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A new proposal of switched power oscillator applied as a self-oscillating auxiliary medium open loop power supply

A new proposal of switched power oscillator with reduced conduction losses, zero voltage and zero current turning on, and zero voltage turning off, is presented in this paper. The proposed topology consists of a boost EIE converter operating in continuous conduction mode (CCM) associated to a self-oscillating LC series resonant circuit. This new self-oscillating power oscillator can be applied as an inverter stage of electronic ballast for fluorescent lamps as well as medium open loop power supply. Circuit description and a simplified design guide line are presented. A power oscillator prototype applied as a self-oscillating auxiliary medium open loop power supply with an output power of 15.7 W has been built and analyzed by simulation and experimentally.