机载用电设备供电兼容设计与实现

Design and Implementation of Power Supply Compatibility for Airborne Electrical Equipment

为了解决机载用电设备与飞机供电系统之间的兼容性问题,研究了六种相应的设计方法。冲击电流抑制、双路供电防反流、输入短路保护和输入断电放电四种设计方法,用于减少用电设备对飞机供电系统的危害。过压瞬变尖峰电压抑制和供电转换两种设计方法,可以防止飞机供电系统对用电设备造成损坏。针对每种设计方法首先介绍了设计需求,然后进行了机理分析和电路实现,最后对电路中器件参数进行了设计,形成了一套具有普适性的供电兼容实现方案,该方案已成功应用于多个机载综合射频系统平台,顺利通过了系统供电兼容性试验。

In order to solve the problem of compatibility between airborne electrical equipment and aircraft power supply system,six corresponding design methods were studied.Four design methods of impulse current suppression,two-way power supply anti reverse current,input short circuit protection and input power-off and discharge were used to reduce the harm of electrical equipment to aircraft power supply system.Two design methods of peak voltage suppression and power supply conversion could prevent the aircraft power supply system from damaging the electrical equipment.For each design method,the design requirements were first introduced,then the mechanism analysis and circuit implementation were carried out,Finally,the device parameters in the circuit were designed,form a universal power supply compatibility scheme.The scheme has been successfully applied to multiple airborne integrated RF system platforms and successfully passed the power supply compatibility test of the system.