Earticle

초록

영어

This paper proposes fluorescent electronic ballast with high power factor and low line input current harmonics. The system performance can be improved by a charged pump circuit. Details of design and circuit operation are described. The proposed electronic ballast is modified from single - stage half bridge class D electronic ballast by adding capacitor parallel with each power switch and setting the circuit parameter to operate under class DE inverter condition. By using this proposed method the DC bus voltage can be reduced around by 50% compare with conventional class D inverter circuit. Because the power switches are operated at zero voltage switching condition and low dv/dt of class DE switching. The experimental results show that the proper frequency of the prototype is around 50 kHz with input power factor of 0.982, THDi 10.2% at full load and efficiency of more than 90%.

목차

Abstract
 NOMENCLATURE AND CONVENTIONS FOR SYMBOL
 1. INTRODUCTION
 2. CONCEPT OF ELECTRONIC BALLAST
 3. DESIGN OF ELECTRONIC BALLAST CIRCUIT
  3.1 Power Factor Correction
  3.2. Inverter Circuit
  3.3. Ballast Design
 4. EXPERIMENTAL RESULTS
 5. CONCLUSION
 REFERENCES

키워드

저자

• Sarayoot Thongkullaphat [ Department of Electrical Engineering, Faculty of Engineering and Architecture Rajamangala University of Technology Suvarnabhumi, Thailand ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  The International Journal of Advanced Smart Convergence

• 간기

  계간

• pISSN

  2288-2847

• eISSN

  2288-2855

• 수록기간

  2012~2025

• 십진분류

  KDC 326 DDC 380