How to adjust the output voltage of an LM7805 stabilizer using a potentiometer

✔️Hello! In the episode above I will show you how we can adjust/regulate/modify the voltage at the output of a voltage stabilizer, an LM7805, with the help of a potentiometer. I will also measure the current through the GND pin of the integrated (the middle pin) Along the way I will show you how we "calculate" the value in ohms of the potentiometer, we will test the stability of the voltage at 5Vcc, 9Vcc, 12Vcc and 24Vcc. Then I will also show a practical demonstration regarding the adjustment of the output voltage. Towards the end I will also draw the conclusions, at the same time showing the methodology with the voltage divider present in the datasheet.
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[@Pasionatdefiare1986]

Foarte util clipul ăsta! 👏

[@FVEBlog]

Multumesc. 🙂

[@ElectroTechTips]

Nice video.

[@FVEBlog]

Thanks!

[@Domnu.]

Eu i-as face un upgrade sarcinii electronice cu potentiometre multitura de aceeasi reziatenta.

[@FVEBlog]

Nu e o idee rea. Cred ca m-as gandi sa pun unul multitura direct pe reglajul brut. Problema ar fi sa gasesc unul mic. Sa incapa in zona respectiva. 😃

[@ioanmacarie1641]

Lm 7805 ,are 5v si daca tempratura lui creste sau scade.Prin inserierea diodei fata de masa, tensiunea de iesire va fi 5v+ 0,7v+2,2mv×t(grd C) Transformarea facuta de tine este lectie de electronica: asa ceva nu faceti! Cu aparatele pe care le ai se poate vedea fuga cu tempratura, folosindu te de aer cald , doua integrate, unul cu dioda.

[@FVEBlog]

Clipul acesta a aparut datorita unui comentariu postat la clipul anterior. Cum ca se poate modifica/regla tensiunea unui stabilizator fix (gen 7805). De acord, transformarea unui LM78XX in unul reglabil nu e una cu rezultate optime. Episodul acesta fiind numai un experiment. Daca m-ar intreba cineva daca as folosi o astfel de modificare, as spune nu. Poate numai in regim de urgenta. 😅

[@tavirasz]

multumim🤝de YO5PCH