| Summary: | 碩士 === 國立交通大學 === 電機與控制工程系所 === 92 === Electronic ballast controller is the main part in electronic ballast. The aim of this thesis is to design an electronic ballast controller. Electronic ballast controller usually contains two control ICs：a power factor correction (PFC) control IC、a half bridge driver and ballast control IC. This Thesis presents a design method to integrated three control circuits into one, and uses circuit simulation program to test the proposed controller and ballast circuit. Ballast component parameter design equation is also proposed; therefore the operating frequency and dead time of ballast can be programmed to apply to fluorescent lamps with different specifications. The simulation of whole system shows two things. First, the PFC can boost lower THD and get high PF. Second, ballast can start up fluorescent lamps by programmed-frequency method, and protect lamps by fault detection.
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