多输出电源隔离互锁电路研究  

Research on multi-output power supply isolation interlocking circuit

作　　者：赵闯 冯悦 王强 张倩倩 ZHAO Chuang;FENG Yue;WANG Qiang;ZHANG Qian-qian(Beijing space Craft,Beijing 100190,China)

机构地区：[1]北京卫星制造厂,北京100190

出　　处：《电子设计工程》2018年第12期116-120,共5页Electronic Design Engineering

摘　　要：航天器是一个由多种不同功能单元组成的庞大系统,所有单元都需要专用的供电电源。必须设计高可靠,能够满足负载需求的电源,才能保证航天器在设计寿命内可靠安全运行甚至可以延长航天器的使用寿命。星载电源不再由以前的单输出模块电源组合拼接而成,而是由一个电源模块实现多路电压输出和相应的遥控、遥测功能。对多路输出模块电源的输出电压之间提出了互锁要求。多路输出模块电源输出电压隔离互锁控制电路,巧妙的把光耦器件和控制电路结合起来,既能把关机信号传到被控制的输出电压上,同时也实现了输出之间的电气隔离。该电路保证了用电设备的安全性与可靠性。并且,输出电压互锁控制电路所用器件较少,实现简单,具有很好的经济效益。The spacecraft is a large system of many different functional units,all of which require a dedicated power supply.High reliability must be designed to meet the power demand of the load,in order to ensure the spacecraft within the design life of reliable and safe operation of the spacecraft may even prolong life.Onboard power supply is no longer spliced single output power from the previous combination,but by a power module to achieve multiple voltage output and the corresponding remote control,telemetry function.The interlock requirement is proposed for the voltage of the power supply of multi-channel output module in spaceborne electronic equipment. The output voltage isolation interlock control circuit of multi-output module power supply,clever combination of optocoupler and control circuit.Both to turn off the signal to the control of the output voltage,but also to achieve the electrical isolation between the output.This circuit ensures the safety and reliability of electrical equipment.Also,the output voltage interlock control circuit uses fewer devices,simple,with good economic benefits.

关 键 词：多输出电源 隔离互锁 控制电路 高可靠性 

分 类 号：TN99[电子电信—信号与信息处理]