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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Adams, J. Ribarich, T.J. Ribarich, J.J. |
| Copyright Year | 1999 |
| Description | Author affiliation: Int. Rectifier Power IC Group, El Segundo, CA, USA (Adams, J.) |
| Abstract | A new control technique has been developed for the high-frequency dimming of fluorescent lamps using phase-sensing of the ballast output stage current to regulate lamp power. This approach has been incorporated into an IC giving the following ballast design implications: dimming to 1%; ignition at any dim setting; multiple lamp management; no heating or current transformers required; No opamps required; immunity from lamp negative incremental impedance effects; reduction of PCB interconnects, IC pin count and components; minimum changes needed to adapt non-dimming ballast for dimming; and end-of-life detection (nondimming). The result is a high-performance lighting solution for dimmable ballasts and ballasts with end-of-life protection at a significant cost reduction. A complete linear dimmable ballast has been built that incorporates the new IR2159 IC verifying all of these features. The end-of-life feature can only be applied to a nondimming ballast (using the IR2158 IC) and details of this are covered. |
| Starting Page | 713 |
| Ending Page | 719 |
| File Size | 517921 |
| Page Count | 7 |
| File Format | |
| ISBN | 0780351606 |
| DOI | 10.1109/APEC.1999.750439 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-03-14 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Electronic ballasts Voltage Ignition Fluorescent lamps Frequency Transfer functions Protection Phase control Brightness Circuits |
| Content Type | Text |
| Resource Type | Article |
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