Circuit for clamping bridge overvoltages in voltage-fed quasi-Z-source converter

Joanne Kitson, J N McNeill

Research output: Contribution to journalArticle (Academic Journal)peer-review

3 Citations (Scopus)
372 Downloads (Pure)


Unlike the voltage source converter, the Z-source converter can boost as well as buck the input voltage. However, the presence of physically large components in the impedance network introduces large parasitic inductances into power device commutation paths. This leads to consequent overvoltages at power device turn-off. A simple circuit for addressing this is presented. Practical results are given for a voltage-fed quasi-Z-source inverter with discontinuous input current.
Original languageEnglish
Pages (from-to)551-553
Number of pages2
JournalElectronics Letters
Issue number7
Early online date3 Mar 2016
Publication statusPublished - 1 Apr 2016

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