Suab Nplaim Tawm Tswv Yim: 7 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:31

Los ntawm dandroidDan GoodFollow Ntau los ntawm tus sau:

Txog: Kuv nyiam kev tsim khoom. Khoom siv hluav taws xob, ntoo, hlau, zaub mov, thiab lwm yam Kuv tsim cov duab puab tsis muaj hlau thiab kuv nyiam daws txhua yam teeb meem me me ntawm txoj kev - CAD rau CNC, vuam, sib tsoo, txhuam, thiab txhua yam ntxiv … Ntau Txog dandroid »Cov lus qhia no qhia koj yuav tsim lub teeb tswj lub tshuab hluav taws xob li cas. Ntawm no kuv tau txhim kho cov duab puab tsis ruaj khov nrog lub tshuab hluav taws xob thiab lub tswm ciab. Tus hais lus ua rau tswm ciab tswm ciab thiab lub teeb los ntawm tswm ciab hloov pauv lub teeb liab rau tus hais lus. Huab cua ua rau muaj kev sib raug zoo ntawm tus hais lus thiab lub tswm ciab tsis ruaj khov, yog li nws thim rov qab ntawm ib nrab kev sib txawv hom. Qhov kev tsim thiab ua kom nrov nrov tsis yog qhov tsis tseem ceeb, tab sis nws tau ua los ntawm cov tsev yooj yim. Kuv yuav qhia koj li cas tsim lub teeb pom kev nrog CdS photoresistor, yooj yim op-amp preamp, oscillator nrog LM555 qub, thiab 5 watt lub zog siv nrog LM1875. Koj tuaj yeem ua nws yog tias koj ua raws cov lus qhia, Kuv mam sim piav qhia ntxaws.

Kauj Ruam 1: Cov Khoom Koj Xav Tau

Kuv siv cov khoom los ua qhov haujlwm no. Kuv nyiam kom tau txais cov khoom los ntawm Jameco thiab Radio Shack vim tias lawv yooj yim heev thiab kuv ua txhua yam ntawm feeb kawg. Koj tuaj yeem tau txais txhua yam los ntawm Digikey ib yam, lossis xijpeem koj nyiam cov khoom siv hluav taws xob yog, tsis muaj ib feem twg txawv txawv. Koj yuav xav tau: Tus hais lus. xov tooj cua, ib qho tseem ceeb thiab ib qho tso tseg. Kuv nyiam 22 gauge. Perfboard - Kuv nyiam daim npav naj npawb 276-150 los ntawm cov xov tooj cua, nws pheej yig thiab muaj txiaj ntsig zoo. Power mov - Kuv tsim qhov no nrog Txhais Tau Zoo 24V 1A phab ntsa wart los ntawm Jameco. Koj yuav xav tau ib qho ntawm qhov sib txuas sib txuas tseem yog tias koj tsis xav tau cov khoom xa ncaj qha mus rau pawg thawj coj saib. Cov khoom siv hluav taws xob - Koj tuaj yeem tau txais tag nrho cov no los ntawm Jameco. Resistors: 2.2 x11k x15.6k x210k x422k x333k x1100k x1200k x11M Suab Taper PotentiometerPhotoresistor (Kuv siv Jameco #CDS003-7001) Capacitors: 0.1uF x31uF x310uF x5100uF x32200uF x1Semiconductors: MC1458 x1 (Txhua lub hom phiaj dual op-amp zoo, cov no pheej yig) LM555 x1LM7805 x1LM1875 (ntxiv rau nws) Ib qho 5V Zener diode yog qhov zoo) 8-pin DIP qhov x 2 (DIPs nyuaj rau tshem tawm yog tias koj tshuab lawv tsis raug, zoo tshaj rau ntsaws lawv tsuas yog qhov xwm txheej. LM7805 thiab LM1875 nyob rau TO-220s, yooj yim rub tawm ntawm koj board yog tias tsim nyog..) Cov cuab yeej: Soldering Iron & solderPliers, cov hlua hlau, cov kab txiav kab pheeb ces kaum

Kauj ruam 2: Circuit Court

Nov yog lub voj voog peb yuav siv. Nws tau txais ib pawg ntawm qhov. Yog tias koj paub yuav tsim cov xov hluav taws xob li cas thiab tsis zoo li nyeem ib pawg ntawm cov khoom, koj tuaj yeem mus tom ntej thiab tsim qhov no. Yog tias koj tsis paub meej tias txhua feem ua dab tsi, txuas ntxiv nyeem! Power Supply Peb yuav khiav tag nrho ntawm 24V DC fais fab mov. Peb xav tau ntau qhov hluav taws xob kom tau txais cov suab zoo thiab nrov. LM555 tuaj yeem ua haujlwm tsuas yog 18V ua ntej nws mus pop, yog li peb tab tom yuav pib ua haujlwm thawj zaug ntawm 5V, tsim los ntawm LM7805 tus tswj hwm raws li qhia hauv lub npov sau 5V Cov Khoom. Lub zog sau lo lus 24V txuas rau lub hwj chim tseem ceeb, daim ntawv lo lub zog 5V txuas rau lub zog LM7805. Supply Decoupling sau npe Supply Decoupling. Qhov tseem ceeb tshaj plaws yog tso ob peb lub kaus mom ntawm 24V khoom nyob ze (piv txwv li nyob ze ntawm lub cev) rau lub zog hluav taws xob rau LM1875 thiab ntawm 5V muab khoom ze rau LM555. Tej zaum yuav tsum muaj qee qhov ntawm txhua qhov khoom siv ze rau LM7805 ib yam nkaus. Lub zog hluav taws xob txiav tawm yog ib qho ntawm cov khoom siv tes, tab sis yog tias koj tsis ua nws, lub Circuit Court yuav tsis ua haujlwm. Light Sensor Txoj hauv kev yooj yim tshaj plaws los tig nws qhov kev tiv thaiv mus rau hauv lub teeb liab yog los ntawm kev ua qhov faib hluav taws xob tawm ntawm nws, raws li qhia hauv Lub Teeb Sensor lub thawv. Lub voj voog no nyuaj me ntsis nyuab dua li nws yuav tsum tau txhawm rau txhawm rau txo txoj hauv kev los tsim cov lus tawm tswv yim los ntawm lub zog siv. 1K resistor, 5.1V Zener diode thiab 10 uF capacitor tau siv los tsim kom muaj kev ruaj ntseg ruaj khov 5.1V siv los ntawm 24V cov khoom siv. Peb tuaj yeem siv LM7805 thib ob rau qhov chaw tiv thaiv thiab diode, tab sis qhov no yog qhov yooj yim me ntsis los ua nws vim tias tsis muaj tam sim no ntau dhau mus rau hauv photoresistor qhov faib hluav taws xob. Zener diode Kuv tab tom siv ntawm no yog 1N4733, tab sis ib qho qub 5.1V Zener yuav tsum ua haujlwm zoo. Qhov tseeb, tiag tiag txhua Zener txhua qhov yuav tsum ua haujlwm zoo, 5.1V tsis tas yuav yog qhov tseeb. Tsis txhob hnov qab taw tes rau Zener hauv qhov kev coj rov qab los ntawm qhov koj yuav siv lub teeb liab li cas! 5.6k resistor hauv koob kuv tau xaiv kom phim tus nqi ntawm photoresistor hauv lub teeb nruab nrab, koj tuaj yeem ntsuas koj lub photoresistor thiab ua tib yam., lossis tsuas yog siv tus tiv thaiv ntawm ob peb kohms. Qhov hluav taws xob tawm los ntawm qhov faib hluav taws xob yog 5.1V*5.6k/(5.6k+R (sensor)). Yuav muaj tus nqi ruaj khov raws li cov teeb pom kev ib puag ncig, nrog kev tshee hnyo rau saum nws raws li qhov hloov pauv ntawm lub teeb. Peb Peb xav kom nruab nrab lub teeb liab los ntawm lub teeb pom kev nyob ib puag ncig 2.5V, yog li peb tuaj yeem ua kom nrov nrov kom ntau li ntau tau ua ntej nws tsoo 0V lossis 5V. Ob lub 10k resistors hauv Bias Circuit tsim 2.5V, thiab op-amp wired raws li qhia qhov teeb liab teeb liab kom ua rau 2.5V ruaj khov tsis hais nws txuas nrog li cas. Cov op-amps nyob rau hauv Kev Nyiam thiab Preamp circuits yog txhua ib nrab ntawm MC1458 dual op-amp. PreampThe 10u capacitor cia AC wiggle dhau los tab sis tshem tawm cov nominal qib DC, thiab 10k resistor txuas nrog rau kev tsis ncaj ncees teeb tsa pib DC theem rau 2.5V. Op-amp teeb tsa raws li qhia nrog 100k thiab 1k resistor ua kom lub teeb liab los ntawm (100k+1k)/(1k), lossis 101. Peb tej zaum tsis xav tau qhov ntau ntxiv no, koj tuaj yeem sim ua Circuit nrog me me resistor hauv qhov chaw ntawm 100k thiab pom yog tias koj nyiam nws lub suab li cas. OscillatorThis siv lub qub LM555 zoo los ua ib puag ncig yoj. Tus lej nominal tau teeb tsa los ntawm 5.6k thiab 33k resistor thiab 1u capacitor raws li tus qauv f = 1.44/((5.6k+2*33k)*1u) = 20Hz. Oscillations los ntawm preamp yuav hloov pauv zaus uas LM555 tawm los ntawm tus pin 3. Koj tuaj yeem sim hloov cov resistors thiab pom qhov koj xav. VolumeKoj xav siv 1M logarithmic lauj kaub ntawm no. Qhov no tsuas yog txo cov teeb liab kom dav raws li xav tau. Power AmpThis muaj ntau qhov, yog li peb yuav saib nws hauv qhov tob dua hauv cov kauj ruam tom ntej.

Kauj Ruam 3: Lub Hwj Huam Amplifier Circuit

Lub voj voog no nyuaj me ntsis tab sis siv tau yooj yim, yog li kuv xav tias kuv yuav sau tawm txhua qhov. LM1875 tuaj yeem tso tawm txog 30 Watts yog tias koj muab nws 60 V, txaus txaus ua rau muaj teeb meem tiag tiag. Ntawm 24 V cov khoom siv peb tab tom siv lub zog tso tawm yuav tsuas yog txog 5 W, tab sis qhov ntawd yog qhov txaus txaus los ua suab nrov. Yog tias koj xav siv lub voj voog no nrog cov khoom siv loj dua, koj tsis tas yuav hloov dab tsi, tsuas yog ua kom ntseeg tau tias koj cov khoom tuaj yeem tso tawm tam sim no tsis muaj hluav taws kub. Koj yuav pom hauv cov duab tom ntej uas LM1875 ib txwm muaj lub rhaub dej kub txuas rau nws; qhov no yog qhov tseem ceeb. Nws yuav ua kom sov sai heev yam tsis muaj ib qho. Lawv tso qee yam khoom tiv thaiv zoo nkauj hauv lub nti kom yog tias nws kub dhau nws tsuas yog kaw yam tsis puas rau lub nti. Yog tias qhov tshwm sim rau koj, tau txais lub rhaub dej kub loj dua! lub preamp. Qhov qis tshaj plaws uas nws cia los ntawm kev txiav txim siab los ntawm lub capacitor thiab qhov tsis kam nws pom hauv koob. Txij li tus neeg hais lus yog tus tiv taus qis, peb xav tau lub hau loj ntawm qhov tso tawm. Ntawm qhov kev tawm tswv yim, lub tshuab hluav taws xob pom cov kev sib txuas hauv network, uas yog qhov muaj zog tiv taus ntau dua, yog li siv lub tshuab hluav taws xob me me. BiasThis yog tib lub tswv yim zoo ib yam li kev sib cav siv hauv preamp, tab sis tsis muaj op-amp buffer. Peb tuaj yeem tawm mus yam tsis muaj qhov nyob ntawm no vim tias peb tsis txuas cov kev tsis sib xws mus rau cov lus tawm tswv yim (lub 1k resistor hauv preamp). Lub hau hauv qhov tsis sib xws hauv Circuit Court yog siv rau kev txiav tawm, tib txoj hauv kev raws li cov khoom siv txiav lub kaus mom. ua qhov tsis txaus ntseeg ntawm tus hais lus yooj yim dua rau lub tshuab raj kom tsav. Tus hais lus ua zoo li tus tiv thaiv nyob rau hauv koob nrog tus inductor, tso tus tiv thaiv thiab lub peev xwm ua ke nrog tus hais lus ua rau txhua yam ua tau zoo dua li tsuas yog tus tiv thaiv. Qhov no yog qhov nyuaj, tab sis ntseeg kuv nws ua qhov sib txawv. Feedback NetworkLub tswv yim tawm tswv yim zoo li ib qho hauv preamp nkaus xwb nrog 10u capacitor ntxiv. Ntawm lub suab zaus, lub tshuab hluav taws xob ua haujlwm zoo li luv Circuit Court, thiab lub zog siv hluav taws xob Circuit Circuit ua rau peb tau txais txiaj ntsig ntawm 21. Ntawm DC, tus capacitor ua haujlwm zoo li qhib Circuit Court, ua rau peb tau txais txiaj ntsig ntawm 1. Kev hloov pauv tau ua ntawm f = 1 /(2*pi*10k*10u)=1.59Hz.

Kauj Ruam 4: Tsab Ntawv

Kuv ua lub Circuit Court ntawm tus protoboard. Yog tias koj muaj ib qho nws yog qhov muaj txiaj ntsig zoo los sim ua qhov no ua ntej. Tsis txhob sim tsim lub hauv paus kom phim cov duab raws nraim, tsuas yog sim ua kom tau qhov Circuit zoo. Kuv tsuas yog xav tias qee cov duab yuav pab nrog kev txhawb siab. Thiab los qhia tias nws yeej tsis yog txhua yam khoom tsim los.

Kauj Ruam 5: Tso Tawm ntawm Perfboard

Kuv sim khaws ob peb lub rooj zaum ntxiv nyob ib puag ncig. Lawv pheej yig. Kuv feem ntau yuav ua haujlwm tawm ntawm ib qho ntawm ib lub perfboard thiab tom qab ntawd luam nws ntawm qhov kuv tau siv. Lub khob kas fes yog qhov muaj txiaj ntsig ntawm no, koj tuaj yeem tso ib feem los ntawm nws thiab nws yuav nyob ntawd yam tsis muaj koj muab nws pov tseg. ua ke. Kuv sim ua kom ntau li ntau tau ntawm kev sib txuas nrog cov ntawd. Ntau npaum li qhov ua tau ntawm qhov kev sib txuas tas li yog ua los ntawm kev hla hla cov khoom ua rau sab nraub qaum thiab sib dhos ua ke. Ob peb kuv yuav xaim ua ke nrog cov xov hlau nyob rau sab saum toj ntawm pawg thawj coj saib. Kuv siv ob peb qhov kev txiav tawm ntau dua li ntawm cov phiaj xwm. Muaj lub kaus mom ntawm 24 V muab txoj cai ib sab ntawm LM7805, los tsim kom muaj 5 V ruaj khov, thiab lwm txheej ntawm 24 V muab txoj cai ib sab ntawm LM1875, kom nws zoo siab. Muaj ib txheej thib peb ntawm lub kaus mom ntawm 5 V.

Kauj Ruam 6: Solder It Down

Tsim lub tsev yam kawg tuaj yeem qeeb, tab sis kuv pom nws txaus siab kom muaj cov khoom tiav hauv cov khoom ruaj khov thiab tawm ntawm lub protoboard. Qhov no yog ib txoj hauv kev zoo los txhim kho cov txuj ci no ib yam nkaus. Kuv ib txwm ntshai ntawm messing li kuv lub rooj zoo nkauj zoo yog tias kuv ua yuam kev, tab sis nws hloov tawm koj tuaj yeem rov ua haujlwm yuav luag txhua qhov ua yuam kev ntawm ib ntawm cov laug cam no yog tias koj tau ceev faj. Tau txais cov khoom tiv thaiv feem ntau cuam tshuam nrog kev rhuav tshem nws, tab sis qhov tsis zoo, cov khoom siv pheej yig. Thaum nws tawm los koj tuaj yeem ntxuav cov laug tsis zoo ntawm lub rooj tsavxwm nrog qee lub tshuab ziab khaub ncaws. Kuv sim kom tau cov duab txaus yog li koj tuaj yeem luam nws raws nraim yog tias koj xav tau. Yog tias qee yam tsis meej kuv yuav sim kom tau txais cov duab ntau dua, lossis koj tuaj yeem txiav txim siab yuav ua li cas tso nws tawm ntawm koj tus kheej. Hauv daim duab ntawm sab nraub qaum, txoj kab sab saud khiav hla nruab nrab yog hauv av thiab qhov qis dua yog 24 V. LM1875 nyob ntawm sab xis thiab LM7805 nyob rau sab laug.

Kauj Ruam 7: Muab tag nrho ua ke

Ntawm no kuv muaj lub perfboard thib ob tau teeb tsa hauv qab ib qho los tiv thaiv kab thaiv ntawm sab nraub qaum. Kuv siv 1/4 nti spacers los tuav lawv sib nrug. Lub teeb pom kev zoo tau txuas mus rau lub tswm ciab thiab cov zis tawm mus rau peb tus neeg hais lus. Nws yooj yim heev thiab zoo siab.