CN103974496A - LED (light emitting diode) lamp and light control circuit thereof - Google Patents
LED (light emitting diode) lamp and light control circuit thereof Download PDFInfo
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- CN103974496A CN103974496A CN201310041687.9A CN201310041687A CN103974496A CN 103974496 A CN103974496 A CN 103974496A CN 201310041687 A CN201310041687 A CN 201310041687A CN 103974496 A CN103974496 A CN 103974496A
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Abstract
The invention belongs to the field of lamp control circuits, and particularly relates to an LED (light emitting diode) lamp and a light control circuit thereof. The light control circuit of the LED lamp consists of common discrete components, so that cost is greatly lowered; since existing discrete component technology is pretty mature, the light control circuit of the LED lamp is quite stable in operation, and precision in operation is greatly improved.
Description
Technical field
The invention belongs to lamp control circuit field, relate in particular to a kind of LED light fixture and light control circuit thereof.
Background technology
Lamp lighting is seen everywhere in modern society the inside, and the light fixture using in all trades and professions has different purposes, and LED is as new type light source, and it has energy-saving and environmental protection, feature efficiently, and technology is ripe and be applied to every field.
Now, in order to save the energy, need to realize automation control to the illumination of LED light fixture, such as the illumination of LED light fixture is realized to Sound control etc., in addition, in some application scenario, adopt light control light fixture to light, when light is secretly to certain degree, light fixture just can light, and realizes intellectuality and the hommization of light fixture control.
But, adopt at present the mode of light control light fixture to have problem with high costs, precision is low.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of light control circuit of LED light fixture, and the mode that is intended to solve present employing light control light fixture exists problem with high costs, precision is low.
The embodiment of the present invention is achieved in that a kind of light control circuit of LED light fixture, connects LED lamp, and the light control circuit of described LED light fixture comprises:
Halfwave rectifier diode D1, relay discharge diode D2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, photo resistance R6, the first switching tube, second switch pipe, relay K 1;
The anode of described halfwave rectifier diode D1 connects control power supply, the negative electrode of described halfwave rectifier diode D1 is by the resistance R 1 of series connection, resistance R 2 and photo resistance R6 ground connection, the hot end of described the first switching tube connects control power supply by resistance R 3, the cold end of described the first switching tube is by resistance R 4 ground connection, the control end connecting resistance R1 of described the first switching tube and the public connecting end of resistance R 2, the coil of described relay K 1 is connected to be controlled between power supply and the hot end of second switch pipe, the cold end of described second switch pipe is by resistance R 5 ground connection, the cold end of control termination first switching tube of described second switch pipe, the negative electrode of described relay discharge diode D2 and anode are succeeded respectively the coil two ends of electrical equipment K1, the armature contact of described relay K 1 connects the positive source of LED lamp, the normally-closed contact sky of described relay K 1 connects, the normally opened contact of described relay K 1 connects the power cathode of LED lamp.
Another object of the embodiment of the present invention is to provide a kind of LED light fixture, comprises the light control circuit of LED lamp and LED light fixture, and the light control circuit of described LED light fixture comprises:
Halfwave rectifier diode D1, relay discharge diode D2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, photo resistance R6, the first switching tube, second switch pipe, relay K 1;
The anode of described halfwave rectifier diode D1 connects control power supply, the negative electrode of described halfwave rectifier diode D1 is by the resistance R 1 of series connection, resistance R 2 and photo resistance R6 ground connection, the hot end of described the first switching tube connects control power supply by resistance R 3, the cold end of described the first switching tube is by resistance R 4 ground connection, the control end connecting resistance R1 of described the first switching tube and the public connecting end of resistance R 2, the coil of described relay K 1 is connected to be controlled between power supply and the hot end of second switch pipe, the cold end of described second switch pipe is by resistance R 5 ground connection, the cold end of control termination first switching tube of described second switch pipe, the negative electrode of described relay discharge diode D2 and anode are succeeded respectively the coil two ends of electrical equipment K1, the armature contact of described relay K 1 connects the positive source of LED lamp, the normally-closed contact sky of described relay K 1 connects, the normally opened contact of described relay K 1 connects the power cathode of LED lamp.
In embodiments of the present invention, the light control circuit of LED light fixture adopts common discrete component to form, and greatly reduces cost, and because present discrete component technology is very ripe, cause the work of light control circuit of LED light fixture highly stable, greatly improved the precision of work.
Brief description of the drawings
Fig. 1 is the circuit structure diagram of the light control circuit of the LED light fixture that provides of first embodiment of the invention;
Fig. 2 is the circuit structure diagram of the light control circuit of the LED light fixture that provides of second embodiment of the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows the circuit structure of the light control circuit of the LED light fixture that first embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
A light control circuit for LED light fixture, connects LED lamp, and the light control circuit of described LED light fixture comprises:
Halfwave rectifier diode D1, relay discharge diode D2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, photo resistance R6, the first switching tube 100, second switch pipe 200, relay K 1;
The anode of described halfwave rectifier diode D1 connects control power supply, the negative electrode of described halfwave rectifier diode D1 is by the resistance R 1 of series connection, resistance R 2 and photo resistance R6 ground connection, the hot end of described the first switching tube 100 connects control power supply by resistance R 3, the cold end of described the first switching tube 100 is by resistance R 4 ground connection, the control end connecting resistance R1 of described the first switching tube 100 and the public connecting end of resistance R 2, the coil of described relay K 1 is connected to be controlled between power supply and the hot end of second switch pipe 200, the cold end of described second switch pipe 200 is by resistance R 5 ground connection, the cold end of control termination first switching tube 100 of described second switch pipe 200, the negative electrode of described relay discharge diode D2 and anode are succeeded respectively the coil two ends of electrical equipment K1, the armature contact of described relay K 1 connects the positive source of LED lamp, the normally-closed contact sky of described relay K 1 connects, the normally opened contact of described relay K 1 connects the power cathode of LED lamp.
As one embodiment of the invention, described the first switching tube 100 adopts NPN type triode Q1, the base stage of described NPN type triode Q1 is the control end of the first switching tube 100, the very hot end of the first switching tube 100 of current collection of described NPN type triode Q1, the very cold end of the first switching tube 100 of transmitting of described NPN type triode Q1.
As one embodiment of the invention, described second switch pipe 200 adopts NPN type triode Q2, the base stage of described NPN type triode Q2 is the control end of second switch pipe 200, the very hot end of second switch pipe 200 of current collection of described NPN type triode Q2, the very cold end of second switch pipe 200 of transmitting of described NPN type triode Q2.
Fig. 2 shows the circuit structure of the light control circuit of the LED light fixture that second embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows.
As one embodiment of the invention, described the first switching tube 100 adopts N-type metal-oxide-semiconductor Q3, the grid of described N-type metal-oxide-semiconductor Q3 is the control end of the first switching tube 100, the drain electrode of described N-type metal-oxide-semiconductor Q3 is the hot end of the first switching tube 100, and the source electrode of described N-type metal-oxide-semiconductor Q3 is the cold end of the first switching tube 100.
As one embodiment of the invention, described second switch pipe 200 adopts N-type metal-oxide-semiconductor Q4, the grid of described N-type metal-oxide-semiconductor Q4 is the control end of second switch pipe 200, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the hot end of second switch pipe 200, and the source electrode of described N-type metal-oxide-semiconductor Q4 is the cold end of second switch pipe 200.
Another object of the embodiment of the present invention is to provide a kind of LED light fixture, comprises the light control circuit of LED lamp and LED light fixture, and the light control circuit of described LED light fixture comprises:
Halfwave rectifier diode D1, relay discharge diode D2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, photo resistance R6, the first switching tube 100, second switch pipe 200, relay K 1;
The anode of described halfwave rectifier diode D1 connects control power supply, the negative electrode of described halfwave rectifier diode D1 is by the resistance R 1 of series connection, resistance R 2 and photo resistance R6 ground connection, the hot end of described the first switching tube 100 connects control power supply by resistance R 3, the cold end of described the first switching tube 100 is by resistance R 4 ground connection, the control end connecting resistance R1 of described the first switching tube 100 and the public connecting end of resistance R 2, the coil of described relay K 1 is connected to be controlled between power supply and the hot end of second switch pipe 200, the cold end of described second switch pipe 200 is by resistance R 5 ground connection, the cold end of control termination first switching tube 100 of described second switch pipe 200, the negative electrode of described relay discharge diode D2 and anode are succeeded respectively the coil two ends of electrical equipment K1, the armature contact of described relay K 1 connects the positive source of LED lamp, the normally-closed contact sky of described relay K 1 connects, the normally opened contact of described relay K 1 connects the power cathode of LED lamp.
As shown in Figure 1, as one embodiment of the invention, described the first switching tube 100 adopts NPN type triode Q1, the base stage of described NPN type triode Q1 is the control end of the first switching tube 100, the very hot end of the first switching tube 100 of current collection of described NPN type triode Q1, the very cold end of the first switching tube 100 of transmitting of described NPN type triode Q1.
As one embodiment of the invention, described second switch pipe 200 adopts NPN type triode Q2, the base stage of described NPN type triode Q2 is the control end of second switch pipe 200, the very hot end of second switch pipe 200 of current collection of described NPN type triode Q2, the very cold end of second switch pipe 200 of transmitting of described NPN type triode Q2.
As shown in Figure 2, as one embodiment of the invention, described the first switching tube 100 adopts N-type metal-oxide-semiconductor Q3, the grid of described N-type metal-oxide-semiconductor Q3 is the control end of the first switching tube 100, the drain electrode of described N-type metal-oxide-semiconductor Q3 is the hot end of the first switching tube 100, and the source electrode of described N-type metal-oxide-semiconductor Q3 is the cold end of the first switching tube 100.
As one embodiment of the invention, described second switch pipe 200 adopts N-type metal-oxide-semiconductor Q4, the grid of described N-type metal-oxide-semiconductor Q4 is the control end of second switch pipe 200, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the hot end of second switch pipe 200, and the source electrode of described N-type metal-oxide-semiconductor Q4 is the cold end of second switch pipe 200.
Adopt respectively NPN type triode Q1 and the NPN type triode Q2 operation principle as the light control circuit of example explanation LED light fixture taking the first switching tube 100 and second switch pipe 200 below:
This circuit forms bleeder circuit with resistance R1, R2 and photo resistance R6 respectively, when light dark to a certain degree time, the base voltage of NPN type triode Q1 rises to and makes NPN type triode Q1 and NPN type triode Q2 conducting, relay K 1 adhesive, normally opened contact becomes normally closed, and normally-closed contact often becomes to be opened, because the power line of LED lamp is connected on normally opened contact, become when normally closed when often opening, the power supply (exchange 12+, exchange 12-) of LED lamp is connected, and LED lamp is lighted.Resistance R 1 regulates for action sensitivity, and diode D1 is halfwave rectifier diode, provides rectification, for circuit provides operating voltage and operating current for controlling power supply.R6 is photo resistance, experiences the power of light, when light is dark, and circuit turn-on.Diode D2 is relay discharge diode, in the time that relay pipe K1 quits work, the electric energy in coil is discharged.
In embodiments of the present invention, the light control circuit of LED light fixture adopts common discrete component to form, and greatly reduces cost, and because present discrete component technology is very ripe, cause the work of light control circuit of LED light fixture highly stable, greatly improved the precision of work.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a light control circuit for LED light fixture, connects LED lamp, it is characterized in that, the light control circuit of described LED light fixture comprises:
Halfwave rectifier diode D1, relay discharge diode D2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, photo resistance R6, the first switching tube, second switch pipe, relay K 1;
The anode of described halfwave rectifier diode D1 connects control power supply, the negative electrode of described halfwave rectifier diode D1 is by the resistance R 1 of series connection, resistance R 2 and photo resistance R6 ground connection, the hot end of described the first switching tube connects control power supply by resistance R 3, the cold end of described the first switching tube is by resistance R 4 ground connection, the control end connecting resistance R1 of described the first switching tube and the public connecting end of resistance R 2, the coil of described relay K 1 is connected to be controlled between power supply and the hot end of second switch pipe, the cold end of described second switch pipe is by resistance R 5 ground connection, the cold end of control termination first switching tube of described second switch pipe, the negative electrode of described relay discharge diode D2 and anode are succeeded respectively the coil two ends of electrical equipment K1, the armature contact of described relay K 1 connects the positive source of LED lamp, the normally-closed contact sky of described relay K 1 connects, the normally opened contact of described relay K 1 connects the power cathode of LED lamp.
2. the light control circuit of LED light fixture as claimed in claim 1, it is characterized in that, described the first switching tube adopts NPN type triode Q1, the base stage of described NPN type triode Q1 is the control end of the first switching tube, the very hot end of the first switching tube of current collection of described NPN type triode Q1, the very cold end of the first switching tube of transmitting of described NPN type triode Q1.
3. the light control circuit of LED light fixture as claimed in claim 1, it is characterized in that, described second switch pipe adopts NPN type triode Q2, the base stage of described NPN type triode Q2 is the control end of second switch pipe, the very hot end of second switch pipe of current collection of described NPN type triode Q2, the very cold end of second switch pipe of transmitting of described NPN type triode Q2.
4. the light control circuit of LED light fixture as claimed in claim 1, it is characterized in that, described the first switching tube adopts N-type metal-oxide-semiconductor Q3, the grid of described N-type metal-oxide-semiconductor Q3 is the control end of the first switching tube, the drain electrode of described N-type metal-oxide-semiconductor Q3 is the hot end of the first switching tube, and the source electrode of described N-type metal-oxide-semiconductor Q3 is the cold end of the first switching tube.
5. the light control circuit of LED light fixture as claimed in claim 1, it is characterized in that, described second switch pipe adopts N-type metal-oxide-semiconductor Q4, the grid of described N-type metal-oxide-semiconductor Q4 is the control end of second switch pipe, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the hot end of second switch pipe, and the source electrode of described N-type metal-oxide-semiconductor Q4 is the cold end of second switch pipe.
6. a LED light fixture, comprises and it is characterized in that the light control circuit of LED lamp and LED light fixture, and the light control circuit of described LED light fixture comprises:
Halfwave rectifier diode D1, relay discharge diode D2, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, photo resistance R6, the first switching tube, second switch pipe, relay K 1;
The anode of described halfwave rectifier diode D1 connects control power supply, the negative electrode of described halfwave rectifier diode D1 is by the resistance R 1 of series connection, resistance R 2 and photo resistance R6 ground connection, the hot end of described the first switching tube connects control power supply by resistance R 3, the cold end of described the first switching tube is by resistance R 4 ground connection, the control end connecting resistance R1 of described the first switching tube and the public connecting end of resistance R 2, the coil of described relay K 1 is connected to be controlled between power supply and the hot end of second switch pipe, the cold end of described second switch pipe is by resistance R 5 ground connection, the cold end of control termination first switching tube of described second switch pipe, the negative electrode of described relay discharge diode D2 and anode are succeeded respectively the coil two ends of electrical equipment K1, the armature contact of described relay K 1 connects the positive source of LED lamp, the normally-closed contact sky of described relay K 1 connects, the normally opened contact of described relay K 1 connects the power cathode of LED lamp.
7. LED light fixture as claimed in claim 6, it is characterized in that, described the first switching tube adopts NPN type triode Q1, the base stage of described NPN type triode Q1 is the control end of the first switching tube, the very hot end of the first switching tube of current collection of described NPN type triode Q1, the very cold end of the first switching tube of transmitting of described NPN type triode Q1.
8. LED light fixture as claimed in claim 6, it is characterized in that, described second switch pipe adopts NPN type triode Q2, the base stage of described NPN type triode Q2 is the control end of second switch pipe, the very hot end of second switch pipe of current collection of described NPN type triode Q2, the very cold end of second switch pipe of transmitting of described NPN type triode Q2.
9. LED light fixture as claimed in claim 6, it is characterized in that, described the first switching tube adopts N-type metal-oxide-semiconductor Q3, the grid of described N-type metal-oxide-semiconductor Q3 is the control end of the first switching tube, the drain electrode of described N-type metal-oxide-semiconductor Q3 is the hot end of the first switching tube, and the source electrode of described N-type metal-oxide-semiconductor Q3 is the cold end of the first switching tube.
10. LED light fixture as claimed in claim 6, it is characterized in that, described second switch pipe adopts N-type metal-oxide-semiconductor Q4, the grid of described N-type metal-oxide-semiconductor Q4 is the control end of second switch pipe, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the hot end of second switch pipe, and the source electrode of described N-type metal-oxide-semiconductor Q4 is the cold end of second switch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310041687.9A CN103974496A (en) | 2013-02-01 | 2013-02-01 | LED (light emitting diode) lamp and light control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310041687.9A CN103974496A (en) | 2013-02-01 | 2013-02-01 | LED (light emitting diode) lamp and light control circuit thereof |
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| CN103974496A true CN103974496A (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310041687.9A Pending CN103974496A (en) | 2013-02-01 | 2013-02-01 | LED (light emitting diode) lamp and light control circuit thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108495427A (en) * | 2018-06-06 | 2018-09-04 | 昆明理工大学津桥学院 | Automatic Teller Machine keyboard automatic lighting circuit |
| CN110868780A (en) * | 2019-10-24 | 2020-03-06 | 湖州灵粮生态农业有限公司 | Intelligent illumination compensator |
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| CN201155700Y (en) * | 2008-01-16 | 2008-11-26 | 郭杨 | Light-operated emergency illuminator |
| CN201330988Y (en) * | 2009-01-05 | 2009-10-21 | 刘作锡 | Solar multipurpose lamp |
| CN201718100U (en) * | 2010-07-15 | 2011-01-19 | 无锡职业技术学院 | Intelligent controller of street lamp power supply |
| CN202713475U (en) * | 2012-07-27 | 2013-01-30 | 沈阳工业大学 | Apparatus for improving resolution of camera in night |
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2013
- 2013-02-01 CN CN201310041687.9A patent/CN103974496A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201155700Y (en) * | 2008-01-16 | 2008-11-26 | 郭杨 | Light-operated emergency illuminator |
| CN201330988Y (en) * | 2009-01-05 | 2009-10-21 | 刘作锡 | Solar multipurpose lamp |
| CN201718100U (en) * | 2010-07-15 | 2011-01-19 | 无锡职业技术学院 | Intelligent controller of street lamp power supply |
| CN202713475U (en) * | 2012-07-27 | 2013-01-30 | 沈阳工业大学 | Apparatus for improving resolution of camera in night |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495427A (en) * | 2018-06-06 | 2018-09-04 | 昆明理工大学津桥学院 | Automatic Teller Machine keyboard automatic lighting circuit |
| CN110868780A (en) * | 2019-10-24 | 2020-03-06 | 湖州灵粮生态农业有限公司 | Intelligent illumination compensator |
| CN110868780B (en) * | 2019-10-24 | 2021-09-24 | 湖州灵粮生态农业有限公司 | Intelligent illumination compensator |
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Application publication date: 20140806 |