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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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  • At APEC 2017 in Tampa (March 26-30), Rompower Energy Systems had introduced the latest 65W adapter with the word's highest efficiency over the entire input voltage range and a power density above 20W/in3
    Click Here for more information.
  • In May 2017, at PCIM 2017 in Nuremberg, Ionel Dan Jitaru from Rompower Energy Systems will present a seminar, "Modern Magnetic Technologies for High Efficiency and High Power Density "(Sunday, May 14th) and a tutorial: "New Trends in Power Conversion for Very High Efficiency and High Power Density" (Monday, May 15th).
  • On May 18th Ionel Dan Jitaru will present a Key Note paper entitled "Evolution in Topologies as a Result of new Devices and Enabling Technologies".
    Click Here for more information on PCIM 2017 programs

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