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Due to the increasing demands of safe and efficient renewable energy systems, isolated DC-DC converters became widely used in this field as the essential power conversion blocks. At the same time, such converters are demanded for wide input voltage range and fault tolerance as desirable features. This paper proposes a isolated boost full bridge DC-DC converter which features wide input range and resilient...
This paper presents a high efficiency method for an LLC converter. The LLC converter is a very attractive solution for renewable energy systems, because of its high efficiency characteristic. However, in the case of using a planar transformer, the large capacitance between the primary and secondary windings may be a cause of a new dissipation. In this paper, the characteristics of the dissipation...
This paper presents a comparison of dissipation between LLC and phase shift converters under the same size condition using a manufactured power supply. Moreover, it is clarified that the ratio of the transformer dissipation for the overall dissipation of LLC is much higher than that of the phase shift converter. In addition, we show that the winding resistance decreases by improving the coupling between...
A new dc-dc converter is presented to perform the precise regulation of multiple output voltages, which is composed of the cascade connection circuit of the improved forward type multiple-output converter and the step-down type single-output converters. In the conventional multiple-output converter using cross regulation, the steady-state errors in the cross regulated outputs cannot be made smaller...
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