Superb Lab Power Supply: 15 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29

Los ntawm kuv qhov kev pom ib txoj hauv kev zoo tshaj los pib ua hluav taws xob yog tsim koj tus kheej lub chaw kuaj fais fab. Hauv cov lus qhia no kuv tau sim sau tag nrho cov kauj ruam tsim nyog kom txhua tus tuaj yeem tsim nws tus kheej.

Txhua qhov ntawm kev sib dhos yog ncaj qha txiav txim siab hauv digikey, ebay, amazon lossis aliexpress tshwj tsis yog lub ntsuas hluav taws xob. Kuv tau ua tus txheej txheem ntsuas qhov ntsuas hluav taws xob rau Arduino tuaj yeem ntsuas txog 36V - 4A, nrog kev daws teeb meem ntawm 10mV - 1mA uas tuaj yeem siv rau lwm txoj haujlwm kuj.

Lub zog fais fab muaj cov yam ntxwv hauv qab no:

• Nominal Voltage: 24V.
• Nominal Tam Sim No: 3A.
• Cov zis hluav taws xob Ripple: 0.01% (Raws li qhov tshwj xeeb ntawm cov khoom siv hluav taws xob xa hluav taws xob).
• Kev ntsuas qhov ntsuas hluav taws xob: 10mV.
• Kev ntsuas ntsuas tam sim no: 1mA.
• CV thiab CC hom.
• Tshaj tiv thaiv tam sim no.
• Tshaj tiv thaiv hluav taws xob.

Kauj Ruam 1: Tshooj thiab Cov Kab Xaim

Sib nrug los ntawm Cov Duab, Kuv tau txuas cov ntaub ntawv WiringAndParts.pdf rau theem no. Daim ntawv piav qhia txhua qhov ua haujlwm, tsis suav nrog kev xaj xaj, ntawm lub rooj zaum lub hwj chim thiab yuav txuas lawv li cas.

Cov hluav taws xob hluav taws xob tau dhau los ntawm IEC lub vaj huam sib luag txuas (10) uas muaj lub hauv paus ruaj khov, muaj lub zog hloov pauv hauv lub vaj huam sib luag pem hauv ntej (11) uas ua txhaum lub Circuit Court tsim los ntawm IEC txuas mus rau lub tshuab hloov pauv (9).

Tus hloov pauv (9) tso tawm 21VAC. 21 VAC ncaj qha mus rau lub zog hluav taws xob (8). Qhov tso tawm ntawm lub zog hluav taws xob Circuit Court (8) mus ncaj qha rau IN qhov dav ntawm lub ntsuas hluav taws xob (5).

OUT lub davhlau ya nyob twg ntawm lub ntsuas hluav taws xob (5) txuas nrog ncaj qha rau cov ntawv cog lus zoo thiab tsis zoo (4) ntawm lub zog xa khoom. Lub ntsuas hluav taws xob ntsuas ntsuas ob qhov hluav taws xob thiab tam sim no (sab siab), thiab tuaj yeem pab lossis lov tes taw kev sib txuas ntawm sab hauv thiab tawm.

Cables, feem ntau siv cov hlua uas koj muaj hauv tsev. Koj tuaj yeem tshawb xyuas Is Taws Nem rau qhov ntsuas AWG uas tsim nyog rau 3A tab sis, feem ntau txoj cai ntiv tes xoo ntawm 4A/mm² ua haujlwm, tshwj xeeb rau cov xov hluav taws xob luv. Rau cov kab hluav taws xob txuas hluav taws xob (120V lossis 230V) siv cov kab hluav taws xob tsim nyog, 600V hauv Asmeskas, 750V hauv Tebchaws Europe.

Cov kis dhau transistor ntawm cov khoom siv hluav taws xob Circuit Court (Q4) (12) tau xaim hluav taws xob tsis txhob siv cov khoom siv los tso cai yooj yim teeb tsa lub rhaub dej kub (13).

Thawj 10K lub zog hluav taws xob tau hloov pauv nrog ntau lub qauv (7), qhov no ua rau muaj peev xwm hloov kho qhov tseeb ntawm qhov hluav taws xob tso tawm thiab tam sim no.

Arduino pawg thawj coj saib ntawm lub ntsuas hluav taws xob tau siv hluav taws xob txuas hluav taws xob (6) uas los ntawm cov khoom siv hluav taws xob (8). Pawg tswj fais fab tau hloov kho kom tau 12V tsis yog 24V.

Tus pin zoo ntawm CC LED los ntawm cov khoom siv hluav taws xob tau txuas mus rau hom txuas ntawm Meter Circuit. Qhov no tso cai rau nws kom paub thaum twg los tso saib CC lossis CV hom.

Muaj ob lub khawm txuas rau lub ntsuas hluav taws xob (3). Lub kaw khawm "liab" tshem tawm qhov hluav taws xob tso tawm. Lub On khawm "dub" txuas qhov hluav taws xob tso tawm thiab rov pib dua OV lossis OC yuam kev.

Muaj ob lub potentiometers txuas rau lub ntsuas hluav taws xob (2). Ib qho teeb tsa OV qhov pib thiab lwm qhov teeb tsa OC qhov pib. Cov potentiometers no tsis tas yuav siv ntau zaus, Kuv tau siv lub zog qub qub los ntawm cov khoom siv hluav taws xob.

20x4 I2C alphanumeric LCD (1) yog txuas rau lub ntsuas hluav taws xob. Nws qhia cov ntaub ntawv tam sim no hais txog qhov hluav taws xob tso tawm, tawm tam sim no, OV teeb tsa, OC teeb tsa thiab xwm txheej.

Kauj Ruam 2: Cov Khoom Siv Hluav Taws Xob

Kuv yuav cov khoom siv no uas ntsuas 30V, 3A:

Kuv txuas cov lus qhia ua ke uas kuv pom hauv Is Taws Nem thiab cov duab ntawm Schematic. Luv luv:

Lub Circuit Court yog ib qho khoom siv hluav taws xob tawm.

Q4 thiab Q2 yog Darlington array thiab tsim cov qauv dhau transistor, nws tau tswj hwm los ntawm lub tshuab ua haujlwm kom tswj tau qhov hluav taws xob thiab tam sim no ntawm tus nqi xav tau.

Tam sim no ntsuas los ntawm R7, ntxiv qhov kev tiv thaiv no nyob rau sab qis ua rau hauv av ntawm cov khoom siv hluav taws xob hauv Circuit Court thiab cov av tso tawm sib txawv.

Lub voj voog tsav LED uas tig rau thaum lub hom tam sim no nyob.

Lub Circuit Court suav nrog Graeth choj txhawm rau kho qhov AC input. AC cov tswv yim kuj tseem siv los tsim qhov tsis zoo cais qhov siab kom mus txog 0V.

Tsis muaj kev tiv thaiv cua sov hauv Circuit Court, yog li qhov tsim nyog qhov ntsuas ntawm lub rhaub dej kub tseem ceeb heev.

Lub Circuit Court muaj 24V tso tawm rau tus kiv cua "yeem". Kuv tau hloov 7824 tus tswj hwm nrog tus tswj hwm 7812 kom tau 12V rau Arduino pawg thawj coj saib ntawm lub ntsuas hluav taws xob.

Kuv tsis tau sib sau ua ke LED, hloov kuv tau siv lub teeb liab no los qhia lub ntsuas hluav taws xob yog tias lub zog siv hauv CC lossis CV.

Kauj Ruam 3: Cov Khoom Siv Hluav Taws Xob Ua Ke

Hauv qhov kev sib tw no txhua qhov yog hla qhov. Feem ntau koj yuav tsum pib nrog qhov tsawg tshaj plaws.

• Solder tag nrho cov resistors.
• Solder cov seem ntawm cov khoom siv.
• Siv cov pliers thaum khoov diodes ua kom tsis txhob tawg lawv.
• Khoov tus coj ntawm DIP8 TL081 op amps.
• Siv cov cua sov sib xyaw ua ke thaum sib dhos cov cua sov.

Kauj Ruam 4: Meter Circuit Design thiab Schematic

Lub Circuit Court yog daim thaiv rau Arduino UNO sib xws nrog R3 cov qauv. Kuv tau tsim nws nrog cov khoom muaj nyob ntawm digikey.com.

Qhov tso tawm ntawm vkmaker cov khoom siv hluav taws xob txuas hluav taws xob tau txuas nrog IN lub davhlau ya nyob twg thaiv thiab OUT lub davhlau ya nyob twg thaiv ncaj qha mus rau cov lus khi ntawm lub hwj chim.

R4 yog shunt resistor hauv txoj kev tsheb nqaj hlau muaj txiaj ntsig 0.01ohm, nws muaj qhov hluav taws xob poob qis piv rau qhov tam sim no oputput. Qhov sib txawv voltage R4 yog txuas ncaj qha rau RS+ thiab RS- pins ntawm IC1. Qhov siab tshaj qhov poob qis ntawm qhov tso tawm tam sim no yog 4A*0.01ohm = 40mV.

R2, R3 thiab C2 tsim lub ~ 15Hz lim kom tsis txhob muaj suab nrov.

IC1 yog ib sab siab tam sim no amplifier: MAX44284F. Nws yog nyob rau hauv kev ua haujlwm txiav ua haujlwm uas ua rau nws muaj peev xwm tau txais cov hluav taws xob qis heev, 10uV ntawm qhov siab tshaj ntawm 25ºC. Ntawm 1mA qhov poob qis hauv R4 yog 10uV, sib npaug qhov siab tshaj tawm qhov hluav taws xob.

MAX44284F muaj qhov nce ntawm 50V/V yog li tso zis qhov hluav taws xob, SI teeb liab, ntawm qhov siab tshaj tam sim no ntawm 4A, yuav muaj txiaj ntsig 2V.

Qhov siab tshaj plaws hom kev siv hluav taws xob ntawm MAX44284F yog 36V, qhov no txwv qhov ntsuas hluav taws xob ntau txog 36V.

R1 thiab C1 tsim lub lim los tiv thaiv 10KHz thiab 20KHz cov cim tsis xav tau uas tuaj yeem tshwm sim vim yog kev tsim vaj tsev ntawm lub cuab yeej, nws tau pom zoo hauv nplooj 12 ntawm cov ntawv teev npe.

R5, R6 thiab R7 yog qhov siab impedance voltage faib ntawm 0.05V/V. R7 nrog C4 tsim ~ 5Hz lim kom tsis txhob muaj suab nrov. Qhov faib hluav taws xob tau muab tso tom qab R4 txhawm rau ntsuas qhov hluav taws xob tso tawm tiag tom qab qhov hluav taws xob poob.

IC3 yog MCP6061T ua haujlwm lub zog ua haujlwm, nws ua rau tus neeg ua haujlwm hluav taws xob cais tawm qhov siab qhov cuam tshuam hluav taws xob faib. Qhov siab tshaj plaws tawm tswv yim tam sim no yog 100pA ntawm chav sov, qhov tam sim no tsis muaj qhov cuam tshuam rau qhov cuam tshuam ntawm qhov faib hluav taws xob. Ntawm 10mV qhov hluav taws xob ntawm qhov nkag ntawm IC3 yog 0.5mV, ntau dua li nws cov hluav taws xob tawm hluav taws xob: 150uV ntawm qhov siab tshaj plaws.

Qhov tso tawm ntawm IC3, SV teeb liab, muaj qhov hluav taws xob ntawm 2V ntawm 40V cov khoom siv hluav taws xob (qhov siab tshaj plaws tuaj yeem yog 36V vim yog IC1). SI thiab SV cov cim tau txuas rau IC2. IC2 yog MCP3422A0, dual channel I2C sigma delta ADC. Nws muaj qhov ntsuas hluav taws xob sab hauv ntawm 2.048V, xaiv qhov nce ntawm 1, 2, 4, lossis 8V/V thiab xaiv tus lej ntawm 12, 14, 16 lossis 18bits.

Rau qhov kev sib tw no kuv tab tom siv qhov nce ntawm 1V/V thiab kev daws teeb meem ruaj khov ntawm 14bits. SV, thiab SI cov cim tsis sib txawv yog li tus lej tsis zoo ntawm txhua qhov kev tawm tswv yim yuav tsum tau muab pov rau hauv av. Qhov ntawd txhais tau tias cov naj npawb ntawm LSBs muaj yuav yog ib nrab.

Raws li qhov ntsuas hluav taws xob sab hauv yog 2.048V thiab tus lej zoo ntawm LSB yog 2^13, ADC qhov tseem ceeb yuav yog: 2LSB rau txhua 1mA hauv qhov tam sim no thiab 1LSB rau txhua 5mV thaum qhov hluav taws xob.

X2 yog qhov txuas rau ON khawm khawm. R11 tiv thaiv Arduino tus pin nkag los ntawm kev tso tawm zoo li qub thiab R12 yog qhov rub tawm qhov ua rau 5V thaum tsis muaj kev nyuaj siab thiab ~ 0V thaum nias. I_ON teeb liab

X3 yog qhov txuas rau OFF khawm khawm. R13 tiv thaiv Arduino tus pin nkag los ntawm kev tso tawm zoo li qub thiab R14 yog qhov rub tawm qhov tawm tsam uas ua rau 5V thaum tsis muaj kev nyuaj siab thiab ~ 0V thaum nias. I_OFF teeb liab.

X5 yog qhov txuas rau kev tiv thaiv overcurrent teeb taw tes potentiometer. R15 tiv thaiv Arduino tus pin nkag los ntawm kev tshem tawm zoo li qub thiab R16 tiv thaiv txoj kab +5V los ntawm luv Circuit Court. A_OC teeb liab.

X6 yog qhov txuas rau kev tiv thaiv overvoltage teeb taw tes potentiometer. R17 tiv thaiv Arduino tus pin nkag los ntawm kev tshem tawm zoo li qub thiab R18 tiv thaiv txoj kev +5V kev tsheb nqaj hlau los ntawm kev luv luv. A_OV signal.

X7 ins ib qho kev tawm tswv yim sab nraud uas tau siv kom tau txais qhov tam sim no lossis qhov hluav taws xob tsis tu ncua ntawm lub zog siv. Raws li nws tuaj yeem muaj ntau qhov hluav taws xob tawm tswv yim nws tau tsim los siv Q2, R19, thiab R20 ua qhov hloov pauv hluav taws xob. I_MOD teeb liab.

X4 yog qhov txuas ntawm LCD sab nraud, nws tsuas yog txuas ntawm 5V txoj kev tsheb nqaj hlau, GND thiab I2C SCL-SDA kab.

I2C kab, SCL thiab SDA, tau sib koom los ntawm IC2 (ADC) thiab sab nrauv LCD, lawv raug rub los ntawm R9 thiab R10.

R8 thiab Q1 tsim tus neeg tsav tsheb ntawm K1 relay. K1 txuas qhov hluav taws xob tso tawm thaum lub zog. Nrog 0V hauv -CUT qhov kev xa tawm tsis muaj zog, thiab nrog 5V hauv -CUT qhov kev xa tawm tau siv. D3 yog lub log pub dawb pub rau txhawm rau tshem tawm qhov tsis zoo thaum txiav qhov hluav taws xob ntawm cov xa hluav taws xob.

Z1 yog Kev Tiv Thaiv Kev Tiv Thaiv Ib Ntus nrog lub zog ntawm 36V.

Kauj Ruam 5: Meter Circuit PCB

Kuv tau siv cov dawb version ntawm Eagle rau ob qho tib si schematic thiab PCB. PCB yog 1.6 tuab ob tog tsim tsim uas muaj lub dav hlau sib cais rau kev sib piv thiab cov digital Circuit. Tus tsim yog yooj yim zoo nkauj. Kuv tau txais cov ntaub ntawv dxf los ntawm Is Taws Nem nrog rau qhov qhia txog qhov ntev thiab txoj haujlwm ntawm Arduino tus pinhead txuas.

Kuv tabtom tshaj tawm cov ntaub ntawv hauv qab no:

• Thawj cov ntaub ntawv dav dawb hau: 00002A.brd thiab 00002A.sch.
• Gerber cov ntaub ntawv: 00002A.zip.
• Thiab BOM (Cov Nqi Ntawm Cov Khoom) + phau ntawv qhia ua ke: BOM_Assemby.pdf.

Kuv xaj PCB mus rau PCBWay (www.pcbway.com). Tus nqi tau qis kawg nkaus: $ 33, suav nrog kev xa khoom, rau 10 lub laug cam uas tuaj txog tsawg dua ib lub lim tiam. Kuv tuaj yeem faib cov laug cam nrog kuv cov phooj ywg lossis siv lawv hauv lwm qhov haujlwm.

Muaj qhov ua yuam kev hauv kev tsim, Kuv tso ntawm kev kov lub silkscreen hauv 36V cov lus dab neeg.

Kauj Ruam 6: Teeb Meem Circuit Court

Txawm hais tias feem ntau yog SMT hauv pawg no, nws tuaj yeem sib sau ua ke nrog cov hlau tsis tu ncua. Kuv tau siv Hakko FX888D-23BY, ntxig ntxig ntxig, qee qhov siv tshuaj txhuam hniav, thiab 0.02 cov laug.

• Tom qab tau txais cov khoom qhov zoo tshaj plaws lub tswv yim yog txheeb lawv, Kuv tau txheeb cov capacitors thiab resistors thiab muab cov hnab ntim.
• Ua ntej sib sau ua ke qhov me me, pib nrog resistors thiab capacitors.
• Sib dhos R4 (0R1) pib nrog ib ntawm plaub tus coj.
• Siv cov seem seem, feem ntau rau SOT23, SOIC8, thiab lwm yam. Qee zaum cov laug tuaj yeem koom nrog ntau cov ntaub qhwv ua ke, hauv qhov no koj tuaj yeem siv cov dej ntws thiab cov kua nplaum los tshem cov laug thiab ntxuav qhov khoob.
• Sib sau ua ke tas los ntawm cov khoom sib dhos.

Kauj Ruam 7: Arduino Code

Kuv tau txuas cov ntaub ntawv DCmeter.ino. Txhua qhov haujlwm tau suav nrog hauv cov ntawv no sib nrug los ntawm lub tsev qiv ntawv LCD "LiquidCrystal_I2C". Cov cai tau hloov kho tau yooj yim, tshwj xeeb tshaj yog cov duab ntawm cov kev nce qib thiab cov lus pom.

Raws li txhua tus lej arduino nws muaj teeb tsa () ua haujlwm thawj zaug thiab lub voj () ua haujlwm tsis tu ncua.

Kev teeb tsa teeb tsa teeb tsa cov zaub, suav nrog cov ntawv tshwj xeeb rau kab kev ua tiav, suav nrog MCP4322 lub xeev lub tshuab thiab teeb tsa kev xa tawm thiab LCD teeb pom kev zoo thawj zaug.

Tsis muaj kev cuam tshuam, hauv txhua qhov rov ua dua lub voj ua haujlwm ua cov theem hauv qab no:

Tau txais tus nqi ntawm txhua qhov kev tawm tswv yim I_ON, I_OFF, A_OC, A_OV thiab I_MOD. I_ON, thiab I_OFF raug nthuav tawm. A_OC thiab A_OV tau nyeem ncaj qha los ntawm Arduino's ADC thiab lim dej siv qhov nruab nrab ntawm peb qhov kev ntsuas zaum kawg. I_MOD tau nyeem ncaj qha yam tsis muaj kev sib cav.

Tswj lub sijhawm tig ntawm lub teeb pom kev.

Ua MCP3422 lub xeev lub tshuab. Txhua 5ms nws pov npav MCP3422 kom pom tias qhov kev hloov pauv zaum kawg tiav thiab yog li nws pib qhov tom ntej, ua tiav tau txais tus nqi ntawm qhov hluav taws xob thiab tam sim no tam sim no ntawm cov zis.

Yog tias muaj qhov txiaj ntsig tshiab ntawm qhov hluav taws xob tso tawm thiab tam sim no los ntawm MCP3422 lub xeev lub tshuab, hloov kho cov xwm txheej ntawm lub zog hluav taws xob raws li kev ntsuas thiab hloov kho cov zaub.

Muaj ob qhov tsis siv rau kev hloov kho cov zaub sai dua.

Cov hauv qab no tuaj yeem hloov kho rau lwm cov haujlwm:

MAXVP: Qhov siab tshaj plaws OV hauv 1/100V chav nyob.

MAXCP: OC siab tshaj hauv 1/1000A units.

DEBOUNCEHARDNESS: Tus lej rov ua dua nrog tus nqi sib law los kwv yees nws yog qhov raug rau I_ON thiab I_OFF.

LCD4x20 lossis LCD2x16: Kev sib sau ua ke rau 4x20 lossis 2x16 zaub, 2x16 kev xaiv tseem tsis tau ua tiav.

Kev siv 4x20 qhia cov ntaub ntawv hauv qab no: Hauv thawj kab ntawm qhov hluav taws xob thiab qhov tso tawm tam sim no. Hauv kab thib ob qhov kev nce qib uas sawv cev rau tus nqi tso tawm txheeb ze rau kev tiv thaiv teeb tsa taw tes rau ob qho tib si voltage thiab tam sim no. Hauv kab thib peb qhov teeb tsa tam sim no rau kev tiv thaiv overvoltage thiab tiv thaiv overcurrent. Hauv kab thib plaub qhov xwm txheej tam sim no ntawm lub zog xa khoom: CC ON (Nyob rau hauv hom tam sim no), CV ON (On nyob rau hauv qhov hluav taws xob hom), OFF, OV OFF (Tawm qhia tias lub hwj chim tau tawm mus vim yog OV), OC OFF (Tawm qhia tias lub hwj chim tau ploj mus vim yog OC).

Kuv tau ua cov ntaub ntawv no los tsim cov cim ntawm qhov kev hloov pauv: https://drive.google.com/open?id=1ych5bmo9lfsu44W …

Kauj Ruam 8: Teeb Meem Kub

Kev siv lub rhaub dej kub kom yog yog qhov tseem ceeb heev hauv kev sib dhos no vim tias lub tshuab hluav taws xob tsis yog tiv thaiv tus kheej tiv thaiv kom sov.

Raws li cov ntaub ntawv 2SD1047 transistor muaj kev sib tshuam rau cov ntaub ntawv tiv thaiv cua sov ntawm Rth-j, c = 1.25ºC/W.

Raws li lub vev xaib no lub laij lej: https://www.myheatsinks.com/calculate/thermal-resi… qhov cua sov ua haujlwm ntawm lub rhaub dej kub kuv tau yuav yog Rth-hs, cua = 0.61ºC/W. Kuv yuav xav tias tus nqi tiag yog qis dua vim tias lub rhaub dej kub txuas nrog cov ntaub ntawv thiab cov cua sov tuaj yeem yaj tau li ntawd ib yam.

Raws li tus muag khoom hauv eBay, cov cua sov ua kom sov ntawm daim ntawv cais kuv tau yuav yog K = 20.9W/(mK). Nrog rau qhov no, nrog tuab ntawm 0.6mm, qhov kub tsis kam yog: R = L/K = 2.87e-5 (Km2)/W. Yog li, cov ntaub ntawv tiv thaiv cua sov kom rhaub dej kub ntawm qhov sib cais rau 15mm x 15mm nto ntawm 2SD1047 yog: Rth-c, hs = 0.127ºC/W. Koj tuaj yeem nrhiav cov lus qhia rau cov lej no ntawm no:

Qhov siab tshaj plaws tso cai rau 150ºC hauv kev sib tshuam thiab 25ºC hauv huab cua yog: P = (Tj-Ta) / (Rth-j, c + Rth-hs, cua + Rth-c, hs) = (150-25) / (1.25 + 0.61 + 0.127) = 63W.

Qhov hluav taws xob tso tawm ntawm tus hloov pauv yog 21VAC ntawm kev thauj khoom tag nrho, uas ua rau nruab nrab ntawm 24VDC tom qab diodes thiab lim. Yog li qhov siab tshaj plaws yuav yog P = 24V * 3A = 72W. Coj mus rau hauv tus account tias cov cua sov tsis kam ntawm lub rhaub dej kub qis dua me ntsis vim cov hlau thaiv lub cev tawg, Kuv tau xav tias nws txaus.

Kauj Ruam 9: Cov ntaub ntawv kaw

Cov ntaub thaiv npog, suav nrog kev xa khoom, yog qhov kim tshaj plaws ntawm cov khoom siv hluav taws xob. Kuv pom tus qauv no hauv ebay, los ntawm Cheval, Thay chaw tsim khoom: https://www.chevalgrp.com/standalone2.php. Qhov tseeb, tus muag khoom ebay yog los ntawm Thaib teb.

Lub npov no muaj txiaj ntsig zoo rau nyiaj thiab tuaj txog zoo nkauj heev.

Kauj ruam 10: Mechanizing Pem Hauv Ntej Vaj Huam Sib Luag

Qhov kev xaiv zoo tshaj plaws rau kev siv tshuab thiab kos duab rau ntawm lub vaj huam sib luag pem hauv ntej yog siv lub router zoo li no https://shop.carbide3d.com/products/shapeoko-xl-k… lossis ua lub yas yas npog nrog PONOKO, piv txwv li. Tab sis raws li kuv tsis muaj lub router thiab kuv tsis xav siv nyiaj ntau kuv txiav txim siab ua nws txoj kev qub: Txiav, txiav nrog cov ntawv thiab siv cov ntawv xa mus rau cov ntawv.

Kuv tau txuas ib daim ntawv Inkscape nrog lub stencil: frontPanel.svg.

• Txiav lub stencil.
• Npog lub vaj huam sib luag nrog cov xim pleev xim rau.
• Kaw lub stencil rau tus neeg pleev xim kab xev. Kuv tau siv daim nplaum lo.
• Kos rau txoj haujlwm ntawm kev xyaum.
• Laum qhov tso cai rau pom kev ntxhov siab lossis daws cov hniav tuaj rau hauv kev txiav sab hauv.
• Txiav txhua daim duab.
• Txiav nrog Cov Ntawv. Nyob rau hauv cov ntaub ntawv ntawm cov qhov puag ncig rau lub hwj chim thiab cov lus sib dhos nws tsis tas yuav tsum siv lub saw ua ntej ua ntawv thov. Nyob rau hauv cov ntaub ntawv ntawm lub qhov tso tawm cov ntawv txiav yuav tsum yog qhov ua tau zoo tshaj plaws vim tias cov ntug no yuav pom.
• Tshem tus stencil thiab tus neeg pleev xim daim kab xev.
• Kos qhov chaw ntawm cov ntawv nrog tus xaum.
• Hloov cov ntawv.
• Tshem cov xaum cim nrog tus lwv.

Kauj ruam 11: Mechanizing Back Pannel

• Kos qhov chaw ntawm lub rhaub dej kub, suav nrog lub qhov rau lub zog transistor thiab txoj haujlwm tuav tuav.
• Kos lub qhov rau nkag mus rau lub rhaub dej kub los ntawm sab hauv ntawm lub hwj huam hluav taws xob thaiv, Kuv tau siv cov insulator ua qhov siv.
• Kos lub qhov rau IEC txuas.
• Laum cov contour ntawm cov duab.
• Laum qhov rau cov ntsia hlau.
• Txiav cov duab nrog txiav pliers.
• Txiav cov duab nrog cov ntawv.

Kauj Ruam 12: Sib Sau Ua Ntej Vaj Huam Sib Luag

• Tshem tawm cov xov hluav taws xob ntau ntawm cov khoom seem kom tau cov xov hlau.
• Ua kom lub rooj sib txoos LCD sib txuas I2C mus rau qhov sib luag.
• Tsim "molex txuas", xaim thiab cov raj sib dhos ua ke rau: potentiometers, laub khawm thiab LCD. Tshem tawm ib qho protuberance hauv potentiometers.
• Tshem lub nplhaib ntiv tes ntawm pob qhov rooj.
• Txiav tus pas nrig ntawm lub zog rau qhov loj ntawm lub pob qhov rooj. Kuv tau siv ib daim duab los ua ib qho ntsuas.
• Muab cov laub khawm thiab khawm fais fab.
• Sib sau cov potentiometers thiab teeb tsa cov pob qhov rooj, ntau lub zog potentiometers kuv tau yuav muaj ¼ nti ncej thiab ib qho qauv ua qauv muaj 6mm ncej. Kuv tau siv cov tshuab ntxhua khaub ncaws los ua qhov sib txuas kom txiav qhov nrug ntawm cov potentiometers.
• Ntsia cov hlua khi.
• Muab ob daim kab xev tso rau hauv LCD thiab lo rau ntawm lub vaj huam sib luag.
• Muab cov xov hlau zoo thiab tsis zoo tso rau ntawm kab lus sib dhos.
• Sib sau ua ke GND lub davhlau ya nyob twg hauv daim ntawv cog lus ntsuab.

Kauj Ruam 13: Sib Sau Ua Ke Rov Qab

• Ntsia lub heatsink mus rau lub vaj huam sib luag tom qab, txawm hais tias xim yog cov cua sov cais, Kuv tau muab cov roj heatsink los ua kom cov cua sov hloov pauv los ntawm lub rhaub dej kub mus rau lub thawv.
• Sib dhos IEC txuas.
• Muab cov nplaum tso rau siv cov khoom siv hluav taws xob hauv Circuit.
• Ntsia lub hwj chim transistor thiab cov insulator, yuav tsum muaj cov roj cua sov hauv txhua qhov chaw.
• Sib sau 7812 txhawm rau txhawb lub zog arduino, nws tab tom ntsib rooj plaub kom tso cua sov tawm mus, siv ib qho ntawm cov ntsia hlau uas tuav lub rhaub dej kub. Kuv yuav tsum tau siv lub tshuab ntxhua khaub ncaws zoo li no
• Hlau txuas lub zog hluav taws xob thiab 7812 rau lub zog hluav taws xob.

Kauj Ruam 14: Kev Sib Ntsib zaum kawg thiab thaiv

• Kos thiab laum lub qhov rau tus hloov pauv.
• Sib sau ua ke lub transformer.
• Muab cov ceg nplaum tso rau ntawm daim thaiv.
• Khaws lub DC meter Circuit Court siv cov nplaum nplaum.
• Khawb cov xim kom ntswj GND lug.
• Tsim cov hluav taws xob sib txuas hluav taws xob sib txuas, txhua qhov kev txiav tawm yog 3/16 "Faston. Kuv tau siv cov raj uas thim tau los cais cov lus txiav tawm.
• Txiav sab xub ntiag ntawm tus tuav lub thawv rau sab xis kom tau txais qhov chaw rau lub zog khawm.
• Txuas txhua cov xov hlau raws li phau ntawv qhia kev sib dhos.
• Txhim kho Fuse (1A).
• Muab cov hluav taws xob tso zis hluav taws xob (VO potentiometer), mus rau qhov tsawg kawg CCW thiab kho qhov tso tawm qhov hluav taws xob qhov ze tshaj plaws tau rau xoom volts siv ntau lub zog hloov kho lub zog hluav taws xob ntawm vkmaker lub zog xa hluav taws xob.
• Sib sau ua ke.

Kauj Ruam 15: Txhim Kho thiab Ua Haujlwm Ntxiv

Kev txhim kho

• Siv cov tshuab ntxhua khaub ncaws kom tsis txhob ntsia hlau kom xoob nrog kev co, tshwj xeeb yog kev co los ntawm kev hloov pauv.
• Xim lub vaj huam sib luag pem hauv ntej nrog cov kua roj vanish kom tiv thaiv cov ntawv kom raug tshem tawm.

Ua hauj lwm ntxiv:

• Ntxiv tus usb txuas zoo li no: https://www.ebay.com/itm/Switchcraft-EHUSBBABX-USB-… nyob rau tom qab vaj huam sib luag. Muaj txiaj ntsig zoo rau kev txhim kho cov cai yam tsis muaj kev sib dhos lossis ua kom ATE me me tswj hwm On Off functions, tau txais xwm txheej thiab ntsuas siv lub PC.
• Ua qhov 2x16 LCD sau ua ke ntawm cov lej.
• Ua kom muaj hluav taws xob hloov hluav taws xob tshiab, tsis txhob siv cov khoom siv vkmaker, nrog kev tswj digital ntawm cov zis hluav taws xob thiab tam sim no.
• Ua qhov kev ntsuas tsim nyog los qhia lub zog fais fab.

Thawj qhov khoom plig hauv Kev Sib Tw Fais Fab