Most USB chargers cram a lot of electronics into ... separation between primary and secondary traces. The flyback transformer was a treat, too; who doesn’t want to rely on a whisper-thin layer ...

Today, even standard USB chargers have higher performance, with a voltage of 5 V and a current of 2 A, providing a charging power of 10 W. It is now difficult to find a new smartphone model that ...

USB chargers are everywhere and it is the responsibility of every hacker to use this commonly available device to its peak potential. [Septillion] and [Hugatry] have come up with a hack to ...