CN201426200Y - Controller and sbrightness adjustable solar lamp comprising same - Google Patents
Controller and sbrightness adjustable solar lamp comprising same Download PDFInfo
- Publication number
- CN201426200Y CN201426200Y CN2009203013864U CN200920301386U CN201426200Y CN 201426200 Y CN201426200 Y CN 201426200Y CN 2009203013864 U CN2009203013864 U CN 2009203013864U CN 200920301386 U CN200920301386 U CN 200920301386U CN 201426200 Y CN201426200 Y CN 201426200Y
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- light source
- brightness
- generating unit
- controller
- signal generating
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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
Abstract
The utility model relates to a controller applied in the control to solar lamps which have LED light sources. The controller comprises a switch module for controlling the opening and closure of an LEDlight source, and further consists of a brightness regulating module which is connected with the switch module for regulating the brightness of the LED light source. The controller can regulate the lighting brightness of the solar lamps after being applied on the solar lamps, can lower the brightness of the solar lamps according to the requirements when no needing high brightness lighting, namelyreduces the power consumption of the light source, thereby saving electric energy stored in a battery, and facilitating the solar lamps to prolong the lighting time or reduce the power of a solar cell and the capacity of the battery for lowering the production cost of the solar lamps.
Description
Technical field
The utility model relates to a kind of controller and comprises the solar energy lamp of this controller, relates in particular to a kind of controller and comprises the solar energy lamp of the adjustable brightness of this controller.
Background technology
Countries in the world are dense day by day to the interest of the regenerative resource that comprises solar energy, and solar photovoltaic system can be that new vitality is injected in world energy sources industry.Various countries turn to attentiveness this brand-new energy field one after another and strengthen investment research and development solar energy generation technology and product.The solar energy utilization will become one of most popular industry in this century.Simultaneous LED technology rapid development, the LED illumination has obtained fine application in the solar lighting field, becomes the optimal light source of solar lighting.
Existing solar lamp controller can be controlled the opening and closing of the light source of solar energy lamp, but can't be according to the preset program adjustment with the brightness of LED as light source.The drawback of this method is to change light-source brightness according to the actual needs, when not needing highlight illumination, can't save the electric energy that is stored in the storage battery, just shorten lighting hours or increased solar cell power and battery capacity, thereby increased the production cost of solar energy lamp.
The utility model content
The utility model can not change light-source brightness according to the actual needs at existing solar energy lamp, can't save the electric energy that is stored in the storage battery, thereby increased the deficiency of the production cost of solar energy lamp, a kind of controller is provided and comprises the light fixture of the adjustable brightness type of this controller.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of controller, be applied to control to the solar energy lamp that contains led light source, comprise switch module and brightness regulation module, described switch module links to each other with the brightness regulation module, described switch module is used to control the opening and closing of described led light source, and described brightness regulation module is used to regulate the brightness of described led light source.
The beneficial effects of the utility model are: controller of the present utility model is after being applied to solar energy lamp, can regulate the brightness of illumination of solar energy lamp, when not needing highlight illumination, can reduce the brightness of solar energy lamp, promptly reduce the power consumption of light source, thereby save the electric energy that is stored in the storage battery, make solar energy lamp can prolong lighting hours or reduction solar cell power and battery capacity to reduce the production cost of solar energy lamp.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described brightness regulation module is made up of with the led driver that links to each other with this driving signal generating unit driving signal generating unit, wherein:
Described driving signal generating unit is used to export variable voltage signal and gives described led driver;
Described led driver is used for the constant current that output current value is directly proportional with the magnitude of voltage of described variable voltage signal under the control of described variable voltage signal and gives described led light source.
When the beneficial effect that adopts above-mentioned further scheme was the bigger voltage signal of described driving signal generating unit output, led driver will be exported bigger electric current, and then the brightness of led light source is just bigger, otherwise then just in time opposite.
Further, described brightness regulation module is made up of with the led driver that links to each other with this driving signal generating unit driving signal generating unit, wherein:
Described driving signal generating unit is used to export variable voltage signal and gives described led driver;
Described led driver is used for the constant current that the magnitude of voltage of output current value and described variable voltage signal is inversely proportional under the control of described variable voltage signal and gives described led light source.
When the beneficial effect that adopts above-mentioned further scheme was the bigger voltage signal of described driving signal generating unit output, led driver will be exported less current, and then the brightness of led light source is just less, otherwise then just in time opposite.
Further, described driving signal generating unit comprises integrating circuit and the operational amplifier IC2 that microprocessor MCU, resistance R 1 and capacitor C 2 are formed, one of resistance R 1 is connected to the pulse width modulation (PWM) output of microprocessor MCU, the other end is connected to an end of capacitor C 2, the other end ground connection of capacitor C 2, the in-phase input end of operational amplifier IC2 is connected to the junction point of resistance R 1 and capacitor C 2, inverting input links to each other with output, and the output of operational amplifier IC2 is the output of described driving signal generating unit.
The beneficial effect that adopts above-mentioned further scheme is by the voltage signal of driving signal generating unit output, just can regulate the brightness of led light source.
Further, led driver is the DC/DC converter that is operated under the pulse width modulation (PWM) mode.
The utility model also provides a kind of solar energy lamp of adjustable brightness, comprise led light source, solar cell, storage battery and described controller, described solar cell is connected with storage battery, and described solar cell is to charge in batteries, and storage battery is controller and light source power supply.
Description of drawings
Fig. 1 is the structural representation sketch of the solar energy lamp of the utility model adjustable brightness;
Fig. 2 is the structural representation detail drawing of the solar energy lamp of the utility model adjustable brightness.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
Fig. 1 is the structural representation sketch of the solar energy lamp of the utility model adjustable brightness.As shown in Figure 1, described solar energy lamp comprises controller 10, led light source 20, storage battery 30 and solar cell 40.Described controller 10 comprises brightness regulation module 101 and switch module 102, and described switch module 102 links to each other with brightness regulation module 101.Described brightness regulation module 101 is used to regulate the brightness of described led light source 20 brightness, described brightness regulation module is to regulate continuously to the brightness adjustment approach of described led light source, and promptly the power of the brightness of led light source and consumption can be adjustable continuously in 0% to 100% scope.Described brightness regulation module 101 comprises driving signal generating unit 1011 and led driver 1012, described driving signal generating unit 1011, be used to export variable voltage signal be used for that under the control of described variable voltage signal output current value is directly proportional with the magnitude of voltage of described variable voltage signal for described led driver 1012, described led driver 1012 or the constant current of inverse ratio to described led light source 20.Described driving signal generating unit 1011 also comprises timer, can be according to the different magnitudes of voltage of regulating described variable voltage signal automatically of time period, in needs, as before midnight darkness more-person-more-vehicle time, improve the brightness of led light source, such as 100% brightness, so that good illumination to be provided, and section At All Other Times, in the time of as people's car rareness after midnight, then reduce the brightness of led light source,, can save the consumption of the electric power of storage battery such as 33% brightness.Described driving signal generating unit 1011 also comprises arithmetic unit, can regulate the magnitude of voltage of described variable voltage signal according to the electric weight size of the storage battery stored of described solar energy lamp automatically, the magnitude of voltage of described variable voltage signal is directly proportional with the charge value of described storage battery stored electric weight, when the electric weight in the storage battery is sufficient, can adjust led light source automatically and send high brightness, and electric weight can reduce brightness when not enough automatically, preserves the electric weight in the storage battery.
Fig. 2 is the structural representation detail drawing of the solar energy lamp of the utility model adjustable brightness.As shown in Figure 2, described driving signal generating unit 1011 comprises integrating circuit and the operational amplifier IC2 that microprocessor MCU, resistance R 1 and capacitor C 2 are formed, one of resistance R 1 is connected to the pulse width modulation (PWM) output of microprocessor MCU, the other end is connected to an end of capacitor C 2, the other end ground connection of capacitor C 2, the in-phase input end of operational amplifier IC2 is connected to the junction point of resistance R 1 and capacitor C 2, inverting input links to each other with output, and the output of operational amplifier IC2 is the output of described driving signal generating unit.In the present embodiment, the resistance of resistance R 1 is 10Kohm, and the capacity of capacitor C 2 is 104uF, and the model of operational amplifier IC2 is LM358.
Described led driver 1012 comprises controller IC 1, inductance L 1, diode D1, capacitor C 3 resistance R 2, resistance R 3, resistance R 4 and capacitor C 1.Controller IC 1 is UC3842 in the present embodiment, the resistance of resistance R 2 is 5Kohm, the resistance of resistance R 3 is 150Kohm, the resistance of resistance R 4 is 1ohm, and the capacity of capacitor C 1 is 103uF, and the capacity of capacitor C 3 is 200uF, the induction reactance of inductance L 1 is 10mH, the model of diode D1 is IN5821, and switch module 102 is a triode, and its model is IRFZ48.When 5 pin of controller IC 1 were 1, electric current and storage power were flow through in switch module 102 conductings in the inductance L 1, and when the pressure drop of inductive current on R4 equaled comparator preset threshold voltage, IC1 resetted, and promptly 5 pin are 0.This moment, switch module 102 ended, and energy stored is charged to C3 simultaneously by Schottky diode D1 supply load in the inductance L 1.When load voltage will fall, capacitor C 3 discharges, at this moment output can obtain stable voltage.This voltage can drive led light sources 20 such as D2, D3.
IC1 inside contain complete PWM controller, the pulsewidth of the PWM of IC1 is be subjected to 2 pin voltage-controlled.When the pulsewidth of PWM changed, the duty ratio of 5 pin output also changed at any time, and adjusted the electric current that flows through led light source 20 by the time that switch module 102 changes inductance L 1 energy storage and discharge.
Utilize PWM output function and R1, C2, the IC2 of microprocessor MCU to constitute a D/A converter.R1 and C2 have formed an integrating circuit, and IC2 is an operational amplifier, is used for impedance matching.When the PWM of microprocessor MCU output duty of ratio changed, operational amplifier IC2 will export corresponding variable voltage.When being the PWM output duty of ratio step-down of microprocessor MCU, the proportional reduction of the output voltage of operational amplifier IC2.Otherwise then raise.Controller IC 1 also can be ES3589 in the present embodiment, described led driver just can be under the control of described variable voltage signal the constant current that is inversely proportional to of the magnitude of voltage of output current value and described variable voltage signal give described led light source.
The variable voltage of operational amplifier IC2 output is directly being controlled the voltage of 2 pin of IC1, is just controlling the pulsewidth of the PWM of IC1.By above-mentioned principle analysis, as can be seen, the electric current that flows through led light source 20 is subjected to microprocessor MCU control.Microprocessor MCU can follow procedure changes the electric current of led light source 20, promptly changes the brightness of led light source 20.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. controller, be applied to control to the solar energy lamp that contains led light source, comprise switch module, be used to control the opening and closing of described led light source, it is characterized in that, also comprise the brightness regulation module, be used to regulate the brightness of described led light source, described switch module links to each other with the brightness regulation module.
2. controller according to claim 1 is characterized in that, described brightness regulation module is made up of with the led driver that links to each other with this driving signal generating unit driving signal generating unit, wherein:
Described driving signal generating unit is used to export variable voltage signal and gives described led driver;
Described led driver is used for the constant current that output current value is directly proportional with the magnitude of voltage of described variable voltage signal under the control of described variable voltage signal and gives described led light source.
3. controller according to claim 1 is characterized in that, described brightness regulation module is made up of with the led driver that links to each other with this driving signal generating unit driving signal generating unit, wherein:
Described driving signal generating unit is used to export variable voltage signal and gives described led driver;
Described led driver is used for the constant current that the magnitude of voltage of output current value and described variable voltage signal is inversely proportional under the control of described variable voltage signal and gives described led light source.
4. according to claim 2 or 3 described controllers, it is characterized in that, described driving signal generating unit comprises microprocessor MCU, the integrating circuit that resistance R 1 and capacitor C 2 are formed, and operational amplifier IC2, one of resistance R 1 is connected to the pulse width modulation (PWM) output of microprocessor MCU, the other end is connected to an end of capacitor C 2, the other end ground connection of capacitor C 2, the in-phase input end of operational amplifier IC2 is connected to the junction point of resistance R 1 and capacitor C 2, inverting input links to each other with output, and the output of operational amplifier IC2 is the output of described driving signal generating unit.
5. according to claim 2 or 3 described controllers, it is characterized in that described led driver is the DC/DC converter that is operated under the pulse width modulation (PWM) mode.
6. the solar energy lamp of an adjustable brightness, comprise each described controller of led light source, solar cell, storage battery and claim 1 to 8, described solar cell is connected with storage battery, and described solar cell is to charge in batteries, and storage battery is controller and light source power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203013864U CN201426200Y (en) | 2008-07-30 | 2009-03-18 | Controller and sbrightness adjustable solar lamp comprising same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820132954.8 | 2008-07-30 | ||
| CN200820132954 | 2008-07-30 | ||
| CN2009203013864U CN201426200Y (en) | 2008-07-30 | 2009-03-18 | Controller and sbrightness adjustable solar lamp comprising same |
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| Publication Number | Publication Date |
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| CN201426200Y true CN201426200Y (en) | 2010-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009203013864U Expired - Fee Related CN201426200Y (en) | 2008-07-30 | 2009-03-18 | Controller and sbrightness adjustable solar lamp comprising same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723997A (en) * | 2012-05-30 | 2012-10-10 | 深圳光启创新技术有限公司 | Light signal emission terminal |
| CN103327688A (en) * | 2013-05-25 | 2013-09-25 | 河南科新光电科技有限公司 | Control structure for prolonging lighting time of solar energy and/or wind energy street lamps |
| CN108494248A (en) * | 2018-04-08 | 2018-09-04 | 上海战诚电子科技股份有限公司 | A kind of circuit of adjustable constant current source current |
-
2009
- 2009-03-18 CN CN2009203013864U patent/CN201426200Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723997A (en) * | 2012-05-30 | 2012-10-10 | 深圳光启创新技术有限公司 | Light signal emission terminal |
| CN103327688A (en) * | 2013-05-25 | 2013-09-25 | 河南科新光电科技有限公司 | Control structure for prolonging lighting time of solar energy and/or wind energy street lamps |
| CN108494248A (en) * | 2018-04-08 | 2018-09-04 | 上海战诚电子科技股份有限公司 | A kind of circuit of adjustable constant current source current |
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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: 20100317 Termination date: 20120318 |