CN102843837A

CN102843837A - Automatic-control night illuminating lamp

Info

Publication number: CN102843837A
Application number: CN2012103195657A
Authority: CN
Inventors: 周芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-02
Filing date: 2012-09-02
Publication date: 2012-12-26

Abstract

The invention discloses an automatic-control night illuminating lamp which comprises a 220V alternating current, a half-wave rectifying and 12V-voltage stabilizing circuit, a photosensitive sampling and two-way controllable-silicon triggering circuit, a two-way controllable-silicon controlling circuit and an lighting circuit. The automatic-control night illuminating lamp is characterized in that the three-end adjustable shunting reference voltage source ICI in the photosensitive sampling and two-way controllable-silicon triggering circuit is of the TL431 type. The automatic-control night illuminating lamp is formed by improving the control mode of the sound-control street lamp and replacing the sound-control mode by the light-control mode, thus the automatic-control night illuminating lamp can directly replace the common power supply switch and can be installed without damaging or changing the original illuminating circuit wiring mode. The actual use proves that the automatic-control night illuminating lamp has a good effect. The automatic-control night illuminating lamp has the characteristics of simple circuit structure and reliable work performance and can be used in the corridors, parks, gardens, parking lots and other places.

Description

Automatically the night lighting lamp of controlling

Technical field

The invention belongs to electronics and lighting technology application, relate to a kind of night lighting lamp of automatic control.

Background technology

The corridor of a lot of public places or live building various delay illuminating lamps all have been installed.As: the acoustic control delay switch uses really easily, can reach the purpose of energy savings.But also things turn out contrary to one's wishes sometimes; The circuit of these audio-switches is very sensitive, has the sound to move on every side slightly, such as: the sound that the neighbour's opens the door, closes the door; Near the sound of setting off firecrackers even the automobile sound etc. of blowing a whistle downstairs; The capital makes the acoustic control street lamp light, not only can not economize on electricity, and also can have influence on the useful life of incandescent lamp bulb because of frequent bright lamp.Especially when you go home the late into the night, rely on sound to light this acoustic control street lamp, just must the people for producing the sound, hinder neighbours' at night rest.

For overcoming the defective that acoustic control formula street lamp exists; The night lighting lamp of automatic control of the present invention is that the control mode of acoustic control street lamp is improved; Replace the acoustic control mode with light prosecutor formula; It can directly replace common power switch, needn't destroy or change the wiring of original lighting circuit during installation, and is fine through practical effect.Automatically the night lighting lamp of control has characteristics such as circuit structure is simple, reliable working performance, can be used for the illuminating lamp control in places such as corridor, park are visited a park, parking lot.

The night lighting lamp that below specifies automatic control of the present invention related relevant technologies content in implementation process.

Summary of the invention

Goal of the invention and beneficial effect: the night lighting lamp of automatic control of the present invention is that the control mode of acoustic control street lamp is improved; Replace the acoustic control mode with light prosecutor formula; It can directly replace common power switch; Needn't destroy or change original lighting circuit wiring during installation, fine through practical effect.Automatically the night lighting lamp of control has characteristics such as circuit structure is simple, reliable working performance, can be used for the illuminating lamp control in places such as corridor, park are visited a park, parking lot.

The circuit working principle: automatically the night lighting circuit for lamp of control adopts the triggering element of the adjustable shunting reference voltage source of three ends IC1 (TL431) as bidirectional triode thyristor SCR, directly drives bidirectional triode thyristor SCR by the negative electrode of the adjustable shunting reference voltage source of three ends IC1; Voltage stabilizing obtains the 12V direct voltage to the 220V alternating current through step-down rectifier; When have illumination daytime; The two ends resistance of phototriode BG1 is very little, and the negative electrode of three ends are adjustable shunting reference voltage source IC1 is in electronegative potential and can not triggers bidirectional triode thyristor SCR and makes its conducting, and illuminating lamp HL does not work; When night unglazed according to the time; It is big that the resistance of phototriode BG1 becomes; Make the anode potential of the adjustable shunting reference voltage source of three ends IC1 rise to 2.5V when above, the negative electrode output high potential of three ends are adjustable shunting reference voltage source IC1 triggers bidirectional triode thyristor SCR conducting, and illuminating lamp HL is lighted automatically.

Technical characterictic: the night lighting lamp of controlling automatically, it comprises 220V alternating current, halfwave rectifier and 12V voltage stabilizing circuit, photosensitive sampling and bidirectional triode thyristor circuits for triggering, control circuit of bidirectional thyristor and lighting circuit, its characteristic comprises:

Photosensitive sampling and bidirectional triode thyristor circuits for triggering: form by phototriode BG1, potentiometer RP, silicon rectifier diode D2～D3 and the adjustable shunting reference voltage source of three ends IC1; IC1 is the adjustable shunting reference voltage sources of three ends; The model of selecting for use is TL431; The collector electrode connection circuit negative pole VCC of phototriode BG1; The emitter of phototriode BG1 connects the reference utmost point of the adjustable shunting reference voltage source of three ends IC1 and the end of potentiometer RP; The other end of potentiometer RP and lever arm connection circuit ground GND thereof, the negative pole connection circuit negative pole VCC of silicon rectifier diode D2～D3 series connection back silicon rectifier diode D2, the positive pole of silicon rectifier diode D3 connects the anode of the adjustable shunting reference voltage source of three ends IC1;

Control circuit of bidirectional thyristor and lighting circuit: form by bidirectional triode thyristor SCR, resistance R 2 and illuminating lamp HL; The negative electrode of the adjustable shunting reference voltage source of one termination, the three ends IC1 of resistance R 2; The control utmost point G of another termination bidirectional triode thyristor SCR of resistance R 2; The first anode T1 of bidirectional triode thyristor SCR meets the live wire end L of 220V alternating current, the second plate T2 connection circuit ground GND of bidirectional triode thyristor SCR through illuminating lamp HL;

Halfwave rectifier and 12V voltage stabilizing circuit: form by decompression capacitor C1, bleeder resistance R1, voltage stabilizing didoe DW, silicon rectifier diode D1 and electrochemical capacitor C2; The live wire end L of the termination 220V alternating current of the end of decompression capacitor C1 and bleeder resistance R1; The negative pole of another termination silicon rectifier diode D1 of the other end of decompression capacitor C1 and bleeder resistance R1 and the positive pole of voltage stabilizing didoe DW; The positive pole of silicon rectifier diode D1 links to each other with the negative pole of electrochemical capacitor C2, the anodal connection circuit ground GND of the negative pole of voltage stabilizing didoe DW and electrochemical capacitor C2.

The negative pole of output end of 12V voltage stabilizing circuit links to each other with circuit negative pole VCC, and the output head anode of 12V voltage stabilizing circuit links to each other with the zero line side N and the circuit ground GND of 220V alternating current.

Description of drawings

Accompanying drawing 1 is that the present invention provides an embodiment circuit working schematic diagram of the night lighting lamp of control automatically.

Embodiment

Implement according to the fundamental diagram of the night lighting lamp of controlling automatically shown in the accompanying drawing 1 and the components and parts specification requirement of description of drawings and the following stated, can realize the present invention.

The parameter of components and parts and selection requirement

IC1 is the adjustable shunting reference voltage sources of three ends, and the model of selecting for use is TL431, and packing forms T0-92,3 pin is respectively with reference to the utmost point, anode and negative electrode, and output voltage is adjustable continuously between 2.5～36V, and current margin is 0.1～100mA;

The fine or not available universal instrument R of TL431 performance * 1k Ω shelves are measured, and method is: red test pencil connects anode, and black meter pen connects negative electrode, and resistance should be infinitely great ∞, and exchanging the test pencil measurement should be at several kilohm; Red test pencil connects with reference to the utmost point, and black meter pen connects negative electrode, and resistance should be infinitely great ∞, exchange test pencil after measured value should be at several kilohms; Red test pencil connects with reference to the utmost point; Black meter pen connects anode, and resistance should be about 30K Ω, exchanges the test pencil measurement and should be about 20K Ω; If it is very little or be zero to measure between certain bipod resistance; Show TL431 punch through damage, like the TL431 of no same model, direct substitutions such as available KA431, μ A431, LM431, YL431, S431;

BG1 is a phototriode, can select the phototriode of models such as 3DU5 for use;

SCR is a bidirectional triode thyristor, and its technical parameter is 1A/400V;

D1～D3 is a silicon rectifier diode, and the model of selecting for use is 1N4004;

The power of bleeder resistance R1 is that 2W, resistance are 510K Ω; The resistance of resistance R 2 is 4.3K Ω;

RP is a potentiometer, and its resistance is 820K Ω;

C1 is a decompression capacitor, and its capacity is 0.56 μ F/450V; The capacity of electrochemical capacitor C2 is 470 μ F/25V;

HL is an illuminating lamp, and illuminating lamp is selected the 220V incandescent lamp bulb for use, and power≤60W is used in suggestion.

Circuit production and circuit debugging

Automatically the circuit of the night lighting lamp of control is so long as the electronic devices and components performance of selecting for use is intact; The annexation of components and parts is welded in the accompanying drawing 1 to specifications; After physical connection line and welding quality process scrutiny were errorless, circuit generally need not debugged and get final product operate as normal;

For making things convenient for circuit debugging to avoid work to intersect, can debug respectively by 12V DC circuit, photosensitive sampling and bidirectional triode thyristor circuits for triggering, control circuit of bidirectional thyristor and lighting circuit three parts;

Photosensitive sample circuit answer simulate day or night light light and shade change, change the sensitivity of phototriode BG1 through the resistance of regulator potentiometer RP;

When the brighter situation of simulate day light, if find the luminance shortage of illuminating lamp HL, the not thorough of bidirectional triode thyristor SCR conducting is described, can suitably reduce the resistance of resistance R 2.

Claims

1. automatic night lighting lamp of control, it comprises 220V alternating current, halfwave rectifier and 12V voltage stabilizing circuit, photosensitive sampling and bidirectional triode thyristor circuits for triggering, control circuit of bidirectional thyristor and lighting circuit, its characteristic comprises:

Photosensitive sampling and bidirectional triode thyristor circuits for triggering are made up of phototriode BG1, potentiometer RP, silicon rectifier diode D2～D3 and the adjustable shunting reference voltage source of three ends IC1; Three ends are adjustable, and model that shunting reference voltage source IC1 selects for use is TL431; The collector electrode connection circuit negative pole VCC of phototriode BG1; The emitter of phototriode BG1 connects the reference utmost point of the adjustable shunting reference voltage source of three ends IC1 and the end of potentiometer RP; The other end of potentiometer RP and lever arm connection circuit ground GND thereof; The negative pole connection circuit negative pole VCC of silicon rectifier diode D2～D3 series connection back silicon rectifier diode D2, the positive pole of silicon rectifier diode D3 connects the anode of the adjustable shunting reference voltage source of three ends IC1;

Control circuit of bidirectional thyristor and lighting circuit are made up of bidirectional triode thyristor SCR, resistance R 2 and illuminating lamp HL; The negative electrode of the adjustable shunting reference voltage source of one termination, the three ends IC1 of resistance R 2; The control utmost point G of another termination bidirectional triode thyristor SCR of resistance R 2; The first anode T1 of bidirectional triode thyristor SCR meets the live wire end L of 220V alternating current, the second plate T2 connection circuit ground GND of bidirectional triode thyristor SCR through illuminating lamp HL;

Halfwave rectifier and 12V voltage stabilizing circuit are made up of decompression capacitor C1, bleeder resistance R1, voltage stabilizing didoe DW, silicon rectifier diode D1 and electrochemical capacitor C2; The live wire end L of the termination 220V alternating current of the end of decompression capacitor C1 and bleeder resistance R1; The negative pole of another termination silicon rectifier diode D1 of the other end of decompression capacitor C1 and bleeder resistance R1 and the positive pole of voltage stabilizing didoe DW; The positive pole of silicon rectifier diode D1 links to each other with the negative pole of electrochemical capacitor C2, the anodal connection circuit ground GND of the negative pole of voltage stabilizing didoe DW and electrochemical capacitor C2.

2. the night lighting lamp of automatic control according to claim 1, it is characterized in that: the negative pole of output end of 12V voltage stabilizing circuit links to each other with circuit negative pole VCC, and the output head anode of 12V voltage stabilizing circuit links to each other with the zero line side N and the circuit ground GND of 220V alternating current.