Y-source impedance network

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

Research output: Contribution to journalArticlepeer-review

166 Citations (Scopus)


This letter introduces a new versatile Y-shaped impedance network for realizing converters that demand a very high-voltage gain, while using a small duty ratio. To achieve that, the proposed network uses a tightly coupled transformer with three windings, whose obtained gain is presently not matched by existing networks operated at the same duty ratio. The proposed impedance network also has more degrees of freedom for varying its gain, and hence, more design freedom for meeting requirements demanded from it. This capability has been demonstrated by mathematical derivation, and proven in experiment with an example of a single-switch dc-dc converter.

Original languageEnglish
Article number6697823
Pages (from-to)3250-3254
Number of pages5
JournalIEEE Transactions on Power Electronics
Issue number7
Publication statusPublished - Jul 2014


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