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US 2012/0056865 A1Published application
Light emitting diode driving apparatus
AssigneePower Forest Technology Corporation
InventorsFu-Yuan Shih, Yang-Tai Tseng
Life of this patent
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Abstract
A light emitting diode (LED) driving apparatus is provided, which includes a power conversion circuit for receiving and converting an input power so as to generate a DC voltage to simultaneously drive a plurality of LED strings arranged in parallel; and a plurality of current regulation chips each having a single regulation channel and respectively corresponding to the LED strings, wherein an ith current regulation chip is only used for regulating a current flowing through an ith LED string, where i is a positive integer.
Claims10
A light emitting diode (LED) driving apparatus, comprising:
- a power conversion circuit, for receiving and converting an input power, so as to generate a direct current (DC) voltage to simultaneously drive a plurality of LED strings arranged in parallel;
- and
- a plurality of current regulation chips, each having a single regulation channel and respectively corresponding to the LED strings, wherein an ith current regulation chip is only used for regulating a current flowing through an ith LED string, where i is a positive integer.
Dependencies are inferred from the claim text.