TY - GEN
T1 - Design and implementation of a bidirectional DC-DC forward/flyback converter with leakage energy recycled
AU - Lu, Yi Ju
AU - Liang, Tsorng Juu
AU - Lin, Ci Hong
AU - Chen, Kai Hui
N1 - Funding Information:
The author gratefully acknowledge financial support from the Ministry of Science and Technology, Taiwan under project No. 105-2218-E-006 -009 - and No. 105-2221-E-006 -177 -MY2.
Funding Information:
The author gratefully acknowledge financial support from the Ministry of Science and Technology, Taiwan under project No. 105- 2218-E-006 -009 - and No. 105-2221-E-006 -177 -MY2.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/5
Y1 - 2017/12/5
N2 - A bidirectional interleaved forward-flyback DC-DC converter with leakage energy recycled is proposed in this paper. The proposed converter uses two transformers to reduce the current stress on the power components to reduce the conduction loss and improve the efficiency. When the proposed converter is operated in the step-up mode, the voltage across switches is clamped at the input voltage, and the leakage energy is recycled to the voltage source. When the proposed converter is operated in the step-down mode, the voltage of switches is clamped at the input voltage, and the leakage energy is recycled to the clamping capacitor or the voltage source. As the proposed converter is based on flyback converter, it is characterized with simple structure. Since the leakage inductance energy is recycled, the conversion efficiency is improved compared to conventional flyback converter. Finally, a laboratory prototype circuit with 200 V/24 V and output power 500 W is implemented to verify the feasibility of the proposed converter. The highest efficiency in the step-up and stepdown stage is 92.3% and 95.5% respectively.
AB - A bidirectional interleaved forward-flyback DC-DC converter with leakage energy recycled is proposed in this paper. The proposed converter uses two transformers to reduce the current stress on the power components to reduce the conduction loss and improve the efficiency. When the proposed converter is operated in the step-up mode, the voltage across switches is clamped at the input voltage, and the leakage energy is recycled to the voltage source. When the proposed converter is operated in the step-down mode, the voltage of switches is clamped at the input voltage, and the leakage energy is recycled to the clamping capacitor or the voltage source. As the proposed converter is based on flyback converter, it is characterized with simple structure. Since the leakage inductance energy is recycled, the conversion efficiency is improved compared to conventional flyback converter. Finally, a laboratory prototype circuit with 200 V/24 V and output power 500 W is implemented to verify the feasibility of the proposed converter. The highest efficiency in the step-up and stepdown stage is 92.3% and 95.5% respectively.
UR - https://www.scopus.com/pages/publications/85045988096
UR - https://www.scopus.com/pages/publications/85045988096#tab=citedBy
U2 - 10.1109/ACEPT.2017.8168572
DO - 10.1109/ACEPT.2017.8168572
M3 - Conference contribution
AN - SCOPUS:85045988096
T3 - 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
SP - 1
EP - 6
BT - 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 Asian Conference on Energy, Power and Transportation Electrification, ACEPT 2017
Y2 - 24 October 2017 through 26 October 2017
ER -