Performance Enhancement of Synchronous Buck Converter using modified Dual mode Control Scheme
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This paper presents a novel dual mode control scheme to enhance the performance of the synchronous buck converter (SBC). The SBC with this novel control strategy is capable of operating satisfactorily in continuous and discontinuous mode under different loading conditions. The proposed control scheme employs a new switching technique termed quasi-resonant valley to turn on switches when operating in discontinuous mode. The proposed control scheme with the switching technique also ensures zero voltage switching without any auxiliary devices. It also improves the efficiency when compared with the conventional pulse width modulation control scheme. It is also promising with the view point of low cost and built-in integrated circuits. The MatLAb simulation results offer useful information to obtain the desired output under different modes of operation. Experimental results are also provided to validate the simulation results.Keywords:
Buck converter
Mode (computer interface)
Dual mode
Modulation (music)
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