Mr Thompson will succeed William Yeates, who has resigned from the company and its board. Mr Thompson has over 30 years of management, operations and finance experience in electronics, computers, semiconductors and energy companies.

He was appointed to Power-One’s board of directors in August 2007. He has previously been a consultant to private equity firms. Mr Thompson was also the CFO of American Power Conversion (APC), a provider of real-time computing and data center infrastructure products and services.

Before joining APC, Mr Thompson was CFO of Artesyn Technologies, a provider of power electronics, where he also held operations and general management positions. He will continue to serve as a member of Power-One’s board of directors.

Jay Walters, Power-One’s chairman, said: Rich Thompson brings to our company the ideal set of skills and strategic insight required to leverage Power-One’s global scale and product breadth into the sustainable, profitable growth needed to drive shareholder value.