TY - JOUR
T1 - Novel isolated high-step-Up DC-DC converter with voltage lift
AU - Liang, Tsorng Juu
AU - Lee, Jian Hsieng
AU - Chen, Shih Ming
AU - Chen, Jiann Fuh
AU - Yang, Lung Sheng
PY - 2013/1/1
Y1 - 2013/1/1
N2 - A novel two-switch high-step-up isolated converter with voltage lift is proposed in this paper. The proposed isolated converter utilizes a transformer with low turn ratio to achieve high step-up gain. The secondary winding charges two boosting capacitors in parallel as switches during the switch-on period, and two boosting capacitors are discharged in series during the switch-off period. Thus, the converter has high voltage gain with appropriate duty ratio. In addition, by using two clamping diodes and a capacitor on the primary side, leakage energy is recycled, and the voltage spikes of the two active switches are clamped, thereby improving conversion efficiency. Finally, experimental results based on a prototype implemented in the laboratory with an input voltage of 24 V, an output voltage of 200 V, and an output power of 200 W verify the performance of the proposed isolated converter; full-load efficiency is nearly 93%.
AB - A novel two-switch high-step-up isolated converter with voltage lift is proposed in this paper. The proposed isolated converter utilizes a transformer with low turn ratio to achieve high step-up gain. The secondary winding charges two boosting capacitors in parallel as switches during the switch-on period, and two boosting capacitors are discharged in series during the switch-off period. Thus, the converter has high voltage gain with appropriate duty ratio. In addition, by using two clamping diodes and a capacitor on the primary side, leakage energy is recycled, and the voltage spikes of the two active switches are clamped, thereby improving conversion efficiency. Finally, experimental results based on a prototype implemented in the laboratory with an input voltage of 24 V, an output voltage of 200 V, and an output power of 200 W verify the performance of the proposed isolated converter; full-load efficiency is nearly 93%.
UR - http://www.scopus.com/inward/record.url?scp=84870454988&partnerID=8YFLogxK
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U2 - 10.1109/TIE.2011.2177789
DO - 10.1109/TIE.2011.2177789
M3 - Article
AN - SCOPUS:84870454988
VL - 60
SP - 1483
EP - 1491
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
SN - 0278-0046
IS - 4
M1 - 6093745
ER -