USB Mobile Charger Circuit Diagram - EngineersGarage The mobile charger circuit presented in this project can give 4 of synchronized voltage for charging the phone. As USB outlets can give 5V DC and 100mA of current. It is sufficient for slow charging of mobile phones so they can be used to charge the mobile phones. USB stands for Universal Serial Port. Amazon: samsung galaxy usb charger wwwon›Search›samsung galaxy usb charger1-16 of over 20,000 results for "samsung galaxy usb charger" Showing selected results. See all results for samsung galaxy usb charger. Charging Cable for Samsung Galaxy S7, 2Pack(6ft & 10ft) Long Micro USB 2.0 Charging Wire, Android Phone Fast Charger Cord for Samsung Galaxy S7 S6 Edge, Note 5 4 2, HTC, LG G4, BlackBerry, Motorola.