Cov txheej txheem:

7805 Regulator (5V) Module: Yooj Yim Qhia: 5 Kauj Ruam (nrog Duab)
7805 Regulator (5V) Module: Yooj Yim Qhia: 5 Kauj Ruam (nrog Duab)

Video: 7805 Regulator (5V) Module: Yooj Yim Qhia: 5 Kauj Ruam (nrog Duab)

Video: 7805 Regulator (5V) Module: Yooj Yim Qhia: 5 Kauj Ruam (nrog Duab)
Video: 7805 Voltage Regulator Circuit | 12v to 5v Stepdown Converter 2024, Kaum ib hlis
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7805 Regulator (5V) Module: Qhia yooj yim
7805 Regulator (5V) Module: Qhia yooj yim

Nyob zoo txhua tus, Nov yog qhov qhia yooj yim tshaj plaws uas kuv yuav qhia koj qhov pib ntawm 7805 tus tswj hluav taws xob.

Yuav luag tag nrho kuv cov phiaj xwm, suav nrog cov phiaj ci ci, Arduino cov haujlwm, thiab PCB raws cov phiaj xwm hluav taws xob, cov khoom siv hluav taws xob ntawm qib sib txawv xav tau. Tshwj xeeb yog 5 V DC cov khoom siv tau nquag siv, qee zaum ntau dua ib qho.

Yog li nws yuav yooj yim los ua cov phiaj xwm yog tias peb twb teeb tsa me me 5 V tus tswj hwm tus qauv.

7805 yog tsau hluav taws xob tswj hluav taws xob IC los ntawm 78XX tsev neeg. Lwm yam ntau yog 7809 thiab 7812 muab cov zis 9 V thiab 12 V feem. Nws yog qhov yooj yim los ua haujlwm vim tias nws tsuas muaj peb tus pin thiab ob peb yam khoom siv sab nraud xav tau.

Kauj ruam 1: Cov ntaub ntawv

Cov ntaub ntawv
Cov ntaub ntawv

Cov ntawv ntawm 7805 IC muab cov ntaub ntawv ua tiav txog nws suav nrog nws cov kev ua haujlwm, ntau hom pob khoom, teeb tsa thiab pom zoo ua haujlwm raws li lwm yam.

Cov ntawv qhia peb tias

  1. IC los hauv cov pob sib txawv xws li TO 220, TO 3, SOT 223, TO 92 thiab TO 252 uas SOT 223 thiab TO 252 yog SMD thiab lwm qhov yog Hom-hla nrog cov coj ntev.
  2. Pom zoo qhov hluav taws xob ntau (Vi) ntau yog los ntawm 7 V DC txog 25 V DC.
  3. Nws tuaj yeem muab cov zis tam sim no mus txog 1.5 Amperes.
  4. Nws muaj peb tus pin/coj cov tswv yim hluav taws xob (Vi), Hauv av/ib txwm thiab tso zis hluav taws xob (Vo). Tus pin nquag yog qhov nruab nrab uas yuav tsum tau txuas nrog hauv av rau ob qho tib si kev nkag thiab tso tawm.
  5. Thiab qhov tseem ceeb tshaj plaws los ntawm cov ntawv teev tseg yog hais txog cov khoom siv sab nraud, kev tawm tswv yim, thiab cov peev txheej tso tawm. Peb yuav tsum txuas, raws li cov ntawv teev tseg, lub lim dej lim dej ntawm lub tswv yim thiab lub lim dej lim thiab lub lim qis dhau ntawm cov zis.
  6. Txij li nws yog tus tswj hwm txoj kab (ib qho uas ua rau lub zog tsis xav tau hla nws qhov kev sib txuas ua cua sov), pob ntawv feem ntau muaj ib feem rau txuas lub dab dej sov rau qhov hloov pauv cua sov.

Kauj ruam 2: Sau cov khoom

Sau Cov Khoom
Sau Cov Khoom
Sau Cov Khoom
Sau Cov Khoom
Sau Cov Khoom
Sau Cov Khoom
Sau Cov Khoom
Sau Cov Khoom

Txhawm rau ua qhov yooj yim thiab me me tswj tus qauv peb xav tau:

  1. Ib qho PCB thoob ntiaj teb lossis qee zaum hu ua perf board/Vero board/dotted PCB.
  2. LM 7805 IB.
  3. 10 uF capacitor.
  4. 100 uF capacitor.
  5. 0.1 uF capacitor.
  6. Cov xaim me me.

Kauj Ruam 3: Txiav PCB thiab Muab Cov Khoom Txhim Kho

Txiav PCB thiab Muab Tshuaj Txhuam Txhuam
Txiav PCB thiab Muab Tshuaj Txhuam Txhuam
Txiav PCB thiab Muab Tshuaj Txhuam Txhuam
Txiav PCB thiab Muab Tshuaj Txhuam Txhuam
Txiav PCB thiab Muab Tshuaj Txhuam Txhuam
Txiav PCB thiab Muab Tshuaj Txhuam Txhuam

Peb tuaj yeem ua tus qauv yooj yim ua raws cov theem hauv qab no.

  • Txiav ib qho me me ntawm PCB.
  • Mount IC thiab cov laug.
  • Mount 10 uF capacitor nyob rau hauv pem hauv ntej ntawm 7805 thiab muab cov hlau lead coj los ua ke.
  • Txuas cov hlau lead zoo (qhov ntev tshaj plaws) rau thawj tus pin ntawm 7805.
  • Txuas cov hlau lead tsis zoo (luv luv) mus rau tus pin nruab nrab (pin2) ntawm 7805.
  • Mount 100 uF capacitor nyob tom qab ntawm 7805 thiab cov laug.
  • Tam sim no txuas tus pin zoo ntawm tus capacitor rau tus pin 3 ntawm 7805 thiab txuas tus pin tsis zoo ntawm tus capacitor mus rau tus pin 2 ntawm IC.
  • Mount lub 0.1 uF capacitor sib npaug rau 100 uF capacitor thiab muab cov hlau txuas ua ke mus rau cov hlau lead.

koj tuaj yeem xa cov duab txuas mus rau theem no kom paub meej ntxiv.

Kauj Ruam 4: Txuas Cov Hluav Taws Xob

Txuas Cov Xov
Txuas Cov Xov
Txuas Cov Xov
Txuas Cov Xov

Tam sim no peb yuav tsum txuas cov xov hlau rau cov tswv yim thiab tso tawm.

  • Siv cov xaim xaim xiav rau tus pin2 (nruab nrab ib qho) ntawm 7805 thiab muab cov xaim liab txuas rau tus pin 1, ob qho tib si rau cov tswv yim.
  • Muab cov xaim dub txuas rau tus pin2 (ib nrab) ntawm 7805 thiab muab cov xaim liab txuas rau tus pin 3, ob qho tib si rau cov zis.

Kauj Ruam 5: Kuaj Circuit Court

Kuaj Circuit Court
Kuaj Circuit Court
Kuaj Circuit Court
Kuaj Circuit Court

Rau kev sim lub Circuit Court, peb yuav tsum txuas lub roj teeb 9 V rau nws cov tswv yim thiab nws cov zis yuav tsum txuas nrog lub multimeter.

Thiab thaum kawg, peb tau ua qhov yooj yim 9 V tus tswj hwm tus qauv uas muaj txiaj ntsig zoo hauv lub khob cij thiab Arduino cov phiaj xwm thiab kev sim.

Ceev faj: Rau daim ntawv thov uas cuam tshuam nrog cov khoom siv hluav taws xob siab, IC tuaj yeem ua kom sov, yog li peb yuav tsum txuas lub dab dej sov

Xav tias dawb siv lub npov lus hauv qab no rau qhov ua xyem xyav thiab tau kawg cov lus tawm tswv yim.

Ua tsaug:)

Pom zoo: