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This paper proposes a two phase interleaved high step-up DC-DC converter. The interleaved structure helps to achieve reduced current ripple at the input side. The voltage gain is extended by using diode-capacitor pair and a coupled inductor with appropriate turns ratio. During turn-OFF condition, the voltage spikes appearing across the switch are reduced by using a passive lossless clamp circuit....
The input supply available from renewable sources like solar and fuel cells will be at low level. This must be stepped up considerably for practical utilization. In this paper, a boost converter derived topology consisting of two interleaved stages and five voltage multiplier cells (VMC) is presented. The proposed topology uses two switches with two inductors for the interleaved stage, 12 diodes and...
In this paper, a non-isolated high step-up high power DC-DC converter based on coupled inductor and voltage multiplier cell (VMC) is proposed for renewable energy applications. To obtain high voltage gain and high output power, three interleaved coupled inductors and three VMCs are used. Each VMC consists of secondary winding of the coupled inductor, two diodes and two capacitors which charge and...
A hybrid non isolated high step up high power converter with asymmetric interleaved boost converter and voltage multiplier cell with one multi-coupled inductor is proposed in this paper. Appropriate coupling of primary and secondary windings of the coupled inductor enhances the voltage gain and power delivering capability. Turns ratio of the coupled inductors is kept very small so that the leakage...
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