Ultra-step-up DC-DC converter with integrated autotransformer and coupled inductor

Publication Type:
Conference Proceeding
Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2016, 2016-May pp. 1872 - 1877
Issue Date:
Filename Description Size
Paper.pdfPublished version1.55 MB
Adobe PDF
Full metadata record
© 2016 IEEE. This paper introduces a new single-switch nonisolated dc-dc converter with very high voltage transfer ratio and reduced semiconductor voltage stress. The converter utilizes an integrated autotransformer and a coupled inductor on the same core to achieve a high step-up voltage gain without extreme duty cycle. Further, an integrated passive regenerative circuit recycles the leakage energy of the coupled magnetics and transfer the leakage energy to the load, which helps to avoid high voltage spikes across the switch. This feature along with low stress on the switching device enables the designer to use a low voltage and low RDS-on MOSFET, which reduces the cost, and also the conduction and turn on losses of the switch. The principle of operation and theoretical analysis supported by key simulation and experimental waveforms are presented in details.
Please use this identifier to cite or link to this item: