IET Power Electronics, a new journal from the IET brings together five principal power electronics themes. The submission of high quality research that focuses on one or more of these themes is strongly encouraged;*Applications of power semiconductor technology for the control and conversion of electric power in: electric machine drives; all forms of transport; manufacturing; heating; lighting; building services and industrial scale power conditioning.*Circuits commonly used including: all types of converters; inverters; active filters; switched mode power and uninterruptible power supplies.*Devices used in power electronic applications including: power semiconductor devices; photovoltaic devices; passive components; wound components; batteries and fuses.*Techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronic systems.*Performance management of power electronic systems including: power factor correction and harmonic spectrum management; thermal management; EMC and noise mitigation; fusing and protection.