The dc / dc power converter integrates a dc-dc boost converter and a transformer to convert the output voltage of the solar cell array into two independent voltage sources with multiple ratios. Solar energy is becoming increasingly important as it produces less pollution and the cost of energy from fossil fuels is increasing, while the cost of solar arrays is declining. Growing energy demand coupled with the possibility of reducing the supply of conventional fuels, together with growing concerns about preservation of the environment, has driven the research and development of cleaner, renewable, and less impactful alternative energy sources. Among alternative sources, photovoltaic electricity is currently considered the most useful natural energy source, since it is free, abundant and clean, distributed on land and participates as a primary factor in all other production processes of energy on Earth