BACKED-UP LED TRAFFIC LIGHT Russian patent published in 2018 - IPC B61L23/00 G08G1/95 

FIELD: control devices; electrical engineering.

SUBSTANCE: invention relates to regulating, warning devices. Essence of the invention lies in the fact that N relay-LED cells are included in its composition, each of which consists of an additional input winding of the monitoring relay, the first output of which is connected to the input of the relay-LED cell and through the additional input rear contact of the control relay is connected to the anode of the backup LED, and the second terminal of the control relay coil is connected to the anode of the main LED, the cathode of which is connected to the cathode of the backup LED and to the output of the relay-LED cell, in addition to the main LED, an additional capacitor is connected, the input of the first relay-LED cell through the front contact of the signal relay is connected to the positive pole of the current source, the negative pole of which is connected to the output of the N relay-LED cell, and the output of each of the relay-LED cells is connected to the input of the next relay-LED cell.

EFFECT: provides increased reliability of the redundant traffic light when changing the parameters of current-voltage characteristics of semiconductor devices included in its composition.

1 cl, 1 dwg