Crossfader Circuit Point-to-Point: 16 Cov Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Qhov no yog crossfader Circuit. Nws lees txais ob lub tswv yim thiab ploj ntawm lawv, nrog cov zis yog sib xyaw ntawm ob qhov kev nkag mus (lossis tsuas yog ib qho ntawm cov tswv yim). Nws yog ib qho yooj yim Circuit Court, muaj txiaj ntsig zoo, thiab tsim tau yooj yim! Nws hloov pauv lub teeb liab mus los ntawm nws, yog li koj yuav tsis tuaj yeem siv nws rau kev tswj hluav taws xob.

Khoom siv

Nov yog yam koj xav tau:

• 1 potentiometer, 20K yuav ua haujlwm zoo tshaj plaws, tab sis koj tuaj yeem khiav tawm nrog txhua yam los ntawm 5K txog 100K
• 4 10K resistors
• 120K resistor
• 1 100nF ceramic disc capacitor
• 1 TL074 quad op amp
• Ntau cov xov hlau rau lub zog thiab khoom siv
• Pliers los khoov cov khoom
• Clippers los txiav cov xov hlau
• Ib tug soldering hlau thiab solder
• Lub siab xav dhau los ua ib tus neeg muag khoom

Kauj Ruam 1: Ntsib Tus Tij Laug TL074, Koj Tus Phooj Ywg Nyob Ib Leeg Quad Op Amp

Saib seb. Nws yog ib qho zoo nti. Txhim khu kev ntseeg, khov kho, nkag siab yooj yim, thiab pheej yig!

Daim ntawv ceeb toom ib nrab-thais thais nyob ze qhov kawg ntawm lub nti. Qhov ntawd yog qhov "sab saum toj" kawg ntawm cov nti, thiab cov pins ntawm nti tau suav, los ntawm 1 txog 14, pib nrog tus pin mus rau sab laug ntawm "sab saum toj" ntawm lub nti, mus rau-clockwise ib ncig ntawm lub nti.

Microchips pins tau suav tus lej no los ntawm rov qab rau hauv ib hnub thaum tsis muaj microchips; tag nrho cov khoom siv hluav taws xob yog raj, uas yog puag ncig. Cov khoom tseem ceeb ntawm lub raj yuav nyob hauv lub khob iav puag ncig, thiab cov kws tshaj lij ua haujlwm nrog kev lag luam kawg ntawm lub raj suav tus naj npawb ntawm tus pin raws lub hauv paus. Saib hauv qab ntawm lub microchip, cov koob tau suav ib yam nkaus!

Kauj Ruam 2: "Ow," Hais Tias TL074, "Koj tau khoov kuv ob txhais ceg"

Cov khoom siv hluav taws xob taw tes-rau-taw tes tsis zoo rau nti pins. Kuv zoo siab tiag tiag chips tsis muaj, zoo li, ACLs thiab khoom.

Khoov tus pin ntawm sab laug ntawm lub nti zoo li no. Peb yuav khoov tus pin 1 thiab 2 ua ke, khoov tus pin 4 nrog lub ntsej muag me ntsis taw tes tawm, thiab khoov tus pin 6 thiab 7 ua ke kom lawv kov.

Kauj Ruam 3: Peb Tus Phooj Ywg Chip Ua Tus Cuam Tshuam Tuag

Nov yog lwm sab ntawm lub nti yuav zoo li cas.

Khoov tus pin 8 thiab 9 ua ke, khoov tus pin 10 thiab 12 yog li lawv tau pw ncaj ncaj rau hauv qab ntawm lub nti, thiab khoov tus pin 11 yog li cov yuag me ntsis tau hais tawm.

Kauj Ruam 4: Hla Capacitor !!!!!

Vam tias peb cov hlau txuas tau sov tuaj, vim tias nws txog lub sijhawm yuav yaj cov hmoov txhuas!

Nov yog thawj ntu kuv ntxiv rau txhua qhov tsim, hla dhau lub capacitor. Txhua lub nti yuav tsum muaj hla dhau lub tshuab hluav taws xob nyob ze rau lub hwj chim pins. Bypass capacitors pab ua suab nrov los ntawm kev nkag mus rau hauv Circuit Court los ntawm cov xov hluav taws xob, thiab tseem ua suab nrov los ntawm cov chips los ntawm kev nkag mus rau qhov seem ntawm txhua qhov kev sib tw nyob ze rau hauv Circuit Court. Qee qhov kev siv hluav taws xob yuav tsis xaus qhov nqus suab nrov rau hauv cov ntsia hluav taws xob (qhov no yuav tsis) tab sis qee qhov tsis zoo, yog li hla dhau lub tshuab hluav taws xob yog lub tswv yim zoo. Siv lawv!

Yog lawm, qhwv lub tog raj kheej ib ncig ntawm tus pin 4 thiab 11, thiab ntaus cov pob ntawd nrog cov laug. Tsis tas li, muab cov pins uas peb khoov duav sib kov.

Kauj Ruam 5: Khoom Hlau thiab lauj kaub

Nov yog potentiometer!

Lub voj voog no ua haujlwm los ntawm kev nqa "GROUND" mus rau ib qho ntawm cov cim khoom xa tuaj, ua rau nws ploj mus thiab tom qab ntawd ploj mus, thaum nqa "GROUND" kom deb ntawm lwm lub teeb liab tuaj. Tus wiper ntawm lub zog ntsuas yog ib feem uas yuav nqa qhov "GROUND", yog li peb yuav siv qee cov hlau xaim thiab khoov nws ib ncig ntawm nruab nrab txhais ceg ntawm lub zog.

Kuv nyiam khoov ob txhais ceg ntawm kuv lub hwj chim zoo li no. Ua siab mos siab muag thiab lawv yuav tsis tawg.

Kauj Ruam 6: Chip koom nrog lub lauj kaub

Muaj ob tus pin ntawm TL074 nti uas tseem tau txais hauv av. Nws yog ob tus pin peb khoov kom pw ncaj rau hauv qab ntawm lub nti. Peb yuav txuas qhov kawg ntawm V ntawm cov hlau ruaj khov rau ob tus pin.

Yog tias peb xav zoo li nws, peb tuaj yeem lo lub nti rau ntawm lub zog ntsuas. Daim kab xev ob tog ua haujlwm zoo, ua haujlwm zoo tshaj plaws, kuv nyiam cov kua nplaum (Goop lossis E6000) ua haujlwm, tab sis siv sijhawm ib ntus kom qhuav, thiab cov kua nplaum ntawd yuav dhau mus rau qhov haujlwm no LOL

Kauj Ruam 7: Koom nrog Kev Tiv Thaiv

Cia peb ua plaub 10K resistors zoo li qhov no!

Kauj Ruam 8: Kuv Tsis Yog Crook

Saib! Nws zoo li me ntsis Richard Nixon ua tus ntxaib-yeej-ntiv tes!

Peb tab tom yuav coj cov khoom sib tw luv luv ntawm cov neeg tawm tsam thiab muab lawv txuas rau ob sab ntawm ob sab ntawm lub zog.

Kauj Ruam 9: Thov Txim Txog Qhov Kev Txhim Kho Dawb

Cov txheej dawb yuav tsum yog pob tshab dua. Ua tsaug ntau, Gimp, rau qhov muaj 20% qhov pom kev sib txawv hauv ntau qhov sib txawv.

Xijpeem, cia khoov ob ntawm 10K resistors hla qhov kawg ntawm lub nti thiab txuas lawv rau cov pins uas khoov ua ke. Ceev faj tsis txhob ntxhib heev nrog cov khoom tuab ntawm cov neeg tawm tsam, vim tias qhov me ntsis yog lub khob hlau npog nrog txheej xim. Nws yog qhov ua tau los txhuam cov xim thiab ua cov khoom luv! Kuv sim tsis txhob cia cov resistors kov lwm yam hlau.

Kauj ruam 10: Resistor Peb

Okay, koj puas paub ib khub ntawm cov ntiv tes nyob ntawm kaum ntawm lub nti uas peb tsis tau khoov ua ke? Tus pin qhia (tus pin 13, yog tias koj tab tom taug qab) yog qhov uas ob qho tib si ntawm ob lub resistors yuav txuas mus. Tsuas yog ua qhov ze tshaj tam sim no, txij li muaj lwm tus tiv thaiv peb tab tom yuav txuas ua ntej.

Kauj ruam 11: Tau Txais Loj

Tus tiv thaiv no tuaj yeem yog 20K, siab dua, lossis qis dua! Tiv thaiv kom saj!

Tus nqi loj dua tus tiv thaiv ntawm no yuav ua rau cov zis nrov dua. 47K, 100K, 220K, cov nqi tiv thaiv no yuav ua rau cov hluav taws xob hauv Circuit no nrov dua, mus txog rau qhov op op yuav tsis tuaj yeem tso tawm qhov hluav taws xob nws xav tau, thiab nws yuav kaw. Koj ua koj, tab sis op amp clipping yog lub suab hnyav.

Yog tias koj zoo siab nrog qhov ntsuas hluav taws xob ntawm cov khoom xa tuaj, koj tuaj yeem muaj qhov nce ntawm Circuit Court yog ib qho (ua tau zoo, tsis zoo ib yam, vim tias qhov kev hloov pauv no hloov lub teeb liab, tab sis rau lub suab 1 thiab -1 suab tib yam), uas txhais tau tias tus nqi tiv thaiv ntawm 20K lossis 22K yuav tsum yog qhov zoo tshaj plaws.

Yog tias koj xav kom lub voj voog no ua kom lub teeb liab ntsiag to rau qee qhov laj thawj, siv tus nqi qis dua tus tiv thaiv. 10K, 4.7K yog dab tsi?

Kauj Ruam 12: Yay, Tus Kuj Kuj Kawg Kawg

Nco ntsoov tus tiv thaiv peb tawm mus dai txhua tus kho siab? Tus resistor ntawd yuav ncab txoj kev hla ob tus pin uas tau tsaws hauv av thiab tus pin nruab nrab uas lub capacitor txuas nrog, thiab txuas mus rau tib qhov chaw (tus pin 13!) Raws li qhov nce resistor thiab lwm tus tiv thaiv ib yam nkaus.

Thiab nws yog lub sijhawm rau lub zog!

Kauj Ruam 13: Peb Tau Txais Lub Hwj Chim

Cia nqa hluav taws xob tiag rau hauv daim duab!

Kuv siv network cable xov hlau rau lub zog. Xim av lossis xim av yog ib txwm hauv av, ntsuab ib txwm tsis muaj zog thiab txiv kab ntxwv ib txwm muaj lub zog zoo. Siv kuv qhov system lossis tsim koj tus kheej, tab sis xaiv ib qho thiab ua raws nws! Koj tsis xav kom tsis meej pem tom qab thiab tawg ib pawg ntawm cov haujlwm!

Cov xaim av yuav tsum txuas mus rau nruab nrab txhais ceg ntawm lub hwj chim.

Qhov hluav taws xob tsis zoo yuav tsum tau mus rau tus pin 11 ntawm lub nti, tus khoov-khoov tus pin uas nyob ze rau ntawm txhais ceg-sab ntawm lub hwj chim.

Tsuas yog luam daim duab!

Kauj Ruam 14: Lub Hwj Chim Zoo

Nov yog qhov pom zoo ntawm qhov uas yuav tsum tau muab cov tsheb nqaj hlau muaj zog txuas mus. Peb yuav muab nws txuas rau tus pin 4 ntawm TL074.

Kuv cov phiaj xwm txhua tus siv +12 volts thiab -12 volts, thiab tau kawg. Qhov no hu ua bipolar fais fab mov, thiab muaj ntau heev hauv cov khoom siv hluav taws xob lossis cov khoom siv hluav taws xob. Kuv yuav nyiam qhia yuav ua li cas thiaj tsim lub zog siv hluav taws xob, tab sis ua haujlwm nrog tsev neeg tam sim no yog qhov txaus ntshai thiab koj tuaj yeem siv hluav taws xob rau koj tus kheej, yog li kuv tsuas yog qhia koj qhov kev qhia: daisy-saw cov khoom siv hluav taws xob tas li, thiab siv nruab nrab ntawm cov saw hlau koj lub hauv paus ntsiab lus. Tsis tas li, siv kev tswj hwm, hloov cov khoom siv hluav taws xob kom lawv yuav coj zoo thaum muaj qhov hluav taws xob luv.

Kauj Ruam 15: Cov Cim Sib Txawv

Saib ntawm no! Peb tau ua tiav!

Koj ob lub cim yuav nkag mus rau hauv Circuit Court ntawm no.

Tam sim no, txoj haujlwm no nyob ntawm no twb tau teeb tsa hauv tus qauv, qhov twg nws ploj mus ntawm ob oscillators. Cov tswv yim nkag tau yooj yim rau hauv ob qhov chaw teeb liab. Tab sis yog tias cov tswv yim ib txwm yuav raug txuas nrog, zoo li hauv cov qauv sib txuas lossis hauv lub tshuab ntaus suab paj nruag, koj yuav xav tau ntxiv cov neeg tawm tsam los ntawm cov tswv yim nkag mus rau hauv av. Ib qho nqi ntawm 10K txog 100K (lossis ntau dua!) Yuav zoo.

Ua li cas? koj nug.

Zoo, cov tswv yim ntawm TL074 yog qhov siab heev impedance, super siab impedance. Qhov ntawd txhais tau li cas yog tias nws yooj yim heev rau hloov qhov hluav taws xob ntawm qhov chaw ntawm Circuit Court, yog li txhua qhov tsis muaj hluav taws xob ntab nyob ib puag ncig hauv huab cua yuav hloov qhov hluav taws xob ntawm tus pin. TL074 kuj tseem muaj qhov cuam tshuam me ntsis, lub ntsiab lus tsis muaj lub teeb liab nkag mus rau hauv cov tswv yim, cov zis yuav tig mus rau qhov siab raws li nws tuaj yeem tswj hwm thiab tsuas yog zaum ntawm qhov ntawd. Tsis muaj txiaj ntsig.

Auj, huag, Kuv tsis hnov qab sau lo lus tso tawm ntawm qhov Circuit no. Okay, yog li pom tias vwm vwm tiv thaiv ceg uas tau khoov, ua raws? Qhov ntawd yog qhov tso tawm.

Kauj Ruam 16: Yog lawm, Nws yog

Yog tias koj xav hloov qhov no mus rau hauv Circuit Court uas tsis hloov pauv lub teeb liab, zoo li rau kev tswj hluav taws xob, koj tuaj yeem hloov pauv ntu ntu ntawm Circuit Court. Ua ntej tshaj, koj yuav tsum tsis muaj tus pin txuas rau ib leeg. Tom qab ntawd, hauv av rau ob qho ntxiv + tus lej nkag, tus pin 3 thiab 5, siv khub ntawm 10K tus tiv thaiv kab txuas ua ke ib yam nkaus li qib 7, txuas qhov sib tw xaus rau -pins input, pins 2 thiab 6. Ib ntawm 10K resistors hauv txhua khub yuav khoov thiab txuas rau cov pins tso tawm ntawm ob lub op amps, pins 1 thiab 7, thiab thaum kawg, cov tswv yim yuav yog los ntawm qhov txuas tsis sib txuas. Hauv qhov teeb tsa no, nws tsis tas yuav khi cov tswv yim rau hauv av los ntawm cov neeg tiv taus.

Vam tias txoj haujlwm no tau muaj txiaj ntsig zoo rau koj!