A New Boost DC-DC Converter Exhibiting Low Stresses and High Efficiency


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Abstract


The paper proposes a new boost-type switching dc-dc converter. Compared to the classical boost topology it exhibits lower semiconductor voltage stresses and the same current stresses at the cost of only three components: one diode, a capacitor and an inductor. Its operation is similar to that of the hard-switched pulse width modulated converters, except for the fact that the first topological state includes also a resonant interval. Continuous conduction mode operation is analyzed in detail focusing on dc conversion parameters and design equations. The theoretical results were first verified through computer simulations and finally the experiments accurately confirmed the feasibility of the new proposed topology.
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Keywords


Boost Converter; Efficiency; Resonant Stage; Static Conversion Ratio; Zero Current Switching

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