TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Wattenberg, Martin
A1  - Pfost, Martin
T1  - A dual active bridge topology with increased voltage conversion range
T2  - 2018 20th European Conference on Power Electronics and Applications (EPE '18 ECCE Europe) : 17-21 Sept. 2018
N2  - We present a dual active bridge topology suitable for wide voltage range applications covering all combinations of 200V to 600V on the input and 20V to 60V on the output with constant power of 1kW.We employ a stepped inductance scheme to adjust the effective inductance of the converter, thus extending the efficient operation range. Using a variable switching frequency between 35 kHz and 150 kHz with operation-point-dependent limits further increases the performance of the converter. A prototype was built and the proposed changes have been compared to a fixed frequency, fixed inductance implementation. Measurements show a maximum loss reduction of 40 %, leading to a peak efficiency of 97% while maintaining constant output power over the entire working area.
KW  - DC power supply
KW  - ZVS converters
KW  - soft switching
KW  - transformer
KW  - high frequency power converter
Y1  - 2018
UR  - https://ieeexplore.ieee.org/document/8515334
SN  - 978-90-75815-28-3
SB  - 978-90-75815-28-3
SP  - 1
EP  - 9
S1  - 9
PB  - IEEE
CY  - Piscataway, NJ
ER  -