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A novel dual active bridge configuration for wide voltage conversion ratios

  • A novel configuration of the dual active bridge (DAB) DC/DC converter is presented, enabling more efficient wide voltage range conversion at light loads. A third phase leg as well as a center tapped transformer are introduced to one side of the converter. This concept provides two different turn ratios, thus extending the zero voltage switching operation resulting in higher efficiency. A laboratory prototype was built converting an input voltage of 40V to an output voltage in the range of 350V to 650V. Measurements show a significant increase up to 20% in the efficiency for light-load operation.

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Author of HS ReutlingenWattenberg, Martin; Pfost, Martin
Erschienen in:2017 19th European Conference on Power Electronics and Applications (EPE '17 ECCE Europe) : 11-14 Sept. 2017
Place of publication:Piscataway, NJ
Document Type:Conference proceeding
Publication year:2017
Tag:DC power supply; ZVS converters; high frequency power converter; soft switching; transformer
Page Number:10
First Page:1
Last Page:10
DDC classes:620 Ingenieurwissenschaften und Maschinenbau
Open access?:Nein
Licence (German):License Logo  In Copyright - Urheberrechtlich geschützt