DIY NE555 Circuit Court los Tsim Sine Wave: 6 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Cov ntawv qhia no qhia koj txog yuav ua li cas DIY ib qho NE555 Circuit Court los tsim hluav taws xob sine. Qhov khoom siv DIY pheej yig no muaj txiaj ntsig zoo rau koj kom nkag siab yuav ua li cas cov khoom siv hluav taws xob tuaj yeem ua haujlwm nrog cov neeg tiv thaiv kom tswj lub sijhawm them nyiaj thiab tso tawm lub sijhawm uas tsim kom muaj lub sine yoj. Yog tias koj yog tus tshiab hauv cov khoom siv hluav taws xob thov xa mus rau Resistor Paub thiab Capacitor Paub kom paub ntxiv

Cov ntaub ntawv tsim nyog:

3 x 1k ohm resistors

2 x 100k ohm resistors

1 x 15k ohm resistor

3 x 10k ohm resistors

1 x 1M ohm resistor

1 x 4.7k ohm resistor

1 x IN 4007 diode

2 x NPN transistors

1 x Potentiometer

2 x 4.7μF electrolytic capacitors

4 x 104 ceramic capacitors

6 x pin header

1 x NE555 IC

Kauj Ruam 1: Kauj Ruam 1: Muab cov neeg tawm tsam rau PCB

Ntxig cov resistors cuam tshuam rau hauv cov ntawv luam tawm

Circuit Board (PCB) feem. Thov ua siab zoo nco ntsoov tias tus nqi tiv thaiv sib xws tau luam tawm ntawm PCB zoo li 10k hauv ib lub duab plaub. Koj yuav tsum txheeb xyuas thiab txheeb xyuas qhov tsis kam ua ntej koj ua cov kauj ruam no. Muaj ob txoj hauv kev los tshuaj xyuas qhov tsis kam ntawm tus tiv thaiv, ib qho yog nyeem cov xim xim los ntawm nws lub cev, lwm qhov yog qhov sib txawv ntau dua uas siv lub multimeter los ntsuas nws tawm ncaj qha. Txawm li cas los xij, nyeem cov lej xim tsis yog teeb meem, piv txwv li, tus nqi tiv thaiv ntawm tus tiv thaiv hauv daim duab saum toj no yog 10k ohms. Yuav ua li cas thiaj paub tias? Raws li peb pom tau tias, 1st xim band yog xim av uas sawv cev rau tus lej 1, thib 2 thiab thib peb xim thib ob yog xim dub uas sawv cev rau 0, thiab pawg thib 4 yog liab uas sawv cev rau 100, cia peb txuas lawv ua ke thiab peb tau txais 100 x 100 = 10000 ohms = 10k ohms Qhov xim thib 5 txhais tau tias ua siab ntev ntawm tus tiv thaiv uas yog xim av sawv cev rau ± 1%. Yog li, qhov loj nqa mus peb tuaj yeem tau txais los ntawm cov lej xim yog qhov muaj peev xwm tiv taus thiab ua siab ntev. Hauv qhov no qhov kev tiv thaiv ntawm tus tiv thaiv yog 10k ohms, kev ua siab ntev yog ± 1%. Yog xav paub ntau ntxiv txog kev nyeem xim xim los ntawm tus tiv thaiv thov mus rau Nyeem Xim Xim.

Ntxig cov resistors rau hauv PCB ib tus los ntawm ib qho raws li qhia hauv daim duab saum toj no. Tom qab siv lawv nrog cov chaw siv hlau txuas, txiav tawm qhov tsis tseem ceeb ntawm cov pins.

Kauj Ruam 2: Kauj Ruam 2: Muab cov Capacitors rau PCB

Ntxig lub diode thiab cov capacitors rau hauv PCB thiab muab tshuaj txhuam rau lawv.

Kauj Ruam 3: Kauj Ruam 3: Muab lub NE555 IC rau PCB

Cov kauj ruam no nyuaj me ntsis kom ua tiav raws li thaum koj tab tom sim muab cov pins ntawm IC tso rau sab nraum qab ntawm PCB lub IC tuaj yeem xoob thiab poob rau saum rooj. Txog thaum koj nce PCB nrog qhov tuab me me xws li ua npuas ncauj raws li qhia hauv qab no koj yuav tau txais nws kom npaj tau kom zoo. tib txoj kev coj.

Kauj Ruam 4: Kauj Ruam 4: Muab cov NPN Transistors thiab Header Pins rau PCB

Lub tiaj tiaj ntawm NPN transistor yuav tsum yog nyob rau tib sab ntawm txoj kab uas hla ntawm ib nrab ib nrab luam tawm ntawm PCB.

Kauj Ruam 5: Kauj Ruam 5: Muab cov Electrolytic Capacitors thiab Potentiometer rau PCB

Pleas nco tias electrolytic capacitors muaj polarity. TSIS TXHOB txuas rov qab lossis cov capacitors yuav xaus rau kev foob pob. Cov ceg ntev ntawm electrolytic capacitor yog anode thaum luv ceg yog cathode. Yog tias ib tus neeg tau txiav cov ceg, sim nrhiav cov xim dawb ntawm lub cev lub cev. Tus pin nyob ze rau cov xim dawb yuav yog qhov tsis zoo, tus pin cathode.

Kauj Ruam 6: Txheeb Xyuas

Txog tam sim no qhov tseem ceeb tau ua tiav zoo. Cov kauj ruam tom ntej yog txhawm rau txuas qhov hluav taws xob ntawm 5V txog 9V nrog lub rooj tsav xwm hauv Circuit Court. Los ntawm kev txuas lub hau rau tus lej sib txuas lub taub hau, koj yuav tuaj yeem tau txais lub voos xwmfab, sawtooth nthwv dej, daim duab peb sab yoj thiab sine yoj feem.

Qhov tseeb, thawj nthwv dej tawm ntawm NE555 Circuit Court yog square yoj. Yuav ua li cas tig lub xwmfab yoj mus rau qhov sib txawv ntawm cov yoj? Nov yog qhov uas cov resistors thiab cov capacitors tuaj ua si. Cov neeg tiv taus muaj peev xwm txwv cov dej ntws tam sim no hla, thaum cov capacitors muaj peev xwm khaws lub zog. Cov Capacitors tuaj yeem koom tes nrog cov neeg tawm tsam los tswj kev them nqi thiab tawm tus nqi ntawm cov capacitors uas los txiav cov nthwv dej kom sib txawv.

Cov duab hauv qab no yog RC cov kab hluav taws xob sib txuas ua ke los tsim cov nthwv dej. Thaum lub xwmfab nthwv dej hla hla R5 thiab C7, los ntawm tsab xov xwm no, peb tuaj yeem pom tias qhov nkhaus tso tawm rau RC tso tawm Circuit yog qhov nthuav dav, yog li RC Circuit tsim los ntawm R5 thiab C7 hloov pauv plaub fab rau sawtooth yoj. Ib yam li ntawd, R6 thiab C8 hloov lub sawtooth yoj mus rau daim duab peb sab yoj, R7, R9 thiab C9 hloov pauv daim duab peb sab rau sine wave.

Kom tau txais cov khoom siv DIY pheej yig no rau kev kawm thov mus rau mondaykids.com