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Communication Dans Un Congrès Année : 2016

Active Dead-time optimization for wide range Flyback active-clamp converter

Résumé

The Flyback Active-clamp topology can work on a wide input voltage range. But the parasitic capacitor of the main MOSFET used in the soft switching is affected by the input voltage variation and then reduces the efficiency of the converter. In this article, the strategy used to maintain an optimal valley switching by adapting PWM dead-times is described. We have tested our strategy on a 20 V to 120 V input I 30 W converter operating at 200 kHz We have obtained a 2% efficiency increase above 60 V compared to a fixed dead-time control.
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Dates et versions

hal-01387598 , version 1 (25-10-2016)

Identifiants

  • HAL Id : hal-01387598 , version 1

Citer

Sébastien Larousse, Hubert Razik, Rémy Cellier, Nacer Abouchi, Philippe Volay. Active Dead-time optimization for wide range Flyback active-clamp converter. PCIM Europe 2016, May 2016, Nuremberg, Germany. pp.CD. ⟨hal-01387598⟩
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