It's difficult to form a protective coating that prolongs battery life at the battery's cathode, but there may be a low-cost ...

Capacitors are tiny components found in almost every electronic device, but most people have no idea what they do. This video ...

Discover how to make a DIY hand-powered mobile phone charger using simple materials such as two small DC motors and a piece ...

Abstract: This letter proposes a unified concept of the active impedance module and its control method with minimum power processing. The impedance value and type of the proposed active impedance ...