RECEIVER OF SIGNAL FROM TRACK CIRCUIT Russian patent published in 2006 - IPC B61L23/16 

FIELD: railway transport; signaling and communication.

SUBSTANCE: invention relates to devices for interval traffic control at track block-sections and stations. Proposed receiver contains series-connected first band-pass filter, amplitude detector and second band-pass filter and amplifier to output of which track relay is connected. Input of first band-pass filter is receiver input. Receiver contains comparator unit, voltage sensor and reference signal shaper. Input of amplifier is connected with output of comparator unit whose first input is connected to output of second band-pass filter. Second input of comparator unit is connected to output of reference signal shaper whose input is connected with voltage sensor connected to output of generator supply source.

EFFECT: improved reliability of receiver of track circuit signal owing to reduction of influence level of fluctuations of generator output signal caused by instability of supply source.

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