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In order to reduce size of bidirectional DC-DC converter, conventional topologies using hard switching method operate with high frequency. As switching frequency is getting higher, switching loss is increased. Conventionally an auxiliary circuit is implemented by using soft switching method in order to overcome this drawback,. The switch of the auxiliary circuit, however, is operated as hard switching...
In this paper, we have proposed a parallel resonant soft switching inverter based on delta-modulation method. A conventional full-bridge inverter generates switching losses due to a hard switching. The proposed inverter operates soft switching using a DC-link switch and resonant circuit. Therefore, all of the switches in the proposed inverter are operate with soft switching. As a result, the proposed...
This paper proposes a photovoltaic parallel resonant dc-link soft switching inverter using hysteresis current control. The proposed system includes a dc-link switch for soft switching. When the dc-link switch is turned off, the inverter switches are turned on and off with zero voltage switching using hysteresis current controller. So, all of the switches in the proposed inverter are turned on and...
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