Soft Switching Boost Converter with a Fly back Snubber For Higher Power Applications

This paper presents dc-dc converter operation of boost converter are an enabling soft switching technology. This proposed converter configuration can achieve zero voltage switching. The circuit consists of a general boost Converter with an auxiliary circuit which has a additional switch, and resonant components (snubbers). Boost converter has loss mechanism, current stress and voltage stress. by using this auxiliary switch and resonant components not only achieving soft switching feature and also reduce switching loss current and voltage stress, reduce harmonics and ripples in the input current and output voltage. Main and auxiliary switch achieving ZVS and ZCS simultaneously reduce losses. This leads to improving the efficiency of DC-DC conversion. This theoretical analysis, operational principle, design method is presented. MATLAB simulations are performed to verify the theoretical analysis.