阴极高压电源纹波是影响发射机频谱的关键因素,针对空投型雷达强冲击、低气压、安装空间受限的应用环境,提出了一种空投型雷达发射机阴极高压电源设计方法。采用软开关谐振技术减少功率开关管损耗,以串级式倍压电路输出高压,采取有效措施减小输出高压纹波,提高了系统可靠性,并对强冲击和低气压环境有较好的适应性。该阴极高压电源小型化效果好、功率密度大、对发射机工作比适应性宽,有利于提高发射机系统的功率容量、效率和频谱质量,为发射机高压电源的研制提供了新的思路,具有较好的应用前景。%The ripple of the cathode high voltage power supply is the key factor that influences the transmitter frequency spectrum.Aiming at the application environment of the airdrop type of radar,which includes the strong impact,the low atmospheric pressure and the limited installation environment,this paper proposes a design method of the cathode high voltage power supply for the airdrop type radar transmitter.It adopts the soft switching resonance technology to reduce the loss of the power switching tube,provides the output high voltage by the series cascade multiple voltage circuit,takes effective means to reduce the ripple of the output high voltage,and improves the reliability of the system.This method has good adaptability in the working environment that includes the strong impact and the low atmospheric pressure.This cathode high voltage power supply has good miniaturization effect,big power densities,and good adaptability to the transmitter＇s working ratio.It is propitious to the transmitter system,which improves its power capacity,working efficiency and quality of the transmitter frequency spectrum.It provides new ideas for the development of the transmitter high voltage power supply and has good application prospects.
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