Soft Starter (Inrush Current Limiter) rau AC thiab DC Loads: 10 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Tawm tam sim no/Hloov-ON kev nce siab yog qhov siab tshaj plaws tam sim no cov tswv yim tam sim no kos los ntawm cov cuab yeej hluav taws xob thaum xub qhib. Inrush tam sim no ntau dua li qhov thauj khoom khov kho-lub xeev tam sim no thiab qhov ntawd yog qhov teeb meem ntau yam xws li fuse tshuab, tsis ua haujlwm, thauj lub neej txo qis, ua rau lub zog sib hloov … lwm yam. Siglent SDS1104X-E oscilloscope. Qhov ntsia hlau ntev yog qhov tseeb. Hauv kab lus no, kuv tau sim daws qhov teeb meem no nrog qhov yooj yim, txawm li cas los xij yog kev daws teeb meem zoo. Kuv tau qhia ob txoj kev sib tw rau AC thiab DC thauj khoom.

Khoom siv

Kab lus:

[1] DB107 Cov Ntaub Ntawv:

[2] BD139 Cov Ntawv Teev Npe:

[3] DB107 Schematic Symbol thiab PCB Hneev Taw:

[4] BD139 Schematic Symbol thiab PCB Hneev Taw:

[5] CAD Plugins:

Kauj Ruam 1: Ruaj Tam Sim No Spike Captured ntawm SDS1104X-E DSO (Ib Leeg-Shot Mode)

AC Soft StarterFigure-1 qhia cov duab kos duab ntawm lub cuab yeej. P1 yog siv los txuas 220V-AC cov tswv yim thiab ON/OFF hloov mus rau hauv Circuit Court. C1 yog siv los txo AC voltage. Tus nqi ntawm C1 tseem txiav txim siab tus nqi tam sim no rau lub tshuab hluav taws xob-hloov khoom siv tsawg dua los siv los ntawm qhov seem hauv Circuit Court. Hauv daim ntawv thov no, 470nF tau txaus. R1 tso tawm C1 kom tsis txhob muaj qhov tsis txaus siab qhov poob siab thaum tus neeg siv txuas lub cuab yeej los ntawm lub hauv paus. R2 yog 1W resistor uas tau siv los txwv qhov tam sim no.

Kauj Ruam 2: Daim duab 1, Schematic Diagram ntawm AC Soft Starter

BR1 yog DB107-G choj rectifier [1] uas tau siv los hloov AC voltage rau DC. C2 txo lub ripple thiab R3 tawm C2 ntawm Hloov-OFF. Tsis tas li, nws muab qhov tsawg kawg nkaus kom khaws qhov hloov pauv ntawm qhov tsim nyog. R4 txo qhov hluav taws xob thiab txwv qhov tam sim no rau qhov seem hauv Circuit Court. D1 yog 15V Zener diode thiab tau siv los txwv qhov hluav taws xob qis dua 15V. C3, R5, thiab R6 tsim lub network timer rau kev xa xov. Nws txhais tau tias nws ua rau ncua sijhawm rau kev ua haujlwm txuas ntxiv. Tus nqi R6 yog qhov tseem ceeb, nws yuav tsum tsis txhob qis dhau los tso qhov hluav taws xob ntau dhau thiab nws yuav tsum tsis txhob siab dhau txhawm rau txo lub sijhawm network teb. 1K muab tus nqi tso tawm kom txaus siab rau qhov ua haujlwm siab ON/OFF hloov pauv. Nrog kuv qhov kev sim, lub network no muab sijhawm qeeb thiab lub sijhawm teb txaus, tau kawg, koj muaj kev ywj pheej hloov kho lawv raws li koj daim ntawv thov.

Q1 yog NPN BD139 [2] transistor los qhib/deactivate tus relay. D2 tiv thaiv Q1 los ntawm kev xa cov inductor qhov rov qab los. R7 yog 5W series resistor uas txwv qhov tig ON inrush tam sim no. Tom qab ncua sijhawm luv luv, kev xa xov hluav taws xob luv luv ntawm tus tiv thaiv, thiab lub zog tag nrho siv rau lub nra. Tus nqi ntawm R7 tau teeb tsa rau 27R. Koj tuaj yeem hloov kho nws nyob ntawm koj lub nra lossis daim ntawv thov.

DC Soft StarterFigure 2 qhia txog daim duab qhia chaw ntawm DC soft starter. Nws yog qhov hloov pauv yooj yim ntawm AC pib pib nrog qee qhov kev hloov pauv me.

Kauj Ruam 3: Daim duab 2, Schematic Diagram ntawm DC Soft Starter

P1 yog siv los txuas 12V cov khoom siv thiab ON/OFF hloov mus rau lub rooj tsavxwm. R2, R3, thiab C2 ua rau lub network qeeb rau kev xa tawm. R4 yog qhov txwv tam sim no resistor. Ib yam li AC pib pib, koj muaj kev ywj pheej hloov kho lub network qeeb thiab R4 qhov txiaj ntsig rau koj qhov kev thauj khoom tshwj xeeb lossis thov.

PCB Layout Daim duab 3 qhia txog PCB txheej txheem ntawm AC pib pib. Tag nrho cov khoom ntim yog DIP. Lub rooj tsavxwm yog ib txheej thiab yooj yim los tsim.

Kauj Ruam 4: Daim duab 3, PCB Layout ntawm AC Soft Starter

Daim duab 4 qhia txog PCB kev teeb tsa ntawm DC muag pib. Zoo ib yam li saum toj no, txhua pob khoom ntim khoom yog DIP, thiab pawg thawj coj yog ib txheej.

Kauj Ruam 5: Daim duab 4, PCB Layout ntawm DC Soft Starter

Rau ob qho tib si tsim, Kuv siv SamacSys cov cim cim thiab PCB hneev taw. Tshwj xeeb, rau DB107 [3] thiab BD139 [4]. Cov tsev qiv ntawv no yog pub dawb thiab ua raws IPC cov qauv kev lag luam. Kuv siv Altium Designer CAD software, yog li kuv siv SamacSys Altium Plugin [5] (Daim duab 5).

Kauj Ruam 6: Daim duab 5, SamacSys Altium Plugin thiab Siv Cov Tsev Qiv Ntawv

Daim duab 6 qhia pom 3D pom ntawm AC pib lub ntsej muag thiab daim duab 7 qhia pom 3D pom ntawm DC muag pib.

Kauj Ruam 7: Daim duab 6, 7: 3D Saib Los Ntawm AC thiab DC Soft Starters

AssemblyFigure 8 qhia txog kev sib sau AC soft starter board thiab daim duab 9 qhia txog kev sib sau DC soft starter.

Kauj Ruam 8: Daim duab 8, 9: Sib Sau Ua Ke (Thawj Cov Qauv) ntawm DC thiab AC Soft Starter

Daim duab thaiv 10 Daim duab qhia pom cov kab hluav taws xob ntawm AC pib lub zog thiab daim duab 11 qhia txog kab hluav taws xob daim duab ntawm DC muag pib.

Kauj Ruam 9: Daim duab 10, 11: Cov Kab Xaim ntawm AC thiab DC Soft Starter

Nqi Khoom

Koj tuaj yeem xav txog daim nqi ntawm cov khoom hauv daim duab hauv qab no