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Optimized Design of Power Semiconductor Devices for DC-AC Royer Converter Topology in Case of CCFL Lighting Applications
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| Author(s) |
Filippo Chimento, Salvatore Musumeci, Angelo Raciti, Salvatore Tomarchio, Rosario Scollo |
| Abstract |
The Cold Cathode Fluorescent Lamps are
particularly used in back lighting of LCD monitors. The
supplying circuits must have the characteristic of good
thermal management in order to avoid temperature rise
over 60°C, which can cause large dark spots in the screen.
In this paper an innovative solution is proposed that consists
on a Royer configuration of a current-fed push-pull inverter
supplied by a buck DC-DC converter. The main
characteristics of this configuration are Zero Voltage
Switching operations, which minimize both the power
consumption and the thermal dissipation, and the good
suitability for system integration, which allows to consider
package-targeted economic solutions. |
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| Filename: | T1-401.pdf |
| Filesize: | 553.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2007-03-08 by System |
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