Electronic Ballast Design for Fluorescent Lamps with High Power Factor

Subject Areas : power electronic

Omid Sharifiyana ¹ , Majid Dehghani ² , Ghazanfar Shahgholian ³ , Sayyed Mohammad Mehdi Mirtalaei ⁴ , Masoud Jabbari ⁵

1 - Najafabad Branch, Islamic Azad University, Najafabad, Iran
2 - Najafabad Branch, Islamic Azad University
3 - Najafabad Branch, Islamic Azad University
4 - Najafabad Branch, Islamic Azad University
5 - Najafabad Branch, Islamic Azad University

Received: 2022-08-15 Accepted : 2022-11-14 Published : 2023-03-01

Keywords: power factor, Total harmonic distortion, fluorescent lamp,

Abstract :

Fluorescent lamps are used as one of the most important sources of light in residential and commercial applications. A method to increase the power factor in electronic ballasts is proposed in this paper. For the power factor correction circuit, the amplification-based switching method is used, which increases the power factor and provides the DC voltage for starting the half-bridge inverter circuit. Finally, the laboratory sample of the circuit is made at a voltage of 110 V with a power factor of 0.996. This circuit has an efficiency of 94.7% and a total harmonic distortion less than 5%. In addition, the pressure on the lamp at the moment of commissioning is reduced, which increases the life of the lamp.