LED annunciator light-emitting disc lighting device with filament breaking simulation function

Abstract

The utility model provides an LED annunciator light-emitting disc lighting device with a filament breaking simulation function. The LED annunciator light-emitting disc lighting device comprises a power supply circuit, an energy absorption control circuit, a threshold circuit, a redundancy threshold circuit, a trigger protection circuit and an interface circuit. The power supply circuit, the energy absorption control circuit, the threshold circuit, the redundancy threshold circuit, the trigger protection circuit and the interface circuit are used for providing a working power supply; the energy absorption control circuit consumes electric energy in a non-working state, and is disconnected to stop working in a working state; the threshold circuit is connected with the redundant threshold circuit and the interface circuit, and the threshold circuit and the redundant threshold circuit form a redundant trigger circuit which is used for generating trigger voltage; the trigger protection circuit is connected with the redundancy threshold circuit and is used for adjusting the working current; and the interface circuit is connected with the LED signal light-emitting disc and is used for simulating a beam breaking function and lightening or extinguishing the LED according to the trigger voltage. According to the utility model, dismounting wiring is not needed, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED signal machine luminous disc light technology field especially relates to a kind of LED signal machine luminous disc light device with simulated broken filament function. BACKGROUND

[0002] Signal machine is one of important equipment of rail transit operation, and its state can determine whether train operation is safe or not. At present, the most used is LED signal machine, with good display effect, strong light interference resistance, long service life, energy saving and other characteristics. Signal machine is powered by indoor power supply screen, reaches signal machine light transformer through indoor control equipment and outdoor cable, and is lighted by light template after being stepped down by transformer, and LED luminous disc. Luminous disc has 12 LED filaments in each light position, and light template is connected to luminous disc through terminal, and each terminal is connected with 1 filament.

[0003] In order to monitor the working state of signal machine luminous disc filament, filament alarm is arranged in room. It judges the perfect condition of luminous disc filament by monitoring the current value change of signal machine light loop. When individual light emitting diode in 12 filaments of luminous disc fails, the current value of light loop decreases, and the current is lower than the lower limit value of alarm triggering of filament alarm, so that filament alarm sends alarm to remind maintenance personnel to check and maintain signal machine.

[0004] After signal machine is overhauled or outdoor signal machine electrical component is replaced, luminous disc filament broken filament alarm test and alarm upper and lower limit value setting must be carried out. In order to simulate filament broken filament, the connection between light template terminal and luminous disc filament needs to be disconnected. Generally, 3 filaments (3 / 12) are allowed to be disconnected without alarm, and 4 filaments (4 / 12) are disconnected to alarm.

[0005] The existing filament simulation method has the following shortcomings:

[0006] 1. Tool is needed and both hands are operated, which is difficult to operate in small space of signal machine mechanism.

[0007] 2. Terminal may be damaged under long-term or wrong operation, leading to poor connection and causing equipment failure.

[0008] 3. Disconnection and connection operation are complicated and time-consuming. UTILITY MODEL CONTENT

[0009] In order to overcome the above technical defects, the utility model provides a kind of LED signal machine luminous disc light device with simulated broken filament function, which is easy to operate.

[0010] In order to solve the above problems, the utility model is realized according to the following technical scheme:

[0011] The application discloses a LED signal light emitting disc lighting device with a simulated broken filament function, which comprises a power supply circuit, an energy absorption control circuit, a threshold circuit, a redundant threshold circuit, a trigger protection circuit and an interface circuit.

[0012] The power supply circuit is connected with the energy absorption control circuit, the threshold circuit, the redundant threshold circuit, the trigger protection circuit and the interface circuit, and is used for providing a working power supply.

[0013] The energy absorption control circuit consumes electric energy in a non-working state and is disconnected to stop working in a working state.

[0014] The threshold circuit is connected with the redundant threshold circuit and the interface circuit, and the threshold circuit and the redundant threshold circuit form a redundant trigger circuit and are used for generating a trigger voltage.

[0015] The trigger protection circuit is connected with the redundant threshold circuit and is used for adjusting a working current.

[0016] The interface circuit is connected with an LED signal light emitting disc and is used for simulating a broken filament function and lighting or extinguishing the LED according to the trigger voltage.

[0017] As a further improvement of the application, the energy absorption control circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a first triode, a first light emitting diode and a first polarity capacitor.

[0018] The positive pole of the power supply circuit is connected with the collector of the first triode through the first resistor, the positive pole of the power supply circuit is connected with the collector of the first triode through the second resistor, the positive pole of the power supply circuit is connected with the collector of the first triode through the third resistor and the first light emitting diode, the positive pole of the power supply circuit is connected with the base of the first triode through the first diode and the fourth resistor, the first diode is grounded through the first polarity capacitor, and the emitter of the first diode is grounded.

[0019] As a further improvement of the application, the threshold circuit comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a unidirectional thyristor, a second diode, a second polarity capacitor and a micro-adjusting potentiometer.

[0020] The power supply circuit is grounded through the fifth resistor, the micro-adjusting potentiometer and the sixth resistor, and the seventh resistor and the second polarity capacitor are both arranged in parallel with the sixth resistor.

[0021] The interface circuit is connected with the micro-adjustment potentiometer through the gate of the unidirectional thyristor, the anode of the unidirectional thyristor is grounded, and the gate of the unidirectional thyristor is connected with the redundant threshold circuit through the eighth resistor and the second diode.

[0022] As a further improvement of the utility model, the redundant threshold circuit comprises a first capacitor, a second capacitor, a ninth resistor, a tenth resistor, an eleventh resistor, a third triode, a second diode, a fourth diode, a second light-emitting diode, a fifth diode and a twelfth resistor.

[0023] The positive pole of the power supply circuit is connected with the ground through the ninth resistor and the eleventh resistor, and the first capacitor and the second capacitor are arranged in parallel with the ninth resistor.

[0024] The base of the second diode is connected with the positive pole of the power supply circuit through the tenth resistor and connected with the eleventh resistor through the third diode, the emitter of the third triode is connected with the positive pole of the power supply circuit, and the collector of the third triode is grounded through the fourth diode and a third polarity capacitor.

[0025] The fourth diode is connected with the trigger protection circuit and connected with the threshold circuit through the second light-emitting diode, the fifth diode and the twelfth resistor.

[0026] As a further improvement of the utility model, the trigger protection circuit comprises a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, an integrated chip, a third light-emitting diode, a sixth diode, a seventh diode, a third capacitor, a fourth capacitor, a fourth polarity capacitor, a fourth triode and a second triode.

[0027] The eighth pin of the integrated chip is connected with the redundant threshold circuit through the thirteenth resistor and the seventh diode, and the fourteenth resistor and the fifteenth resistor are arranged in parallel with the thirteenth resistor.

[0028] The fourth pin of the integrated chip is connected with the eighth pin, the second pin of the integrated chip is connected with the fourth pin through the third capacitor, connected with the ground through the sixteenth resistor and connected with the ground through the sixth diode.

[0029] The fifth pin and the first pin of the integrated chip are grounded, and the sixth pin of the integrated chip is connected with the second pin.

[0030] The collector of the fourth triode is connected with the eighth pin of the integrated chip through the third light-emitting diode and the seventeenth resistor, the base is connected with the third pin of the integrated chip through the eighteenth resistor, and the emitter is grounded.

[0031] The base of the second triode is connected with the third pin of the integrated chip through the nineteenth resistor, the emitter is grounded, and the collector is connected with the energy absorption control circuit.

[0032] As a further improvement of the utility model, the interface circuit comprises: a first self-resetting button, a second self-resetting button, a fourth light emitting diode, a fifth light emitting diode, a voltage reduction current limiting matrix, a twentieth resistor R20, a twenty-first resistor R21.

[0033] The voltage reduction current limiting matrix is connected with the power supply circuit, the first self-resetting button and the second self-resetting button.

[0034] The power supply circuit is grounded through the first self-resetting button, the twentieth resistor and the fourth light emitting diode.

[0035] The power supply circuit is grounded through the second self-resetting button, the twenty-first resistor and the fifth light emitting diode.

[0036] As a further improvement of the utility model, the voltage reduction current limiting matrix comprises: a plurality of resistance branches in parallel.

[0037] As a further improvement of the utility model, the resistance branch comprises a plurality of resistors in series.

[0038] As a further improvement of the utility model, the power supply circuit comprises: a bidirectional diode, a bridge rectifier and an insurance.

[0039] The output of the alternating current is connected with the AC end of the bridge rectifier, and the AC end of the bridge rectifier is sequentially connected with the bidirectional diode and the insurance.

[0040] The DC end of the bridge rectifier is used as a power supply output.

[0041] Compared with the prior art, the utility model has the following beneficial effects: the utility model sets threshold circuit, redundant threshold circuit, forms trigger circuit to generate trigger voltage, realizes the connection with the LED signal light emitting disc through the interface circuit, does not need to disassemble and assemble the wiring, and avoids the problems of poor wiring and damaged wiring terminal. BRIEF DESCRIPTION OF DRAWINGS

[0042] The specific embodiment of the utility model will be further explained in combination with the drawings, and the drawings are as follows:

[0043] Figure 1 It is the whole structure schematic diagram of the LED signal machine light emitting disc point lamp device of the utility model;

[0044] Figure 2This is a schematic diagram of the energy absorption control circuit described in this utility model;

[0045] Figure 3 This is a schematic diagram of the threshold circuit described in this utility model;

[0046] Figure 4 This is a schematic diagram of the redundant threshold circuit described in this utility model;

[0047] Figure 5 This is a schematic diagram of the trigger protection circuit described in this utility model;

[0048] Figure 6 This is a schematic diagram of the interface circuit described in this utility model;

[0049] Figure 7 This is a schematic diagram of the power supply circuit described in this utility model.

[0050] Explanation of reference numerals in the attached diagram: 1. Power supply circuit; 2. Energy absorption control circuit; 3. Threshold circuit; 4. Redundant threshold circuit; 5. Trigger protection circuit; 6. Interface circuit. Detailed Implementation

[0051] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0052] This utility model provides an LED signal light display device with simulated wire breakage function, such as... Figure 1 As shown, it includes: a power supply circuit 1, an energy absorption control circuit 2, a threshold circuit 3, a redundant threshold circuit 4, a trigger protection circuit 5, and an interface circuit; the power supply circuit 1, together with the energy absorption control circuit 2, the threshold circuit 3, the redundant threshold circuit 4, the trigger protection circuit 5, and the interface circuit, provides working power; the energy absorption control circuit 2 consumes electrical energy when not in operation and disconnects and stops working when in operation; the threshold circuit 3 is connected to the redundant threshold circuit 4 and the interface circuit, and the threshold circuit 3 and the redundant threshold circuit 4 constitute a redundant trigger circuit for generating a trigger voltage; the trigger protection circuit 5 is connected to the redundant threshold circuit 4 for regulating the working current; the interface circuit is connected to the LED signal light-emitting disk for simulating beam cutting function and for lighting up or turning off the LED according to the trigger voltage.

[0053] The function of threshold circuit 3 is to eliminate induced interference in the circuit and stop the LED signal light-emitting disk from lighting when it falls below a certain energy value to prevent false displays. The redundant threshold circuit 4 can ensure that the normal operation of the circuit is not affected when the components in threshold circuit 3 or redundant threshold circuit 4 are damaged or deteriorated, thereby increasing the reliability of the lighting device.

[0054] As Figure 2 shown, the energy absorption control circuit 2 includes: the first resistance R1, the second resistance R2, the third resistance R3, the fourth resistance R4, the first diode D1, the first triode Q1, the first light emitting diode LD1, the first polarity capacitor E1; the positive pole of the power supply circuit 1 is connected to the collector of the first triode Q1 through the first resistance R1, the positive pole of the power supply circuit 1 is connected to the collector of the first triode Q1 through the second resistance R2, the positive pole of the power supply circuit 1 is connected to the collector of the first triode Q1 through the third resistance R3 and the first light emitting diode LD1, the positive pole of the power supply circuit 1 is connected to the base of the first triode Q1 through the first diode Q1 and the fourth resistance R4, the first diode Q1 is grounded through the first polarity capacitor E1, and the emitter of the first diode Q1 is grounded.

[0055] The energy absorption control circuit 2 utilizes the characteristics of the inductive electric band load difference, adopts the first resistance R1, the second resistance R2 and the first triode Q1 to form an energy absorption circuit, when the whole device is not working, the inductive electric energy in the loop is consumed by the first resistance R1 and the second resistance R2, when the whole device is working, the first triode Q1 is controlled by the trigger protection circuit 5, the working of the first resistance R1 and the second resistance R2 is turned off, the power consumption is reduced, and the service life of the circuit is prolonged.

[0056] As Figure 3 shown, the threshold circuit 3 includes: the fifth resistance R5, the sixth resistance R6, the seventh resistance R7, the eighth resistance R8, the unidirectional thyristor D2, the unidirectional thyristor Q5, the second polarity capacitor E2, the trimming potentiometer KR1; the power supply circuit 1 is grounded through the fifth resistance R5, the trimming potentiometer KR1 and the sixth resistance R6, the seventh resistance R7 and the second polarity capacitor E2 are both arranged in parallel with the sixth resistance R6; the anode of the interface circuit is connected to the cathode of the unidirectional thyristor Q5, the cathode of the unidirectional thyristor Q5 is grounded, the gate of the unidirectional thyristor Q5 is connected to the trimming potentiometer KR1 through the eighth resistance R8 and the second diode Q2, and the gate of the unidirectional thyristor Q5 is connected to the redundant threshold circuit 4, wherein the unidirectional thyristor D2 is a voltage stabilizing tube.

[0057] In the threshold circuit 3, the voltage division ratio is adjusted through the trimming potentiometer KR1, the voltage is reduced by the voltage stabilizing tube D2, the appropriate trigger voltage is generated by combining the eighth resistance R8, the switching control of the unidirectional thyristor Q5 is realized by the trigger characteristics of the unidirectional thyristor Q5, and finally the lamp is extinguished when the voltage is lower than a certain voltage threshold and the lamp is lighted when the voltage is higher than the voltage threshold.

[0058] As Figure 4As shown, the redundant threshold circuit 4 includes: a first capacitor C1, a second capacitor C2, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a third transistor Q3, a third diode D3, a fourth diode D4, a second light-emitting diode LD2, a fifth diode D5, and a twelfth resistor R12; the positive terminal of the power supply circuit 1 is grounded through the ninth resistor R9 and the eleventh resistor R11; the first capacitor C1 and the second capacitor C2 are both connected in parallel with the ninth resistor R9; the base of the third transistor D3 is connected to the positive terminal of the power supply circuit 1 through the tenth resistor R10 and to the eleventh resistor R11 through the third transistor D3; the emitter of the third transistor D3 is connected to the positive terminal of the power supply circuit 1; the collector of the third transistor D3 is grounded through the fourth diode D4 and the third polarized capacitor E3; the fourth diode D4 is connected to the trigger protection circuit 5 and to the threshold circuit 3 through the second light-emitting diode LD2, the fifth diode D5, and the twelfth resistor R12; the fourth diode D4 is a Zener diode.

[0059] The redundant threshold circuit 4 uses the ninth resistor R9, the eleventh resistor R11 and the third diode D3 to realize the switching function of the transistor Q4. The fourth diode D4 is used to reduce the voltage. Combined with the twelfth resistor R12, a certain trigger voltage is generated to trigger the transistor Q5. The double threshold circuit 3 formed by this voltage is combined with the single threshold circuit 3 to form a redundant trigger circuit.

[0060] like Figure 5 As shown, the trigger protection circuit 5 includes: a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, an integrated chip U1, a third light-emitting diode LD3, a sixth diode D6, a seventh diode D7, a third capacitor C3, a fourth capacitor C4, a fourth polarized capacitor E4, a fourth transistor Q4, and a second transistor Q2; the eighth pin of the integrated chip U1 is connected to the redundant threshold circuit 4 through the thirteenth resistor R13 and the seventh diode D7; the fourteenth resistor R14 and the fifteenth resistor R15 are both connected in parallel with the thirteenth resistor R13; the fourth pin and the eighth pin of the integrated chip U1... The integrated chip U1 is connected as follows: the second pin is connected to the fourth pin through the third capacitor C3, grounded through the sixteenth resistor R16, and grounded through the sixth diode D6; the fifth and first pins of the integrated chip U1 are grounded, and the sixth pin of the integrated chip U1 is connected to the second pin; the collector of the fourth transistor Q4 is connected to the eighth pin of the integrated chip U1 through the third light-emitting diode LD3 and the seventeenth resistor R17, the base is connected to the third pin of the integrated chip U1 through the eighteenth resistor R18, and the emitter is grounded; the base of the second transistor Q2 is connected to the third pin of the integrated chip U1 through the nineteenth resistor R19, the emitter is grounded, the collector is connected to the energy absorption control circuit 22, and the seventh diode D7 is a Zener diode.

[0061] In the trigger protection circuit 5, the seventh diode D7 and the thirteenth resistor R13, the fourteenth resistor R14, the fifteenth resistor R15 constitute a stable power supply structure to supply power to the integrated chip U1. At the moment of power-on of the circuit, the third capacitor C3, the fourth capacitor C4 and the sixteenth R16 form the charging and discharging function, so that the integrated chip U1 detects the level change of the second pin, realizes the level change of the third pin of the integrated chip U1 through the internal work of the integrated chip U1, reduces the current value in the whole circuit, reduces the power consumption, protects the service life of the circuit, and preferably the integrated chip U1 can be realized by 555 chip.

[0062] As shown in Figure 6 , the interface circuit comprises: a first self-resetting button S1, a second self-resetting button S2, a fourth light emitting diode LD4, a fifth light emitting diode LD5, a voltage reduction current limiting matrix, a twentieth resistor R20, a twenty-first resistor R21; the voltage reduction current limiting matrix is connected with the power supply circuit 1, the first self-resetting button S1 and the second self-resetting button S2; the power supply circuit 1 is grounded through the first self-resetting button S1, the twentieth resistor R20 and the fourth light emitting diode LD4; the power supply circuit 1 is grounded through the second self-resetting button S2, the twenty-first resistor R21 and the fifth light emitting diode LD5, and the first self-resetting button S1 and the second self-resetting button S2 are micro-break button switches.

[0063] Specifically, the voltage reduction current limiting matrix comprises: a plurality of phase-parallel resistor branches. The resistor branch comprises a plurality of phase-series resistors.

[0064] The second twenty-second resistor R22 to the forty-second resistor R42 are used to form the voltage reduction current limiting matrix circuit, so that the power consumption is evenly dispersed, and the service life is prolonged. The first self-resetting button S1 and the second self-resetting button S2 are used to realize the function of simulating the breakage of the filament. When the filament of the light emitting disc 3 is simulated to be broken, the first self-resetting button S1 is pressed to disconnect the filament of the light emitting disc 3, and the first self-resetting button S1 is released to reset the button and connect the disconnected filament of the light emitting disc 3. The first self-resetting button S2 is pressed to disconnect the filament of the light emitting disc 4, and the first self-resetting button S2 is released to reset the button and connect the disconnected filament of the light emitting disc 4. The single-handed operation can be realized, the maintenance problem in the narrow space is solved, and the operation is simple. The fourth light emitting diode LD4 and the fifth light emitting diode LD5 can effectively improve the maintenance efficiency of the maintenance personnel and save time.

[0065] As shown in Figure 7 , the power supply circuit 1 comprises: a bidirectional diode D8, a bridge rectifier BD1 and a fuse FU. The output of the alternating current is connected to the AC end of the bridge rectifier BD1, the AC end of the bridge rectifier BD1 is sequentially connected to the bidirectional diode D8 and the fuse FU, and the DC end of the bridge rectifier BD1 is used as a power supply output.

[0066] The power supply circuit 1 passes the alternating current from the transformer into the AC end of the bridge rectifier BD1 through the interface (J1), and the alternating current is rectified into direct current through the rectifier.

[0067] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A LED signal light emitting disc lighting device with a simulated broken filament function, characterized in that, The application relates to a power supply circuit, an energy absorption control circuit, a threshold circuit, a redundant threshold circuit, a trigger protection circuit and an interface circuit. The power supply circuit is connected with the energy absorption control circuit, the threshold circuit, the redundant threshold circuit, the trigger protection circuit and the interface circuit, and is used for providing working power supply. The energy absorption control circuit consumes electric energy in a non-working state and stops working by being disconnected in a working state. The threshold circuit is connected with the redundant threshold circuit and the interface circuit, and the threshold circuit and the redundant threshold circuit form a redundant trigger circuit and are used for generating a trigger voltage. The trigger protection circuit is connected with the redundant threshold circuit and is used for adjusting working current. The interface circuit is connected with an LED signal light-emitting disc and is used for performing analog beam breaking and lighting or extinguishing the LED according to the trigger voltage. The energy absorption control circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a first triode, a first light-emitting diode and a first polarity capacitor.

2. The LED signal light panel point lighting device according to claim 1, characterized in that, The positive pole of the power supply circuit is connected with the collector of the first triode through the first resistor, the second resistor, the third resistor and the first light-emitting diode, and the base of the first triode is connected with the positive pole of the power supply circuit through the first diode and the fourth resistor. The threshold circuit comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a unidirectional thyristor, a second diode, a second polarity capacitor and a micro-adjusting potentiometer.

3. The LED signal light panel point lighting device according to claim 1, characterized in that, The power supply circuit is grounded through the fifth resistor, the micro-adjusting potentiometer and the sixth resistor, and the seventh resistor and the second polarity capacitor are arranged in parallel with the sixth resistor. The anode of the unidirectional thyristor is connected with the interface circuit, the cathode of the unidirectional thyristor is grounded, the gate of the unidirectional thyristor is connected with the micro-adjusting potentiometer through the eighth resistor and the second diode, and the gate of the unidirectional thyristor is connected with the redundant threshold circuit. The redundant threshold circuit comprises a first capacitor, a second capacitor, a ninth resistor, a tenth resistor, an eleventh resistor, a third triode, a second diode, a fourth diode, a second light-emitting diode, a fifth diode and a twelfth resistor.

4. The LED signal light panel point lighting device according to claim 3, characterized in that, The positive pole of the power supply circuit is grounded through the ninth resistor and the eleventh resistor, and the first capacitor and the second capacitor are arranged in parallel with the ninth resistor. The base of the second diode is connected with the positive pole of the power supply circuit through the tenth resistor and is connected with the eleventh resistor through the third diode, the emitter of the third triode is connected with the positive pole of the power supply circuit, and the collector of the third triode is grounded through the fourth diode and a third polarity capacitor. The fourth diode is connected with the trigger protection circuit and the threshold circuit through the second light-emitting diode, the fifth diode and the twelfth resistor. ​ 5. The LED signal lamp light emitting disc lighting apparatus according to claim 1, characterized in that, The trigger protection circuit comprises a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, an integrated chip, a third light emitting diode, a sixth diode, a seventh diode, a third capacitor, a fourth capacitor, a fourth polarity capacitor, a fourth triode, a second triode; An eighth pin of the integrated chip is connected to the redundancy threshold circuit through the thirteenth resistor and the seventh diode, and the fourteenth resistor and the fifteenth resistor are arranged in parallel with the thirteenth resistor; A fourth pin of the integrated chip is connected with the eighth pin, and a second pin of the integrated chip is connected with the fourth pin through the third capacitor, grounded through the sixteenth resistor, and grounded through the sixth diode; A fifth pin and a first pin of the integrated chip are grounded, and a sixth pin of the integrated chip is connected with the second pin; A collector of the fourth triode is connected to the eighth pin of the integrated chip through the third light emitting diode and the seventeenth resistor, a base is connected to a third pin of the integrated chip through the eighteenth resistor, and an emitter is grounded; A base of the second triode is connected to the third pin of the integrated chip through the nineteenth resistor, an emitter is grounded, and a collector is connected to the energy absorption control circuit.

6. The LED signal lamp light emitting disc lighting apparatus according to claim 1, characterized in that, The interface circuit comprises a first self-reset button, a second self-reset button, a fourth light emitting diode, a fifth light emitting diode, a voltage reduction current limiting matrix, a twentieth resistor R20, and a twenty-first resistor R21. The voltage reduction current limiting matrix is connected with the power supply circuit, the first self-reset button, and the second self-reset button. The power supply circuit is grounded through the first self-reset button, the twentieth resistor, and the fourth light emitting diode. The power supply circuit is grounded through the second self-reset button, the twenty-first resistor, and the fifth light emitting diode.

7. The LED signal light panel point lighting device according to claim 6, characterized in that, The voltage reduction current limiting matrix comprises a plurality of resistance branches in parallel.

8. The LED signal light panel point lighting device according to claim 7, characterized in that, The resistance branch comprises a plurality of resistors in series.

9. The LED signal lamp light-emitting disc lighting device according to claim 2, characterized in that, The power supply circuit comprises a bidirectional diode, a bridge rectifier, and an insurance; An AC end of the bridge rectifier is connected with an output of AC power in sequence with the bidirectional diode and the insurance; A DC end of the bridge rectifier is used as a power output.

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