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Dual Switch Converter with Passive Lossless Clamping for High Step up Voltage Gain
Abstract
A dual switch converter with passive lossless clamping is used to obtain high step-up voltage gain is proposed. The proposed converter outputs larger voltage than the input voltage by using an improved dual switch converter. The maximum output voltage is obtained by high voltage conversion ratio of the dual switch converter with passive lossless clamping. The conventional dc-dc boost converters are unable to provide high step-up voltage gain due to the effect of power switches, rectifier diodes and the equivalent series resistance of capacitors and inductors. The improved dual switch converter can achieve high voltage gain with a condition that the parameters are inconsistent. The proposed converter has an advantage of low voltage and current stress on the switches compared to the transformer less dc-dc converters. The proposed converter also provides the solution to balance the voltage across the switches and to suppress the resonance. This is possible due to the presence of passive lossless clamping. The simulation of the circuit with 24V input, 100V/0.1A output is done using MATLAB software. The simulation results indicate an improved voltage waveform with high step up voltage gain.
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References
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DOI: http://dx.doi.org/10.36039/AA082016003.
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