CN201639828U - Automatic light-regulating controller for reading lamp - Google Patents
Automatic light-regulating controller for reading lamp Download PDFInfo
- Publication number
- CN201639828U CN201639828U CN2010201381169U CN201020138116U CN201639828U CN 201639828 U CN201639828 U CN 201639828U CN 2010201381169 U CN2010201381169 U CN 2010201381169U CN 201020138116 U CN201020138116 U CN 201020138116U CN 201639828 U CN201639828 U CN 201639828U
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- triode
- resistance
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- desk lamp
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Abstract
The utility model provides an automatic light-regulating controller for a reading lamp, in particular to an automatic light-regulating controller which can turn on the reading lamp when the indoor light beam is too dim to read and can automatically regulate the brightness according to the intensity of the light beam. The automatic light-regulating controller comprises a reading lamp ZD, a power supply circuit, a light measuring circuit, an amplification circuit and a control circuit, wherein the power supply circuit consists of a C1, an R1, D1 to D4, a C2, a C3 and a three-terminal voltage stabilizer IC; the light measuring circuit consists of a photoresistor R, a potentiometer RP1 and a triode T1; the amplification circuit consists of triodes T1, T2 and T3; the control circuit consists of a silicon bipolar diode T4, a resistor R5 and a bidirectional silicone controlled rectifier SCR; and the reading lamp ZD is connected with an external power supply by the bidirectional SCR. In the utility model, the automatic light-regulating controller can turn on the reading lamp when the indoor light is too dim to read and can automatically regulate the brightness according to the intensity of the light beam, thus being convenient for use and effectively protecting the eyesight.
Description
Technical field
The utility model is a desk lamp light adjusting controller, particularly a kind of desk lamp of when indoor light reduces, connecting automatically, and according to the automatic desk lamp controller with an automatic light meter of regulating brightness of the power of light.
Background technology
The desk lamp that existing family uses, its switch is all controlled voluntarily by the user, in the time of with lamp, opens switch, in the time of without lamp, with regard to off switch, no matter and indoor illumination is bright or secretly, the brightness of desk lamp all is the same.This by the user controls voluntarily and brightness is the same all the time desk lamp, when turning on light night, go for switch owing to must feel about in the dark, so it is very inconvenient, because the brightness of desk lamp is the same all the time, so can the sensation insufficient light under the darker situation of light, and under the stronger situation of light, can feel that light is excessive, the deficiency of light and excessively all can people's eyes be damaged.
Summary of the invention
The purpose of this utility model is to use inconvenience to the defective that people's eyes can damage in order to overcome existing desk lamp, invent a kind of desk lamp of connecting automatically when indoor light reduces, and according to the desk lamp controller with an automatic light meter of the strong and weak automatic adjusting brightness of light.
The purpose of this utility model realizes as follows: described desk lamp controller with an automatic light meter, comprise a desk lamp ZD, and it is characterized in that: also comprise power circuit, light measuring circuit, amplifying circuit, control circuit;
Power circuit is made up of C1, R1, D1-D4, C2, C3 and three terminal regulator IC, and wherein, C1, D1-D4, C2 form step-down rectifier filtering, and three terminal regulator IC exports+9 direct voltages;
Light measuring circuit is made up of photo resistance R, potentiometer RP1 and triode T1, and photo resistance R is attempted by on the base stage and emitter of triode T1, and potentiometer RP1 is attempted by on the base stage and collector electrode of triode T1 by resistance R 3;
Amplifying circuit is made up of triode T1, T2 and T3, the base stage of triode T2 is connected with the collector electrode of triode T1, the emitter of triode T2 is connected with the collector electrode of triode T1 by resistance R 3, be connected by the current collection of capacitor C 4 with triode T3, the collector electrode of triode T2 is connected with the emitter of triode T1 respectively by potentiometer RP2 and is connected with the base stage of triode T3, the emitter of triode T3 is connected with the emitter of triode T1 by resistance R 4, the complementary direct coupled amplifier of its whole formation;
Control circuit is made up of silicon bipolar diode T4, resistance R 5, bidirectional triode thyristor SCR, the positive pole of silicon bipolar diode T4 is connected with the collector electrode of triode T3, the negative pole of silicon bipolar diode T4 also is connected with potentiometer RP1 by resistance R 5 with bidirectional triode thyristor SCR, and another negative pole is connected with photo resistance R;
Desk lamp ZD is connected with external power supply by bidirectional triode thyristor SCR.
Good effect of the present utility model is as follows: the utility model can be connected desk lamp automatically when indoor light reduces, and according to the strong and weak brightness of regulating desk lamp automatically of light, thus easy to use, and effective vision protection.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams
Embodiment
As shown in Figure 1, described desk lamp controller with an automatic light meter comprises a desk lamp ZD and power circuit, light measuring circuit, amplifying circuit, control circuit;
Power circuit is made up of C1, R1, D1-D4, C2, C3 and three terminal regulator IC, and wherein, C1, D1-D4, C2 form step-down rectifier filtering, and three terminal regulator IC exports+9 direct voltages;
Light measuring circuit is made up of photo resistance R, potentiometer RP1 and triode T1, and photo resistance R is attempted by on the base stage and emitter of triode T1, and potentiometer RP1 is attempted by on the base stage and collector electrode of triode T1 by resistance R 3;
Amplifying circuit is made up of triode T1, T2 and T3, the base stage of triode T2 is connected with the collector electrode of triode T1, the emitter of triode T2 is connected with the collector electrode of triode T1 by resistance R 3, be connected by the current collection of capacitor C 4 with triode T3, the collector electrode of triode T2 is connected with the emitter of triode T1 respectively by potentiometer RP2 and is connected with the base stage of triode T3, the emitter of triode T3 is connected with the emitter of triode T1 by resistance R 4, the complementary direct coupled amplifier of its whole formation;
Control circuit is made up of silicon bipolar diode T4, resistance R 5, bidirectional triode thyristor SCR, the positive pole of silicon bipolar diode T4 is connected with the collector electrode of triode T3, the negative pole of silicon bipolar diode T4 also is connected with potentiometer RP1 by resistance R 5 with bidirectional triode thyristor SCR, and another negative pole is connected with photo resistance R;
Desk lamp ZD is connected with external power supply by bidirectional triode thyristor SCR.
The model and the specification of described circuit element are as follows:
Bidirectional triode thyristor SCR:3A/600V
Triode T1, T3:PNP, 9015
Triode T2:NPN, 9015
Silicon bipolar diode T4:BT33
Three terminal regulator IC:7809
Diode D1-D4:IN4004
Photo resistance R:MG45
Operation principle of the present utility model is as follows:
When indoor light was dark partially, the R resistance increased, and the T1 collector current is increased, and after triode T2, T3 amplified, the T3 collector current charged to C4.When C4 was charged to certain value, silicon bipolar diode T4 conducting produced a pulse on resistance R 5, trigger bidirectional triode thyristor SCR conducting, and desk lamp ZD is lighted.If indoor light is dark more partially, the R resistance is big more, then through T1, and T2, the collector current that T3 amplifies is big more, and is fast more to the C4 charging rate, the trigger impulse reach, the desk lamp both end voltage increases, and desk lamp brightness increases; When indoor light was brighter, the charging rate of C4 slowed down, and moved behind the trigger impulse, and the brightness of desk lamp weakens thereupon; When if room brilliancy is arm's length standard brightness, because the setting in advance of RP1, the dividing potential drop of R and RP1 can not make triode T1 conducting, and then optical detection circuit and light adjusting circuit are not all worked, and desk lamp is not lighted.Like this, desk lamp is just lighted light modulation automatically according to indoor bright-dark degree or is extinguished.Do not need manually to turn on light vision protection.
Using method of the present utility model is as follows:
Install, the debugging of can switching on for safety, should notice that phase line and zero line do not want wrong;
Regulate RP1, make on normal sunny daytime when indoor, desk lamp is not worked, in the time of at dusk, light partially secretly the time desk lamp light;
Regulate RP2, desk lamp is changed reposefully along with the variation of indoor light, promptly can not surpass normal brightness, can not be lower than the brightness of permission;
After RP1 and RP2 mixed up, the contrast indoor light changed, and regulates RP1 and RP2 once more, and it is met the requirements;
The Yanguan Pass direct projection should be avoided in the position of photo resistance, can not be placed on the position of lucifuge.
Claims (2)
1. a desk lamp controller with an automatic light meter comprises a desk lamp ZD, it is characterized in that: also comprise power circuit, light measuring circuit, amplifying circuit, control circuit;
Power circuit is made up of C1, R1, D1-D4, C2, C3 and three terminal regulator IC, and wherein, C1, D1-D4, C2 form step-down rectifier filtering, and three terminal regulator IC exports+9 direct voltages;
Light measuring circuit is made up of photo resistance R, potentiometer RP1 and triode T1, and photo resistance R is attempted by on the base stage and emitter of triode T1, and potentiometer RP1 is attempted by on the base stage and collector electrode of triode T1 by resistance R 3;
Amplifying circuit is made up of triode T1, T2 and T3, the base stage of triode T2 is connected with the collector electrode of triode T1, the emitter of triode T2 is connected with the collector electrode of triode T1 by resistance R 3, be connected by the current collection of capacitor C 4 with triode T3, the collector electrode of triode T2 is connected with the emitter of triode T1 respectively by potentiometer RP2 and is connected with the base stage of triode T3, the emitter of triode T3 is connected with the emitter of triode T1 by resistance R 4, the complementary direct coupled amplifier of its whole formation;
Control circuit is made up of silicon bipolar diode T4, resistance R 5, bidirectional triode thyristor SCR, the positive pole of silicon bipolar diode T4 is connected with the collector electrode of triode T3, the negative pole of silicon bipolar diode T4 also is connected with potentiometer RP1 by resistance R 5 with bidirectional triode thyristor SCR, and another negative pole is connected with photo resistance R;
Desk lamp ZD is connected with external power supply by bidirectional triode thyristor SCR.
2. desk lamp according to claim 1 controller with an automatic light meter is characterized in that: the model and the specification of described circuit element are as follows:
Bidirectional triode thyristor SCR:3A/600V
Triode T1, T3:PNP, 9015
Triode T2:NPN, 9015
Silicon bipolar diode T4:BT33
Three terminal regulator IC:7809
Diode D1-D4:IN4004
Photo resistance R:MG45
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201381169U CN201639828U (en) | 2010-03-23 | 2010-03-23 | Automatic light-regulating controller for reading lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201381169U CN201639828U (en) | 2010-03-23 | 2010-03-23 | Automatic light-regulating controller for reading lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201639828U true CN201639828U (en) | 2010-11-17 |
Family
ID=43084336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201381169U Expired - Fee Related CN201639828U (en) | 2010-03-23 | 2010-03-23 | Automatic light-regulating controller for reading lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201639828U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102802323A (en) * | 2012-09-09 | 2012-11-28 | 刘昭利 | Automatic dimming table lamp |
| CN102811529A (en) * | 2011-05-31 | 2012-12-05 | 邓加慧 | Light-operated night-light circuit |
| CN104427707A (en) * | 2013-09-09 | 2015-03-18 | 海洋王（东莞）照明科技有限公司 | Dimming circuit and lamp |
-
2010
- 2010-03-23 CN CN2010201381169U patent/CN201639828U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811529A (en) * | 2011-05-31 | 2012-12-05 | 邓加慧 | Light-operated night-light circuit |
| CN102802323A (en) * | 2012-09-09 | 2012-11-28 | 刘昭利 | Automatic dimming table lamp |
| CN104427707A (en) * | 2013-09-09 | 2015-03-18 | 海洋王（东莞）照明科技有限公司 | Dimming circuit and lamp |
| CN104427707B (en) * | 2013-09-09 | 2019-01-29 | 海洋王（东莞）照明科技有限公司 | Light adjusting circuit and lamps and lanterns |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20120323 |