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Management Team

Dr. Ed Zschau, Chairman of the Board of Directors
Dr. Zschau has had a long and distinguished career in business, public policy, and academia. Among his many accomplishments, he was founder and CEO of System Industries, a
Silicon Valley computer products company, from 1968 to 1982, and General Manager of IBM’s Storage Systems Division from 1993 to 1995. He served as Director and Chairman of the American Electronics Association in the 1970s and as U.S. Congressman from Silicon Valley for two terms in the 1980s. Dr. Zschau has taught in the Graduate Schools of Business at both Harvard and Stanford Universities, and currently is a Visiting Lecturer with rank of Professor at Princeton University in the Electrical Engineering Department.

Dr. Greg Olsen, Board of Directors
Dr. Olsen received his BS Physics, a BSEE and MS Physics from
Fairleigh Dickenson University, and a Ph.D. in Material Science from the University of Virginia. In 1972, Dr. Olsen joined RCA Laboratories, and in 1984 founded EPITAXX Inc., which was acquired by Nippon Sheet Glass in 1990. He founded Sensors Unlimited in 1991, which was acquired by Finisar Corp. in 2000 and repurchased in October 2002, and sold again in 2005 to Goodrich Corp. Dr. Olsen is a Fellow of the IEEE, has been active in many technical societies and has ten patents and over 100 publications. He was the 3rd civilian to fly to the International Space Station and is now President of GHO Ventures in Princeton, NJ.

Dr. Rudy Limpaecher, Board of Directors
Dr. Limpaecher is the inventor of AC-link technology and remains a key advisor to the team on technical issues. He has 30-plus years of experience in the pulsed power field with Northrop Corporation, AVCO Research Lab and SAIC. Rudy received a PhD. in Plasma Physics from UCLA and holds 12
US patents.

Darren Hammell, President & CEO, Board of Directors
Mr. Hammell received a BSE in Computer Science Engineering from
Princeton University, where, along with Mr. Holveck, he received the Johanssen Dike Award for Excellence in Undergraduate Research. After winning 1st place in the Princeton University Business Plan Contest, he remained in Princeton and became President & CEO of Princeton Power Systems at its founding. Mr. Hammell is active in several industry groups and frequently gives speeches and presents white papers at industry trade shows.

Mark Holveck, Chief Technology Officer
Mr. Holveck is a co-founder of Princeton Power Systems, and received a BSE in Mechanical and Aerospace Engineering from
Princeton University, where he and Mr. Hammell received the Johanssen Dike Award for Excellence in Undergraduate Research. Mr. Holveck leads the development of advanced technologies for several applications, and has a background in state-of-the-art motor control techniques.

Erik Limpaecher, Vice President of Engineering
Mr. Limpaecher is a co-founder of Princeton Power Systems, and received a BSE in Electrical Engineering from
Princeton University. Mr. Limpaecher designed the first control systems for the AC-link technology and has been the principal controls design architect for every existing AC-link system since the technology’s inception.


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