Abstract
A novel two-stage, high-power-factor electronic ballast used to drive high-intensity discharge lamps is proposed in the paper. The ballast consists of a flyback-type input current shaper to achieve power factor correction and a half-bridge-type inverter to supply the lamp with low-frequency square-wave current. Owing to its low-frequency operation, no acoustic resonance occurs. The features of the ballast are cost-effective, low total-harmonic-distortion (THD), high power factor (PF>0.99). Operational principles, design equations and simulated results of one 70-W HID lamp operating at 400 Hz switching frequency with 110V-rms line input voltage are presented.
| Original language | English |
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| Pages | 2607-2612 |
| Number of pages | 6 |
| Publication status | Published - 2003 |
| Event | The 29th Annual Conference of the IEEE Industrial Electronics Society - Roanoke, VA, United States Duration: 2003 Nov 2 → 2003 Nov 6 |
Other
| Other | The 29th Annual Conference of the IEEE Industrial Electronics Society |
|---|---|
| Country/Territory | United States |
| City | Roanoke, VA |
| Period | 03-11-02 → 03-11-06 |
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering