DC Tsav Tsav Tsheb Siv H Choj: 9 Kauj Ruam

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

Nyob zoo cov neeg!

Hauv cov lus qhia no, kuv yuav qhia koj yuav tsim H Choj li cas - ib qho hluav taws xob yooj yim uas tso cai rau peb siv hluav taws xob los thauj mus rau ib qho twg. Nws feem ntau siv hauv kev siv neeg hlau los tswj DC Motors. Los ntawm kev siv H Choj peb tuaj yeem khiav DC Lub Cev Tsav Tsheb raws cov lus qhia los yog cov lus qhia rau lub moos.

Kauj Ruam 1: Yuav Tsum Kho Vajtse

Cov hauv qab no tau siv:

1. x1 7805 tus tswj hluav taws xob

2. x2 2N2907 PNP Transistor (Q1, Q3)

3. x2 2N2222 NPN Transistor (Q2, Q4)

4. x4 1N4004 Diode (D1. D2, D3, D4)

5. x4 1K Resistor (R1, R2, R3, R4)

6. x3 255SB SPDT zawv zawg hloov

7. x1 DC Jack (12V)

8. x2 2Pin Txuas

9. x1 DC Tsav

Kauj Ruam 2: Ntawv Schematic

Daim duab no qhia txog daim ntawv txheej txheem ntawm H-choj DC Tsav Tsav Tsav Tsheb. Cov Circuit Court saum toj no muaj qhov tsis zoo. Kuv tau ntsib teeb meem nrog Diode 1N5817 yog li kuv siv 1N4004. Cov transistors Q1, Q2 & Q3, Q4 yuav tsis hloov nws lub xeev vim tias nws tsis txuas nrog lub hauv paus taw tes. Cov teeb meem no tau raug kho nyob rau hauv cov phiaj xwm hluav taws xob siv Eagle software.

Kauj Ruam 3: Circuit Schematic & Txoj Cai Ua Haujlwm

Cov duab qhia pom cov txheej txheem ntawm H-choj DC Tsav Tsav Tsheb siv Eagle software.

Hauv qhov Circuit Court no, txhua lub transistors tau xaim ua qhov hloov pauv. NPN transistor (Q3 thiab Q4) yuav ON thaum peb muab siab rau nws thiab PNP transistor (Q1 thiab Q2) yuav ON thaum peb muab qis rau nws. Yog li thaum (A = LOW, B = HIGH, C = LOW, D = HIGH), transistors Q1 & Q4 yuav ON thiab Q2 & Q3 yuav raug kaw, yog li lub cav tig mus raws lub moos. Zoo sib xws thaum (A = HIGH, B = LOW, C = HIGH, D = LOW), transistors Q2 & Q3 yuav ON thiab transistor Q1 & Q4 yuav raug kaw, yog li lub cav tig mus rau hauv kev taw qhia.

1N4004 (D1 ~ D4) yog siv lub diode freewheeling vim nws yog qhov hloov pauv nrawm. Nws zam qhov teeb meem vim qhov hluav taws xob tsis zoo tsim los ntawm sab nraum qab emf dc lub cev muaj zog. Resistors R1 - R4 tau siv los txwv cov tswv yim tam sim no ntawm transistors thiab tau tsim nyob rau hauv ib txoj kev uas transistor yuav ua haujlwm raws li kev hloov pauv. 3 siv cov zawv zawg (S1, S2 & S3). S1 yog siv rau ON & OFF kev ua haujlwm ntawm lub cav. S2 & S3 yog siv rau Clockwise & Anticlockwise kev sib hloov ntawm lub cav.

Kauj Ruam 4: PCB Tsim

Cov duab qhia pom PCB tsim ntawm H-choj DC Tsav Tsav Siv Eagle software.

Hauv qab no yog qhov kev txiav txim siab ntsuas rau PCB tsim:

1. Kab dav tuab yog yam tsawg 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 5: Tshaj Tawm Gerber ntawm LionCircuits

PCB yuav tsum tau tsim. Kuv xaj kuv li PCB los ntawm LionCircuits. Koj tsuas yog yuav tsum xa koj cov ntaub ntawv Gerber online ntawm lawv lub platform thiab tso xaj.

Hauv daim duab saum toj no, koj tuaj yeem pom PCB tsim tom qab rub tawm ntawm LionCircuits platform.

Kauj Ruam 6: Tsim Pawg Thawj Coj

Tom qab kuaj simulation, peb tuaj yeem kos PCB Schematic nrog txhua qhov haujlwm koj xav tau.

Nov kuv tau txuas kuv tus kheej tsim thiab cov ntaub ntawv Gerber.

Kauj Ruam 7: Pawg Sib Koom Ua Ke

Daim duab qhia pom tias cov khoom sib dhos tau sib sau ua ke ntawm lub rooj tsavxwm.

Thaum kuv tau ua haujlwm nrog lub rooj tsavxwm no, cov lus tawm tswv yim nrog tus nqi ntawm 1k tau tsim teeb meem hauv kev sib hloov ntawm lub cav yog li kuv luv tag nrho 1k resistors, tom qab ntawd nws ua haujlwm.

Kauj Ruam 8: NTUJ

Kauj Ruam 9: Kawm

Kuv tsis tau ua qhov Circuit Court no hauv lub khob cij ua ntej vim li ntawd kuv thiaj ntsib ntau yam teeb meem hauv pawg thawj coj saib. Hauv kuv qhov kev tsim qauv tom ntej, Kuv yuav ua qhov Circuit Court hauv breadboard ua ntej, tom qab ntawd, kuv yuav txav mus rau lub rooj tsim khoom thiab kuv qhia koj kom ua ib yam.