Un convertidor DC-DC basado en una topolgía Flyback modificada (A DC-DC Converter Based On Modified Flyback Converter Topology)

Cristian Pesce (cristian.pesce@ufrontera.cl)1, Ramon Blasco Gimenez (r.blasco@ieee.org)2, Javier Riedemann (jriedema@ubiobio.cl)3, Ivan Andrade (iandrade@umag.cl)4, Ruben Peña5

1Universidad de La Frontera
2Universidad Politécnica de Valencia
3Universidad del Bio-Bio
4Universidad de Magallanes
5Universidad de Concepcion

This paper appears in: Revista IEEE América Latina

Publication Date: Sept. 2016
Volume: 14,   Issue: 9 
ISSN: 1548-0992

This paper proposes a DC-DC power converter topology based on a modified Flyback Converter (FC). The aim of the proposed topology is to increase the voltage gain by connecting the inputs of N isolated FCs in parallel and the N secondary inductances in series. This scheme reduces the current in each switch then reducing the associated losses. A single diode and an output capacitance complete the power converter circuit. A Proportional+Integral (PI) controller is used to control the output voltage with the converter operating in discontinuous current mode. The proposed converter can handle more power than the standard FC with a low number of active power devices. The system is modeled using PSIM platform and experimental results are presented considering a 1kW prototype

Index Terms:
DC-DC Power Converters, Flybacks Transformers, Switching Loss   

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