Power modulators and repetitive pulsed power [Editorial}

We are pleased to present this fourth special issue of the IEEE Transactions on Dielectrics and Electrical Insulation (TDEI) on Power Modulators and Repetitive Pulsed Power. A call for manuscripts for this volume was issued in TDEI and in conjunction with the 2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC), which was held in San Diego, CA, USA during June 3-7, 2012. This meeting has emerged from a long tradition of jointly held International Power Modulator Symposia and High Voltage Workshops which eventually merged into a single conference for the first time in 2010 and again in 2012. The IPMHVC provides a forum for researchers and practitioners, who are engaged with the science and technology of power modulators and repetitive pulsed power as well as closely interrelated research on high voltage questions and developments, to meet and exchange ideas and the latest advances in these fields. There has been a strong and growing international interest in these topics, as is indicated by participants from 26 different countries and a steadily increasing number of abstract submissions, which exceeded 300 at this most recent IPMHVC.