Kev Tsim Qauv Cov Qauv ntawm DC Electronic Loads

Nyob rau hauv lub series circuit ntawmDC Electronic LoadTam sim no txhua tus taw tes yog tib yam nkaus, thiab lub Circuit Court xav tau ua haujlwm nrog qhov tam sim no tas mus li. Ntev npaum li qhov kev ntws tam sim no los ntawm ib feem ntawm ib qho yog tswj tau nyob rau hauv series Circuit Court, qhov tso zis tam sim no peb tswj tau tuaj yeem ua tiav.

Kev siv hluav taws xob yooj yim tas li tshiab, feem ntau yog siv hauv cov ntawv thov nrog lub zog qis thiab tsawg yuav tsum tau. Hauv lwm cov ntawv thov, cov Circuit Court tsis muaj zog, xws li: Thaum cov lus qhia voltage yog 1V thiab cov tswv yim tam sim no yog 30A,

Qhov yuav tsum tau ua haujlwm tsis tuaj yeem lav cov haujlwm txhua, thiab nws tsis yooj yim heev rau lub Circuit Court kom kho cov zis tam sim no.

Ib qho ntawm feem ntau siv tas li kev voj voog tam sim no, xws li lub vojrcuit tau yooj yim kom tau ruaj khov thiab muaj nuj nqis tam sim no, thiab VRF yog ib lub teeb liab muab.

Tus txheej txheem ua hauj lwm ntawm Circuit Court yog, muab ib qho teeb liab VREF: Thaum yog tsawg dua li ntawm OP07 yog nce, kom lub abs tau nce Thiab tam sim no R3 tau nce;

Thaum lub voltage ntawm R3 yog ntau dua VREF, thiab OP07 txo cov zis tam sim no, uas tseem yuav muaj tus nqi tas li, uas kuj paub tseeb tas mus li kev ua haujlwm;

Thaum muab VREF yog 10MV thiab R3 yog 0.01 Ohm, tus nqi VREst tam sim no tuaj yeem hloov kho los ntawm lub potentiometer tam sim no los yog DAC chip tuaj yeem siv los tswj Cov tswv yim los ntawm MCU,

Cov zis tam sim no tuaj yeem hloov kho ntawm tus kheej los ntawm kev siv lub lauj kaub. Yog tias DAC cov tswv yim siv, tus digital tswj tau tas li tsis muaj hluav taws xob hluav taws xob tam sim no tuaj yeem pom tau. Taag Layout

Teem ib qhov dav tsau thiab qhov siab ntawm cov toolbar. Lub keeb kwm yav dhau tuaj yeem teeb tsa. Nws tuaj yeem txig ua kom haum rau cov duab keeb kwm yav dhau los thiab cov ntawv nyeem thiab ua koj tus kheej cov qauv.

Circuite Simulation Qhia:

Kev ntsuas hluav taws xob tas li

Ib qho yooj yim constant voltage Circuit Court, tsuas yog siv Zener diode.

Cov lus qhia voltage yog txwv rau 10V, thiab lub charterage circuit Court yog qhov tseem ceeb heev thaum siv los ntsuas lub charger. Peb tuaj yeem maj mam hloov tus voltage los sim ntau yam lus teb ntawm lub charger.

Qhov voltage ntawm Lub Tsib Rauv faib los ntawm R3 thiab R2 thiab xa mus rau qhov ua haujlwm zoo hauv + rau kev sib piv nrog tus nqi muab. Raws li muaj nyob hauv daim duab, thaum lub potentiometer yog ntawm 10%, nyob rau hauv- yog 1v, tom qab ntawd lub voltage ntawm lub raj yuav tsum yog 2V.

Situbs Resistance Circuit Court

Rau qhov tsis tu ncua kev ua haujlwm, hauv qee qhov kev tswj hwmHauv Ntim Khoom, tsis muaj lub Circuit Court tshwj xeeb yog tsim tshwj xeeb, tab sis tam sim no tau suav los ntawm cov lus qhia voltage los ntawm kev ntsuas lub hom phiaj tam sim no, yog li kom ua tiav lub hom phiaj tsis kam mus.

Piv txwv li, thaum lub sijhawm tsis tu ncua yog 10 ohms, thiab lub Mcu Ntes uas cov lus qhia voltage yog 20V, nws yuav tswj cov zis tam sim no yog 2A.

Txawm li cas los xij, hom no muaj cov lus teb qeeb thiab tsuas yog tsim nyog rau qee lub sijhawm uas cov tswv yim pauv maj mam thiab qhov yuav tsum tsis muaj siab. Kev ntsuas hluav taws xob tsis zooHauv Ntim Khoomyog pom tau los ntawm kho vajtse.

Lub zog tas li

Lub zog tas li feem ntauHauv Ntim Khoomtau siv los ntawm kev sib tw tam sim no. Lub hauv paus ntsiab lus yog tias MCU suav cov zis tawm tam sim no raws li lub teeb fais fab tus nqi tom qab kuaj cov lus qhia voltage.


Lub Sijhawm Post: Oct-19-2022
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Xa koj cov lus rau peb:

Sau koj cov lus ntawm no thiab xa mus rau peb
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