The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Study of the Elimination of the Electrolytic Capacitors and Reduction of the Ripple Current on the Output Node in the One-Stage PFC Flyback Converter for the LED Lighting

LED 조명용 One-Stage PFC Flyback 컨버터에서의 출력단 리플 저감과 전해 커패시터의 제거에 관한 연구

  • Received : 2012.08.06
  • Accepted : 2012.10.29
  • Published : 2012.11.01
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Abstract

In the lighting industry, a Lighting Emitting Diode (LED) is increasingly used because of many advantages and a eco-friendly product comparing with the conventional lighting. However, the LED lighting has to include various AC/DC converters because the direct current is used for the LED lighting. Among a lot of power converters, the flyback converter is widely used for the LED lighting and includes some electrolytic capacitors for the voltage regulation. But the electrolytic capacitor has shorter lifetime than the LED element. It makes the expected life-time of the converter having the electrolytic capacitor shorter than the LED element. This paper proposes the single-stage PFC flyback converter without electrolytic capacitors. To verify the performance of the proposed converter, simulated and experimental works were carried out.

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References

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