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An improved boost PWM soft-single-switched converter with low voltage and current stresses

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4 Author(s)
L. dos R. Barbosa ; Dept. de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil ; J. Batista Vieira ; L. C. de Freitas ; V. J. Farias

This paper presents an improved regenerative soft turn-on and turn-off snubber applied to a boost PWM converter. The boost soft-single-switched converter proposed, having only a single active switch, is able to operate with soft switching in a pulse width modulation way without high voltage and current stresses. This is achieved by using an auxiliary inductor, which is magnetically coupled with the main inductor of the converter. In order to illustrate the operating principle of this new converter a detailed study, including simulations as well as experimental results is carried out. The validity of this new converter is guaranteed by the obtained results

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Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE  (Volume:2 )

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