FIELD: transportation; electrical equipment.
SUBSTANCE: invention relates to regulatory and warning devices that are installed along the route of trains to control the LED emitter of a traffic light. Device contains current-setting resistors, a source of constant voltage and LED cells, each of which consists of a sequential and consistent inclusion of LEDs. Additionally, a logical inverter and a control relay are introduced, the first winding terminal of which is connected to the connection point of the positive pole of the DC voltage source with the anode terminals of the LED cells, the cathode outputs of each of them are connected to the negative pole of the constant voltage source through current-supplying resistors, and the second terminal of the control relay winding is connected to the output of the logic inverter, the inputs of which are connected to the connection points of each of the current-setting resistors with the corresponding cathodic output of each of the LED cells.
EFFECT: extension of the functionality of a constant-voltage LED emitter is achieved.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| LIGHT-EMITTING DIODE TRAFFIC LIGHT WITH COLD STATE CONTROL | 2015 |
|
RU2617023C2 |
| TRAFFIC LIGHT | 2014 |
|
RU2556045C1 |
