A conventional DC to DC converter based dual bridge operation in power electronics

In this paper, the main reason why AC electricity was accepted as the form of choice for the modern electric power system is the magnetic transformer. The inability to conveniently change voltage levels became one of the major drawbacks of Edison's early DC system concept. The DC transformer can be a device that, like its AC counterpart, provides lossless transfer of energy between circuits at different voltage or current levels which become useful to adopt DC system in place of existing AC systems. In power electronics the DC - transformer is realized as a DC - DC converter. Energy is transferred between two DC circuits at different voltage and current levels.