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A new three-phase DC-DC PWM boost converter that is suitable for use in renewable energy applications is proposed in the paper. The number of components in the proposed circuit is fewer that other previously proposed converters of the same type, resulting in lower cost and simpler operation. The paper discusses the operation of the converter, presents a procedure for its design, and demonstrates the...
A high-frequency isolated bidirectional three-level dc–dc converter is proposed for high voltage applications. Direct current slew rate (DCSR) control of leakage inductance is proposed to minimize conduction loss and current stress in facing the load variation, the mismatch of turns ratio and circuit parasitic parameters. The mode analysis and the disadvantages of conventional PWM plus phase-shift...
This paper proposes a high voltage gain single switch boost converter for sustainable energy applications using coupled inductor cells and switched capacitor. The circuit consisting of coupled inductor, switched capacitor and voltage multiplier cell. Using the energy stored in the coupled inductor, switched capacitor charges during off period. The performance of the converter will increase due to...
A novel zero-voltage switching (ZVS) converter is studied in this paper. The proposed converter consists a three-level converter and a LLC converter with same active switches to have wide ZVS load range and to reduce conduction losses at freewheeling interval. Series resonant converter with fixed switching frequency is adopted to improve ZVS load range of lagging-leg switches. The primary current...
A soft switching converter with parallel-connected full-wave rectifiers is presented. In the proposed converter, the primary windings of two transformers are connected in series. Two full-wave rectifiers with ripple current cancellation are connected in parallel at the output side to reduce the current stress of the secondary winding of transformer. The clamp circuit based on an auxiliary switch and...
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