Dupin-Tus Nqi Tus Nqi Uas Muaj Nqis Tshaj Plaws Portable Ntau-wavelength Lub Teeb Source: 11 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Lub npe tom qab Auguste Dupin, suav tias yog thawj tus neeg tshawb pom qhov tseeb, lub teeb pom kev nqa tau no khiav tawm ntawm 5V USB lub xov tooj charger lossis lub hwj chim pob. Txhua lub taub hau LED txuas ntawm cov hlau nplaum. Siv tus nqi qis 3W lub hnub qub coj, ua kom txias los ntawm lub kiv cua me me, chav tsev tau cog lus tab sis muaj ntau yam ntawm kev siv lub siab ntev nthwv dej. Tau kawg, nws tseem txhawb nqa LEDs dawb rau xim puv xim.

Cov duab ntawm no qhia tawm ntawm 415nm, 460nm, 490nm, 525nm, 560nm thiab 605nm.

Txawm li cas los xij, LEDs siv yog 365nm, 380nm, 415nm, 440nm, 460nm, 490nm, 500nm, 525nm, 560nm, 570nm, 570nm, 590nm, 605nm, 630nm, 660nm thiab 740nm. Kuj tseem pom tias yog 'nruab hnub nrig dawb' LED thiab PAR puv-spectrum LED uas tsim tawm lub teeb liab uas tsis muaj cov khoom ntsuab, npaj feem ntau rau kev siv rau kev cog qoob loo.

Ua haujlwm los ntawm qhov tso tawm qhov hluav taws xob tsawg qhov tseeb qhov chaw tam sim no, chav tsev muaj 100 lub teeb ci teeb tsa los ntawm lub cav nkag teb chaws thiab txuag lub teeb ci kawg thaum teeb tawm, yog li rov qab txiav mus rau qhov teeb ci kawg thaum qhib rov qab.

Chav tsev tsis siv PWM los tswj kev ci ntsa iab yog li tsis muaj qhov flicker, ua kom yooj yim rau nws siv hauv cov xwm txheej uas koj xav yees duab lossis yees duab cov duab yam tsis muaj khoom cuav.

Qhov tam sim no qhov muaj peev xwm nthuav dav dav dav bandwidth amplifier thiab theem tso tawm, tso cai tawm lossis hloov pauv mem tes mus txog ob peb puas kilohertz lossis txawm tias hloov pauv mem tes mus txog ze li ib megahertz. Qhov no muaj txiaj ntsig zoo rau kev ntsuas fluorescence lossis rau kev sim nrog teeb pom kev sib txuas lus cov ntaub ntawv thiab lwm yam.

Koj tseem tuaj yeem siv qhov tam sim no tsis tu ncua los tsav ntau LEDs. Piv txwv li, siv 24V lub zog xa khoom koj tuaj yeem tsav 10 LEDs liab nrog qhov poob qis ntawm 2.2V rau ib qho LED.

Nco ntsoov tias koj tseem siv lub zog tswj hluav taws xob tseem ceeb nrog 5V hauv qhov xwm txheej no, tab sis txuas cov neeg siv khoom ntawm lub zog transistor mus rau qhov siab dua. Yog xav paub ntxiv saib cov kauj ruam kawg hauv cov lus qhia no

Cov ntawv thov suav nrog kev tshuaj xyuas lub cev, tsom iav, tshuaj xyuas cov ntaub ntawv, khaws cov thwj cim, kev nkag siab, ntxhia ntxhia, UV, IR thiab duab pom duab, xim xim thiab pleev xim.

Khoom siv

Yuav luag txhua qhov xwm txheej no yog cov khoom siv uas kuv tau siv tiag tiag, sib nrug los ntawm tus neeg muag khoom khib uas tsis khaws cov khoom ntawd lossis tsis nyob ntawm eBay/Amazon ntxiv lawm.

Cov npe no npog feem ntau ntawm cov khoom koj xav tau, tsis suav nrog xaim, 2.5mm txiv neej lub zog ntsaws, thiab tshuab ntsia hlau.

20mm heatsinks rau LEDs

www.ebay.co.uk/itm/Aluminium-Heatsink-for-…

Feem ntau ntawm 3W LEDs tau muab los ntawm

futureeden.co.uk/

FutureEden tseem muab cov iav lo ntsiab muag uas muaj nyob rau ntau qhov kaum nrog rau 15, 45 thiab 90 degrees. Kuv siv 15 degree lo ntsiab muag hauv tsab ntawv.

560nm thiab 570nm LEDs

www.ebay.co.uk/itm/10pcs-3W-3-Watt-Green-5…

490nm LEDS

www.ebay.co.uk/itm/New-10pcs-3W-Cyan-490nm…

365nm LEDs

www.ebay.co.uk/itm/3W-365nm-UV-LED-ultravi…

D44H11 fais fab transistor

www.ebay.co.uk/itm/10-x-Fairchild-Semicond…

5mm txee pins

www.amazon.co.uk/gp/product/B06XFP1ZGK/ref…

Kiv cua thiab cua sov

www.amazon.co.uk/gp/product/B07J5C16B9/ref…

PCBs

www.amazon.co.uk/gp/product/B01M7R5YIB/ref…

Sib nqus sib txuas

www.ebay.co.uk/itm/Pair-of-Magnetic-Electr…

2.5mm poj niam lub hwj chim qhov (socket)

www.ebay.co.uk/itm/2-5mm-x-5-5mm-METAL-PAN…

BAT43 Schottky diode

www.ebay.co.uk/itm/10-x-BAT43-Small-Signal…

Cov khoom siv teeb liab me me (suav nrog BC327/337 siv hauv txoj haujlwm no)

www.ebay.co.uk/itm/200PCS-10-Value-PNP-NPN…

Rotary encoder (tus neeg muag khoom kuv siv tsis nyob ntawm eBay lawm tab sis qhov no yog tib chav)

www.ebay.co.uk/itm/Rotary-Encoder-5-pin-To…

X9C104P (qhov no yog los ntawm tus muag khoom sib txawv)

www.ebay.co.uk/itm/X9C104P-DIP-8-Integrate…

TIAB SA 2770

www.mouser.co.uk/ProductDetail/texas-instr…

USB tam sim no saib (xaiv tau)

www.amazon.co.uk/gp/product/B01AW1MBNU/ref…

Kauj Ruam 1: Rooj Sib Tham

Cov ntaub ntawv tseem ceeb thiab LED lub taub hau yog 3D luam tawm. Ib daim tiaj tiaj me me txuas rau tom qab ntawm rooj plaub los txhawb nqa tus lej nkag. Lub zog tau muab los ntawm tus qauv 2.5mm lub qhov (socket) lub zog. Tus txheej txheem USB txhuas tau txiav tawm kom ua rau lub hwj chim ua.

Txhua yam khoom tau luam tawm hauv PLA nrog 100% ntxiv thiab txheej siab ntawm 0.2 hli. Cov ntaub ntawv STL suav nrog cov ntawv txuas.

Luam tawm rooj plaub sib dhos nrog lub nraub qaum ntawm rooj plaub ntawm lub hauv paus. Tsis xav tau kev txhawb nqa.

Kauj Ruam 2: LED Lub Rooj Sib Tham

Txhua lub taub hau LED sib dhos suav nrog ob ntu luam tawm 3D, lub taub hau sab saud thiab phaj rov qab. Luam cov no hauv PLA ntawm 100% ntxiv thiab 0.2 hli txheej siab. Tsis xav tau kev txhawb nqa. Phaj sab nraub qaum yuav tsum tau luam tawm nrog lub tiaj tiaj saum npoo kov lub hauv paus.

Nco ntsoov tias cov duab stl uas tau pom yav dhau los muaj lub nraub qaum tsom mus rau 180 degrees tawm - sab tiaj yog sab nrauv ntawm lub phaj rov qab thaum koj ntsia liaj qhov rooj ua ke.

Txhua lub taub hau sib dhos ces muaj 20mm x 10mm heatsink nrog LED txuas xovxwm haum rau sab saud. Cov duab qhia yuav ua li cas sib sau ua ke. Pib los ntawm tev daim ntawv tawm ntawm daim ntaub nplaum thiab lo lub LED rau, saib xyuas kom lub LED heatsink puv hauv 20mm heatsink tus qauv.

Tom qab ntawd txuas ob lub xov hlau mus rau LED thiab tom qab ntawd thawb lub rhaub dej kub rau hauv lub taub hau sab saud, saib xyuas kom ntseeg tau tias lub rhaub dej kub fins tau taw qhia raws li qhia hauv daim duab. Qhov no yog txhawm rau txhawm rau ua kom huab cua txias tshaj plaws.

Thaum koj tau kho lub rhaub dej kub, rub cov xov hlau hla thiab txiav tawm raws li qhia hauv daim duab, tawm ntawm 3/4 nti ntawm xaim. Siav thiab tin qhov kawg ntawm cov xov hlau.

Lub taub hau LED txuas rau rooj plaub ntawm ob tus pin uas yog tsim los ntawm npib tsib xee plated steel txee pins. Cov no yog qhov zoo tshaj plaws rau txoj haujlwm vim tias lawv muaj flange uas tso cai rau peb xauv lawv hauv qhov chaw.

Siv lub taub loj chisel soldering hlau taub, tin sab saum toj ntawm txhua tus pin. Tuav tus pin hauv qhov sib piv lossis qhov ib txwm yog ib qho ntawm cov cuab yeej ua haujlwm me me raws li tau qhia - lawv tau yooj yim heev rau ua cov xov tooj ib yam.

Tom qab ntawd txuas cov xov hlau mus rau tus pin, kom ntseeg tau tias cov hlau ntsiab lus ncaj ncaj, raws li qhia. Cia kom txias.

Thaum cov pins tau txias, muab lub phaj txuas rov qab siv 2 X M2 12mm tshuab ntsia hlau thiab txiv ntseej. Ua kom ntseeg tau ua ntej koj ua qhov no tias lub phaj rov qab lub qhov tau raug ntxuav nrog kev sib tw ntswj lossis taper reamer. Cov hlau hlau yuav tsum muaj peev xwm yoj me ntsis. Qhov no yog qhov tseem ceeb kom ntseeg tau tias kev sib nqus sib nqus muaj kev ntseeg tau.

Nco tseg: Kuv tau siv cov ntsia hlau nylon thiab cov txiv ntseej rau qee chav thiab tom qab ntawd hlau rau lwm tus. Cov hlau hlau tej zaum yuav xav tau lub tshuab ntxhua khaub ncaws zoo li lawv ib txwm muaj lub siab xav tuaj rau qhov tsis tau ntsaws rau lub sijhawm; nylon screws zoo li muaj kev sib txhuam ntau dua thiab qhov no tsis tshua muaj teeb meem.

Optionally, clip ntawm lub lens mus rau LED yog tias koj xav kom sib tsoo lub nqaj, uas yog lwm yam zoo nkauj heev.

Kauj Ruam 3: PCB loj

Lub rooj tsav xwm tseem ceeb yog tsim los siv 30 x 70mm matrix board. Cov no muaj dav, muaj cov khoom siv fiberglass zoo nrog 0.1 nti matrix ntawm qhov plated qhov.

Cov xov hlau taw tes-rau-taw tes siv qhov hu ua 'xaim xaim' uas kwv yees li 0.2 hli xaim tooj liab xaim. Cov rwb thaiv tsev yaj nrog cov txheej txheem hlau ib txwm siv.

Lub cav encoder teb tau ncaj qha mus rau qhov kawg ntawm lub rooj tsavxwm. Nco ntsoov tias tus pin encoder tau txuas rau hauv qab ntawm lub rooj tsavxwm.

Hauv cov theem hauv qab no koj yuav tsim ib feem ntawm tag nrho cov Circuit thiab sim lawv ua ntej txuas ntxiv. Qhov no ua kom ntseeg tau tias lub rooj tsav xwm hauv Circuit Court tiav yuav tsum ua haujlwm kom raug.

Cov duab qhia lub rooj tsav xwm thaum sib dhos. Cov xaum xaum tuaj yeem pom ntawm sab nraub qaum, txuas nrog feem ntau. Cov xaim tuab tau siv qhov twg muaj kev cuam tshuam ntau dua. Qee qhov txiav tawm cov khoom siv tau siv los ua lub zog thiab cov tsheb nqaj hlau saum toj thiab hauv qab ntawm pawg thawj coj saib.

Nco tseg: qhov chaw nruj. Mount resistors ntsug kom txuag chaw. Cov txheej txheem ntawm no 'hloov pauv' raws li pawg thawj coj tau sib sau ua ke thiab kuv zoo siab me ntsis txog qhov chaw xav tau thiab yuav tsum tau teeb tsa txhua tus tiv thaiv kab rov tav thiab tsis yog kab rov tav raws li qhia.

Kev sib txuas tau tsim los siv 'veropins' tab sis koj tseem tuaj yeem siv lub voj ntawm cov xov hlau tiv thaiv, nrog rau qhov kawg splayed hauv qab; txawm li cas los xij qhov no siv ob lub qhov rau ib qho kev sib txuas ntau dua ib qho nrog tus pin.

Kauj ruam 4: Encoder Circuit

Kuv tau kos tawm lub Circuit Court raws li ob peb qhov sib txawv. Qhov no yog kom koj tuaj yeem pom meej tias txhua ntu ua dab tsi. Koj yuav tsum tsim cov phiaj xwm hluav taws xob hauv cov kauj ruam, kuaj xyuas tias txhua ntu ua haujlwm tau zoo ua ntej ntxiv ntu tom ntej. Qhov no ua kom ntseeg tau tias txhua yam yuav ua haujlwm raug yam tsis muaj teeb meem daws teeb meem ntau.

Ua ntej kuv pib, ib lo lus hais txog kev siv tshuaj yaj yeeb. Kuv siv leaded solder, tsis yog unleaded. Qhov no yog vim tias tsis tau siv lub lauj kaub hnyav dua los ua haujlwm nrog hauv cov xwm txheej siv tes ua. Nws tins tsis zoo thiab feem ntau tsuas yog mob. Leaded solder muaj kev nyab xeeb heev thiab koj yuav tsis raug rau tej pa taws txaus ntshai thaum ua haujlwm nrog nws. Tsuas yog siv kev nkag siab thiab ntxuav koj txhais tes tom qab siv tas thiab ua ntej noj mov, haus dej lossis haus luam yeeb. Amazon muag cov khoom lag luam zoo zoo ntawm cov nplua-ntsuas ntsuas ua tus kav.

Lub encoder interface

Qhov no yog qhov yooj yim heev. Tus encoder muaj peb tus pin, A, B thiab C (ib txwm muaj). Raws li koj tuaj yeem pom, peb tsaws tus pin C thiab peb rub tus A thiab B pins ntawm 10K resistors. Tom qab ntawd peb ntxiv 10nF capacitors rau hauv av kom du tawm kev sib cuag, uas tuaj yeem ua rau ua haujlwm tsis raug.

Cov A thiab B pins txuas rau INC thiab U/D pins ntawm lub lauj kaub digital IC. (X9C104). Txuas cov kab hluav taws xob no thiab xaim X9C104 lub zog thiab cov pins hauv av ib yam. Ntxiv rau 470uF thiab 0.1uF lub zog txiav lub zog hluav taws xob lub sijhawm no ib yam nkaus.

Tus pin encoder yuav tsum tau muab tso rau hauv qab ntawm lub rooj tsav xwm hauv Circuit Court; lub qhov nyob rau sab nraub qaum tom qab yuav kab nrog tus ncej encoder.

Ib ntus xaim CS tus pin ntawm X9C104P rau +5V. Peb yuav txuas qhov no mus rau lwm qhov ntawm Circuit Court tom qab.

Tam sim no txuas 5V rau hauv Circuit Court thiab siv lub ntsuas ntsuas, txheeb xyuas qhov tsis kam ntawm H thiab W pins ntawm X9C104P hloov pauv zoo ntawm yuav luag 0 ohms thiab 100K ohms thaum koj tig lub encoder.

Kauj Ruam 5: Lub Hwj Huam Fais Fab Tam Sim No

Thaum koj ntseeg siab tias lub tshuab hluav taws xob encoder ua haujlwm, nws yog lub sijhawm los tsim ntu ntu tam sim no lub zog siv. Txuas TLV2770 op-amp lub zog thiab hauv av thiab tom qab ntawd xaim raws li qhia, txuas mus rau H, W thiab L pins ntawm X9C104P.

Ua kom ntseeg tau tias koj txuas lub 0.1 ohm tam sim no hnov lub zog tiv thaiv ncaj qha rau tus pin hauv av ntawm TLV2770 thiab tom qab ntawd 'lub hnub qub' txuas cov khoom siv hauv av ntxiv rau qhov no (1N4148 cathode, 10K resistor, 0.1uF capacitor). Tom qab ntawd txuas qhov taw tes hauv av no mus rau txoj kev tsheb nqaj hlau ntawm daim phiaj hluav taws xob. Qhov no ua kom ntseeg tau tias qhov kev tiv thaiv me me ntawm cov tsheb nqaj hlau hauv av thiab qhov tam sim no cuam tshuam tus neeg tiv thaiv tsis tau pom los ntawm opamp li ua yuam kev tsis zoo. Nco ntsoov tias ntawm 750mA qhov hluav taws xob hla 0.1 ohm resistor tsuas yog 75mV.

Ib ntus txuas kab SHDN rau +5V. Peb yuav txuas qhov no mus rau lwm qhov ntawm Circuit Court tom qab.

Lub kiv cua txias uas peb siv yog npaj rau Raspberry Pi. Nws los, yooj yim, nrog txheej ntawm cov rhaub dej kub, ib qho uas peb yuav siv rau lub zog loj transistor.

D44H11 lub zog hloov hluav taws xob yuav tsum tau teeb tsa ntawm lub kaum sab xis rau lub rooj tsavxwm, nyam mus rau lub rhaub dej loj tshaj plaws uas los nrog Raspberry Pi cov khoom siv ntxuam.

680K resistor yuav xav tau kho kom ntseeg tau tias qhov siab tshaj tam sim no los ntawm LEDs tsis tshaj 750mA.

Txuas +5V dua thiab lub zog LED, teeb tsa ntawm lub rhaub dej kub. Tam sim no txheeb xyuas tias koj tuaj yeem hloov pauv tam sim no los ntawm LED los ntawm kev hloov tus lej nkag. Qhov tsawg kawg tam sim no tau xaiv los kwv yees li 30mA, uas yuav tsum muaj txaus los xyuas kom meej tias feem ntau 5V lub xov tooj ntawm tes lub hwj huam pob yuav tsis raug kaw yam tsawg kawg nkaus ci.

Qhov xaiv USB saib tam sim no yog cov khoom siv muaj txiaj ntsig ntawm no, tab sis yog tias koj siv nws koj yuav pom tseeb yuav tsum ua lub hwj chim ua ntej, raws li tau tham hauv ntu tom qab.

Faj seeb: luv luv wavelength LEDs yuav tau txais kub heev ntawm qhov tam sim no vim peb tseem tsis tau kiv cua-txias lub rhaub dej kub, yog li ua kom lub sijhawm ua haujlwm luv (ob peb feeb) thaum ntsuas.

Nws ua haujlwm li cas: qhov ntsuas hluav taws xob hla qhov ntsuas qhov ntsuas tam sim no piv rau qhov ntsuas hluav taws xob siv. Lub opamp hloov kho nws cov zis kom ntseeg tau tias ob lub tswv yim nyob ntawm tib qhov hluav taws xob (tsis quav ntsej cov tswv yim offset voltage ntawm opamp). Lub 0.1uF capacitor hla digital potentiometer ua haujlwm rau ob lub hom phiaj; nws lim tawm 85KHz them lub twj tso suab nrov los ntawm X9C104 lub cuab yeej thiab nws tseem ua kom ntseeg tau tias ntawm lub zog nce qhov xav tau tam sim no yog xoom. Thaum cov opamp thiab cov lus pom tau ruaj khov, qhov hluav taws xob hla lub capacitor yuav nce mus rau qhov xav tau qhov hluav taws xob. Qhov no tiv thaiv tig-rau tam sim no spikes los ntawm lub load.

D44H11 transistor tau raug xaiv vim tias nws muaj qhov ntsuas tau zoo tam sim no thiab qhov siab tshaj plaws tau txais yam tsawg 60, uas yog qhov zoo rau lub zog transistor. Nws kuj muaj qhov txiav tawm siab uas pab txhawb kev hloov pauv nrawm ntawm qhov tam sim no yog xav tau.

Kauj Ruam 6: Kev Tswj Hluav Taws Xob

Lub hwj chim tswj hluav taws xob feem ntau hloov qhov hloov pauv tam sim ntawm lub tshuab hluav taws xob hloov mus rau qhov hloov pauv lub zog.

BC327 thiab BC337 transistors tau siv vim tias lawv tau txais txiaj ntsig zoo thiab muaj peev xwm tshaj plaws tam sim no ntawm 800mA uas yog qhov yooj yim rau kev hloov kiv cua qhov twg kiv cua kos ib ncig 100mA. Kuv yuav cov khoom siv pheej yig ntawm ntau yam me me teeb liab transistors uas suav nrog ntau yam khoom siv tau zoo. Nco ntsoov tias hauv cov qauv no cov transistors muaj -40 cov ntawv ntxiv qhia txog qhov nce siab tshaj plaws hauv. Thaum kuv tsis ntseeg qhov teeb meem no ntau, thiab koj yuav tsum tau txais cov cuab yeej zoo sib xws yog tias koj yuav cov khoom siv tib yam, tsuas yog yuav tsum paub txog qhov no.

Lub zog tswj hwm los ntawm toggling tus pin SHDN ntawm TLV2770 opamp. Thaum tus pin SHDN qis, opamp tau xiam oob qhab thiab thaum nws siab opamp ua haujlwm ib txwm muaj.

Lub zog tswj hluav taws xob tseem tswj hwm kab CS ntawm X9C104 digital potentiometer. Thaum lub hwj chim raug kaw, CS kab mus rau siab, ua kom ntseeg tau tias qhov teeb tsa tam sim no ntawm lub lauj kaub tau rov qab los rau nws lub cim xeeb tsis hloov pauv.

Nws ua haujlwm li cas: pib qhov sib txuas ntawm 100K resistor thiab 1uF capacitor nyob ntawm +5V. Thaum qhov hloov pauv tam sim raug nias, qib siab tau hloov pauv ntawm 10nF capacitor mus rau lub hauv paus ntawm Q1, uas tig rau. Ua li ntawd nws thiaj rub tus neeg sau qis thiab qhov no ua rau Q2 tig mus rau ib yam. Lub Circuit Court tom qab txuas ntawm 270K cov lus tawm tsam tiv thaiv, ua kom ntseeg tau tias Q1 thiab Q2 ob qho tib si nyob thiab SHDN cov zis yog siab.

Txog tam sim no qhov kev sib tshuam ntawm 100K resistor thiab 1uF cap tam sim no rub qis los ntawm Q1. Thaum qhov hloov pauv ib ntus raug nias dua yog li ntawd, lub hauv paus ntawm Q1 raug rub qis, tig nws tawm. Tus neeg sau khoom nce mus rau +5V tig tawm Q2 thiab SHDN cov zis tam sim no mus qis. Nyob rau ntawm qhov no Circuit Court rov qab mus rau nws lub xeev pib.

Sib sau ua ke cov tswj hwm hluav taws xob thiab txuas qhov hloov pauv tam sim ntawm tus lej nkag mus rau nws. Txheeb xyuas tias SHDN toggles txhua lub sijhawm koj nias qhov hloov pauv thiab tias thaum SHDN qis, CS siab dua thiab hloov pauv.

Ib ntus txuas lub kiv cua txias mus rau tus neeg khaws khoom ntawm Q3 thiab +5V txoj kev tsheb nqaj hlau (uas yog qhov ua tau zoo los ntawm tus kiv cua) thiab txheeb xyuas tias thaum SHDN siab dua, kiv cua qhib.

Tom qab ntawd xaim hluav taws xob tswj hluav taws xob mus rau qhov txuas hluav taws xob tam sim no thiab txuas CS mus rau X9C104P digital potentiometer, tshem qhov txuas hauv av ib ntus. Txuas SHDN rau TLV2770 thiab tseem tshem qhov txuas ib ntus rau tus pin ntawd.

Tam sim no koj yuav tsum tuaj yeem lees paub tias lub zog hluav taws xob ua haujlwm raug thiab qhib thiab tawm thaum hloov pauv tus lej nkag mus.

Kauj Ruam 7: Txhaum Kev Tiv Thaiv Circuit

Zoo li feem ntau cov khoom siv hluav taws xob tam sim no, muaj teeb meem yog tias lub nra raug txuas thiab rov txuas dua. Thaum lub thauj khoom raug txiav tawm, Q4 saturates raws li opamp tau sim tsav tam sim no los ntawm kev thauj khoom. Thaum lub thauj khoom rov txuas dua, vim tias Q4 tau ua tiav, lub siab tam sim no tuaj yeem ntws los ntawm nws rau ntau lub microseconds. Thaum cov 3W leds no tau ua siab ntev rau kev hloov pauv, lawv tseem dhau cov ntawv txheeb xyuas (1A rau 1ms) thiab yog tias lub nra yog lub rhiab heev laser diode nws tuaj yeem rhuav tshem tau yooj yim.

Kev tiv thaiv kev tiv thaiv tsis raug saib xyuas lub hauv paus pib dhau los ntawm Q4. Thaum lub thauj khoom raug txiav tawm qhov no nce mus txog kwv yees li 30mA, ua rau qhov hluav taws xob hla 27 ohm resistor kom nce txaus los qhib Q5 thiab qhov no ua rau Q6 tig rau thiab nws cov neeg sau khoom poob qis mus rau hauv av. Lub schottky diode (xaiv vim nws 0.4V rau pem hauv ntej qhov hluav taws xob tsawg dua 0.7V xav kom tig lub transistor rau) tom qab ntawd rub cov kab FLT qis, tig Q1 thiab Q2 thiab yog li kaw lub zog.

Qhov no ua kom ntseeg tau tias lub thauj khoom tsis tuaj yeem txuas nrog lub hwj chim ntawm, zam kom tsis txhob muaj kev puas tsuaj rau lub sijhawm.

Kauj Ruam 8: Sib dhos

Muab cov hlau nplaum txuas rau qhov luv luv ntawm cov hlau uas tsim nyog (kwv yees li 6 ntiv tes ntev), kom ntseeg tau tias cov xaim yuav haum los ntawm lub qhov hauv rooj plaub.

Xyuas kom lub qhov rooj huv si - siv qhov ntswj ntswj kom ntseeg tau qhov no, thiab qhov me me kom ntseeg tau tias cov xaim hlau nyob tom nraub qaum kuj tseem huv.

Tam sim no siv lub taub hau LED, kaw qhov txuas mus rau lub taub hau thiab ntxig rau hauv rooj plaub. Lub taub hau LED yuav tsum haum kom thaum koj saib ntawm txoj hauv kev, muaj qhov sib txawv me me ntawm txoj hauv kev thiab rooj plaub. Thaum koj ntseeg siab tias cov couplers haum kom raug, tso me me ntawm epoxy tso rau tom qab ntawm txhua tus, thiab ntxig nrog lub taub hau LED thiab tso nws qhov chaw tawm ntawm txoj kev thaum cov kua nplaum tawv. Kuv xaim kuv lub rooj sibtham LED lub taub hau kom nrog rau sab nraub qaum ntawm lub taub hau sib dhos tig mus rau koj thiab txoj hauv kev taw tes taw, qhov kev sib txuas zoo nyob ntawm koj sab xis.

Thaum cov kua nplaum ua kom tawv, tshem lub taub hau thiab tom qab haum lub kiv cua, nrog daim ntawv lo pom, piv txwv li cov pa ntws tau thawb huab cua hla lub taub hau rhaub. Kuv siv ob lub M2 X 19mm tshuab ntsia hlau thiab lub txiv ntseej rau ntsaws lub kiv cua, nws yog qhov tsis txaus ntseeg tab sis xaub nws los ntawm rooj plaub tom qab thiab tom qab ntawd koj yuav tsum tuaj yeem tau txais txhua yam hlua thiab khawm.

Tam sim no koj tuaj yeem ntsaws lub qhov hluav taws xob 2.5mm, thiab txuas txhua lub xov hlau mus rau PCB, tso tawm kom txaus txaus kom koj tuaj yeem xaim nws yooj yim dua tom qab ntawd xaub nws mus rau hauv rooj plaub ntawm cov kab ntawv luam tawm rau hauv rooj plaub.

Lub phaj tom qab sib dhos tau nrawm nrog plaub qhov me me tus kheej tapping ntsia hlau. Nco ntsoov tias txoj haujlwm ntawm tus ncej nkag tsis zoo nyob hauv phaj yog li ua kom ntseeg tau tias koj tig nws kom txog thaum cov ntsia hlau ntsia qhov kab.

Kauj Ruam 9: USB Fais Fab Cable

Lub hwj huam hluav taws xob tau tsim los ntawm USB cable pheej yig. Txiav lub cable ntev li 1 ntiv tes ntawm qhov txuas USB loj dua thiab hle nws. Cov kab liab thiab dub yog lub zog thiab hauv av. Txuas qee cov duab tuab dua 8 kab rau cov no, siv heatshrink rau insulate, thiab tom qab ntawd ntawm lwm qhov kawg txuas tus qauv 2.5mm fais fab ntsaws.

Peb txiav lub USB cable luv vim tias cov hlau lead nyias dhau los nqa qhov tam sim no thiab yuav poob qhov hluav taws xob ntau dhau.

Kauj Ruam 10: Kev Xaiv Kev Xaiv thiab Kev Sib Txuas Fiber

Txhawm rau hloov kho qhov tam sim no, tshem tawm 0.1uF lub tshuab hluav taws xob thiab W tus pin los ntawm cov lus tsis hloov pauv ntawm opamp thiab txuas qhov kev nkag mus rau hauv av ntawm 68 ohm resistor. Tom qab ntawd txuas 390 ohm resistor rau qhov tsis hloov pauv. Lwm qhov kawg ntawm tus tiv thaiv yog tom qab ntawd hloov kho cov tswv yim, nrog 5V tsav lub LED kom puv tam sim no. Koj tuaj yeem haum ob peb tus neeg dhia mus rau lub rooj tsavxwm kom yooj yim hloov pauv los ntawm tus lej nkag mus rau kev hloov pauv sab nraud.

Koj tuaj yeem siv STL los ntawm Angstrom txoj haujlwm rau 3mm fiber txuas yog tias koj xav txuas cov LEDs rau fiber ntau piv txwv li rau tsom iav thiab lwm yam.

Kauj ruam 11: Hwj chim ntau LEDs

Koj tuaj yeem siv tus tsav tsheb tam sim no los tsav ntau lub LEDs. LEDs tsis tuaj yeem sib txuas ua ke raws li ib qho LED yuav siv feem ntau tam sim no. Yog li koj txuas cov LEDs hauv kab ntawv thiab tom qab ntawd txuas lub anode ntawm sab saum toj LED mus rau qhov tsim nyog siv hluav taws xob, tawm hauv qhov tseem ceeb tswj Circuit tseem khiav ntawm 5V.

Feem ntau nws yooj yim dua tsuas yog siv cov khoom siv hluav taws xob cais rau cov LEDs thiab tso txhua yam ntxiv kom khiav tawm lub xov tooj them tus qauv.

Txhawm rau suav qhov hluav taws xob, siv tus lej ntawm LEDs thiab ntau los ntawm qhov poob qis rau txhua LED. Tom qab ntawd tso cai nyob ib ncig ntawm 1.5V cov npoo. Piv txwv li, 10 LEDs nrog qhov poob qis ntawm 2.2V txhua qhov xav tau 22V yog li 24V cov khoom siv yuav ua haujlwm zoo.

Koj yuav tsum paub tseeb tias qhov hluav taws xob hla lub zog transistor tsis siab dhau li txwv tsis pub nws yuav kub dhau - raws li tau tsim ntawm no nws poob ze li 3V hauv qhov xwm txheej tsis zoo (tsav tsheb infrared LED nrog lub zog qis qis) yog li qhov no yog qhov siab tshaj plaws koj yuav tsum tsom rau tshwj tsis yog tias koj xav siv lub rhaub dej loj dua. Ntawm ib qho xwm txheej twg kuv yuav khaws qhov hluav taws xob tsawg dua 10V vim tias koj tab tom pib nkag mus rau qhov txwv tam sim no raws li thaj chaw ua haujlwm ruaj ntseg.

Nco ntsoov tias lub tshuab tso hluav taws xob luv luv muaj cov hluav taws xob siab dua yav tom ntej, nrog 365nm LEDs poob ze li 4V. Txuas 10 ntawm cov no hauv kab yuav poob 40V thiab tus qauv 48V lub zog xa khoom yuav xav tau lub rhaub dej loj dua ntawm lub zog transistor. Xwb, koj tuaj yeem siv ntau qhov 1A diodes hauv kab nrog LEDs kom tso qhov hluav taws xob ntxiv ntawm 0.7V rau ib qho diode, hais 8 kom poob 5.6V thiab tom qab ntawd qhov no tsuas yog 2.4V hla lub zog transistor.

Kuv yuav ceev faj ntawm kev siv hluav taws xob ntau dua li qhov no. Koj tab tom pib nkag mus rau teeb meem kev nyab xeeb yog tias koj tau ntsib nrog lub hwj chim. Xyuas kom koj haum qhov fuse tsim nyog hauv koob nrog LEDs; raws li tau tsim ntawm no, 5V lub zog siv hluav taws xob muaj kev nyab xeeb txwv tam sim no thiab peb tsis xav tau ib qho tab sis hauv qhov xwm txheej no peb yuav xav tau kev tiv thaiv tiv thaiv luv luv. Nco ntsoov tias luv luv txoj hlua ntawm LEDs zoo li qhov no tej zaum yuav ua rau muaj kev cuam tshuam zoo ntawm lub hwj chim transistor, yog li ceev faj!. Yog tias koj xav kom muaj hwj chim ntau dua LEDs, tej zaum koj yuav xav tau cov khoom sib txuas ntawm cov peev txheej tam sim no. Koj tuaj yeem siv ntau daim ntawv theej ntawm tus neeg tsav tsheb tam sim no (nrog rau nws tus kheej tiv thaiv kev tiv thaiv Circuit Court) thiab sib qhia ib qho kev siv tus lej nkag, lub zog tswj hluav taws xob, thiab ntsuas hluav taws xob ntawm lawv, txhua daim ntawv yuav muaj nws tus kheej lub zog transistor thiab tsav, hais tias, 10 LEDs. Tag nrho cov kab hluav taws xob tuaj yeem sib txuas tau vim tias cov tsav tsheb tsis tu ncua yog txhua tus tuav ib txoj hlua ntawm LEDs hauv qhov xwm txheej ntawd.