This project has been awarded a gold medal in the ITEX convention. It is a stove charger used to charge your handphone battery, desk lamp or LED light. The heat we prodecud from cooking process is converted into electricity using thermo electric generator TEG. The number of electricity produced depends on the temperature difference between the two side of TEG. One side is cooled with air while another side is attached to the heat. The bigger the difference, the greater electricity we produced.
The electricity then is fed into a charging circuit controlled by a PIC microcontroller. The controller also displays the charging rate and the charging voltage for user to monitor this process. A number of 6 TEGs are used in series to produce 12-17 V that is similar to solar panel voltage. The controller can be programmed to charger 5V batteries or 12 V batteries.