Self Oscillating Dimmable Electronic Ballast

Azlan Kamil , Mohammad Fauzy (2006) Self Oscillating Dimmable Electronic Ballast. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The lighting system provides many opportunities for cost-effective energy saving without any sacrifice. The system is now part of the Energy Conservation program over the world and reduction of energy consumption by implementing energy conservation schemes is needed. Incandescent lamps convert just five per cent of energy into light and the remainder into heat where as fluorescent lamps turn 25 per cent of energy into light. As the rapid development of power electronics technology, inverters are now used for energizing the lamp. These inverter systems are now referred as the electronic ballast and can eliminate the conventional magnetic ballast's disadvantages. A simple explanation for the system is the main input is rectified to a DC voltage which is then invened into a high frequency AC voltage to drive the fluorescent lamp. Electronic ballasts can also be provided with a dimming capability. Dimming controls have been broadly employed in recent lighting systems to provide energy savings and improved economtc. The self oscillating dimmable electronic ballast that will construct in this project is hope will be useful not only in energy saving but also low cost and high reliability.

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