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The generalised steady-state analysis of the multi-phase interleaved boost converter with coupled inductors operated in continuous inductor current mode is addressed. The analytical expressions for efficiency, inductor and input currents, and output voltage are derived from the transformed average state-space model. Generalised expressions for the input and inductor current ripples and the output voltage ripple are also derived for various inductor couplings and the characteristics are analysed according to the inductor couplings. The steady-state performance is verified experimentally.
Date of Publication: 6 May 2005