Adaptive Modified Current-Mode Control of a Hybrid High Voltage Gain Converter

An adaptive modified current-mode control scheme is applied to the control of a hybrid high voltage gain dc-dc converter with an uncertain load resistance. The hybrid high-gain converter provides a higher voltage gain as compared to the traditional boost converter. The proposed control scheme for the converter has additional features not found in the existing current-mode control strategies which will enhance performance. The stability analysis of the controlled system is performed to gain some insight into its closed-loop behavior. A comparative study of the proposed controller and the existing current-mode controllers under various parameter changes is carried out to show its features. Experimental results are also provided.