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The ‘re-lift’ converter is derived from the self-lift converter and performs a positive-to-positive DC–DC step-up voltage conversion with high efficiency, high power density and cheap topology in a simple structure. The output voltage and current of this converter are smooth. Two capacitors are applied to lift the output voltage by twice of the input voltage. The output voltage of the re-lift converter is double that of the self-lift converter.
F.L. Luo (1998) studied this question.