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The loss distribution of the interleaved boost converter is analyzed in high step-up non-isolated applications in this paper. A novel interleaved ZVT boost converter is derived from its isolated counterpart to overcome the disadvantages of the conventional boost converter in high step-up conversion. With the proposed converter, the extreme duty cycle is avoided and the switch voltage stress is reduced...
An improved ZVT PWM boost rectifier with high power factor and low conduction losses is proposed in this paper. Only one auxiliary switch is used in the active soft switching circuit and all semiconductors are under soft switching conditions. A prototype of boost converter rated at 1kW has been built to confirm the effective of the converter.
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