Ntxiv-rho 5V Khoom Los Ntawm 9V Roj Teeb (Ntu-1): 5 Kauj Ruam

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

Hav sawv daws! Kuv rov qab nrog lwm tus qhia.

Op-amps xav tau ob-polarity mov rau kev ua haujlwm kom raug. Thaum ua haujlwm nrog cov khoom siv roj teeb, nws nyuaj ua kom tau txais lub zog hluav taws xob ob zaug rau op-amps. Tshaj tawm ntawm no yog qhov yooj yim Circuit Court uas muab ± 5V los ntawm roj teeb 9V.

Kauj Ruam 1: Yuav Tsum Kho Vajtse

Cov hauv qab no tau siv:

1. X1 IC 7805 Voltage regulator.

2. X1 IC L7660 Voltage converter.

3. X1 9V roj teeb

4. X1 Capacitor C1 470uF, 25V electrolytic

5. X1 Capacitor C2 2.2uF, 16V electrolytic.

6. X2 Capacitor C2 thiab C3 10uF 16V electrolytic.

7. X1 3 Tus pin txuas CON2 (Cov zis sab)

8. X1 2 tus pin txuas CON1 (Cov tswv yim sab)

Kauj Ruam 2: Circuit Schematic & Ua Haujlwm

Cov duab saum toj no qhia txog cov phiaj xwm hluav taws xob ntawm Plus-rho 5V Cov Khoom los ntawm 9V Roj Teeb Siv Eagle software. Nws tau tsim nyob ib puag ncig 9V roj teeb (BATT.1), tus tswj hluav taws xob IC 7805DT (IC1), CMOS hloov hluav taws xob ICL7660CPA (IC2) thiab ob peb yam ntxiv. Voltage regulator IC1 hloov 9V roj teeb nkag mus rau hauv kev tswj 5V. Qhov 5V tso tawm los ntawm IC1 tau muab rau tus pin 8 ntawm IC2. IC2 thiab cov khoom siv hluav taws xob C3 thiab C4 tsim qhov hluav taws xob inverter ntu uas hloov +5V rau -5V. Hloov -5V mov muaj nyob ntawm tus pin 5 ntawm IC2. Hloov pauv ± 5V khoom yog li muaj nyob ntawm txuas CON2.

Kauj Ruam 3: PCB Tsim

Cov duab qhia pom Circuit Court PCB Tsim Ntxiv-rho 5V Kev Siv Eagle software.

Parameter txiav txim siab rau PCB tsim:

1. Kab dav tuab yog yam tsawg kawg yog 8 mil.

2. Qhov sib txawv ntawm lub dav hlau tooj liab thiab tooj liab yog qhov tsawg kawg yog 8 lab.

3. Qhov sib txawv nruab nrab ntawm txoj kab rau kab laum yog yam tsawg kawg ntawm 8 mil.

4. Qhov me me qhov loj me yog 0.4 hli

5. Txhua txoj kab uas muaj txoj hauv kev tam sim no xav tau cov kab tuab.

Kauj Ruam 4: Xa Gerber rau Kev Tsim Khoom

Koj tuaj yeem kos PCB Schematic nrog ib qho software raws li koj qhov yooj yim. Nov kuv muaj kuv tus kheej tsim thiab Gerber cov ntawv txuas nrog. Tom qab koj tsim cov ntaub ntawv Gerber koj tuaj yeem xa nws lossis xa nws mus rau PCB chaw tsim khoom.

Kuv ib txwm nyiam LIONCIRCUITS, lawv muaj tus nqi qis tus qauv kev pabcuam thiab kuv tau txais cov laug cam ntawd tsuas yog 6 hnub. Lawv lub platform yog cov neeg siv yooj yim heev, Kuv tsuas yog tso cov ntaub ntawv Gerber thiab so tag nrho yog saib xyuas los ntawm lawv. Lawv muab sijhawm raws sijhawm ntawm txoj haujlwm ntawm lawv lub platform. Lawv tau ua PCB kev tsim khoom yooj yim heev rau kuv.

Kauj ruam 5: Tos rau Fabricated Boards

Kuv yuav sau ntu-2 ntawm qhov tsis txaus ntseeg nyob rau lub asthiv tom ntej tom qab kuv tau txais cov ntawv tsim. Txog thaum ntawd, nyob twj ywm.