This paper presents a new modified structure of the SEPIC converter topology using series magnetic coupling and voltage multiplier in order to obtain an elevate voltage gain. The application fields that this converter will be used includes: combined with embbeded systems and photovoltaic modules. The proposed converter is analyzed focusing in its operation stages e observing the effort on the semiconductors e voltages on the other components. The theoretical and experimental results of the proposed converter are described on this paper and shows the converter's efficiency through parameters such as: low voltage on switch, low input current ripple and high output voltage.