An adjustable power supply is an indispensable assistant for every DIYer. When testing another homemade product, we often need different voltages in order to achieve the best result. In today’s video, I will show you a great idea of how you can make an adjustable power supply from an old charger from a mobile phone or some other equipment.
Make at home a power supply with an adjustable resistor, when you turn it, you can choose any voltage from three to 19 В Very easy and simple And we will spend about 5 minutes on this! The maximum and minimum voltage and amperage will depend only on the characteristics of your power supply. Watch the video by RomanUrsuHack for more info:
When using a 5 V and 2 A power supply I managed to achieve the following regulated result Minimum 3 5 V and maximum 15 V. And also approximately 6 A. I am very pleased with the DIY on which we spent about 5 minutes of time and literally a dollar on components!
I bought all the components on the radio market, but you can do it on the Aliexpress, although the price varies a little, so I left a few links attached in the comments, you can choose something or find it in your garage! Disclaimer: This project is done in an controlet environment by a professional , electricity can be dangerous, don’t try this at home if you don’t know what you are doing.