A New Control Scheme of Class-E Electronic Ballast with Low Crest Factor

Hyun-Son Chon; Dong-Yun Lee; Dong-Seok Hyun

A New Control Scheme of Class-E Electronic Ballast with Low Crest Factor

Hyun-Son Chon

Dong-Yun Lee

Dong-Seok Hyun

Vol. 3, No. 3, pp. 175-184, Jul. 2003

10.6113/JPE.2003.3.3.175

Class-E inverter

Electronic ballast

Crest Factor

Pulse-Frequency-Modulation (PFM)

Zero-Voltage- Switching (ZVS)

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Abstract

In this paper, a new control scheme of Class-E inverter for reducing the crest factor of electronic ballasts for fluorescent lamps using Pulse-Frequency-Modulation (PFM) is introduced. The lifetime of the lamps is guaranteed by decreasing the lamp crest factor and also voltage stress of the switch is significantly decreased by a new scheme although conventional Class-E inverter is used in this paper. The proposed PFM control scheme didn’t use any auxiliary circuit. The proposed control strategy is executed by feeding back the input voltage, and the zero-voltage-switching (ZVS) is ensured by maintaining constant turn-off time of the switch. Therefore, the control principles of proposed method are explained in detail and its validity is verified through several simulations and experimental results.

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Cite this article

[IEEE Style]

H. Chon, D. Lee, D. Hyun, "A New Control Scheme of Class-E Electronic Ballast with Low Crest Factor," Journal of Power Electronics, vol. 3, no. 3, pp. 175-184, 2003. DOI: 10.6113/JPE.2003.3.3.175.

[ACM Style]

Hyun-Son Chon, Dong-Yun Lee, and Dong-Seok Hyun. 2003. A New Control Scheme of Class-E Electronic Ballast with Low Crest Factor. Journal of Power Electronics, 3, 3, (2003), 175-184. DOI: 10.6113/JPE.2003.3.3.175.