Development Of Dimmable Electronic Ballast For Fluorescent Lamp

Ng , Eng Beng (2009) Development Of Dimmable Electronic Ballast For Fluorescent Lamp. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The project titled as "Development of Dimmable Electronic Ballast for Fluorescent Lamp". Nowadays electronic lamp ballast is widely spread over the world because of its high efficiency electronic control over the fluorescent lamp and make it the best choice to save the energy absorbed by the lighting system. To develop an electronic ballast with the expectation dimmable feature, it can be achieved by applying the fixed frequency oscillation while to vary voltage duty cycle. Based on the dimming control requirement from the title, I had design the circuit by implement IC SG 3526 function as oscillator that the voltage duty cycle can varying in order to drive the circuit in dimming control. In fact the high frequency electronic ballast is an AC/ AC power converter. It converts line frequency power from the utility to a high frequency AC power in order to drive the lamp. Regarding to this the circuit design for the electronic ballast include a AC/DC rectifier, DC/ AC half-bridge inverter, optocouplers, DC power supply and oscillator.

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