Design and Implementation of a Single-Stage High-Frequency HID Lamp Electronic Ballast |
| |
Authors: | Huang-Jen Chiu Tzu-Herng Song Shih-Jen Cheng Chia-Hsing Li Yu-Kang Lo |
| |
Affiliation: | Nat. Taiwan Univ. of Sci. & Technol., Taipei; |
| |
Abstract: | We present a single-stage electronic ballast with a high power factor feature for driving high-intensity discharge (HID) lamps. A new frequency-modulation technique is proposed to eliminate the acoustic resonance problem in HID lamps under high-frequency operation. The proposed method has the merits of simple circuit and low cost; thus, it is suitable for use in commercial applications. The conducted emission caused by the high-frequency electronic ballast can be also effectively reduced. The operating principles and design considerations of the proposed electronic ballast are analyzed and discussed in detail. A 35-W laboratory prototype is designed and implemented. Simulation and experimental waveforms are given to verify the feasibility of the proposed method. The results are satisfactory. |
| |
Keywords: | |
|