Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrical Characteristics of 28w class-Piezoelectric Transformer for Fluorescent Lamp Ballast as a function of Load Resistance

형광등 안정기용 고출력 (28W급)압전트랜스포머의 부하저항에 따른 전기적 특성

  • 황상모 (세명대학교 전기공학과) ;
  • 이정선 (세명대학교 전기공학과) ;
  • 류주현 (세명대학교 전기공학과) ;
  • 박창엽 (세명대학교 전기공학과) ;
  • 이수호 (경북대학교 전기전자공학부) ;
  • 이성일 (충주대학교 안전공학과)
  • Published : 2001.05.11
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Abstract

Contour vibration mode piezoelectric transformers were designed and fabricated to the square plate with size of $27.5{\times}27.5{\times}2.5(2.6,\;3.0)mm^3$ using PNW-PMN-PZT ceramics. Electrical characteristics of the piezoelectric transformer were investigated for fluorescent lamp ballast application. The electrical properties and characteristic temperature rise were measured using oscilloscope and infrared temperature sensor. A 28W fluorescent lamp was successfully driven by the fabricated transformers. After driving the lamp using Power Amplifier for 24 min, the output power, efficiency and characteristic temperature rise of PT2 piezoelectric transformer showed the appropriate values of 28.01 W, 99.43% and $11^{\circ}C$, respectively. The electronic ballast using PT2 piezoelectric transformer showed an excellent output power of 28.85 W and efficiency of 86.3%, respetively.

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