CN201937932U - Automatic indoor lamp light dimmer - Google Patents
Automatic indoor lamp light dimmer Download PDFInfo
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- CN201937932U CN201937932U CN2010205486367U CN201020548636U CN201937932U CN 201937932 U CN201937932 U CN 201937932U CN 2010205486367 U CN2010205486367 U CN 2010205486367U CN 201020548636 U CN201020548636 U CN 201020548636U CN 201937932 U CN201937932 U CN 201937932U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The utility model relates to an automatic indoor lamp light dimmer, which comprises a power supply circuit, a voltage comparison circuit and a lamp light control circuit, wherein in the power supply circuit, one end of a voltage reduction capacitor C1 is connected with one input end of 220V commercial power, the other end of the C1 is connected with a negative electrode of a voltage stabilizing diode Z1, a positive electrode of the Z1 is connected with the other input end of the 220V commercial power for forming a common ground, and both ends of the Z1 are connected with a filtering capacitor C2 in parallel. One ends of resistors R1 and R2 in the voltage comparison circuit are respectively connected with the negative electrode of the Z1, the other end of the R1 and a collection electrode of a photosensitive triode T1 are connected with a third pin of the positive input end of an operation amplifier U1, the output end of the U1 is connected with a triggering electrode of a bidirectional thyristor U2 in the lamp light control circuit, an anode of the U2 is connected in series with a luminous element L1 and is connected with one input end of the commercial power, and a cathode of the U2 is connected with the common ground. The automatic indoor lamp light dimmer has the characteristic that the indoor illumination degree can be automatically controlled according to the indoor illumination change.
Description
Technical field
The utility model relates to a kind of indoor light automatic light modulation device, and it is particularly related to a kind of indoor light automatic light modulation device that can adjust luminous quantity according to setting illumination automatically.
Background technology
Along with the appearance of bidirectional triode thyristor, adjust indoor light illumination and become very easy.But general light adjusting circuit can only be fixing luminous according to set point, can not adjust luminous quantity automatically according to the variation of indoor illumination intensity.
The utility model content
The purpose of this utility model is to provide a kind of indoor light automatic light modulation device, can adjust luminous quantity automatically according to setting illumination.
The purpose of this utility model can realize by following circuit.It comprises by power circuit, voltage comparator circuit, lighting control circuit and forming.In power circuit, the end of decompression capacitor C1 links to each other with an input of 220V civil power, the other end of C1 links to each other with the negative pole of voltage stabilizing didoe Z1, the positive pole of Z1 links to each other formation publicly with another input of 220V civil power, the two ends of Z1 are parallel with filter capacitor C2, positive supply feeder ear 7 pin of operational amplifier U1 link to each other with the negative pole of Z1, and negative supply feeder ear 4 pin of U1 are with link to each other publicly; Resistance R 1 in the voltage comparator circuit, the end of R2 link to each other with the negative pole of Z1 respectively, and the collector electrode of the other end of R1, phototriode T1 links to each other with positive input terminal 3 pin of operational amplifier U1, and the emitter of phototriode T1 is with link to each other publicly; The stiff end of the other end of resistance R 2, potentiometer W1 links to each other with negative input end 2 pin of U1, and the moving plate end of W1, another stiff end are with link to each other publicly; The output of U1 links to each other with the trigger electrode of bidirectional triode thyristor U2 in the lighting control circuit, and the anode series connection light-emitting component L1 of U2 links to each other with an input of civil power, and the negative electrode of U2 is with link to each other publicly.
Above-mentioned light-emitting component L1 can be an incandescent lamp, also can be other light-emitting lamp that does not have perceptual load.
The operation principle of this device is such.According to room light illumination needs, adjust potentiometer W1 to the illumination desirable value.When ambient lighting weakened, the phototriode internal resistance increased, and operational amplifier U1 positive input terminal voltage raises, and output voltage increases, and caused the bidirectional triode thyristor angle of flow to increase, and incandescent lamp L1 operating voltage increases, and luminous quantity improves, and indoor illumination intensity increases, and vice versa.
The utility model is compared with prior art to have and can control the characteristics of indoor illumination intensity automatically according to the variation of room light photograph.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
In circuit shown in Figure 1, this indoor light automatic light modulation device comprises by power circuit, voltage comparator circuit, lighting control circuit to be formed.In the power circuit, the end of decompression capacitor C1 links to each other with an input of 220V civil power, the other end of C1 links to each other with the negative pole of voltage stabilizing didoe Z1, the positive pole of Z1 links to each other formation publicly with another input of 220V civil power, the two ends of Z1 are parallel with filter capacitor C2, positive supply feeder ear 7 pin of operational amplifier U1 link to each other with the negative pole of Z1, and negative supply feeder ear 4 pin of U1 are with link to each other publicly; Resistance R 1 in the voltage comparator circuit, the end of R2 link to each other with the negative pole of Z1 respectively, and the collector electrode of the other end of R1, phototriode T1 links to each other with positive input terminal 3 pin of operational amplifier U1, and the emitter of phototriode T1 is with link to each other publicly; The stiff end of the other end of resistance R 2, potentiometer W1 links to each other with negative input end 2 pin of U1, and the moving plate end of W1, another stiff end are with link to each other publicly; The output of U1 links to each other with the trigger electrode of bidirectional triode thyristor U2 in the lighting control circuit, and the anode series connection incandescent lamp L1 of U2 links to each other with an input of civil power, and the negative electrode of U2 is with link to each other publicly.
Element in the circuit shown in Figure 1 can adopt following parameter: resistance R 1=R2=10K, potentiometer W1=20K, capacitor C 1=0.1uF/450V, C2=220uF/25V, voltage stabilizing didoe Z1=15V, T1 selects the NPN phototriode for use, and operational amplifier U1 selects single supply op uA741 for use; U2 selects for use withstand voltage greater than 450 volts of bidirectional triode thyristors, and current value is decided according to incandescent lamp L1 power.
Claims (2)
1. indoor light automatic light modulation device, it comprises by power circuit, voltage comparator circuit, lighting control circuit and forming, it is characterized in that in the power circuit, the end of decompression capacitor C1 links to each other with an input of 220V civil power, the other end of C1 links to each other with the negative pole of voltage stabilizing didoe Z1, the positive pole of Z1 links to each other formation publicly with another input of 220V civil power, the two ends of Z1 are parallel with filter capacitor C2, positive supply feeder ear 7 pin of operational amplifier U1 link to each other with the negative pole of Z1, and negative supply feeder ear 4 pin of U1 are with link to each other publicly; Resistance R 1 in the voltage comparator circuit, the end of R2 link to each other with the negative pole of Z1 respectively, and the collector electrode of the other end of R1, phototriode T1 links to each other with positive input terminal 3 pin of operational amplifier U1, and the emitter of phototriode T1 is with link to each other publicly; The stiff end of the other end of resistance R 2, potentiometer W1 links to each other with negative input end 2 pin of U1, and the moving plate end of W1, another stiff end are with link to each other publicly; The output of U1 links to each other with the trigger electrode of bidirectional triode thyristor U2 in the lighting control circuit, and the anode series connection light-emitting component L1 of U2 links to each other with an input of civil power, and the negative electrode of U2 is with link to each other publicly.
2. a kind of indoor light automatic light modulation device according to claim 1 is characterized in that wherein said light-emitting component L1 is an incandescent lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205486367U CN201937932U (en) | 2010-09-30 | 2010-09-30 | Automatic indoor lamp light dimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205486367U CN201937932U (en) | 2010-09-30 | 2010-09-30 | Automatic indoor lamp light dimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937932U true CN201937932U (en) | 2011-08-17 |
Family
ID=44449433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205486367U Expired - Fee Related CN201937932U (en) | 2010-09-30 | 2010-09-30 | Automatic indoor lamp light dimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201937932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882447A (en) * | 2018-06-25 | 2018-11-23 | 珠海市恒裕英发科技有限公司 | A kind of light-operated circuit |
-
2010
- 2010-09-30 CN CN2010205486367U patent/CN201937932U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882447A (en) * | 2018-06-25 | 2018-11-23 | 珠海市恒裕英发科技有限公司 | A kind of light-operated circuit |
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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: 20110817 Termination date: 20110930 |