1. (1) Kotsopoulos, J. L. Duarte, and M. A. Hendrix: “A Soft-Switched Three Port Bidirectional Converter for Fuel Cell and Supercapacitor Applications”, Proc. of IEEE-PESC05, pp. 2487-2493, Recife, Brazil (2005-6)
2. (2) N. Chang: “Fuel Cell and Battery Hybrid System for Portable Electronics Applications”, 10th Annual International Conference SMALL FUEL CELLS 2008—Portable & Micro Fuel Cells for Commercial & Military Applications, Atlanta, USA (2008-5)
3. (3) Z. Jiang, L. Gao, and R. A. Dougal: “Flexible Multiobjective Control of Power Converter in Active Hybrid Fuel Cell/Battery Power Sources”, Proc. of IEEE-PESC04, pp. 3804-3811, Aachen, Germany (2004-6)
4. (4) T. Fujii and J. Itoh: “Circuit Configuration and Control Method of a Difference Voltage Control for Non-Isolated Buck-Boost DC/DC Converter Circuits”, SPC-07-126, LD-07-53 (2007) (in Japanese)
5. 藤井崇史.伊東淳一:「極性反転チョッパを用いた差分電圧制御による昇降圧形DC-DCコンバータ」, 半導体電力変換/リニアドライブ合同研究会, SPC-07-126, LD-07-53 (2007)