Analysis Of A Soft-single-switched Quadratic Boost Converter

In recent years, the development of new technologies is requiring power supplies with wide dc conversion range. In this paper an alternative solution is presented, the properties of the new soft-single-switched (SSS) Boost converter with voltage ratio that are quadratically dependent on duty cycle are discussed. The converter is a zero-current-switching (ZCS) during the turn-on period and a zero-voltage-switching (ZVS) during the turn-off period. The operating principle of the proposed converter is explained; its operating modes along with key waveforms are shown. Moreover, a complete simulation and experimental results have verified the feasibility of its applications in renewable energy systems. 1

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