Hardware Implementation of Bidirectional Full Bridge Isolated DC- DC Converter
DOI:
https://doi.org/10.53555/eee.v3i6.377Keywords:
DC-DC Converter,, Switching Device, buck mode, high efficiency,, switching speeds.Abstract
This paper presents the design and development of an u l t r a -high efficiency bidirectional isolated full bridge DC-DC converter. To achieve ultra-high efficiency, synchronous rectification and high efficiency magnetics are used. The proposed bidirectional converter allows a power flow in both directions using the same power components; this increases power density and reduce the cost. The converter operates at a switching frequency of 50 kHz with a voltage of 130 volts at one side and 52 volts at the other side of the converter. The fast switching speeds o f t h e s wi t c h i n g de vi c e s a r e utilized to achieve extremely high conversion efficiency thus reducing the total volume of the converter. The high power DC-DC converter has attained an extremely high efficiency of 80% in both the directions. The performance of a 1.7 kW bidirectional converter is validated in both forward direction (buck mode) and backward direction (boost mode) sing MATLAB simulation.
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