The dummyload project simulates loads from zero to 1000 mA to help characterize new power supply designs. This design can present a single load to the supply, or it can toggle between two loads with a selectable period and duty cycle. The project is built around microcontroller AVR ATmega169.
The project shows you how to build PIC-based emergency power system for 12-Volt device system. The hearts of the project is PIC16F870. The system will monitoring battery voltage both charging and discharging currents, control 4 digit display, and switches the AC and load relays.
This is simple but very powerful USB charger project for your gadget like mp3 player, camera, cell phone, and any other gadget you can plug into a USB port to charge. Main component of the project is LT1302, Micropower High Output Current Step-Up Adjustable and Fixed 5V DC/DC Converters from Linear.
The solar reading lamp project aim was to produce a self powered reading lamp that could be used by students in developing countries for reading at night. The circuit can be used for a wide variety of lighting applications.
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