Txawb Xov Tooj Hluav Taws Xob: 13 Kauj Ruam

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

Luam Circuit Board

Kauj Ruam 1: QHOV TSEEB RAU Xov Tooj Ntawm Tes Xov Tooj Ntawm Tes

Lub Xov Tooj Ntawm Tes Txawb Xov Tooj yog lub cuab yeej uas tuaj yeem txheeb xyuas qhov muaj ntawm txhua lub xov tooj ntawm tes uas nyob hauv ib puag ncig thiab muab qhov taw qhia ntawm lub xov tooj ntawm tes uas nquag siv nyob ib puag ncig. Lub Xov Tooj Ntawm Tes Xov Tooj yog qhov tseem ceeb ntawm Kev Tshawb Fawb lossis Tam Sim No rau Kev Siv Hluav Taws Xob Hloov Pauv, uas txheeb xyuas zaus ntawm 0.8 thiab 3.0 GHz (Txawb Xov Tooj Zaus). RL qhov sib npaug ntawm Circuit (Resistor – Inductor Circuit) tsis zoo rau kev txheeb xyuas ntawm RF cov cim hauv GHz ntau.

Lub Xov Tooj Hluav Taws Xob Hluav Taws Xob no yuav txheeb xyuas kev hu / tawm, hu xov tooj, sib tham hauv video thiab ib qho SMS lossis GPRS siv tsis pub dhau 1 meter ib puag ncig. Lub voj voog no tseem muaj txiaj ntsig zoo txhawm rau txheeb xyuas lub xov tooj ntawm tes hauv thaj chaw txwv xws li chav kuaj mob, chav sib tham, tsev kawm ntawv, thiab lwm yam. Nws tseem muaj txiaj ntsig thaum tshawb pom kev siv tsis raug cai lossis kev saib xyuas nrog Lub Xov Tooj Txiag. Nws tuaj yeem txheeb xyuas lub xov tooj ntawm tes xa xov hluav taws xob RF thiab ua rau Buzzer tsim lub suab nrov nrov, txawm hais tias lub xov tooj nyob twj ywm hauv hom uas ntsiag to thiab lub kaw lus ceeb toom no tseem txuas ntxiv mus kom txog rau thaum cov teeb liab RF tuaj.

Kauj Ruam 2: YUAV TSUM TAU:

• Op-Amp CA3130 x 1
• 2.2M resistor x 2
• 100K resistor x 1
• 1K resistor x 3
• 100 nF capacitor x 4
• 22pF capacitor x 2
• 100uF capacitor x 1
• 9 V Fais Fab Khoom
• Roj teeb Jack
• LED
• Transistor BC547 x 1
• Transistor BC557 x 1
• Buzzer
• Kav hlau txais xov

Kauj Ruam 3: Op-Amp CA3130

CA3130 tuaj yeem ua haujlwm hauv Ib qho hluav taws xob nkaus xwb lossis hauv ob hom khoom. Txog tam sim no cia mloog zoo rau ntawm +5V muab hluav taws xob hluav taws xob vim tias qhov no yog qhov siv ntau tshaj plaws tsim rau digital circuits. Hauv hom no, VCC + (tus pin 8) txuas nrog + 5V muab qhov hluav taws xob thiab VCC (tus pin 4) yog hauv av los tuav nws ntawm 0V lub peev xwm.

CA3130 Cov Lus Qhia Tshwj Xeeb

Op-amp txuas nrog MOSFET ntawm qhov tso tawm

Cov khoom siv fais fab dav

1. Singe mov - 5V txog 16V
2. Muab khoom siv - ± 2.5V txog ± 8V

• Cov tswv yim Terminal tam sim no: 1mA
• Qhov Siab Tshaj Tawm Tshaj Tawm: 13.3V
• Qhov siab tshaj tam sim no: 22mA
• Qhov siab tshaj tam sim no: 20mA
• Muab khoom tam sim no: 10mA
• Hom Kev Tsis Txaus Siab Li Cas (CMRR): 80dB

Cov ntawv thov

• Zaus Generator/Distorter
• Txawb jammers
• Voltage follower circuits
• DAC cov kab hluav taws xob
• Peak Signal/Lub suab nrov nrov
• Cov oscillator circuits

Kauj Ruam 4: TRANSISTOR BC547

BC547 yog NPN transistor vim li no tus sau thiab emitter yuav raug qhib sab laug (Rov qab tsis ncaj ncees) thaum lub hauv paus tus pin tuav hauv av thiab yuav raug kaw (Forward biased) thaum lub teeb liab tau muab rau tus lej pin. BC547 muaj tus nqi nce ntawm 110 txog 800, tus nqi no txiav txim siab lub peev xwm ntawm lub transistor. Qhov siab tshaj plaws tam sim no uas tuaj yeem ntws los ntawm Tus pin Collector yog 100mA, yog li peb tsis tuaj yeem txuas cov khoom siv uas siv ntau dua 100mA siv cov transistor no. Txhawm rau tsis ncaj ncees rau transistor peb yuav tsum muab tam sim no rau tus pin, qhov tam sim no (IB) yuav tsum txwv rau 5mA.

Thaum cov transistor no muaj kev ncaj ncees tag nrho nws tuaj yeem tso cai siab tshaj 100mA kom ntws hla tus neeg sau thiab tso tawm. Cov theem no hu ua Saturation Region thiab qhov ntsuas hluav taws xob raug tso cai hla Collector-Emitter (VCE) lossis Base-Emitter (VBE) tuaj yeem yog 200 thiab 900 mV feem. Thaum lub hauv paus tam sim no raug tshem tawm cov transistor tau ua tiav, theem no hu ua "Cut-off Region" thiab "Base Emitter voltage" tuaj yeem nyob ib puag ncig 660 mV. BC547 li Hloov

Thaum lub transistor siv los ua qhov hloov pauv nws tau ua haujlwm hauv Saturation thiab Cut-Off Region raws li tau piav qhia saum toj no. Raws li tau tham txog transistor yuav ua raws li Qhib hloov thaum Mus Rau Qhov Tsis Ncaj Ncees thiab raws li kaw qhov hloov pauv thaum Lub Sij Hawm Rov Qab, Qhov kev tsis ncaj ncees no tuaj yeem ua tiav los ntawm kev muab qhov xav tau tam sim no rau tus pin pin. Raws li tau hais tseg, kev tsis ncaj ncees tam sim no yuav tsum siab tshaj 5mA. Txhua yam ntau dua 5mA yuav tua Transistor; li no tus tiv thaiv ib txwm ntxiv hauv koob nrog tus lej pin. Tus nqi ntawm tus tiv thaiv no (RB) tuaj yeem suav nrog siv cov qauv hauv qab no. RB = VBE / IB Qhov twg, tus nqi ntawm VBE yuav tsum yog 5V rau BC547 thiab Lub hauv paus tam sim no (IB nyob ntawm tus sau tam sim no (IC). Tus nqi ntawm IB yuav tsum tsis pub tshaj mA. BC547 li Amplifier A Transistors ua raws li Amplifier thaum Nws tuaj yeem ua kom muaj zog, qhov hluav taws xob thiab tam sim no ntawm kev teeb tsa sib txawv.

Common emitter amplifierCommon collector amplifierCommon base amplifierOf cov hom saum toj no ntau hom emitter yog nrov thiab feem ntau siv teeb tsa. Thaum siv los ua Amplifier DC qhov tau txais tam sim no ntawm Transistor tuaj yeem suav los ntawm kev siv cov qauv hauv qab no DC Tam Sim No Tau Txais = Tam Sim No Tam Sim No (IC) / Pib Tam Sim No (IB)

Kauj ruam 5: Resistors

• 2.2M resistor x 2
• 100K resistor x 1
• 1K resistor x 3

Kauj Ruam 6: Capacitors

• 100 nF capacitor x 4
• 22pF capacitor x 2
• 100uF capacitor x 1

Kauj Ruam 7: Barrel Jack

Kauj Ruam 8: 9V DC Fais Fab Khoom

Kauj Ruam 9: TRANSISTOR BC 557

Nta / Kev Qhia Tshwj Xeeb:

• Hom Pob: TO-92
• Hom Transistor: PNP
• Max Collector Tam sim no (IC): -100mA
• Max Collector -Emitter Voltage (VCE): -45V
• Max Collector -Base Voltage (VCB): -50V
• Max Emitter -Base Voltage (VBE): -5V
• Max Collector Dissipation (Pc): 500 Milliwatt
• Max Hloov Zaus (fT): 100 MHz
• Yam tsawg kawg & Siab Tshaj DC tam sim no nce (hFE): 125 txog 800
• Max Cia & Ua haujlwm kub yuav tsum yog: -65 txog +150Centigrade

Kauj ruam 10: Schematic

Kauj Ruam 11: PCB Txheej Txheem

Kauj Ruam 12: 3D Saib ntawm PCB

Kauj Ruam 13: Hais kom cov PCBs Los Ntawm JLCPCB

Cov Txheej Txheem Tag Nrho tau qhia siv Screenshots Step-wise

Tam sim no peb tau txais PCB tsim thiab nws yog lub sijhawm los xaj cov PCB. Txog qhov ntawd, koj tsuas yog yuav tsum mus rau JLCPCB.com, thiab nyem rau ntawm "QUOTE NOW" khawm.

JLCPCB kuj yog tus txhawb nqa txoj haujlwm no. JLCPCB (ShenzhenJLC Electronics Co., Ltd.), yog lub tuam txhab PCB loj tshaj plaws hauv Suav teb thiab cov tuam txhab tsim khoom lag luam tshwj xeeb tshwj xeeb hauv PCB sai sai thiab tsim cov PCB me me. Koj tuaj yeem xaj yam tsawg kawg ntawm 5 PCBs rau tsuas yog $ 2.

Txhawm rau kom tau txais PCB tsim, xa cov ntaub ntawv gerber koj rub tawm hauv cov kauj ruam kawg. Rub cov ntaub ntawv.zip lossis koj tseem tuaj yeem rub thiab poob cov ntaub ntawv gerber.

Tom qab xa cov ntawv zip, koj yuav pom cov lus ua tiav hauv qab yog tias cov ntawv tau ua tiav tiav.

Koj tuaj yeem tshuaj xyuas PCB hauv Gerber tus saib kom paub tseeb tias txhua yam zoo. Koj tuaj yeem saib ob sab saum toj thiab hauv qab ntawm PCB. Tom qab ua kom ntseeg tau tias peb cov PCB zoo, tam sim no peb tuaj yeem tso qhov kev txiav txim ntawm tus nqi tsim nyog. Koj tuaj yeem xaj 5 PCBs rau tsuas yog $ 2 tab sis yog tias nws yog koj thawj xaj ces koj tuaj yeem tau txais 5 PCBs rau $ 2.

Txhawm rau txiav txim, nyem rau ntawm "SAVE TO CART" khawm. Kuv cov PCBs tau siv 2 hnub los tsim khoom thiab tuaj txog hauv ib lub lis piam siv DHL qhov kev xaiv xa khoom. PCBs tau ntim tau zoo thiab qhov ua tau zoo tiag tiag.