Implementation of High Efficiency Interleaved DC-DC Boost Converter with Voltage Doubler Cell and Clamped Circuit

1,3 Abstract: DC-DC boost converters are mostly employed in renewable energy system such as photovoltaic system, fuel cell and so on, because these systems generate low output voltage which is not suitable for grid connected power applications. This paper proposes an interleaved boost converter which consists of voltage doubler cell and clamped circuit to achieve large output voltage gain without extremely increasing the duty ratio compared to the conventional boost converter. Furthermore, the energy stored in the leakage inductance of the coupled inductor is recycled and voltage stress across the main switch is minimized by using clamped circuit which leads to increase the output voltage gain. It is a non isolated converter topology which reduces the high voltage spikes on the switches. The voltage gain, efficiency, voltage stress across the switch of the proposed topology is investigated and compared with the existing topology. Results are obtained using MATLAB simulation and validated by hardware implementation.