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    Rompower Inc. is a US based Company with branches in Tucson, Arizona, Rompower Energy Systems SRL and Bucharest Romania, Rompower International SRL. 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.

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  • Rompower was just annouced on the Google Green Blog as one of the finalist of the Little Box Challenge.
  • Registration open for seminar download at for PCIM2015 participants only.
  • On May, 17th, 2015 Ionel Dan Jitaru will present at PCIM 2015 Europe in Nuremberg, Germany a seminar on "Magnetic design fo very high Efficiency Power Conversion" (Sunday, 17.05) and a tutorial: "99% Efficiency for AC-DC and DC-DC Converters" (Monday, 18.05).

Brief resume of Ionel Dan Jitaru

Ionel "Dan" Jitaru is the founder and President of Rompower Energy Systems Inc., an internationally recognized engineering firm in the field of power conversion.

Mr. Jitaru has published 65 papers and held 45 professional seminars 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.


Rompower Energy Systems is an internationally recognized Research and Development Company in the field of power conversion. The primary goal of this engineering company is to develop new technologies designed to meet the needs of power conversion industry. New advanced technologies:

  • Soft-transition technique
  • Planar-magnetic structures for high-density DC-DC & AC-DC converters
  • Multilayer PCB with integrated-magnetic
  • Synchronized rectification applied to high-density DC-DC converters
  • High power modules DC-DC converters with low or high voltage input
  • Low cost front-end AC-DC converters
  • Special proprietary approach in packaging