Y-source impedance-network-based isolated boost DC/DC converter

Yam P. Siwakoti, Graham Town, Poh Chiang Loh, Frede Blaabjerg

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5 Citationer (Scopus)


A dc-dc converter with very high voltage gain is proposed in this paper for any medium-power application requiring a high voltage boost with galvanic isolation. The proposed converter topology can be realized using only two switches. With this topology a very high voltage boost can be achieved even with a relatively low duty cycle of the switches, and the gain obtainable is presently not matched by any existing impedance network based converter operated at the same duty ratio. The proposed converter has a Y-source impedance network to boost the voltage at the intermediate dc-link side and a push-pull transformer for square-wave AC inversion and isolation. The voltage-doubler rectifier provides a constant dc voltage at the output stage. A theoretical analysis of the converter is presented, supported by simulation and experimental results. A 250 W down-scaled prototype was implemented in the laboratory to demonstrate the feasibility and performance of the proposed converter topology.
TitelProceedings of the 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA)
Antal sider5
ForlagIEEE Press
Publikationsdatomaj 2014
ISBN (Trykt)9781479927067
ISBN (Elektronisk)9781479927043
StatusUdgivet - maj 2014
Begivenhed2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA) - Hiroshima, Japan
Varighed: 18 maj 201421 maj 2014


Konference2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA)

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