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A New ZVS Nonisolated Bidirectional DC-DC Converter
Madiseh N Asadi
Delshad M
International Review of Electrical Engineering, 2012, 7(4): 4714-4723.
In this paper, a new nonisolated bidirectional buck-boost dc-dc converter is introduced. In the proposed converter a simple auxiliary circuit consisting of an auxiliary inductor and a coupled winding to main inductor without any extra switch is used. This circuit provides zero voltage switching (ZVS) condition for switches and eliminates the reverse recovery problem of the body diodes. Moreover, this converter is controlled by pulse width modulation (PWM) which its implementation is simple. On the other hand, the switches of proposed converter are switched complementary together and thereby separate derive circuit is not necessary. The experimental and simulation results of the proposed bidirectional converter are given to confirm the theoretical analysis.
Bidirectional Dc-Dc Converter (BDC); Pulse Width Modulation (PWM); Zero-Voltage Switching (ZVS); Buck-Boost; Nonisolated
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