Abstract
This paper proposes a novel difference-integral controller (DIC) to improve the dimming performance of variable-frequency single-stage electronic ballast for cold cathode fluorescent lamp. The proposed DIC will linearize the dimming process by linear integral behavior. The half-bridge resonant inverter Is employed In the presented back-light system. This system also incorporates a voltage feed-forward control to eliminate unstable illumination and to provide excellent step response. Complete analysis and design considerations are discussed in detail in this paper. The measured results obtained from experiments are close to the theoretical prediction. The overall efficiency of the proposed system is promoted above 91%.
| Original language | English |
|---|---|
| Pages (from-to) | 1000-1005 |
| Number of pages | 6 |
| Journal | PESC Record - IEEE Annual Power Electronics Specialists Conference |
| Volume | 3 |
| Publication status | Published - 2003 |
| Externally published | Yes |
| Event | 2003 IEEE 34th Annual Power Electronics Specialists Conference - Acapulco, NM, United States Duration: 2003 Jun 15 → 2003 Jun 19 |
Keywords
- Back-lighting power supply
- Cold-cathode fluorescent lamp
- Current-fed push-pull parallel-resonant inverter
- Electronic ballast
- Half-bridge resonant inverter
- Voltage feed-forward control
ASJC Scopus subject areas
- Modelling and Simulation
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering