IJMTES – RESONANT INVERTER WITH INBUILT BOOST CONVERTER FOR HIGH FREQUENCY APPLICATIONS

Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : M Gayathri | K Periyanayagi

Volume 02 Issue 12  Year 2015

ISSN no: 2348-3121

Page no: 105-109

Abstract This paper proposes a novel soft-switching Single phase ac–dc–ac converter to give high input power factor and low current distortion on the rectifier side and provide clean and stable ac voltage on the inverter side. Besides operating at constant frequency, all semiconductor devices operate at soft-switching without additional voltage stress. A significant reduction in the conduction losses is achieved, since the circulating current for the soft switching flows only through the auxiliary circuit and a minimum number of switching devices is involved in the circulating current path, and the rectifier in the Proposed converter uses a single converter instead of the conventional configuration composed of a four-diode front-end rectifier followed by a boost converter. An average-current-mode control is employed in the rectifier side of proposed converter to detect the transition time and synthesize a suitable low harmonics sinusoidal waveform for the input current. The sinusoidal pulse width modulation (SPWM) control strategy is employed in the inverter of proposed converter to achieve good dynamic regulation.

Keywords— Electronic ballast, Power Factor Correction (PFC)

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