Analysis and design of zero-voltage switching high gain interleaved boost converter

This paper presents analysis and design of softswitching interleaved boost converter. The proposed converter exhibits higher voltage gain, almost double, in comparison to the well-established interleaved boost converter. Furthermore, a zero-voltage switching is implemented to all the switching devices by using resonance principle. A steady-state analysis is made, and then necessary and sufficient conditions for zero-voltage switching are established. The proposed converter design and analysis is predetermined for a 12 to 100 V, 50 W prototype in simulation and then compared with experimental results. Experimental measurements are in close correlation to simulation results.