9 research outputs found
SIDO coupled inductor-based high voltage conversion ratio DCâDC converter with three operations
Abstract Here, a singleâinput, dual output (SIDO) coupled inductorâbased high voltage conversion ratio DCâDC converter is proposed. The proposed converter has the capability of operating as a SIDO converter in a way that the terminal of the input voltage source is exchangeable among the three ports. Therefore, there are three different operation modes for the proposed converter. The voltage conversion ratios of the high voltage ports over the low voltage port can be improved by increasing the turn ratio of the coupled inductors. The main advantage of the proposed converter is achieving high voltage gains with lower number of components for the whole range of duty cycles comparing to the conventional multiâport high voltage gain converters. Moreover, two output voltages of the proposed converter can be simultaneously regulated on different constant levels with a good precision. In this study, the voltage conversion ratios, the inductorsâ average currents, the voltage and current stress on the switches are calculated theoretically. Finally, an experimental prototype of 30Â V input and 410, 260Â V outputs with the power 510Â W is implemented and the results are verifying the theoretical ones