A Single-Input Dual-Output DC/DC Buck Converter for Rotorcraft Unmanned Aerial Vehicle

Application of small rotorcraft unmanned aerial vehicle (UAV) is expanded greatly with the improvement of its performance, which will lead to the increase of power units. To satisfy the different voltage requirements of these power units, a single-input and multiple-output converter is required during the development of small rotorcraft UAV. Here, we developed a single-input dual-output converter that can output two different voltages. The topology and working principle of the converter were analyzed. We then designed the basic structure of the converter. Furthermore, operation of the single-input dual-output converter was simulated using Simulink in Matlab. The voltage output of the converter was detected by oscilloscope. Our results indicate that this converter can satisfy the requirement of different voltage outputs of small UAVs.