Open-circuit fault tolerant bridgeless boost rectifier

Publication Type:
Conference Proceeding
IECON Proceedings (Industrial Electronics Conference), 2016, pp. 2201 - 2206
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© 2016 IEEE. In this paper, a bridgeless boost rectifier with open circuit fault tolerant capability is proposed. The proposed converter is based on a H-bridge rectifier configuration. It possesses a redundancy feature such that only two out of four switches require to be functional to ensure the continuity of the converter operation with power factor correction (PFC). A detailed analysis of the converter operation under all open circuit faults of the switches are presented. In order to achieve smooth input current waveform, a PWM controller is proposed and developed which combines a conventional average current mode PFC controller with several logic gates and a phase detector. An experimental prototype is developed and tested to verify the converter performance.
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