Light-emitting diode lighting apparatus
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United States of America Patent
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Mar 13, 2018
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app pub date -
Jul 8, 2013
filing date -
Jul 9, 2012
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Abstract
A lighting apparatus using light emitting diodes is disclosed. A plurality of light-emitting groups are connected to each other in series at an output terminal of a rectification unit. Current diodes as current sources are branched from a node between the light-emitting groups. Current values set in the current diodes are set according to the amount of current flowing into the light-emitting groups. Therethrough, the amount of current flowing in each light-emitting group can be determined.
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