CN201134955Y - LED luminous light driving controller with high stability - Google Patents
LED luminous light driving controller with high stability Download PDFInfo
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- CN201134955Y CN201134955Y CNU2007201383247U CN200720138324U CN201134955Y CN 201134955 Y CN201134955 Y CN 201134955Y CN U2007201383247 U CNU2007201383247 U CN U2007201383247U CN 200720138324 U CN200720138324 U CN 200720138324U CN 201134955 Y CN201134955 Y CN 201134955Y
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
An LED lamp drive controller with high stability belongs to the lighting technical field, which is used to solve the problems of LED lighting and power supply. The technical scheme is that the driver controller comprises a voltage stabilizing circuit and a current feedback circuit, wherein the voltage stabilizing circuit is formed by a voltage stabilizing integrated circuit, an inductance and a capacitance, wherein the voltage stabilizing integrated circuit adopts LM2596-ADJ, the current feedback circuit is formed by an operation amplifier, a sampling resistance, a coupling resistance and a feedback resistance, wherein the operation amplifier, the coupling resistance and the feedback resistance are connected into a proportional amplifier, wherein the output end of the proportional amplifier is connected with the four pins of the voltage stabilizing circuit, the sampling resistance is connected in series in an output end loop, and output signals on two ends of the output end loop are connected with the input end of the proportional amplifier. Compared with an LED lamp power supply in a traditional drive way, the utility model not only has high efficiency, saves energy, but also greatly prolongs the service life of the LED, which is especially suitable for places on which solar energy is used as LED energy.
Description
Technical field
The utility model relates to a kind of improved LED illuminating lamp driving governor, belongs to lighting technical field.
Background technology
The LED illuminating lamp more and more is subjected to people's favor because of having luminous efficiency height, long service life, environmental protection, photochromic advantage such as soft, is expected to substitute the leading position of conventional incandescent, fluorescent lamp, Halogen lamp LED, becomes the main product of illuminating industry.At present, it is power supply that the LED illuminating lamp generally all adopts storage battery, because the terminal voltage of storage battery constantly changes in power supply process, and LED is to voltage responsive (the small size rising of voltage may cause the rapid increase of electric current) especially, cause LED lamp efficient to reduce, shorten useful life.
For addressing the above problem, someone has designed the illuminating lamp that uses constant-current controller or constant-voltage controller driving LED, and the advantage of constant voltage driving is the efficient height, and loss is little, shortcoming is the discreteness that is difficult to adapt to the LED rated voltage, has influenced the useful life of LED to a certain extent.The advantage of constant-current driving is to make LED steady operation under rated current, can guarantee the useful life of LED, and shortcoming is that loss is big, and efficient is low.If can design a kind of LED illuminating lamp that has both above-mentioned two kinds of lamp advantages, must accelerate the promotion and application of LED illuminating lamp.
Summary of the invention
The utility model be used to overcome prior art defective, a kind of LED illuminating lamp driving governor with high stability is provided.
The alleged problem of the utility model realizes with following technical proposals:
A kind of LED illuminating lamp driving governor with high stability, by voltage stabilizing circuit, current feedback circuit is formed, described voltage stabilizing circuit is by integrated regulator WY, inductance L and capacitor C 2 are formed, integrated regulator WY adopts LM2596-ADJ, it is 1 years old, 3 pins connect accumulator positive respectively, negative pole, the output voltage of 2 pin meets load LED through inductance L, capacitor C 2 is parallel to output, described current feedback circuit is by operational amplifier F, sample resistance R4, coupling resistance R5 and feedback resistance R6 form, operational amplifier F and coupling resistance R5 and feedback resistance R6 are connected into proportional amplifier, 4 pin of its output termination integrated regulator WY, described sample resistance R4 is series in the output loop, and the output signal at its two ends connects the input of proportional amplifier.
Above-mentioned LED illuminating lamp driving governor with high stability; set up under-voltage protecting circuit; described under-voltage protecting circuit is made up of triode T, voltage-stabiliser tube D1, upper offset resistance R 1, below-center offset resistance R 2 and pull-up resistor R3; be connected into switching circuit by triode T, upper offset resistance R 1, below-center offset resistance R 2 and with voltage-stabiliser tube D1 that upper offset resistance R 1 is connected in series; the switching signal of triode T collector electrode output connects 5 pin of integrated regulator WY, and 5 pin of integrated regulator WY connect pull-up resistor R3.
The utility model utilizes integrated regulator WY to provide the voltage of regulating through copped wave to LED, and inductance L and capacitor C 2 strobe, thereby this device has constant voltage driving efficient height, the advantage that loss is little.The utility model utilizes the output voltage of current feedback circuit control integrated regulator WY, make the current constant in the LED current supply circuit, thereby this device has the advantage of constant-current driving stable working state again.Under-voltage protecting circuit is used for storage battery is carried out under-voltage protection, prevents that storage battery is because of overdischarge reduction of service life.Use traditional power supply to compare with existing LED lamp, the utility model is the efficient height not only, saves the energy, and prolonged the useful life of LED greatly, is specially adapted to utilize solar energy to make the occasion of the LED energy.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is an electrical schematic diagram of the present utility model;
Each label is among the figure: B, storage battery, and C1, C2, electric capacity, R1～R6, resistance, WY, integrated regulator, F, operational amplifier, LED, light-emitting diode, D1, voltage-stabiliser tube, are imitated special based diode at D2.
Embodiment
Current feedback circuit is used to set the output current of LM2596-ADJ, for reducing loss, R4 generally obtains very little, R4 gets 0.1 ohm in Fig. 1, R2 gets 1k ohm, feedback resistance R3 sets according to built-in reference voltage and the voltage on the R1 of LM2596-ADJ, to determine the multiplication factor of proportional amplifier.
The parameter of voltage-stabiliser tube D1 is set according to the under-voltage protection value of storage battery, and the voltage of voltage-stabiliser tube is 10V in the utility model.
During the utility model work, LM2596-ADJ carries out copped wave to the direct voltage of importing and regulates according to the main circuit parameter of setting, and making voltage of its output expectation is the LED electric, and the electric current of electric current for setting in advance of LED flow through in final realization.When for a certain reason, when output voltage was higher than rated voltage, the electric current that flows through LED can increase, surpass the current value of setting in advance, at this moment, can surpass the specified built-in reference voltage of LM2596-ADJ, thereby make the duty ratio of LM2596-ADJ regulating impulse by the feedback voltage that obtains after the LM324 amplification, direction to step-down is regulated, the voltage of output is reduced, and then the electric current that flows through LED is reduced, when reaching rated current, the voltage that LM2596-ADJ output is constant enters stable state.When the electric current that flows through LED was lower than rated current, LM2596-ADJ can regulate to opposite direction, and Principles of Regulation are identical.
When battery tension was higher than the protection magnitude of voltage of setting, voltage-stabiliser tube D1 work had electric current to flow through on resistance R 1 and R2; therefore on resistance R 2, produce voltage drop; thereby the conducting of control triode switch, 5 pin that make LM2596-ADJ are low level, the LM2596-ADJ operate as normal.When battery tension is lower than the voltage of voltage-stabiliser tube, on resistance R 1 and R2, there is not electric current to flow through, triode turn-offs.LM2596-ADJ quits work, thus the protection storage battery.
Claims (2)
1, a kind of LED illuminating lamp driving governor with high stability, it is characterized in that, it is by voltage stabilizing circuit, current feedback circuit and LED form, described voltage stabilizing circuit is by integrated regulator WY, inductance L and capacitor C 2 are formed, integrated regulator WY adopts LM2596-ADJ, it is 1 years old, 3 pins connect accumulator positive respectively, negative pole, the output voltage of 2 pin meets load LED through inductance L, capacitor C 2 is parallel to output, described current feedback circuit is by operational amplifier F, sample resistance R4, coupling resistance R5 and feed back electric R6 and form, operational amplifier F and electric R5 of coupling and feedback resistance R6 are connected into proportional amplifier, 4 pin of its output termination integrated regulator WY, described sample resistance R4 is series in the output loop, and the output signal at its two ends connects the input of proportional amplifier.
2, according to the described LED illuminating lamp driving governor of claim 1 with high stability; it is characterized in that; set up under-voltage protecting circuit; described under-voltage protecting circuit is made up of triode T, voltage-stabiliser tube D1, upper offset resistance R 1, below-center offset resistance R 2 and pull-up resistor R3; be connected into switching circuit by triode T, upper offset resistance R 1, below-center offset resistance R 2 and with voltage-stabiliser tube D1 that upper offset resistance R 1 is connected in series; the switching signal of triode T collector electrode output connects 5 pin of integrated regulator WY, and 5 pin of integrated regulator WY connect pull-up resistor R3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201383247U CN201134955Y (en) | 2007-12-21 | 2007-12-21 | LED luminous light driving controller with high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201383247U CN201134955Y (en) | 2007-12-21 | 2007-12-21 | LED luminous light driving controller with high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134955Y true CN201134955Y (en) | 2008-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201383247U Expired - Fee Related CN201134955Y (en) | 2007-12-21 | 2007-12-21 | LED luminous light driving controller with high stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134955Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521971A (en) * | 2009-03-31 | 2009-09-02 | 上海小糸车灯有限公司 | Linear constant current drive mode of LED signal lamp for automobile |
| CN106900118A (en) * | 2013-09-29 | 2017-06-27 | 赛尔富电子有限公司 | A kind of under-voltage protecting circuit for LED lamp |
| WO2018032552A1 (en) * | 2016-08-19 | 2018-02-22 | 唐晓云 | Microcomputer-controlled led color lamp with intelligent light switching |
-
2007
- 2007-12-21 CN CNU2007201383247U patent/CN201134955Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521971A (en) * | 2009-03-31 | 2009-09-02 | 上海小糸车灯有限公司 | Linear constant current drive mode of LED signal lamp for automobile |
| CN106900118A (en) * | 2013-09-29 | 2017-06-27 | 赛尔富电子有限公司 | A kind of under-voltage protecting circuit for LED lamp |
| WO2018032552A1 (en) * | 2016-08-19 | 2018-02-22 | 唐晓云 | Microcomputer-controlled led color lamp with intelligent light switching |
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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: 20081015 Termination date: 20100121 |