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Do It Yourself
DIY & Home Improvement

DIY USB charger for your phone - LM2596

DIY USB charger for your phone - LM2596
DIY USB charger for your phone - LM2596
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.

Step 1: Components

Required components.

Step 2: Schematic

Schematic of USB charger.
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.
USB pinout
USB pinout
After connecting the USB and setting the voltage, the charger is ready to use.