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In order to obtain a high step-up voltage gain, high-efficiency converter, this paper proposed a dual switches dc/dc converter with three-winding-coupled inductor and charge pump. The proposed converter composed of dual switches structure, three-winding-coupled inductor, and charge pump. This combination facilitates realization of high step-up voltage gain with a low voltage/current stress on the...
A novel transformerless DC/DC converter is proposed in this paper to meet the high step-up, high efficiency and high power requirements. In the proposed converter, the dual switches structure is introduced to reduced the voltage and current stress of the power switches; the active clamping technology is utilized to realize the ZVS switching of all the switches; all the windings are coupled to simplify...
High step-up voltage gain DC/DC converters are widely used in renewable energy power generation, uninterruptible power system, etc. In order to avoid the influence of leakage inductor in coupled inductors based converters, switched-inductor Boost converter (SL-Boost), switched-capacitor Boost converter (SC-Boost) and active-network converter (ANC) have been developed. With the transition in series...
Affected by the equivalent series resistance of the devices in the circuit, the voltage-conversion ratio of the traditional Boost converters is limited. Various topologies have been developed to provide a high step-up voltage gain. With the transition in series and parallel connection of the inductors, an active-network converter with an inherent high voltage gain can be achieved. However, this converter...
Traditional high step-up voltage gain DC/DC converters have some common problems, such as large volume, high power switches voltage stress and limited voltage conversion ratio. In order to solve these problems, this paper proposed a novel transformerless coupled inductor based active-network converter. Firstly, this paper shows the key waveforms of the proposed converter and detailed derivation of...
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