Cov txheej txheem:

CMOS FREQUENCY COUNTER: 3 Kauj Ruam
CMOS FREQUENCY COUNTER: 3 Kauj Ruam

Video: CMOS FREQUENCY COUNTER: 3 Kauj Ruam

Video: CMOS FREQUENCY COUNTER: 3 Kauj Ruam
Video: {574} CMOS 12-Stage Ripple Carry Binary Counters, Binary Counter. Frequency Divider IC/ Test CD4040 2024, Kaum ib hlis
Anonim
CMOS FREQUENCY COUNTER
CMOS FREQUENCY COUNTER

Nov yog phau ntawv qhia suav nrog PDFs thiab cov duab ntawm yuav ua li cas kuv tsim kuv tus kheej Zaus txee rau kev lom zem tawm ntawm kev xav tsis sib xws. Kuv yuav tsis nkag mus rau qhov nthuav dav ntawm yuav ua li cas kuv ua lub rooj sib tham hauv xov tooj lossis yuav ua li cas xaim nws tab sis cov phiaj xwm tau ua hauv KICAD uas yog software dawb uas tso cai rau koj ua koj cov phiaj xwm ntawm qib kev tshaj lij PCB. xav tias dawb los theej lossis siv cov ntaub ntawv no los ua phau ntawv qhia siv. qhov no yog kev kawm paub ua haujlwm zoo, Kuv pom tias nws yog kev taug kev zoo siab thiab mob taub hau tag tib lub sijhawm tab sis txoj haujlwm no siv ntau yam txuj ci kawm hauv chav kawm tsim qauv digital. qhov no yuav yog txhua yam ua tiav nrog ib tus tswj hwm micro thiab ob peb sab sab. tab sis dab tsi yog qhov lom zem hauv qhov haha!

Kauj Ruam 1: Tsim Tus Qauv Zaus Siv Discrete CMOS Logic Chips

Tsim Kev Txheeb Zis Siv Discrete CMOS Logic Chips
Tsim Kev Txheeb Zis Siv Discrete CMOS Logic Chips

Yog li ntawv qhia, kuv tsim, txuas, thiab sim qhov Circuit no. Kuv tau ua tiav feem ntau ntawm kev ua haujlwm hauv NI multisim thiab siv cov kev sim los tsim cov qauv feem ntau. tom qab ntsuas hauv ntau lub zeem muag, tom qab ntawd kuv tau tsim qhov kev ntsuas Circuit hauv daim mus rau lub rooj mov ci, qhov no yog kom ntseeg tau tias txhua feem ua haujlwm tau zoo, qhov no yog mob taub hau tiag tiag thiab coj kuv yuav luag ib lub lis piam kom tau txais thawj qhov ua tiav. Hauv cov kauj ruam tom ntej kuv yuav suav nrog BOM (Daim nqi ntawm cov ntaub ntawv) thiab daim duab thaiv ntawm kev tsim qauv thiab tom qab ntawd mus rau hauv kev nthuav dav ntawm yuav ua li cas nws tau muab tso ua ke. Kuv tsis tau siv cov txheej txheem los ua qhov no, Kuv tsuas yog nyeem cov ntawv txheeb rau cov chipsets thiab sim sim thiab sim txhua nti rau qhov ua haujlwm raug. Txoj haujlwm no muaj 4 lub ntsiab lus tseem ceeb uas txhua tus tau sib koom ua ke hauv qhov kev sib dhos zaum kawg uas yuav tau hais tseg hauv daim duab kab thaiv. Kuv siv cov thaiv no los piav qhia yuav ua li cas nws txhua yam yuav raug teeb tsa thiab tsim.

  1. Timing moduleA Pierce oscillator Circuit nrog xtal (siv lead ua) oscillating ntawm 37.788 kHz tau pub rau hauv CD4060B (14-theem ripple nqa binary counter thiab faib zaus), qhov no ua rau 2Hz teeb liab. Lub teeb liab ntawd raug xa mus rau hauv JK flip flop teeb tsa rau hom toggle. Qhov no yuav txo nws hauv ib nrab rau 1Hz square yoj. lub teeb liab xa mus rau lwm qhov JK flip flop thiab faib rau 0.5Hz (1 thib ob ntawm 1 thib ob tawm). qhov no yuav yog lub sijhawm tseeb hauv paus los teeb tsa peb lub moos ua haujlwm txhawm rau "hlais" ib qho piv txwv thib ob ntawm cov khoom nkag. Qhov no yog qhov tseem ceeb yog ib qho me me ntawm cov noob taum uas yuav tsum tau suav rau lub sijhawm ib pliag.
  2. Synchronous kaum xyoo counter Lawv yog ob lub ntsiab lus tseem ceeb kom nkag siab txog yuav suav pes tsawg zaus. Lub teeb liab nkag yuav tsum yog lub voos xwmfab, thiab tseem sib xws rau qib kev xav ntawm cov chips. Kuv siv lub tshuab hluav taws xob ua haujlwm ntawm kuv lub rooj zaum lab tab sis ib tus tuaj yeem tsim kho nrog 555 lub sijhawm thiab JK lossis D flip flop teeb tsa raws li kev faib zaus. lub tswv yim thib ob siv 0.5Hz teeb liab los pab ntsuas lub plawv dhia kom tawm ntawm lub qhov rooj THIAB rau ib ntus thib ob. thiab thaiv nws thaum nws mus logic LOW. qhov mem tes no tawm ntawm lub qhov rooj THIAB nkag mus rau kaum xyoo suav ntawm lub moos sib dhos. cov suav suav ua haujlwm zoo li cov suav thiab siv cov khoom nqa thiab ua haujlwm tau piav qhia hauv Cov Ntawv Qhia rau CD4029.
  3. Pib dua Lub voj voog yuav tsum tau rov pib dua txhua 2 vib nas this los ua piv txwv zaus thiab tsis tau txais kev nyeem ua ke ntawm cov zaub. peb xav kom nws rov pib dua cov suav rau xoom ua ntej daim ntawv tom ntej los lossis nws yuav ntxiv rau tus nqi yav dhau los. uas tsis yog txhua yam uas nthuav! Peb ua qhov no Los ntawm kev siv D flip flop wired kom rov qab thiab peb moos 0.5 Hz teeb liab rau hauv lub moos uas tau muab tso rau hauv Pre set teeb tsa pins ntawm lub xyoo caum txee. qhov no teeb tsa txhua tus suav rau xoom rau ob vib nas this thiab tom qab ntawd nce siab rau 2 vib nas this. yooj yim tab sis zoo tsis yog qhov no tseem tuaj yeem ua nrog JK flip flop tab sis kuv nyiam qhia ob txoj hauv kev ua tib yam. Qhov no yog txhua yam rau kev lom zem thiab kev kawm tus kheej yog li xav tias yuav hloov pauv!
  4. SEGMENTS LED Qhov zoo tshaj plaws tau khaws tseg rau qhov kawg! Classic 7 ntu qhia thiab tus tsav tsav tsheb Kuv pom zoo kom tsim qhov no ib puag ncig cov ntaub ntawv ntawm 7 ntu ntu thiab tus tsav tsheb nti. Koj yuav tsum tau ua tib zoo saib xyuas qhov sib txawv ntawm cov cathode lossis anode. lub nti kuv siv yuav xav tau siab lossis qis nyob ntawm LEDs koj xaiv los siv thiab raws li kev coj ua zoo 220 ohm resistors tau siv los txwv tam sim no muaj qee qhov kev hloov pauv nws yog qhov zoo tshaj plaws los xa mus rau cov ntaub ntawv tsis muaj leej twg yog qhov tiag ntse cov lus teb txhua qhov dag hauv Cov Ntaub Ntawv. Thaum tsis ntseeg nyeem nws ntau npaum li koj tuaj yeem ua tau.

Kauj Ruam 2: Thaiv Daim Duab

Thaiv daim duab
Thaiv daim duab

Qhov txuas ntxiv no Tsuas yog pom ntawm daim duab thaiv. Nws yog lub tswv yim zoo los saib qhov no thaum koj tab tom tsim ib yam dab tsi los txiav qhov teeb meem ua tej daim.

Kauj Ruam 3: Lub Sijhawm Pib thiab Schematics

Sijhawm Pib thiab Schematics
Sijhawm Pib thiab Schematics
Sijhawm Pib thiab Schematics
Sijhawm Pib thiab Schematics
Sijhawm Pib thiab Schematics
Sijhawm Pib thiab Schematics
Sijhawm Pib thiab Schematics
Sijhawm Pib thiab Schematics

o-Scope qhia yuav ua li cas cov zis yuav tsum zoo li piv rau lub sijhawm pib.

Qhov kev siv hluav taws xob no siv cd 4060 txuas nrog raws li pom hauv daim duab xa mus rau PDF rau daim duab tag nrho

cov Chips siv hauv Circuit no yog

  • 3 tx4029
  • 1 tx4081
  • 1 tx4013
  • 1 tx4060
  • 1 tx4027
  • 3 tx4543
  • 21 X 220 ohm RESISTORS
  • 3 X 7 SEGEMNT LED DISPLAYS
  • 37.788 KHZ CRYSTAL
  • 330K OHM RESISTOR
  • 15M OHM RESISTOR
  • 18x 10K 8 PIN RESITOR NETWORK (RECOMENDED)
  • QHOV HOOKUP QHOV TSEEB yog siv lub BREAD BOARD
  • Ntau BREAD BOARDS

RECCOMENDED QHOV TSEEB

  • QHOV TSEEB ZOO TSHAJ PLAWS
  • O-SCOPE
  • FUNCTION GENERATOR
  • MULTI-METER
  • PLIERS

RECOMENDED DESIGN SOFTWARE

  • KICAD
  • NImultisim

Pom zoo: