DIY USB Charger for Your Phone - LM2596

2,721

25

1

About: Software, electronics, do-it-yourself
Make your own charger for your phone. There are many ways to do this, in this projection I will show you how to do this using the LM2596. The advantages of this charger are charging current of 3A, simplicity in the making, input voltage 7v - 40v. It can power directly from the 12v or 24v battery. In this example I used a 14.4V battery from a cordless drill.

This article can also see here:


DIY USB charger for your phone - LM2596

Supplies:

Step 1: Components

Required components.

Step 2: Schematic

Schematic of USB charger.

Step 3: Soldering

At the beginning, set the voltage to 5V on LM2596 using a potentiometer.
Then connect the LM2596 to the USB port as shown in the picture.
After connecting the USB and setting the voltage, the charger is ready to use. wwwGoogle pluseTwitter

Share

    Recommendations

    • Gardening Contest

      Gardening Contest
    • Party Challenge

      Party Challenge
    • Woodworking Contest

      Woodworking Contest

    Discussions

    0
    None
    darkadam

    Tip 11 months ago

    This may not work for some/most phones. This is because you aren't not telling it that you are using a charger, therefore it must comply by USB spec. As there is no communication on the data lines, it may confuse it.

    Most phones require you either:

    Bridge the two data pins on the USB together,

    or if its an iPhone, it looks for like 2v and 2.6v on the data pins iirc

    Easiest to use a USB control IC like the TPS2511DGN