16-02-2013, 03:07 PM
A SEMINAR REPORT ON APPLICATION OF POWER SEMICONDUCTOR DEVICES & ITS IMPLEMENTATION IN POWER ELECTRONICS
[attachment=51209]
ABSTRACT
Our project concerns about low power boost converter designed to operate at very low input voltage of 250mV. It’s the voltage range of micro energy sources such as photo voltaic cells. The PCB prototype will provide a regulated maximum output voltage of 3.3V with 70% of maximum efficiency. The low power range of micro energy sources requires highly efficient circuit adaptation. The proposed converter design is very attractive for low power application power supply. The converter works without any external power supply for the control logic. New energy sources like single solar cell modules, thin-film batteries or micro fuel cells have been innovated in the last years. These sources have higher energy density than the traditional power supply sources. The traditional power supply sources such as Li-Ion or Ni-MH batteries have some significant limitations in terms of supply current and voltage. Hence we are trying to design a circuit highly efficient to work with input power of very few hundreds of Ws with maximum life time.
[attachment=51209]
ABSTRACT
Our project concerns about low power boost converter designed to operate at very low input voltage of 250mV. It’s the voltage range of micro energy sources such as photo voltaic cells. The PCB prototype will provide a regulated maximum output voltage of 3.3V with 70% of maximum efficiency. The low power range of micro energy sources requires highly efficient circuit adaptation. The proposed converter design is very attractive for low power application power supply. The converter works without any external power supply for the control logic. New energy sources like single solar cell modules, thin-film batteries or micro fuel cells have been innovated in the last years. These sources have higher energy density than the traditional power supply sources. The traditional power supply sources such as Li-Ion or Ni-MH batteries have some significant limitations in terms of supply current and voltage. Hence we are trying to design a circuit highly efficient to work with input power of very few hundreds of Ws with maximum life time.