Han Rim Lee, Jin-Hyuk Park, and Kyo-Beum Lee, "Optimal Soft-Switching Scheme for a Bidirectional DC-DC Converters with Auxiliary Circuit," Journal of Power Electronics, vol. 18, no. 3, pp. 681–693, May 2018. -SCIE > Paper

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Paper

International Journals Han Rim Lee, Jin-Hyuk Park, and Kyo-Beum Lee, "Optimal Soft-Switching Scheme for a Bidirectional DC-DC Converters with Auxiliary Circuit," Journal of Power Electronics, vol. 18, no. 3, pp. 681–693, May 2018. -SCIE

2018

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This paper proposes a soft-switching bidirectional dc-dc converter (BDC) with an auxiliary circuit. The proposed BDC can achieve the

zero-voltage switching (ZVS) using an auxiliary circuit in the buck and boost operations. The auxiliary circuit supplies optimal energy

for the ZVS operation of the main switches. The auxiliary circuit consists of a resonant inductor, a back-to-back switch and two

capacitors. A small-sized resonant inductor and an auxiliary switch with a low-rated voltage can be used in the auxiliary circuit. Zero-

current switching (ZCS) turn-on and turn-off of the auxiliary switches are possible. The proposed soft-switching scheme has a look-

up table for optimal switching of the auxiliary switches. The proposed strategy properly adjusts the turn-on time of the auxiliary

switch according to the load current. The proposed BDC is verified by the results of PSIM simulations and experiments on a 3-kW

ZVS BDC system. 

 

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