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基于推挽拓扑结构设计,研究了一种全电坦克炮控系统用升压电源,但推挽电路存在着难以消除的偏磁现象,使得升压电源的可靠性降低。详细阐述了推挽电路中偏磁现象产生的原因,针对性地提出了串入箝位电容、采用电流内环控制、优化电路布局等偏磁抑制方法。实验结果表明:所采用的推挽电路偏磁抑制方法具有结构简单、抑制效果好的优点,提高了全电坦克炮控系统升压电源的可靠性。
Based on the push-pull topology design, a booster power supply for an all-electric tank gun control system is studied. However, the push-pull circuit has a biased magnetic phenomenon that can not be eliminated and the reliability of the booster power supply is reduced. The cause of bias phenomenon in push-pull circuit is elaborated in detail, the clamp capacitor proposed in this paper is pointed out in detail, and the bias current control method is adopted to optimize the circuit layout. The experimental results show that the push-pull circuit bias suppression method has the advantages of simple structure and good suppression effect, and improves the reliability of the step-up power supply in an all-electric tank gun control system.