Active and passive outlet switchable circuit

The utility model discloses an active and passive outlet switchable circuit which comprises a DC/DC power supply output end VC, a protection and signal conditioning circuit, an active/passive output port, an isolation circuit, an outlet control circuit and a mutual exclusion circuit. The DC/DC power supply output end VC, the protection and signal conditioning circuit, the active/passive output port, the isolation circuit, the outlet control circuit and the mutual exclusion circuit are connected in sequence, and the mutual exclusion circuit is connected with the protection and signal conditioning circuit. It is guaranteed that only one mode can be put into use at any moment, the correctness of the control mode is guaranteed, and meanwhile signal interference is prevented. 本实用新型公开了一种有源无源出口可切换电路，包括DC/DC电源输出端VC、防护及信号调理电路、有源/无源输出端口、隔离电路、出口控制电路和互斥电路；DC/DC电源输出端VC、防护及信号调理电路、有源/无源输出端口、隔离电路、出口控制电路和互斥电路依次顺序连接，互斥电路和防护及信号调理电路相连接，本申请扩大现场有源电压的应用方式，能够随时的自由切换有源无源出口电路信号通路，保证了任一时刻只有一种方式能投入使用，保证了控制方式正确性，同时防止信号干扰。