1. Comparative study of pulsed DC-link voltage converters
2. [2] Y. Tsuruta and A. Kawamura, “A High Efficiency and High Power Chopper Circuit QRAS using Soft-Switching under Test Evaluation at 8KW, ” J. Power Electron., vol. 6, no. 1, pp. 1-7, Jan. 2006.
3. [3] IEEJ: “Recent development on soft-switching, ” IEEJ Technical Report, no. 899, pp. 4-8, Sept. 2002 (in Japanese).
4. Zero-Voltage-Switching PWM Hybrid Full-Bridge Three-Level Converter
5. Single phase power factor correction: a survey