CN202335001U - Automatic compensator for luminous decay of LED (light-emitting diode) lamps - Google Patents
Automatic compensator for luminous decay of LED (light-emitting diode) lamps Download PDFInfo
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- CN202335001U CN202335001U CN2011204502437U CN201120450243U CN202335001U CN 202335001 U CN202335001 U CN 202335001U CN 2011204502437 U CN2011204502437 U CN 2011204502437U CN 201120450243 U CN201120450243 U CN 201120450243U CN 202335001 U CN202335001 U CN 202335001U
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- illumination
- voltage stabilizing
- resistance
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Abstract
The utility model discloses an automatic compensator for luminous decay of LED (light-emitting diode) lamps. The automatic compensator comprises a compensating circuit. The compensating circuit comprises a power supply, a filter circuit, a rectification circuit, a voltage-stabilizing circuit, a light-operated detection circuit and an illumination correcting circuit, wherein the power supply is connected with the light-operated detection circuit and the illumination correcting circuit respectively by virtue of the filter circuit, the rectification circuit and the voltage-stabilizing circuit; and the light-operated detection circuit is connected with the illumination correcting circuit.
Description
Technical field
The utility model belongs to LED lamp technical field, mainly is meant a kind of LED light automatic compensator that declines.
Background technology
Existing LED lamp mostly lacks the light decay automatic compensatory technique, causes when LED light declines, and can not in time be compensated, and influences LED lamp effect.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency that prior art exists, and a kind of LED light that when LED light declines, can not in time be compensated automatic compensator that declines is provided.
The technical scheme that realizes the utility model is: this LED light automatic compensator that declines comprises a compensating circuit; This compensating circuit comprises power supply, filter circuit, rectification circuit, voltage stabilizing circuit, light-operated testing circuit, illumination correcting circuit; Wherein power supply connects light-operated testing circuit and illumination correcting circuit respectively through filter circuit, rectification circuit, voltage stabilizing circuit, and light-operated testing circuit also is connected with the illumination correcting circuit.
This technical scheme also comprises:
Said power supply, filter circuit, rectification circuit, voltage stabilizing circuit, light-operated testing circuit comprise mains switch S, filter capacitor C1, capacitor C 2, inductance L, rectifier UR, current-limiting resistance R1, voltage stabilizing didoe VS;
Said light-operated testing circuit comprises photo resistance RG, resistance R 4, potentiometer RP, capacitor C3, transistor V1, bidirectional diode V2, controllable silicon VT; Wherein
The energized switch S, alternating current 220V voltage is divided into two-way after capacitor C 1 and inductance L filtering, rectifier UR rectification: the one tunnel provides direct voltage for light-operated circuit after resistance R 1 current limliting, voltage stabilizing didoe VS voltage stabilizing and capacitor C 2 filtering; Another road is added in controllable silicon VT two ends through the LED lamp; Photo resistance RG is used for detecting the illumination of LED lamp as the light detection probe, when LED lamp illumination is not enough; The resistance of photo resistance RG increases the base potential that makes transistor V1 and reduces, and collector current increases, and the charging interval of C3 shortens; Make the trigger impulse Phase advance; The angle of flow of controllable silicon VT increases, and to increase LED lamp current and voltage, proofreaies and correct illumination.
The beneficial effect that the utlity model has: realize the LED light automatic function that declines, have characteristics such as simple in structure, that cost is low.
Description of drawings
Fig. 1 is the utility model circuit block diagram.
Fig. 2 is the circuit theory diagrams of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in the figure, power circuit is made up of mains switch S, filter capacitor C1, C2, inductance L, rectifier UR, current-limiting resistance R1 and voltage stabilizing didoe VS.
Light-operated circuit is made up of photo resistance RG, resistance R 4, potentiometer RP, capacitor C3, transistor V1, bidirectional diode V2, controllable silicon VT.
The energized switch, alternating current 220V voltage is divided into two-way through C1 and L filtering after the UR rectification:
One the tunnel provides 9V direct voltage for light-operated circuit after R1 current limliting, VS voltage stabilizing and C2 filtering.
Another road is added in controllable silicon VT two ends through the LED lamp.
Photo resistance RG is used for detecting the illumination of LED lamp as the light detection probe.When light decay, illumination deficiency appearred in the LED lamp, the resistance of RG increased the base potential that makes V1 and reduces, and collector current increases; The charging interval of C3 shortens, and makes the trigger impulse Phase advance, and the angle of flow of controllable silicon VT increases; To increase LED lamp current and voltage, proofread and correct illumination.
Claims (2)
1. LED light automatic compensator that declines; It is characterized in that comprising a compensating circuit; This compensating circuit comprises power supply, filter circuit, rectification circuit, voltage stabilizing circuit, light-operated testing circuit, illumination correcting circuit; Wherein power supply connects light-operated testing circuit and illumination correcting circuit respectively through filter circuit, rectification circuit, voltage stabilizing circuit, and light-operated testing circuit also is connected with the illumination correcting circuit.
2. the LED light as claimed in claim 1 automatic compensator that declines is characterized in that:
Said power supply, filter circuit, rectification circuit, voltage stabilizing circuit, light-operated testing circuit comprise mains switch S, filter capacitor C1, capacitor C 2, inductance L, rectifier UR, current-limiting resistance R1, voltage stabilizing didoe VS;
Said light-operated testing circuit comprises photo resistance RG, resistance R 4, potentiometer RP, capacitor C3, transistor V1, bidirectional diode V2, controllable silicon VT; Wherein
The energized switch S, alternating current 220V voltage is divided into two-way after capacitor C 1 and inductance L filtering, rectifier UR rectification: the one tunnel provides direct voltage for light-operated circuit after resistance R 1 current limliting, voltage stabilizing didoe VS voltage stabilizing and capacitor C 2 filtering; Another road is added in controllable silicon VT two ends through the LED lamp; Photo resistance RG is used for detecting the illumination of LED lamp as the light detection probe, when LED lamp illumination is not enough; The resistance of photo resistance RG increases the base potential that makes transistor V1 and reduces, and collector current increases, and the charging interval of C3 shortens; Make the trigger impulse Phase advance; The angle of flow of controllable silicon VT increases, and to increase LED lamp current and voltage, proofreaies and correct illumination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204502437U CN202335001U (en) | 2011-11-15 | 2011-11-15 | Automatic compensator for luminous decay of LED (light-emitting diode) lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204502437U CN202335001U (en) | 2011-11-15 | 2011-11-15 | Automatic compensator for luminous decay of LED (light-emitting diode) lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202335001U true CN202335001U (en) | 2012-07-11 |
Family
ID=46446963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204502437U Expired - Fee Related CN202335001U (en) | 2011-11-15 | 2011-11-15 | Automatic compensator for luminous decay of LED (light-emitting diode) lamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202335001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156697A (en) * | 2017-12-20 | 2018-06-12 | 李姗姗 | A kind of energy-saving LED illumination adjuster |
-
2011
- 2011-11-15 CN CN2011204502437U patent/CN202335001U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156697A (en) * | 2017-12-20 | 2018-06-12 | 李姗姗 | A kind of energy-saving LED illumination adjuster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |