Ultra-High Step-Up Interleaved Converter With Low Voltage Stress

In this paper, a new type of interleaved high step-up converter including coupled inductor is proposed. The proposed has an configuration on the input side to reduce ripple current and increase power level. Moreover, stacked structure output provides input/output (I/O) voltage gain. addition, can avoid extreme duty cycle, causing larger conduction losses, by combining lossless clamp circuit with method. These efficiency making semiconductor device low stress allowing use components ratings. Also, energy stored in leakage be recycled side, MOSFETs partially ZCS turned ON, diode reverse recovery problem alleviated. Finally, laboratory prototype 24V, 400V 500W was implemented demonstrate performance converter.