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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Haw-Yun Shin Jui-Piao Yang |
| Copyright Year | 2007 |
| Description | Author affiliation: Ming Chuan Univ., Taipei (Haw-Yun Shin) |
| Abstract | This study designs and develops a digital control integrated circuit (IC) for driving circuits operating multiple cold cathode fluorescent lamps (CCFLs). Inside the IC, two control loops are designed, under synchronized operation frequencies, for a boost regulator and an inverter. The main function of the boost regulator control loop is to supply a steady DC voltage for the inverter. In designing the inverter's control circuit, an adjustable-frequency adjustable-voltage soft start technique is used to start the lamps. The feedback voltage from the CCFLs can determine if any lamp is abnormal via a proposed lamp abnormality detection circuit. To deal with the equivalent-circuit's component parameter differences among various manufacturers' and brands' piezoelectric transformers (PTs). the inverter's operation frequency is designed with fine-tunable function in this study. Finally, the proposed design concept was implemented with an actual control IC and a driving circuit for CCFLs. |
| Starting Page | 268 |
| Ending Page | 268 |
| File Size | 2778005 |
| Page Count | 1 |
| File Format | |
| ISBN | 0769528821 |
| DOI | 10.1109/ICICIC.2007.244 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-09-05 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Digital control Regulators Feedback circuits Digital integrated circuits Inverters Manufacturing Fluorescent lamps Frequency synchronization Voltage control Cathodes |
| Content Type | Text |
| Resource Type | Article |
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