The USB Charger Doctor holds an OTP microcontroller, Voltage and Current Sensors, and one 7-segment LED display unit. The internal electronics is powered by an onboard voltage regulator, which ...

This is a simple circuit which helps to charge your mobile even when you are in travel. USB Mobile Phone Travel Charger Circuit Diagram Components used in this Circuit: R1-470E C1-100uF/25V T1-BC547 ...

Click here to purchase one from the Adafruit shop This is a Lithium Ion and Lithium Polymer battery charger based on the MCP73833. It uses a USB mini-B for connection to any computer or 'USB wall ...