Phase-sensitive track circuit receiver

The utility model discloses a phase-sensitive track circuit receiver which comprises a power source voltage stabilizing circuit, a signal input circuit, a single chip microcomputer circuit and a relay driving circuit. The single chip microcomputer circuit is connected with the signal input circuit and the relay driving circuit, and the power source voltage stabilizing circuit provides a working power source for the signal input circuit, the single chip microcomputer circuit and the relay driving circuit. The receiver is arranged in a relay dustproof cover, and used for comparing the amplitude and phase difference of a track signal and a local signal, a track relay is driven to perform sucking up and falling off, in the configuration, the receiver is designed to be in the double-machine hot standby mode, and the safety and reliability of the track circuit are ensured.