Sparton has obtained two patents from the U.S. Patent and Trademark Office for a switching mode power amplifier design and a method to shield circuits from electromagnetic radiation.
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The company said Tuesday it invented a printed circuit board assembly that uses nickel chromium and nickel phosphorus materials to protect electronics and tested the system on sonobuoys in an effort to address the U.S. Navy's electromagnetic radiation to ordnance requirements.
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The power amplifier is designed to mitigate effects of finite transition time and increase performance of the military branch's AN/SSQ-125 sonobuoy.
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Schaumburg, Ill.-based Sparton agreed to sell itself to New York-based investment firm Cerberus Capital Management for $18.50 per share.