The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
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Compensation of temperature characteristics by frequency control of an electronic ballastfor a compact fluorescent lamp

콤팩트 형광램프용 전자식 안정기의 주파수 제어에 의한 온도보상

  • Song, Sang-Bin (Dept.of Electronics Engineering, Chonnam National Universityisy) ;
  • Gwark, Jae-Young (Dept.of Electronics Engineering, Chonnam National Universityisy) ;
  • Yeo, In-Seon (Dept.of Electronics Engineering, Chonnam National Universityisy)
  • 송상빈 (전남대 공대 전기공학과 대학원) ;
  • 곽재영 (전남대 공대 전기공학과) ;
  • 여인선 (전남대 공대 전기공학과 및 RRC)
  • Published : 1999.01.01
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Abstract

Compact fluorescent lamps are very sensitive to the variation of ambient temperature. This paper investigates the temperature characteristics of a 15[W] compact fluorescent lamp, and compensates the variation of light output by frequency control of its electronic ballast. Circuit parameters for the inverter of the electronic ballast are obtained by analyzing the R-L-C equivalent circuit for the inverter and the lamp. The optimum ratio of the two capacitance($C_1$/$C_2$), which are connected with the lamp in series and in parallel, respectively, is determined which consideration of the temperature variation within a range of 10~35[$^{\circ}C$]. As a result a value of 10 for the ratio is obtained at an operating frequency of 57[kHz], and with this value the frequency control works well for temperature compensation. Its validity is verified by investigating light output stabilization characteristics resulting from frequency control of the lamp at various temperatures.

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References

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