Comparative study of current-mode controllers for a high-order boost dc-dc converter

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.