SIMPLE PORTABLE MOBILE CHARGER CIRCUIT

Portable USB Charger Circuit - Build Electronic Circuits
How to Build The Charger CircuitModificationsDid You Build It?This circuit is fairly easy to build. You only need 7 components. It’s perfect for soldering onto a stripboard.I’ve created a PDF tutorial with step-by-step instructions for building this portable USB charger.See more on build-electronic-circuitsAuthor: Øyvind Nydal Dahl
How To Make Portable Battery Charger? - Electronics Hub
Jan 24, 2016A portable mobile charger with over voltage protection is presented in this project. The circuit can be used to charge a mobile with the help of 4 AA batteries. As the components are discrete, an over voltage protection system is also included in the event of failure of any component.