Modified boost converter with continuous inductor current mode and ripple free input current

The boost topology is very popular in industry. However, the input inductor current ripple affects its ability to meet EMI requirements. A ripple-free input inductor current boost topology operating in continuous inductor current mode is introduced in this paper. It is of simple topology and simple control strategy (the same as PWM). The proposed boost topology retains the advantages of the conventional boost topology, but with ripple-free input current. Simulation and experimental results are presented to verify the predicted theory.