CN201944665U - Desk lamp capable of automatically controlling illumination - Google Patents
Desk lamp capable of automatically controlling illumination Download PDFInfo
- Publication number
- CN201944665U CN201944665U CN2011200777801U CN201120077780U CN201944665U CN 201944665 U CN201944665 U CN 201944665U CN 2011200777801 U CN2011200777801 U CN 2011200777801U CN 201120077780 U CN201120077780 U CN 201120077780U CN 201944665 U CN201944665 U CN 201944665U
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- desk lamp
- resistance
- silicon
- rectifier diode
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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
Abstract
The utility model relates to a desk lamp capable of automatically controlling the illumination, which belongs to the field of electronic technology application and consists of a commercial-power power supply, an electric incandescent lamp, a full-bridge rectifying circuit, a unidirectional silicon controlled rectifier SCR, a triggering circuit of the unidirectional silicon controlled rectifier SCR and a photoconductive resistor RG. The desk lamp is characterized in that the triggering circuit of the unidirectional silicon controlled rectifier SCR adopts a relaxation oscillator, and a light sensing circuit consists of the photoconductive resistor RG, a resistor R3 and a silicon rectifying diode D6. The desk lamp capable of automatically controlling the illumination can automatically regulate the light emitting quantity of the desk lamp according to the illumination intensity of the ambient environment. When the environment illumination is weak, the light emitting brightness can be increased. When the environment illumination becomes strong, the light emitting brightness of the desk lamp can become dark. The manual dimming trouble can be avoided, the eyesight of eyes can also be protected, and the unnecessary electric power waste is also favorably avoided. The desk lamp has the advantages that a circuit is simple, all components adopt ordinary components, and the manufacture cost is low. The desk lamp is suitable for batch development and is also suitable for developing the novel desk lamp with a function of automatically controlling the illumination.
Description
Technical field
The utility model belongs to the application of electronic technology field, relates to a kind of desk lamp of automatic control illumination.
Background technology
Various lamp dimmer circuit common on the market mostly are made up of components and parts such as bidirectional triode thyristor, diac and potentiometers, and also by lamp dimmer circuit is to adopt one-way SCR and RC circuits for triggering to form.Their common feature is that the luminosity of desk lamp can only pass through manual adjustment, and desk lamp itself can not be regulated the brightness of light automatically along with the variation of surrounding environment brightness.
The desk lamp of automatic control illumination described in the utility model can be according to the strong and weak luminous quantity of adjusting desk lamp automatically of surrounding environment illumination.When the illumination of ambient light was more weak, the luminosity of desk lamp will increase; When the ambient light illumination grow, the luminosity of desk lamp is with regard to deepening.The utility model had both been removed the trouble of manual light modulation from, can protect the eyesight of eyes again, also helped and stopped unnecessary power wastage.
It is simple that this desk lamp has a circuit, all uses common components and parts, and cost of manufacture only needs tens yuan, is well suited for exploitation in batches, also is suitable for the novel reading lamp that factory's exploitation has automatic control illumination function.
Through the test of multiple scheme, relatively and analyze, the utility model only uses a small amount of common discrete component, has realized that circuit structure is simple, cost is low, designing requirement such as effective, reliable working performance.
Related relevant technologies during below the desk lamp of this automatic control illumination of detailed description is made.
The utility model content
Goal of the invention and beneficial effect: the desk lamp of automatic control illumination described in the utility model can be according to the strong and weak luminous quantity of adjusting desk lamp automatically of surrounding environment illumination.When ambient lighting was more weak, its luminosity will increase; When the ambient lighting grow, the desk lamp luminosity is with regard to deepening.The utility model had both been removed the trouble of manual light modulation from, can protect the eyesight of eyes again, also helped the saving unnecessary power consumption.It is simple that this desk lamp has a circuit, all uses common components and parts, and cost of manufacture only needs tens yuan, is well suited for exploitation in batches, also is suitable for developing the novel reading lamp with automatic control illumination function.
Technical characterictic: the desk lamp of controlling illumination automatically is made up of mains supply, incandescent lamp, full bridge rectifier, unidirectional controllable silicon S CR and circuits for triggering thereof, photo resistance RG, it is characterized in that: the circuits for triggering of unidirectional controllable silicon S CR adopt relaxor, and photosensitive circuit is made up of photo resistance RG, resistance R 3 and silicon rectifier diode D6.
Annexation in each several part circuit composition and the circuit between the components and parts
Full bridge rectifier: be connected into full bridge rectifier by 4 silicon rectifier diode D1～D4, be connected on the input of full bridge rectifier behind the live wire end L serial connection incandescent lamp of mains supply respectively with the zero line side N of mains supply, the just very circuit anode VCC of full bridge rectifier output, the negative pole of full bridge rectifier output are circuit ground GND.
Unidirectional controllable silicon S CR and circuits for triggering thereof are by unidirectional controllable silicon S CR, resistance R 1, potentiometer RP1, capacitor C 1, resistance R 2 and silicon rectifier diode D5 form, it is characterized in that: the anodal VCC of the anode connection circuit of unidirectional controllable silicon S CR, the negative electrode connection circuit ground GND of unidirectional controllable silicon S CR, the control utmost point of unidirectional controllable silicon S CR connects the negative pole of silicon rectifier diode D5, connect the negative pole of silicon rectifier diode D6 behind the cathode series resistance R2 of silicon rectifier diode D5, one end of capacitor C 1 links to each other with the negative pole of the end of potentiometer RP1 and silicon rectifier diode D6, series resistor R1 after the other end of potentiometer RP1 links to each other with the lever arm of potentiometer RP1, the other end connection circuit ground GND of capacitor C 1.
Photosensitive circuit is made up of photo resistance RG, resistance R 3 and silicon rectifier diode D6, the end of photo resistance RG connects positive pole and resistance R 3 one ends of silicon rectifier diode D6 simultaneously, the other end connection circuit ground GND of photo resistance RG, the anodal VCC of connection circuit behind resistance R 3 other end series resistor R1.
The circuit working principle: the typical circuit structure of it and a common lamp dimmer is quite similar.Form relaxor by potentiometer RP1, capacitor C 1, resistance R 2 and silicon diode D5, be used for producing pulse-triggered unidirectional controllable silicon S CR.When capacitor C 1 is charged to about 60V voltage, silicon rectifier diode D5 conducting, the unidirectional controllable silicon S CR conducting that is triggered.Regulator potentiometer RP1 can change capacitor C 1 charge rate, thereby changes the unidirectional controllable silicon S CR angle of flow, reaches the purpose of desk lamp light modulation.Resistance R 3, photo resistance RG constitute divider and also charge to capacitor C 1 by silicon rectifier diode D6, and change resistance R 3, photo resistance RG intrinsic standoff ratio can change the unidirectional controllable silicon S CR angle of flow, and the brightness of incandescent lamp is changed.
RG has replaced divider resistance because of photo resistance, when the light around the desk lamp is more weak, photo resistance RG presents high resistance, silicon rectifier diode D6 right-hand member current potential raises, capacitor C 1 charge rate is accelerated, frequency of oscillation uprises, and the unidirectional controllable silicon S CR angle of flow increases, and the incandescent lamp both end voltage raises, brightness increases.When the desk lamp ambient light strengthens, photo resistance RG resistance decreasing, opposite with said process, the voltage step-down at incandescent lamp two ends, incandescent lamp brightness reduces.
Description of drawings
Accompanying drawing is the circuit working schematic diagram of an embodiment of desk lamp of the automatic control illumination that provides of the utility model.
The specific embodiment
Implement according to the circuit working schematic diagram of the desk lamp of automatic control illumination shown in the drawings and the specification requirement of description of drawings and the following stated components and parts, can realize the utility model.
The selection of components and parts and technical parameter thereof
It is the 1/8W metalfilmresistor that resistance is all selected power for use, and the resistance of resistance R 1 is 100K Ω, and the resistance of resistance R 2 is 22K Ω, and the resistance of resistance R 3 is 47K Ω;
The power of potentiometer RP1 is 2W, and its resistance is 220K Ω;
Photo resistance RG, its model can be selected MG45 for use;
Capacitor C 1 optional electric capacity of the dacron, capacity are 0.022 μ F, the withstand voltage 400V of being;
Diode D1～D6,6 are all selected for use model is the silicon rectifier diode of IN4007;
It is 2N6565 that unidirectional controllable silicon S CR selects model for use, or to select parameter be any model of 1A/400V;
Incandescent lamp HL should use the incandescent lamp of power≤60W.
Preparation method: photo resistance RG should be placed on insensitive place, and suggestion photo resistance RG is installed in the position that Desk lamp feet back desk lamp light can not direct irradiation, is used for experiencing the surrounding environment illuminance, otherwise the sensitization of photo resistance RG mistake takes place easily.
Circuit debugging: when circuit debugging, earlier potentiometer RP1 is transferred to resistance, surveys incandescent lamp two ends alternating voltage with universal meter and should more than 200V,, make it to reach requirement if be lower than the resistance that 200V can slightly reduce resistance R 1 for to zero position; Transfer potentiometer RP1 to make incandescent lamp reach suitable brightness again, as: during the ambient light illumination deepening, desk lamp brightness meeting brightens gradually, increases illuminance, and the circuit of adjusting can come into operation.The bulb of this desk lamp should use the incandescent lamp of power≤60W.
Claims (4)
1. automatic desk lamp of control illumination, form by mains supply, incandescent lamp, full bridge rectifier, unidirectional controllable silicon S CR and circuits for triggering thereof, photo resistance RG, it is characterized in that: the circuits for triggering of unidirectional controllable silicon S CR adopt relaxor, and photosensitive circuit is made up of photo resistance RG, resistance R 3 and silicon rectifier diode D6.
2. the desk lamp of automatic control illumination according to claim 1, the feature of full bridge rectifier is: be connected into full bridge rectifier by 4 silicon rectifier diode D1～D4, be connected on the input of full bridge rectifier behind the live wire end L serial connection incandescent lamp of mains supply respectively with the zero line side N of mains supply, the just very circuit anode VCC of full bridge rectifier output, the negative pole of full bridge rectifier output are circuit ground GND.
3. the desk lamp of automatic control illumination according to claim 1, unidirectional controllable silicon S CR and circuits for triggering thereof are by unidirectional controllable silicon S CR, resistance R 1, potentiometer RP1, capacitor C 1, resistance R 2 and silicon rectifier diode D5 form, it is characterized in that: the anodal VCC of the anode connection circuit of unidirectional controllable silicon S CR, the negative electrode connection circuit ground GND of unidirectional controllable silicon S CR, the control utmost point of unidirectional controllable silicon S CR connects the negative pole of silicon rectifier diode D5, connect the negative pole of silicon rectifier diode D6 behind the cathode series resistance R2 of silicon rectifier diode D5, one end of capacitor C 1 links to each other with the negative pole of the end of potentiometer RP1 and silicon rectifier diode D6, series resistor R1 after the other end of potentiometer RP1 links to each other with the lever arm of potentiometer RP1, the other end connection circuit ground GND of capacitor C 1.
4. the desk lamp of automatic control illumination according to claim 1, photosensitive circuit is made up of photo resistance RG, resistance R 3 and silicon rectifier diode D6, it is characterized in that: the end of photo resistance RG connects positive pole and resistance R 3 one ends of silicon rectifier diode D6 simultaneously, the other end connection circuit ground GND of photo resistance RG, the anodal VCC of connection circuit behind resistance R 3 other end series resistor R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200777801U CN201944665U (en) | 2011-03-23 | 2011-03-23 | Desk lamp capable of automatically controlling illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200777801U CN201944665U (en) | 2011-03-23 | 2011-03-23 | Desk lamp capable of automatically controlling illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944665U true CN201944665U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200777801U Expired - Fee Related CN201944665U (en) | 2011-03-23 | 2011-03-23 | Desk lamp capable of automatically controlling illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944665U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102202451A (en) * | 2011-03-23 | 2011-09-28 | 朱虹 | Desk lamp capable of automatically controlling illumination |
| CN102404923A (en) * | 2011-12-28 | 2012-04-04 | 洪珍 | Desk lamp capable of controlling brightness automatically |
| CN102548164A (en) * | 2011-12-04 | 2012-07-04 | 洪珍 | Light control desk lamp |
| CN107748458A (en) * | 2017-11-30 | 2018-03-02 | 武汉天马微电子有限公司 | A kind of display panel and display device |
-
2011
- 2011-03-23 CN CN2011200777801U patent/CN201944665U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102202451A (en) * | 2011-03-23 | 2011-09-28 | 朱虹 | Desk lamp capable of automatically controlling illumination |
| CN102548164A (en) * | 2011-12-04 | 2012-07-04 | 洪珍 | Light control desk lamp |
| CN102404923A (en) * | 2011-12-28 | 2012-04-04 | 洪珍 | Desk lamp capable of controlling brightness automatically |
| CN107748458A (en) * | 2017-11-30 | 2018-03-02 | 武汉天马微电子有限公司 | A kind of display panel and display device |
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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: 20110824 Termination date: 20120323 |