Hloov Chaw Tiv Thaiv Cov Nyiaj Txiag Nrog Cov Kauj Ruam Me Me: 5 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:28

Load Resistor Banks xav tau los ntsuas cov khoom siv hluav taws xob, rau tus yam ntxwv ntawm lub hnub ci vaj huam sib luag, hauv chav sim thiab hauv kev lag luam. Rheostats muab kev hloov pauv tas li hauv kev tiv taus. Txawm li cas los xij, raws li tus nqi ntawm kev tiv thaiv raug txo qis, lub zog ntsuas kuj tseem txo qis. Ntxiv rau, rheostats muaj series inductance.

Qee qhov kev xav tau ntawm load resistor bank yog:

1) Series inductance yuav tsum me me li sai tau

2) Cov kauj ruam me me

3) Raws li lub zog tiv thaiv raug txo qis, lub zog ntsuas yuav tsum nce.

Ntawm no, tus qauv tsim ntawm load resistor bank tau muab. Qhov tshwj xeeb ntawm qhov tsim qauv no yog, cov kauj ruam me me nrog tsawg tus lej hloov pauv thiab cov neeg tawm tsam.

Kauj Ruam 1: Cov Khoom Yuav Tsum Tau

Nram qab no yog Cov Nqi Khoom Siv:

1) Lub Hom Phiaj PCB 12 "x 2.5" - 1 pc

2) Rectangular Aluminium yeeb nkab (12 "x 2.5" x 1.5 ") - 1 pc

3) Resistors 3300 Ohm 2W - 27 pcs

4) Toggle Hloov - 15 pcs

5) M3 x 8 mm ntsia hlau, tshuab ntxhua khaub ncaws thiab txiv ntseej - 12 teeb

6) Cov xov hlau

Kauj Ruam 2: Daim duab Circuit Court

Lub Circuit Court muaj 27 carbon film resistors ntawm 2W lub zog ntsuas. Thawj tus tiv thaiv R1 tau txuas ncaj qha hla lub davhlau ya nyob twg T1 thiab T2 raws li qhia hauv daim duab 2. Circuit xav tau 15 qhov hloov pauv. Kaum peb hloov SW1 rau SW13 tau siv los hloov ob tus tiv thaiv ib leeg, hauv Circuit Court. Ob lub toggle hloov J1 thiab J2 tau siv nrog SW1 thiab SW2. SW1 txuas R2 thiab R3. Ntawm no, R2 txuas ncaj qha rau hauv av. R3 txuas nrog hauv av hla J1 (thaum J1 nyob hauv txoj haujlwm ON). Zoo sib xws, SW2 txuas R4 thiab R5. Ntawm no kuj, R5 txuas ncaj qha rau hauv av. R4 txuas rau hauv av thaum J2 nyob hauv txoj haujlwm ON. Thaum J1 thiab J2 raug tsiv mus rau OFF txoj haujlwm, cov neeg tawm tsam R3 thiab R4 los ua ntu zus. Kev sib txuas sib txuas rau SW1, SW2, J1 thiab J2 tau qhia hauv daim duab 3.

Hauv qab no yog cov qauv tsim:

1) Max Resistance Req = 3300 ohm (Txhua qhov hloov SW1 rau SW13 raug kaw)

2) Lub zog ntsuas ntawm Max Kuj = 2 W

3) Yam Tsawg Kawg Kawg = 3300/27 = 122.2 ohm (SW1 txog SW13 yog ON, Jumpers J1 thiab J2 yog ON)

4) Lub zog ntsuas ntawm Min Kuj = 54 W

5) Tus naj npawb ntawm cov kauj ruam = Tsis muaj cov hloov pauv * 3 = 13 * 3 = 39

Cov lus qhia pom qhov tseem ceeb ntawm kev sib npaug tiv thaiv Req rau kev hloov pauv sib txawv thiab teeb tsa jumper.

Sau ntawv rau lub rooj:

^ R3 thiab R4 nyob hauv kab lus

* J1 OFF thiab J2 ON muab cov txiaj ntsig zoo ib yam

** R4 tsis nyob hauv Circuit Court.

Kauj Ruam 3: Kev Tsim

Hauv Aluminium yeeb nkab, ua ib lub qhov nyob nruab nrab ntawm sab dav. Lub qhov yuav tsum yog li 1.5 "dav, tawm 0.5" cov npoo nyob rau sab saum toj thiab hauv qab raws li qhia hauv daim duab 4. Laum 12 qhov sib dhos ntawm 3 hli dia.

Siv lub hom phiaj dav dav PCB thiab laum 15 qhov ntawm 5 mm dia. Cov qhov no tsuas yog nyob hauv qab cov paj ntoo saum toj kawg nkaus xws li, thaum lub toggle hloov pauv tau teeb tsa, yuav tsis kov Aluminium yeeb nkab. Kuj xyaum 12 qhov sib dhos ntawm PCB kom phim cov ntawm Aluminium yeeb nkab. Txhim kho tag nrho cov toggle keyboards hauv 5 mm qhov.

Kauj Ruam 4: Kev sib txuas

Siv cov tooj liab liab liab ntev thiab muab nws tso rau sab saum toj kawg nkaus ntawm txhua qhov hloov pauv hloov SW1 rau SW13. Tsis txhob txuas cov xaim no mus rau J1 thiab J2. Ib yam li ntawd siv lwm cov tooj liab liab liab thiab muab nws txuas rau PCB ntawm qee qhov deb hauv qab qhov hloov pauv. Siv ob tus tiv thaiv thiab koom nrog lawv ntawm ib qho kawg. Tom qab ntawd muab qhov no txuas rau nruab nrab lub davhlau ya nyob twg ntawm qhov hloov pauv SW3. Zoo sib xws solder 2 resistors txhua rau tag nrho cov toggle hloov mus rau SW13. Lwm qhov kawg ntawm cov tiv thaiv tau muab txuas rau tooj liab hlau (Hauv av) raws li qhia hauv daim duab 5.

Kev sib txuas mus rau SW1, SW2, J1 thiab J2 raws li daim duab qhia chaw ntawm daim duab 3 tau qhia hauv daim duab 6. Siv ob lub xov hlau nyob nruab nrab ntawm kab lus thiab coj nws tawm rau sab nraud txuas T1 thiab T2 raws li qhia hauv cov duab saum toj no.

Kauj Ruam 5: Kev koom ua ke thiab Siv

Xaub cov PCB sib dhos rau hauv Aluminium yeeb nkab. Ua kom ntseeg tau tias tsis muaj ib tus neeg tiv taus kov cov yeeb nkab. Txhim kho PCB rau cov yeeb nkab uas siv 12 tus ntsia hlau. Lub txhab nyiaj tiv thaiv kab mob tau npaj rau siv.

Khaws tag nrho cov toggle hloov OFF. Tam sim no tig rau SW1. Nrog rau SW1, J1 tuaj yeem siv los txo tus nqi tiv thaiv. Tom ntej no, tig rau SW2. Tam sim no J1 thiab J2, ob qho tib si yuav muaj txiaj ntsig. J1 thiab J2 hauv OFF qhov xwm txheej muab qhov muaj peev xwm tiv taus siab tshaj plaws hauv qhov kev teeb tsa no. Tig rau J1 yuav txo qhov tsis kam. Tam sim no tig ON J2, yuav txuas ntxiv txo qhov tsis kam. Txhawm rau mus rau qhov txiaj ntsig qis dua tom ntej ntawm Req, SW3 yuav tsum tau tig rau. Hauv qhov teeb tsa no, dua, peb tuaj yeem hla peb kauj ruam piv txwv. J1, J2 OFF, tom ntej J1 ON thiab kawg J2 kuj ON.

Qhov Zoo:

1) Siv tus lej tsawg dua ntawm cov hloov pauv thiab cov tiv thaiv thiab muab cov lej ntau ntxiv.

2) Txhua tus resistors zoo ib yam hauv tus nqi thiab lub zog ntsuas. Qhov no txo tus nqi. Tshwj xeeb tshaj yog thaum siv lub zog loj tiv thaiv kab mob. Lub zog loj tiv taus yog kim heev.

3) Txhua tus tiv thaiv tau teeb tsa zoo ib yam, yog li siv tau zoo dua ntawm kev ntsuas lub zog tiv thaiv.

4) Peb tuaj yeem txuas ntxiv cov hloov pauv thiab cov tiv thaiv kom tau txais qhov kev tiv thaiv ntau yam.

5) Lub voj voog no tuaj yeem tsim rau txhua qhov kev tiv thaiv qhov tseem ceeb thiab kev ntsuas lub zog.

Qhov kev tsim qauv no muaj txiaj ntsig zoo rau txhua lub chaw kuaj hluav taws xob/ khoom siv hluav taws xob hauv cov tsev qhia ntawv, hauv cov chaw sim thiab hauv kev lag luam.

Vijay Deshpande

Bangalore, Is Nrias teb

email: [email protected]

Khiav Tawm Hauv Cov Khoom Siv Hluav Taws Xob & Kev Sib Tw Tricks