Cov txheej txheem:

DIY Adjustable Bench Power Supply Build: 4 Kauj Ruam (nrog Duab)
DIY Adjustable Bench Power Supply Build: 4 Kauj Ruam (nrog Duab)

Video: DIY Adjustable Bench Power Supply Build: 4 Kauj Ruam (nrog Duab)

Video: DIY Adjustable Bench Power Supply Build: 4 Kauj Ruam (nrog Duab)
Video: Diy Mic Amplifier Circuit..Do Loud Announcement..Simple Megaphone Circuit.. 2024, Kaum ib hlis
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Lub hwj chim Electronics
Lub hwj chim Electronics

Kuv tau siv cov khoom siv hluav taws xob qub raws li txoj cai tswj hwm rau ntau xyoo tam sim no, tab sis 15V-3A cov zis ntau tshaj, ua ke nrog cov lus qhia tsis raug qhov tseeb tau thawb kuv kom ua rau kuv tus kheej lub zog hluav taws xob uas hais txog cov teeb meem no.

Kuv saib lwm cov khoom siv fais fab uas tib neeg tau ua rau kev tshoov siab thiab txiav txim siab raws qee qhov kev xav tau yooj yim:

-Muaj hwj chim ntau dua li qhov qub analogue ib tus tuaj yeem xa tawm

-Cooling Fan (yog tias tsim nyog)

-Digital Zaub

-Saib zoo thiab muaj kev nyab xeeb (tsis yog qhov sib piv tsis yog ib qho ntawm cov no….)

Txog cov khoom siv hluav taws xob, txhua yam khoom tau los ntawm eBay lossis hla dhau ntawm kuv lub tsev kawm qib siab (tiag) yog li daim nqi ntawm cov ntaub ntawv yog qhov nyuaj rau txiav txim siab. Kuv kwv yees tias kuv tau siv tsawg dua € 12 hauv ib feem, tab sis qhov no yuav siab dua yog tias koj tsis tuaj yeem tau txais qee qhov (lub zog siv hluav taws xob) dawb, qhov twg tus nqi ntau heev nyob ntawm lub zog koj xav tau.

Thov nco ntsoov tias qhov no 'ible tsom mus rau kuv lub zog tsim khoom thiab yog li tsis yog txhua kauj ruam yog nyob rau hauv yuav ua li cas-rau cov style, tab sis ntau-yog li cov ntsiab lus ntawm cov kauj ruam tau ua. Yog xav paub ntau yam ntxiv Kuv zoo siab tshaj los pab ntawm no, tsuas yog tawm lus tawm ntawm no lossis ntawm kev ua yeeb yaj kiab video hauv youtube thiab kuv yuav teb ASAP:)

Kauj Ruam 1: Cov Khoom Siv Hluav Taws Xob

Lub hwj chim Electronics
Lub hwj chim Electronics
Lub hwj chim Electronics
Lub hwj chim Electronics
Lub hwj chim Electronics
Lub hwj chim Electronics

Lub zog siv los yog lub siab tam sim no (8A) SMPS (Hloov-Hom-Fais Fab-Khoom) uas tawm 19V, uas kuv tau hmoov zoo tau txais dawb. Cov peev txheej zoo sib xws uas tuaj yeem siv tau suav nrog lub laptop them nyiaj lossis txawm tias hloov pauv nrog lub choj txuas hluav taws xob tag nrho.

Txhawm rau nres lub zog raug kos thaum tsis siv, Kev sib txuas Live tau txuas mus rau qhov hloov pauv ntawm lub vaj huam sib luag pem hauv ntej ntawm rooj plaub, thiab rov qab mus rau SMPS. Txij li cov ntaub ntawv yog hlau, Kuv txuas lub ntiaj teb tus pin rau lub hauv paus phaj nrog cov ntsia hlau.

Qhov DC tso tawm ntawm SMPS tau txuas nrog ib qib nqis DCDC Buck hloov pauv, qhov tso tawm uas tau mus rau qhov zoo thiab tsis zoo txuas ntawm lub vaj huam sib luag pem hauv ntej ntawm rooj plaub (ntawm shunt resistor ntawm cov duab digital).

Cov duab digital, nrog rau 5V hloov pauv (rau USB chaw nres nkoj) tau siv los ntawm 19V SMPS, vim qhov no yuav nyob tas li tsis muaj teeb meem dab tsi qhov hluav taws xob tso tawm tau teeb tsa.

Lub kiv cua computer 24V kuj tseem txuas rau SMPS ntawm MOSFET Circuit, uas txwv qhov tam sim no (thiab yog li qhov nrawm) ntawm tus kiv cua. NCO TSEG: Tam sim no txwv tsis pub siv hluav taws xob thiab MOSFET tsuas yog ua lub zog tiv thaiv. Nws tau ntxiv los txo qhov nrawm ntawm tus kiv cua thiab ntau lwm yam kev siv hluav taws xob (txawm tias LM317 raws li Circuit Court) tej zaum yuav ua haujlwm zoo dua li kuv siv, tab sis kuv tuaj yeem suav nrog yog tias ib tus neeg xav tau.

Kauj Ruam 2: Tswj Cov Khoom Siv Hluav Taws Xob thiab Cov Hluav Taws Xob

Tswj Cov Khoom Siv Hluav Taws Xob thiab Cov Hluav Taws Xob
Tswj Cov Khoom Siv Hluav Taws Xob thiab Cov Hluav Taws Xob

Cov ntsuas ntsuas digital yuav tsum tau txuas rau hauv kab nrog lub davhlau ya nyob twg tsis zoo kom nkag siab txog tam sim no thiab lwm lub xov hlau mus rau qhov dav dav tso tawm kom ntsuas qhov tso zis hluav taws xob, raws li qhia hauv daim duab saum toj no.

Txhawm rau kho qhov hluav taws xob tso tawm, 50kOhm lub lauj kaub rau ntawm 15A cov khoom hloov pauv tau hloov pauv los ntawm qhov ntsuas ntsuas ib leeg tig lub zog potentiometer uas tau txuas mus rau rooj plaub pem hauv ntej los ntawm kab hlua. Ib sab ntawm lub zog ntsuas tau txuas nrog 2kOhm potentiometer hauv kev sim kom muaj "lub suab zoo" pob qhov hluav taws xob tab sis raws li tau tham tom qab, qhov no tsis tshua muaj siv.

Qhov tsis zoo ntawm kev siv lub pob hloov pauv yog tias qhov hluav taws xob tso tawm tau txwv rau kwv yees li 1V tsawg dua li qhov hluav taws xob tawm tswv yim, tab sis lub zog hluav taws xob tiv thaiv tau sib phim rau qhov siab tshaj plaws qhov hluav taws xob (hauv qhov no max. Input voltage = 30V). Qhov no txhais tau tias yog tias koj muab lub pob hloov pauv nrog qhov hluav taws xob zoo hauv qab qhov siab tshaj plaws qhov hluav taws xob, lub hwj chim yuav muaj thaj tsam tuag - qhov twg tig lub pob qhov rooj tsis hloov qhov hluav taws xob. Txhawm rau kov yeej qhov no, muaj ob txoj kev xaiv:

1) Siv kev sib koom ua ke Buck/Boost Converter uas yog nce qib lossis nqis qis cov tswv yim hluav taws xob rau txhua yam uas xav tau - qhov kev xaiv no yuav zoo tshaj rau qhov muaj qhov hluav taws xob loj tso tawm ntau qhov uas tsis muaj kev ywj pheej los ntawm (tsis txwv los ntawm) qhov hluav taws xob nkag.

2) Xaiv lub hwj chim uas muaj zog tiv thaiv uas txo thaj tsam tuag mus rau qib uas lees paub - qhov no yog qhov kev xaiv pheej yig tshaj tab sis tsuas yog txo thaj tsam tuag (uas nce qhov kev daws teeb meem raws li qhov tshwm sim) yog li cov zis hluav taws xob tseem raug txwv rau qee yam hauv qab qhov hluav taws xob input.

Kuv mus nrog qhov kev xaiv 2 raws li kuv twb muaj 15A hloov pauv phaib thiab tsis xav tos ntau qhov kom tuaj txog ntawm Suav teb. Raws li qhov yuav tsum tau muaj zog tiv thaiv tsis tau ze rau tus qauv tus nqi, Kuv muab lub zog tiv thaiv hla lub dav hlau sab nrauv ntawm lub hwj chim, ua kom txo tau qhov tsis kam mus rau qhov xav tau.

Kauj Ruam 3: Rooj plaub

Rooj plaub
Rooj plaub
Rooj plaub
Rooj plaub
Rooj plaub
Rooj plaub

Tam sim no rau qhov lom zem thiab txaus siab - ua rooj plaub. Koj tuaj yeem siv txhua yam koj xav tau rau qhov no; ntoo, MDF, yas, hlau, lossis luam 3D tag nrho yog tias koj xav tau tiag tiag. Kuv mus nrog hlau thiab yas raws li kuv nyiam tshaj plaws nrog cov ntaub ntawv no thiab lawv zoo nkauj ua ke (thov txim cov neeg txhawb siab).

Kuv muaj tus nqi zoo ntawm cov ntaub ntawv tsis xeb hlau yog li lub hau npog tau ua nrog qhov no. Cov vaj huam sib luag pem hauv ntej thiab nraub qaum tau ua los ntawm cov yas (acrylic nyob rau pem hauv ntej, tsis paub yas yas zom zaws tom qab) thiab lub hauv paus phaj tau ua los ntawm cov ntawv hlau los ntawm lub TV sawv ntsug.

Lub hauv paus tau txiav kom dav me ntsis thiab ntev dua li SMPS thiab qhov tau raug drilled hauv 4 lub ces kaum qhov twg SMPS cov ntaub ntawv khawm txuas tau siv los nyob (raws li ib nrab ntawm rooj plaub tau raug tshem tawm rau cov xov hlau thiab cua sov zoo dua).

Cov qhov no tau siv nrog M4 kais kom lub tshuab ntsia hlau tuaj yeem siv txhawm rau txhim kho SMPS rau lub hauv paus, nrog rau cov hlau tsis muaj steel txoj cai kaum daim phiaj uas tau siv los txuas lub hauv paus rau cov hlau tsis muaj hau thiab lub vaj huam sib luag tom qab. Ob lub qhov zoo sib xws tau raug laum thiab kais los tuav lub vaj huam sib luag pem hauv ntej nrog rau yas yas lub kaum sab xis uas tau siv lub sijhawm no (vim qhov sib thooj ntawm kev sib txuas fais fab).

Cov vaj huam sib luag pem hauv ntej thiab nraub qaum tau cim tawm thiab drilled qhov xav tau, tom qab ntawd daim ntawv tau txiav thiab txhais tes xa mus rau qhov ntev, suav nrog cov qhov sib txawv rau qhov tso saib, USB chaw nres nkoj thiab lub zog txuas hluav taws xob nyob tom qab.

Lub hau loj tau cim tawm ntawm 0.8mm SS cov ntawv thiab txiav kom loj nrog lub kaum ntse ntse sib tsoo, suav nrog qhov chaw nres nkoj nyob rau sab rau cua nkag. Qhov rau sab thiab sab saum toj tau cim thiab ua ntej ua ntej khoov, tab sis txij li thaum kuv tsis muaj daim ntawv hlau nres (tseem) cov khoov kuv tau tswj kom tau txais lub vojvoog loj rau lawv. Raws li kuv tau suav rau lub vojvoog me me rau lub qhov, Kuv hammered cov npoo tiv thaiv qee lub kaum sab xis hlau nyob rau hauv lwm yam kom tau txhua yam kom ua kab kom raug - qhov no qhia qee qhov "tus yam ntxwv" rau hauv daim thiab ua kom txhua tus paub tias nws yog qhov tshwj xeeb …

Txhua yam tau sib sau ua ke nrog M4 tshuab ntsia hlau, lossis kua nplaum rau qhov uas tsis xav tau hloov pauv. Kuv xav tias nws yog ib qho tseem ceeb los tsim cov khoom nrog kev ua haujlwm tau zoo hauv siab.

Kauj ruam 4: Txheeb xyuas

Ntsuam xyuas
Ntsuam xyuas

Tom qab sib sau ua ke, ntsuas thiab siv ntau lub hlis, Kuv pom 2K lub zog ntsuas rau qhov "ua kom zoo" ua haujlwm tau nrov nrov (mus qhib Circuit Court qee zaum thaum tig). Qhov no tsis tuaj yeem lees txais vim nws ua rau cov zis hluav taws xob dhia tsis tau xav txog, thiab yog li kuv tsuas yog tig 2k lauj kaub rau nws txoj haujlwm yam tsawg kawg yog li nws tsis cuam tshuam nrog lub lauj kaub hloov pauv loj. Kev ntsuas lub zog zoo yog qhov yuav tsum muaj rau cov haujlwm zoo li no.

Kuv vam tias qhov no yuav pab qee leej ntawm koj ib yam li lwm tus tau pab kuv. Nov tsuas yog ib txoj hauv kev ntawm ntau thiab kuv txhawb kom muaj lus nug yog xav tau cov ntaub ntawv ntxiv, ntawm no lossis ntawm kuv tus youtube video. Ua tsaug ntau ntau thiab ua tau zoo yog tias koj tau ua tiav qhov no, zoo siab ua!

Pom zoo: