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Nonisolated Two-Phase Interleaved LED Driver With Capacitive Current Sharing
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DOI：10.1109/TPEL.2017.2695006.png)
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Abstract
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In this paper, a nonisolated two-phase interleaved LED driver with capacitive current sharing is presented. In the proposed LED driver, the current sharing capacitor can be used to balance the input inductor currents and the LED currents. Furthermore, only one grounded LED string current is sensed and controlled. Moreover, under the interleaved control, the input current ripple can be reduced. Finally, the operating principles, analyses, and experimental results are provided to verify the effectiveness of the proposed LED driver.
Keywords:
Current sharing
interleaved
light-emitting diode (LED) driver
two-phase
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