25Hz相敏轨道电路自适应稳压装置设计

Self-adaptive Voltage Stabilizing Device Design of 25 Hz Phase Detecting Track Circuit

针对站内道床泄漏对25Hz相敏轨道电路影响的问题,设计自适应稳压电路,其包括整流滤波电路、智能电压比较电路和执行电路3个模块。该电路在消除“红光带”故障的同时,避免分路不良。现场测试证明该电路的有效性。

In order to solve the problem of 25 Hz phase detecting track circuit because of the ballast pollution,the paper presents a adaptive voltage stabilizing circuit.It consist of rectifi er fi lter circuit,intelligent voltage comparison circuit and executive circuit.The adaptive voltage stabilizing circuit can eliminate fault of red light strip,and get good result of shunting.The fi eld test shows the eff ectives of the circuit.