A comparative study of linear current-mode controllers (using input and output inductor currents) for regulation of a high-order boost dc-dc converter is presented. The high-order boost converter gives a much higher output voltage as compared with that obtained from the conventional boost dc-dc converter. It is demonstrated that the current-mode controller using the output inductor current is the most appropriate for the high-order boost converter. Experimental results showing the effectiveness of the proposed controller in the presence of load disturbances are also presented.
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