一种防差错射频继电器控制电路设计  

A Design of Error Proofing RF Relay Logic Control Circuit

作　　者：贺泽军 He Ze-jun(The 10th Research Institute of China Electronics Technology Group Corporation,Sichuan Chengdu 610036)

机构地区：[1]中国电子科技集团第十研究所

出　　处：《电子质量》2019年第9期101-103,共3页Electronics Quality

摘　　要：在大功率多通道通信发射链路中,链路中通道选择通常采用大功率射频继电器开关实现。然而当射频继电器的控制信号混乱时,会造成设备内部射频继电器工作不正常,在射频继电器端口处产生较大驻波,造成射频继电器烧毁或反射回前级链路导致电路烧毁。为了解决此问题,该文设计了一种防差错的射频继电器控制电路,当控制使能信号混乱,出现多个有效使能信号时,防差错逻辑控制电路能有效避免控制信号紊乱,确保输入给继电器的控制信号在同一时刻只有一个控制信号有效,保证了射频继电器和链路中器件不烧毁。RF relays are widely used as channel selecting components in transmission of high power multichannel communications.However,when the control signals of the RF reley are disorderd,it may cause the the RF relay out of order.The generated standing waves at the port may burn the RF reley and the front-end circuits due to wave reflection.In order to solve the issue,an error proofing logic control circuit was desgined to ensure the correction of the control signals.Only one of the control signals is effective at one time,making sure that the RF relay and the other components in the link will not be bured.

关 键 词：射频继电器 防差错 逻辑控制电路 

分 类 号：TM58[电气工程—电器]