Abstract—This paper proposes a high-efficiency buck-boost converter with reduced switching losses. Four power transistors generate more conduction and more switching losses when the positive and negative buck-boost converter runs in buck-boost mode. Utilizing the mode-select circuit, the projected converter can reduce the loss of switches and let the buck-boost converter run in buck, buck-boost, or boost mode. By the addition of feed-forward techniques, the transient responses are improved when the supply voltages are changed. The analysis and design method of the proposed work is carried out using MATLAB/ Simulink.

Index Terms—Feed-forward techniques, Mode select, Buck-boost, Converter, Matlab/simulink

Cite: Mayola Miranda and Pinto Pius A J, "A HIGH EFFICIENCY BUCK-BOOST CONVERTER WITH REDUCED SWITCHING LOSSES," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 1, No. 1, pp. 272-276, March 2015.