The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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A Study on Optimal Selection of Inductance for Power Factor Improvement of Buck AC/DC LED Driver With Wide Input Voltage Range

입력 전압 범위가 넓은 벅 AC/DC LED 구동기의 역률 개선을 위한 최적 인덕턴스 선택에 관한 연구

  • Kim, Marn-Go (Dept. of Control & Instrumen. Eng., Pukyong Nat'l University)
  • Received : 2021.01.28
  • Accepted : 2021.03.18
  • Published : 2021.08.20
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Abstract

Selection of the optimal inductance for power factor improvement of a buck AC/DC light-emitting diode (LED) driver with wide input voltage range is described in this study. The power factor change based on the slope compensation is obtained for various normalized output current (NOC) values using discrete-time domain analysis. The possibility of implementing constant slope compensation is described using power factor curves for various NOC values. NOC = 0.5 is chosen for the value of inductance with consideration for the simple implementation and reduction of inductor size. Experimental results of the inductance corresponding to NOC = 0.5 are presented.

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Acknowledgement

이 논문은 부경대학교 자율창의학술연구비(2019)에 의해 연구되었음.

References

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