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Research on Boost Soft-switching Converter

Yingjie Xiong

Abstract


In order to improve the circuit working efficiency of zero-voltage zero-current transition Boost converter, an improved modulation strategy was proposed. The main switch can  only  achieve  zero-current  turn-on under traditional modulation strategy. However, the change to the turn-on time of main switch and the turn-off time of auxiliary switch can make the main switch achieve zero-voltage  zero-current  turn-on  and  the  auxiliary switch realize zero-voltage zero-current turn-off in advance as well. The simulation results show that the main switch can achieve zero-voltage zero-current turn-on and the auxiliary switch could realize zero- voltage zero-current turn-off, the circuit working efficiency was improved.


Keywords


boost converter; zero-current turn-on; zero-voltage zero-current turn-off

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References


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DOI: http://dx.doi.org/10.18686/esta.v4i1.38

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