The power electronics has certainly experienced one of the largest developments in the last 20 years. The emergence of components at high speed switching allows the construction of converters that use ever higher frequencies, resulting in reduction in weight and volume. These characteristics are highly desirable, since the current electronic equipment has a high rate of compression due to the use of dedicated integrated circuits. The final size of the converter is directly dependent on the size of magnetic components and capacitors, so its optimization is critical to get low volume. The higher the switching frequency, size the smaller of the transformer and inductor. It is developed in this work the design of a Push-Pull DC-DC converter using voltage staplers for applications in various types DC-DC conversion, can be used as power stage in the coupling cascade converters. This paper discusses a complete manner the study of each component in particular the magnetic elements of the drive. A methodology for the design of voltage staplers, because it is extremely important circuits for high frequency switching power supplies. Initially we present a general description of the Push-Pull converters, as well as some topologies studied in the literature surveyed. Emphasizing its galvanic isolation capacity due to the use of transformers. The converter design presented in this paper is specified such that the physical implementation is possible. The most important parameters were considered, securely providing scaling of semiconductor switches, capacitors and magnetic elements.
Finally, consolidates the converter project proposal with power 300W, 12V DC input, 120V DC output, featuring a simulation in PSIM, computer simulation program with dedication to simulations in power electronics area. In this simulation is proven the viability of converter physical implementation.
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