CN207283885U - LED infrared light board CDS light-operated circuits - Google Patents
LED infrared light board CDS light-operated circuits Download PDFInfo
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- CN207283885U CN207283885U CN201721347606.8U CN201721347606U CN207283885U CN 207283885 U CN207283885 U CN 207283885U CN 201721347606 U CN201721347606 U CN 201721347606U CN 207283885 U CN207283885 U CN 207283885U
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Abstract
The utility model discloses a kind of LED infrared light boards CDS light-operated circuits, including DC input, electric wire ground terminal, CDS light-controlled switching circuits and LED light source, two input terminals of the CDS light-controlled switching circuits are connected with DC input and electric wire ground terminal respectively, the output terminal connection LED light source of the CDS light-controlled switching circuits, the CDS light-controlled switching circuits include chip Q1, photodiode, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 and an infrared ray output port, the chip Q1 has six pins, wherein first three is input pin, three are output pin afterwards.LED infrared light boards CDS light-operated circuits provided by the utility model, it is light-operated by CDS, LED light flicker problem in dimming process can be efficiently solved, the utility model has the advantages that safe, reliability is high, simple in structure.
Description
Technical field
LED lamp circuit is the utility model is related to, more particularly to a kind of LED infrared light boards CDS light-operated circuits.
Background technology
The different brightness of existing adjustment LED light needs to use light modulator, and light modulator generally uses controllable silicon light modulation
Mode, LED light is to realize tunable optical, its power supply allows for analyzing silicon-controlled variable phase angle output, so as to convection current
Constant current to LED is unidirectionally adjusted.Accomplish that this point is extremely difficult while light modulator normal work is maintained, often lead
Cause performance bad.Problem can be shown as when light dims, and lantern festival flicker, uneven illumination are even, influence the vision of people.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of LED light that effectively solves was dimming
High, the simple in structure LED infrared light board CDS light-operated circuits of flicker problem, safe and reliable property in journey.
The technical solution of the utility model is as follows：
A kind of LED infrared light boards CDS light-operated circuits, including DC input, electric wire ground terminal, CDS light-operated switches electricity
Road and LED light source, two input terminals of the CDS light-controlled switching circuits are connected with DC input and electric wire ground terminal respectively,
The output terminal connection LED light source of the CDS light-controlled switching circuits, the CDS light-controlled switching circuits include chip Q1, photosensitive two pole
Pipe, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 and an infrared ray output port, the chip Q1 have
Six pins, wherein first three is input pin, and latter three are output pin, and the electric wire ground terminal connects the chip Q1's
First pin and the 4th pin, the DC input are drawn by the second pin and the 3rd of the resistance R1 connections chip Q1
Foot, two input terminals of the LED light source are connected with the 6th pin and DC input of the chip Q1 respectively, the resistance
It is connected across after R2, photodiode, resistance R3 series connection between DC input and electric wire ground terminal and with the chip Q1's
5th pin is connected, and the resistance R4, the electricity are in series between the 5th pin of the chip Q1 and the circuit of the 6th pin
It is connected across after resistance R5, resistance R6 series connection between the 6th pin and electric wire ground terminal of the chip Q1, the infrared ray output port
It is connected between the resistance R5 and resistance R6.
Further, the chip Q1 uses L2N7002DW1T1G integrated chips.
Further, the LED light source is formed by some LED light string parallel combinations.
Further, the LED light source include resistance R7, resistance R8, LED1, LED2, LED3, LED4, LED5, LED6,
LED7, LED8, LED9, LED10, LED11, the first LED light string is formed after the LED1, LED2, resistance R7 series connection, described
The second LED light string is formed after LED3, LED4, LED5 series connection, the 3rd LED light string is formed after LED6, LED7, LED8 series connection,
The 4th LED light string, first LED light string, the second LED light string, the 3rd LED are formed after LED9, LED10, LED11 series connection
Lamp string, the 4th LED light string are connected across between the 6th pin of DC input and the chip Q1 successively, the first LED
The resistance R8 is in series between lamp string and the second LED light string.
Further, the output voltage range of the DC input is 5-12V.
Relative to the prior art, the beneficial effects of the utility model are：The utility model is light-operated by CDS, effectively solution
LED light of having determined flicker problem in dimming process, the utility model have the advantages that safe, reliability is high, simple in structure.
Brief description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Referring to Fig. 1, a kind of LED infrared light boards CDS light-operated circuits, including DC input 1, electric wire ground terminal 2, CDS
Light-controlled switching circuit 3 and LED light source 4, the output voltage range of DC input 1 is 5-12V, CDS light-controlled switching circuits 3
Two input terminals are connected with DC input 1 and electric wire ground terminal 2 respectively, the output terminal connection LED of CDS light-controlled switching circuits 3
Light source 4, the CDS light-controlled switching circuits 3 include chip Q1, photodiode CDS, resistance R1, resistance R2, resistance R3, resistance
R4, resistance R5, resistance R6 and infrared ray output port an IR-OUT, the chip Q1 use L2N7002DW1T1G integrated chips,
With six pins, wherein the first pin, second pin, the 3rd pin are input pin, the 4th pin, the 5th pin, the 6th
Pin is output pin, and electric wire ground terminal 2 connects the first pin and the 4th pin of chip Q1, and DC input 1 passes through electricity
Hinder the second pin and the 3rd pin of R1 connection chips Q1, two input terminals of LED light source 4 respectively with the 6th pin of chip Q1 and
DC input 1 is connected, and DC input 1 and electric wire ground connection are connected across after resistance R2, photodiode, resistance R3 series connection
It is connected between end 2 and with the 5th pin of chip Q1, electricity is in series between the 5th pin of chip Q1 and the circuit of the 6th pin
R4 is hindered, is connected across after resistance R5, resistance R6 series connection between the 6th pin of chip Q1 and electric wire ground terminal 2, infrared ray output port
It is connected between resistance R5 and resistance R6.
In the present embodiment, LED light source 4 is formed by some LED light string parallel combinations, including resistance R7, resistance R8,
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED9, LED10, LED11, LED1, LED2, resistance R7 series connection
After form the first LED light string, the second LED light string, shape after LED6, LED7, LED8 series connection are formed after LED3, LED4, LED5 series connection
Into the 3rd LED light string, form the 4th LED light string after LED9, LED10, LED11 series connection, the first LED light string, the second LED light string,
3rd LED light string, the 4th LED light string are connected across between DC input 1 and the 6th pin of chip Q1 successively, the first LED
Resistance R8 is in series between lamp string and the second LED light string.Certainly, therefore the quantity of LED light does not define, can be according to reality
Border situation is increased or decreased.
The LED infrared light board CDS light-operated circuits that the present embodiment is provided, it is light-operated by CDS, LED light can be efficiently solved
The flicker problem in dimming process, the LED infrared light board CDS light-operated circuits have it is safe, reliability is high, simple in structure
Advantage.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the present invention, all in this practicality
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
- A kind of 1. LED infrared light boards CDS light-operated circuits, it is characterised in that：Including DC input, electric wire ground terminal, CDS light On-off circuit and LED light source are controlled, two input terminals of the CDS light-controlled switching circuits are grounded with DC input and electric wire respectively End is connected, the output terminals of CDS light-controlled switching circuits connection LED light source, the CDS light-controlled switching circuits include chip Q1, Photodiode, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6 and an infrared ray output port, the core Piece Q1 has six pins, and wherein first three is input pin, and latter three are output pin, described in the electric wire ground terminal connection The first pin and the 4th pin of chip Q1, the second pin that the DC input passes through the resistance R1 connections chip Q1 With the 3rd pin, two input terminals of the LED light source are connected with the 6th pin and DC input of the chip Q1 respectively, The resistance R2, photodiode, resistance R3 series connection after be connected across between DC input and electric wire ground terminal and with it is described The 5th pin of chip Q1 is connected, and the resistance is in series between the 5th pin of the chip Q1 and the circuit of the 6th pin It is connected across after R4, the resistance R5, resistance R6 series connection between the 6th pin and electric wire ground terminal of the chip Q1, it is described infrared Line output port is connected between the resistance R5 and resistance R6.
- 2. LED infrared light boards CDS light-operated circuits according to claim 1, it is characterised in that：The chip Q1 is used L2N7002DW1T1G integrated chips.
- 3. LED infrared light boards CDS light-operated circuits according to claim 1, it is characterised in that：If the LED light source be by Dry LED light string parallel combination forms.
- 4. LED infrared light boards CDS light-operated circuits according to claim 3, it is characterised in that：The LED light source includes electricity R7, resistance R8, LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED9, LED10, LED11 are hindered, it is described The first LED light string is formed after LED1, LED2, resistance R7 series connection, the second LED light is formed after LED3, LED4, LED5 series connection String, forms the 3rd LED light string, the 4th is formed after LED9, LED10, LED11 series connection after LED6, LED7, LED8 series connection LED light string, first LED light string, the second LED light string, the 3rd LED light string, that the 4th LED light string is connected across direct current successively is defeated Enter between end and the 6th pin of the chip Q1, the resistance is in series between first LED light string and the second LED light string R8。
- 5. LED infrared light boards CDS light-operated circuits according to claim 1, it is characterised in that：The DC input Output voltage range is 5-12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347606.8U CN207283885U (en) | 2017-10-17 | 2017-10-17 | LED infrared light board CDS light-operated circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347606.8U CN207283885U (en) | 2017-10-17 | 2017-10-17 | LED infrared light board CDS light-operated circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207283885U true CN207283885U (en) | 2018-04-27 |
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ID=61980759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721347606.8U Active CN207283885U (en) | 2017-10-17 | 2017-10-17 | LED infrared light board CDS light-operated circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207283885U (en) |
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2017
- 2017-10-17 CN CN201721347606.8U patent/CN207283885U/en active Active
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