Abstract
A third-order boost point of load converter capable of giving higher voltage gain, identical/similar to fifth-order converters, is proposed. In view of the lower order and higher boosting feature, the converter is more suitable to interface the given low voltage source to a high-voltage dc point of load or to a dc-bus. Furthermore, the proposed converter dynamics is simpler as its control-to-output transfer function is free from right half s -plane zeros. Component design expressions are formulated through a steady-state analysis. The boosting factor of the proposed converter is higher than the traditional boost and other reported fourth-order boost converters. The transfer functions are formulated from the state-space model and then a digital controller is designed in the z-domain. The proposed converter features are demonstrated through analysis and then compared with sample experimental observations.
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