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

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5 Author(s)
da Silva, E.S. ; Faculdade de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil ; dos Reis Barbosa, L. ; Vieira, J.B., Jr. ; de Freitas, L.C.
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This paper presents an improved regenerative soft turn-on and turn-off snubber applied to a boost pulsewidth-modulated (PWM) converter. The boost soft-single-switched converter proposed, which has only a single active switch, is able to operate with soft switching in a PWM 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

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:48 ,  Issue: 6 )

Date of Publication:

Dec 2001

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