Method for reducing electromagnetic interference radiated from a power supply arrangement
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United States of America Patent
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Feb 3, 2015
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app pub date -
Jun 30, 2009
filing date -
Jun 30, 2009
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Abstract
A method for reducing electromagnetic interference radiated from a power supply arrangement. A plurality of switching mode power supply units are connected to an external device. Each switching mode power supply unit includes a ground point. The radiated electromagnetic interference is reduced by synchronizing a switching frequency of each switching mode power supply unit, such that all of the synchronized switching mode power supply units have an identical switching frequency, thereby reducing the difference in electric potential between the ground points. A corresponding power supply arrangement.
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