| Aluminum as necessities of daily life is produced each year particularly large, but power conversion efficiency is low because of the use of thyristor rectifier. That makes the process of electrolytic aluminum consume tremendous energy, which is not consistent with national energy-saving emission reduction policy.In order to overcome the shortcomings of the traditional electrolytic aluminum power and reduce the power loss, this paper is introduced the soft-switching technology into the electrolytic aluminum power supply, according to the development of power electronics technology in recent years. After reading a lot of the information at home and abroad, this paper selects phase-shift full-bridge zero-voltage soft-switching circuit as the main circuit topology of the design.First, this article analyzes the processes of the zero-voltage phase-shifted full-bridge according to the drive signal that the ISL6752 chip produces, discusses the conditions of the full-bridge converter to achieve zero-voltage and the reason of the secondary side duty cycle loss. To improve power conversion efficiency, the experimental brings into synchronous rectification technology. On based of the analysis of current drive, voltage self-driven, voltage external drive and voltage hybrid drive, the paper designes a novel synchronous rectifier drive method. It reduces the loss caused by current passing the body diode of the synchronous rectifier MOSFET. Then by a discussion of the half-wave rectifier, full-wave rectifier, and Double Rectifier, we know their advantages and disadvantages. According to the characteristics of this design, this paper selects the double-rectifier as the output rectifier structure.Finally, the paper is given the power of hardware parameter values and uses matlab/simulink software to simulate. The results verify the phase-shifted full-bridge controller with the synchronous rectifier can indeed greatly improve power conversion efficiency of electrolytic aluminum.
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