A novel high efficient approach to input bridges
نویسنده
چکیده
Almost all equipments used in our daily life are supplied from the power line. They are all around us, we use several of them every day: TV sets, DVDs, chargers, computers, refrigerators, washing machines, dishwashers etc... All these equipments have one or more input diode-bridges to convert the 50-60Hz (400Hz in aircrafts) sinusoidal waveform, at different AC voltage depending on the country, to a rectified DC bus that is then stepped down to a lower voltage to feed the electronics or directly used to supply the inverter for motors. This paper presents an innovative approach to implement the input bridge, using a self-driven synchronous rectification technique that allows the realization of a simple device with only four pins, as a direct high-efficient replacement of exiting standard input rectification devices.
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