Abstract
In this paper, a modified soft-switching bridgeless buck converter is introduced. In the proposed converter input current dead angle is eliminated by applying a simple auxiliary circuit. Also, by operating under DCM and DCVM condition, high efficiency and low THD is achieved for a wide range of load variation. The proposed converter is analyzed and design considerations are discussed. A prototype converter is implemented. The efficiency of 93.7% and THD of 4.3% are achieved using low-cost IGBT switches and diodes for 24 V output voltage. The proposed converter is controlled by a simple PWM controller.
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Schedule a callMore From: IEEE transactions on industrial electronics (1982)
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