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针对某型相控阵雷达对阵面电源开关频率可控的要求,提出了一种带同步控制功能的高功率、高密度开关电源,该电源的开关频率可与雷达的PRF同步。介绍了该电源的电路组成,并着重对PS-ZVS-PWM全桥变换器和内部功率电路的并联方式及其均流问题进行了详细介绍,最后给出了主要技术参数和实验结果。实验结果表明,电路设计合理,能够满足相控阵雷达对高功率阵面电源频率可控的要求,提高机载雷达的性能。
In order to control the switching frequency of a certain type of phased array radar on the front face, a high power and high density switching power supply with synchronous control function is proposed. The switching frequency of the power supply can be synchronized with the PRF of the radar. The circuit constitution of the power supply is introduced, and the parallel connection between PS-ZVS-PWM full-bridge converter and internal power circuit and its current sharing are introduced in detail. Finally, the main technical parameters and experimental results are given. The experimental results show that the circuit design is reasonable and can meet the controllable requirements of phased array radar on the power frequency of high power front and improve the performance of airborne radar.