Ripple suppression circuit, suppression method and LED lighting apparatus
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United States of America Patent
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Feb 20, 2018
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app pub date -
Dec 5, 2016
filing date -
Dec 22, 2015
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Abstract
A ripple suppression circuit configured to suppress a current ripple provided to a load by a DC converter, can include: a ripple voltage sampling circuit coupled to output terminals of the DC converter, where the ripple voltage sampling circuit is configured to generate a ripple reference voltage that represents a ripple voltage of an output voltage of the DC converter; and a voltage regulation circuit coupled to the load and the ripple voltage sampling circuit, where the voltage regulation circuit is controllable by the ripple reference voltage such that a voltage across the voltage regulation circuit is consistent with the ripple voltage.
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