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Analysis of Self-Oscillated Ballast by the Characteristics of Various type Types

This paper has been studied the electronic ballast by the self-oscillated inverter. The self-oscillated ballast can reduce the stress of the switch of the inverter. But the self-oscillating method is not easy to analyze and design. There arc three kinds of cores for the oscillating transformer： Ring core, EI-core, and Drum core. In this paper, we are studied the characteristics of three kinds of cores in using electronic ballast by the self-oscillated inverter.