Picture water droplets

Developing mathematical theories of the physical world: Open Access research on fluid dynamics from Strathclyde

Strathprints makes available Open Access scholarly outputs by Strathclyde's Department of Mathematics & Statistics, where continuum mechanics and industrial mathematics is a specialism. Such research seeks to understand fluid dynamics, among many other related areas such as liquid crystals and droplet evaporation.

The Department of Mathematics & Statistics also demonstrates expertise in population modelling & epidemiology, stochastic analysis, applied analysis and scientific computing. Access world leading mathematical and statistical Open Access research!

Explore all Strathclyde Open Access research...

Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter

Kitson, J. and McNeill, N. (2016) Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter. Electronics Letters, 52 (7). pp. 551-553. ISSN 0013-5194

Text (Kitson-McNeil-EL2016-Circuit-for-clamping-bridge-over-voltages-in-a-voltage-fed-quasi-Z)
Final Published Version
License: Creative Commons Attribution 3.0 logo

Download (697kB) | Preview


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.