tias nws tsis tau ntsaws thiab tseem tos qee lub sijhawm ua ntej muab nws sib nrug! Nws suav nrog qee qhov ntsuas hluav taws xob siab uas xav tau qee lub sijhawm tso tawm, yog li tsis txhob kov lub Circuit Court li ob peb feeb.
  • Kuj tseem saib xyuas thaum lub sij hawm soldering tias koj tsis ua hluav taws xob luv.
  • Nco ntsoov tias koj tsis hnov qab txuas lub ntiaj teb tiv thaiv cable (ntsuab-daj) rov qab rau nws txoj haujlwm.

Kuv lub khoos phis tawj ATX chav tsev yog 300W, tab sis muaj ntau qhov sib txawv sib txawv, ib qho ntawm lawv haum rau lub hom phiaj no. Nws muaj cov qib hluav taws xob sib txawv, lawv tuaj yeem sib txawv los ntawm cov xim xaim:

  • Ntsuab: Peb yuav xav tau nws kom muaj zog ntawm lub cuab yeej los ntawm kev luv nws ua ke nrog hauv av.
  • Ntshav: +5V Standby. Peb yuav siv los qhia qhov xwm txheej ntawm ATX.
  • Daj: +12V. Nws yuav yog lub hwj chim los ntawm DC-DC Converter.
  • Liab: +5V. Nws yuav yog kho 5V tso zis rau lub zog siv.

Thiab cov kab hauv qab no tsis siv, tab sis yog tias koj xav tau ib qho ntawm lawv, tsuas yog txuas nws cov xaim mus rau phaj pem hauv ntej.

  • Grey: +5V Fais Fab Ok.
  • Txiv kab ntxwv: +3.3V.
  • Xiav: -12V.
  • Dawb: -5V.

Kuv ATX Cov Khoom Siv Hluav Taws Xob kuj tseem muaj AC tso tawm uas tsis xav tau yog li kuv tau tshem nws. Qee qhov sib txawv muaj qhov hloov pauv, uas muaj txiaj ntsig zoo dua hauv cov haujlwm no.

Tom qab disassembling kuv tshem tawm txhua cov xov tooj uas tsis tsim nyog thiab AC txuas txuas ntxiv.

Kauj Ruam 4: Phaj Pem Hauv Ntej

Phaj Pem Hauv Ntej
Phaj Pem Hauv Ntej
Phaj Pem Hauv Ntej
Phaj Pem Hauv Ntej
Phaj Pem Hauv Ntej
Phaj Pem Hauv Ntej

Txawm hais tias tsuas muaj qhov chaw me me nyob sab hauv ATX chav nyob, nrog qee qhov kev npaj kuv muaj peev xwm tso tag nrho cov neeg siv sib cuam tshuam ntawm ib sab. Tom qab tsim cov txheej txheem ntawm cov khoom kuv tau txiav lub qhov los ntawm lub phaj, siv jigsaw thiab laum.

Kauj Ruam 5: Xim Xim

Painting Case
Painting Case
Painting Case
Painting Case

Txij li thaum rooj plaub zoo li tsis zoo li, kuv yuav tshuaj tsuag xim kom muaj qhov zoo dua. Kuv tau xaiv hlau xim dub rau nws.

Kauj Ruam 6: Txuas Cov Khoom Siv

Kev thaiv cov khoom
Kev thaiv cov khoom

Koj yuav tsum txuas cov khoom siv raws li hauv qab no hauv lub thawv:

  • Hwj chim Ntawm hlau (ntsuab) + hauv av → Hloov
  • Standby hlau (ntshav) + hauv av → LED + 1k resistor
  • + 12V xaim (daj) + hauv av → Kev nkag ntawm ZK-4KX Module
  • ZK-4KX Cov Qauv → Txiv tsawb txiv neej txuas
  • + 5V xaim (liab) + hauv av → Lwm txiv tsawb poj niam txuas

Txij li thaum kuv tshem lub AC Output connector thiab muaj lub tshuab hloov pauv txuas rau nws, Kuv yuav tsum tau sib dhos lub tshuab hloov pauv ntawm rooj plaub nrog kua nplaum kub.

Kauj Ruam 7: Qhov tshwm sim

Qhov tshwm sim
Qhov tshwm sim
Qhov tshwm sim
Qhov tshwm sim

Tom qab sib dhos rooj plaub kuv tau siv nws kom ua tiav thiab sim txhua qhov tshwj xeeb ntawm lub zog fais fab.

Qhov tsuas yog kuv yuav tsum tau ua yog qhov ntsuas raws li koj tuaj yeem pom hauv video.

Kauj Ruam 8: Calibration + Nta

Txij li qhov ntsuas qhov ntsuas los ntawm ZK-4KX Module tsis zoo ib yam li kuv ntsuas nrog kuv lub ntsuas ntsuas, Kuv pom zoo kom ntsuas nws qhov ntsuas ua ntej siv lub hwj chim. Nws kuj tseem muab qee qhov kev tiv thaiv tiv thaiv kev ua haujlwm dhau qhov hnyav xws li dhau qhov hluav taws xob/tam sim no/lub zog/ntsuas kub. Lub cuab yeej yuav kaw qhov tso tawm yog tias nws kuaj pom qhov ua txhaum.

Los ntawm luv nias lub SW khawm, koj tuaj yeem hloov pauv ntawm cov hauv qab no kom pom hauv kab thib ob:

  • Cov zis tam sim no [A]
  • Lub zog tso tawm [W]
  • Lub peev xwm tso tawm [Ah]
  • Lub sijhawm dhau los txij li lub zog [h]

Los ntawm ntev nias lub pob SW, koj tuaj yeem hloov pauv ntawm cov hauv qab no los ua kom pom hauv kab thawj:

  • Tawm tswv yim voltage [V]
  • Cov zis hluav taws xob [V]
  • Kub [° C]

Txhawm rau nkag mus rau qhov ntsuas teeb tsa hom, koj yuav tsum nias ntev U/I khawm. Koj yuav muaj peev xwm teeb tsa cov hauv qab no:

  • Feem ntau qhib [ON/OFF]
  • Nyob rau hauv qhov hluav taws xob [V]
  • Tshaj voltage [V]
  • Tshaj tam sim no [A]
  • Tshaj zog [W]
  • Tshaj kub [° C]
  • Overcapacity [Ah/OFF]
  • Sijhawm [h/OFF]
  • Calibration ntawm input voltage [V]
  • Calibration ntawm cov zis voltage [V]
  • Calibration ntawm cov zis tam sim no [A]

Pom zoo: