• Aniruddh Kashyap Department of Electrical Engineering, S. A. T. I. Vidisha - 464001 (M.P.), India


Wide Input Wide Output (WIWO) DC-DC converter is a combination of buck and boost converters through a coupled inductor. It has an output voltage that is either greater than or less than the input voltage. Step down and step up mode is switched by a proper control scheme. The WIWO will minimize the input voltage 48 Vdc to 19 Vdc also maximize the input voltage 48 Vdc to 230 Vdc with the switching frequency 67 kHz for buck and 2 kHz for boost. The simulation software used for simulation of WIWO converter is MATLAB SIMULINK.


H. Cheng, K. Smedley, and A. Abramovitz, “Wide input wide output (WIWO) dc–dc converter,” IEEE Transactions on Power Electronics, vol. 25, no. 2, Feb 2010.

Maksimovic and S. CUK, “Switching converter with wide dc conversion range,” IEEE Trans. Power Electron., vol. 6, no. 1, pp. 151–157, Jan. 1991.

K. Yao, M. Ye, M. Xu, and F. C. Lee, “Tapped-inductor buck converter for high-step-down dc–dc conversion,” IEEE Trans. Power Electron., vol. 20, no. 4, pp. 775–780, Jul. 2005.

J.-H. Park and B.-H. Cho, “Nonisolation soft-switching buck converter with tapped-inductor for wide-input extreme step-down applications,” IEEE Trans. Circuits Syst. I, Reg. Papers, vol. 54, no. 8, pp. 1809–1818,Aug. 2007.

K. Yao, Y. Ren, J. Wei, M. Xu, and F. Lee, “A family of buck type dc–dc converters with autotransformers,” in Proc. Appl. Power Electron. Conf. Expo. (APEC 2003), pp. 114–120.

K. Nishijima, K. Abe, D. Ishida, T. Nakano, T. Nabeshima, T. Sato, and K. Harada, “A novel tapped-inductor buck converter for divided power distribution system,” in Proc. IEEE PESC Conf. (PESC 2006), Jun., 18–22, pp. 1–6.

G. Spiazzi and S. Buso, “Power factor preregulator based on modified tapped-inductor buck converter,” in Proc. IEEE PESC Conf., 1998, vol. 2, pp. 873–879.

F. L. Luo and H. Ye, “Positive output cascade boost converters,” Proc. Inst. Electr. Eng. Electr. Power Appl., vol. 151, no. 5, pp. 590–606, Sep.2004.

Q. Zhao and F. C. Lee, “High efficiency, high step-up dc–dc converters,” IEEE Trans. Power Electron., vol. 18, no. 1, pp. 65–73, Jan. 2003.

N. Vazquez, L. Estrada, C. Hernandez, and E. Rodriguez, “The tapped- inductor boost converter,” in Proc. IEEE Int. Symp. Ind. Electron, Jun., 4–7, 2007, pp. 538–543.

K. C. Tseng and T. J. Liang, “Novel high efficiency step-up converter,” Proc. Inst. Electr. Eng. Electr. Power Appl., vol. 151, no. 2, pp. 182–190, Mar. 2004.