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This paper proposes a high step-up dc-dc converter based on the Cockcroft-Walton (CW) voltage multiplier without a step-up transformer. Providing continuous input current with low ripple, high voltage ratio, and low voltage stress on the switches, diodes, and capacitors, the proposed converter is quite suitable for applying to low-input-level dc generation systems. Moreover, based on the -stage...
This paper describes a hybrid current-fed push-pull converter with wide input voltage range and low input current ripple for voltage step up applications. With the proposed topology the primary windings of the transformers work in series when the input voltage is high, and in parallel when the input voltage is low. In this way, the conversion gain of the converter is extended, which makes this topology...
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