.. to the Rompower web site, a US-based company, with branches in Tucson (USA) and Bucharest (Romania). Established in 1994 by Ionel Dan Jitaru, and acquired by Ascom Energy Systems (AES) division in February of 2001. In July 2003, Ascom Group, reached an agreement to sell Ascom Energy Systems to Delta Electronics Public Group.

With Ascom Group, Rompower Inc., is under Ascom Energy Systems division and also called as "Ascom Rompower" . Now with Delta Electronics Public Group, the over-all AES division is now called Delta Energy Systems (DES). Finally, "Ascom Rompower" is now Delta Energy Systems (Arizona) Inc.

This website is solely maintained for Rompower Inc. or Delta Energy Systems (Arizona), Inc. The over-all content (content being images, text, sound and video files, programs and scripts) of this website is copyright © Rompower, Inc. or Delta Energy Systems (Arizona), Inc.. All rights reserved.

What's Going On...

Links for the PCIM 2012 tutorial and seminar papers will be posted before June 2012 . Please email (Mr. Jitaru) or update your contact information or register to get a hold of any papers presented previously by Mr. Jitaru. Check out all (25) granted and pending/under-processing (17) patents . Upcoming Events: Please keep on visiting this site for future events! PCIM Europe 2012 Seminar 6 "Wireless Power Technologies" Location: Arvena Park Hotel Nuremberg When: Sunday, May 6, 2012; 14:00 - 17:30   The seminar will present a comprehensive overview of the wireless power technologies in the last several years and its direction in the near future. There will be presented the evolution of wireless power technology in close correlation with the market trend for portability. In the last several years there was a significant interest in wireless power generated by the need of convenience for portable equipment users. The seminar will present some of the technology behind the lower power levels up to 5W in the area of mobile phone and 15W to 120W for tablets and laptops to very high power (120KW) for automotive applications. The trend in automotive such as hybrid and electrical vehicles has generated a lot of interest for high power wireless charges and even for hands free wireless chargers. The seminar will focus mostly on the technological challenges of wireless power ranging from the magnetic, topology, communication and control. One of the biggest challenges in wireless power is magnetic structure, wherein the coupling is limited and the windings are placed in the vicinity of the gap, with all the negative consequences associated with the fringe magnetic field. New magnetic structures aimed in addressing these problems will be presented. In the topology section there will be presented chronologically the solutions which were used in the past starting from early nineties, when the inductive charges were developed by GM for the EV1 electric car to the present day. The control and communication section of wireless power will be also presented in the light of the most recent developments in intelligent power processing. The presentation will be highlighted with examples which will cover a very wide range of power from less than one watt to more than 120KW wireless charges. PCIM Europe 2012 Tutorial 1 "Trends In Soft Switching Topologies" Location: Arvena Park Hotel Nuremberg When: Monday, May 7, 2012; 09:00 - 17:00 The new developments in the semiconductor technology such as SiC and GaN have created the need for a reevaluation of the most suitable topologies in power conversion. Soft switching topologies have become popular in many power conversion applications in the last twenty years. Some of the soft switching topologies have added complexity and their practical use become more questionable with the availability of more ideal components. The seminar concentrates on the soft switching topologies which are addressing the soft commutation both in the primary and the secondary side without adding complexity. Well known topologies are presented in the light of the latest improvements, as well as new topologies which were recently derived. A section is dedicated to magnetic and packaging, which as a contributor of parasitic elements plays an important role in soft switching at higher frequency. The progress in semiconductors, magnetic and packaging will increase the operation frequency, and soft switching topologies will become a necessity for higher efficiency. There will be presented also Intelligent Power Processing techniques, wherein the use of digital control allows us to obtain soft switching over the entire operating conditions. The presentation will be highlighted with design guidance, design example and experimental results.

Brief Resume of Ionel Dan Jitaru

Ionel Dan Jitaru is the founder of Rompower Inc., later Ascom Rompower Inc. and Delta Energy Systems (Arizona) Inc., an internationally recognized engineering firm in the field of power conversion. Presently, he is the president of Delta Energy Systems ( Arizona ) Inc., one of the world's major players in Power Conversion. Today Delta Energy Systems is the largest company in the world in the field of power conversion.

Mr. Jitaru has published 48 papers and held 38 professional seminars professional at different International Conferences in the power conversion field, wherein several of them have received the best paper award.

Mr. Jitaru has pioneered several trends in power conversion technologies such as “Soft Switching”, “Full integrated multilayer PCB packaging”, “Synchronized rectification”, “Multi-cell Power Systems”. Some of these technologies have been covered by  twenty-five granted patents and seventeen pending patents.