Title :
Single-switch electronic ballast with near-unity power factor and soft-switching characteristic
Author :
Lee, Yim-Shu ; Hu, Yue-Quan ; Siu, Kam-Wah
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech., Kowloon, China
fDate :
12/1/2001 12:00:00 AM
Abstract :
The design and analysis of a single-switch electronic ballast with near-unity power factor and soft-switching characteristic are presented. The ballast circuit is simple and has a small component count. The experimental results for an 80 W ballast show that it has a power factor higher than 0.99 and a total harmonic distortion of 12%. The operating frequency is between 20-40 kHz. The output power is adjustable and the circuit is reliable
Keywords :
DC-DC power convertors; fluorescent lamps; harmonic distortion; lamp accessories; power factor correction; switching circuits; 20 to 40 kHz; 80 W; adjustable output power; ballast circuit; fluorescent lamps; flyback converter; near-unity power factor; single-switch electronic ballast; soft-switching characteristic; total harmonic distortion; Active circuits; Electronic ballasts; Fluorescent lamps; Frequency; Passive circuits; Power generation; Reactive power; Switches; Total harmonic distortion; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
