Kinetic Technologies says it has acquired Akros Silicon in a deal that combines a pair of semiconductor companies that focus on managing power use. Sunnyvale-based Kinetic, led by CEO Kin Shum, didn't disclose financial details of the acquisition of San Jose-based Akros, which is led by CEO Elie Antoun. Get the free daily TechFlash Silicon Valley newsletter Akros had raised about $47 million since it was founded in 2005, according to Crunchbase. Its backers include Levensohn Venture Partners,...