CN106027019A - Light control switch based on solar battery - Google Patents
Light control switch based on solar battery Download PDFInfo
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- CN106027019A CN106027019A CN201610411264.5A CN201610411264A CN106027019A CN 106027019 A CN106027019 A CN 106027019A CN 201610411264 A CN201610411264 A CN 201610411264A CN 106027019 A CN106027019 A CN 106027019A
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- voltage comparator
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- 238000005286 illumination Methods 0.000 claims abstract description 26
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052980 cadmium sulfide Inorganic materials 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 9
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 229910001887 tin oxide Inorganic materials 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052714 tellurium Inorganic materials 0.000 claims description 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910004613 CdTe Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001932 seasonal effect Effects 0.000 description 3
- YKYOUMDCQGMQQO-UHFFFAOYSA-L cadmium dichloride Chemical compound Cl[Cd]Cl YKYOUMDCQGMQQO-UHFFFAOYSA-L 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- NPNMHHNXCILFEF-UHFFFAOYSA-N [F].[Sn]=O Chemical compound [F].[Sn]=O NPNMHHNXCILFEF-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- VXAPDXVBDZRZKP-UHFFFAOYSA-N nitric acid phosphoric acid Chemical compound O[N+]([O-])=O.OP(O)(O)=O VXAPDXVBDZRZKP-UHFFFAOYSA-N 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- 238000005092 sublimation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/06—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier
- H01L31/072—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type
- H01L31/073—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type comprising only AIIBVI compound semiconductors, e.g. CdS/CdTe solar cells
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K2017/9455—Proximity switches constructional details
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/543—Solar cells from Group II-VI materials
Abstract
The invention provides a light control switch based on a solar battery. The light control switch comprises the solar battery, a voltage comparison circuit and a switching circuit; the traditional light sensitive resistor is replaced by the solar battery, which is high in photoelectric conversion efficiency and low in cost; the disadvantages of being low in sensitivity, poor in stability and the like in the light control switch of the light sensitive resistor are avoided; a cadmium telluride solar battery is very sensitive for illumination intensity, such that the switching sensitivity is improved; it is unnecessary to extra provide working electric energy; the light control switch is energy-saving and environment-friendly; the light control switch is steady in different temperature environments; the stability of the light control switch is kept; disadvantages of the light control switch of the light sensitive resistor are made up; the universality of an automatic switching device is improved; the light control switch can be used in different seasons in different areas and same areas in our country; it is unnecessary to re-debug due to the reasons, such as environmental temperature change; the light control switch is simple and convenient to use; large-scale application of the light control switch is carried out easily; unnecessary waste is reduced; and energy is saved.
Description
Technical field
The present invention relates to light-operated switch technical field, a kind of light-operated switch based on solar cell,
Can be applicable to street lamp, corridor lamp, Landscape Lamp illuminator.
Background technology
In daily life, some public places such as road, corridor, sight spot are assembled with a lot of illuminating lamp,
These illuminating lamps are usually the contactor of Artificial Control lamp.Therefore, usually occur to daytime forgetting
Turn off the light or forget situation about turning on light to evening, causing great energy waste and human resources
Waste.Light-operated switch can solve this problem well.The when of having light by day, light-operated switch
According to the intensity of natural light, when the intensity of light reaches certain setting numerical value, it is automatically switched off illuminating lamp；
When the intensity of light is less than when setting numerical value, automatically turn on illuminating lamp.Therefore, automatically switch, save energy
While source, save unnecessary human resources and put into.
The light-operated switch of existing market, is substantially the Primary Component using photoconductive resistance as optical detection.
Photosensitive resistance value changes along with the change of light intensity.The conventional making material of photoconductive resistance is cadmium sulfide,
When having illumination, resistance only has 5～10k Ω, and during unglazed photograph, resistance is up to M Ω rank.Light-controlled switching circuit
According to the resistance value under different illumination intensity, compare with critical resistance value, contactor is carried out
Automatically control.But, the performance of photoconductive resistance is influenced by temperature relatively big, and sensitivity is the highest, impact
The light-operated switch correct judgement to actual light intensity.In order to improve sensitivity, sometimes need photoconductive resistance
Cooling uses, and increases the convenience that the cost of relevant device puts into and uses.Owing to external temperature becomes
The reason changed, uses the light-operated switch of photoconductive resistance, and identical product is in different regions or different season
Joint needs again to debug.
Summary of the invention
(1) to solve the technical problem that
In view of this, a kind of light-operated switch based on solar cell of offer is provided.
(2) technical scheme
The invention provides a kind of light-operated switch based on solar cell, for controlling opening of light-emitting component
Open and close, including: solar cell, voltage comparator circuit and on-off circuit, described solar cell is even
Connecing described voltage comparator circuit, described voltage comparator circuit connects described on-off circuit；Described voltage ratio
Relatively circuit provides one to compare voltage, by comparing the open-circuit voltage of solar cell and comparing voltage, to institute
State on-off circuit and send a control signal；Described on-off circuit, in response to described control signal, controls institute
State the opening and closing of light-emitting component.
Preferably, described voltage comparator circuit includes: voltage comparator, potentiometer R1 and first electricity
Resistance R2；Described voltage comparator is LM311 voltage comparator；One end of described potentiometer and first
One end of resistance connects the 3rd foot of described LM311 voltage comparator, and described LM311 voltage ratio is relatively
8th foot of device and the other end of potentiometer connect the positive pole of power supply, and the negative pole of power supply connects circuit ground,
The other end of the 1st foot, the 4th foot and first resistance of described LM311 voltage comparator connects circuit
Ground, the 5th foot of described LM311 voltage comparator and the 6th foot are connected, described LM311 voltage ratio
7th foot connecting valve circuit of relatively device；The positive terminal of described solar cell connects described LM311 electricity
2nd foot of pressure comparator, its negative pole end connects circuit ground.
Preferably, described on-off circuit includes: NPN transistor VT1 and the second resistance R3；Institute
The 7th foot stating LM311 voltage comparator connects the base of described NPN transistor by the second resistance
Pole, the colelctor electrode of described NPN transistor connects one end of described light-emitting component, described luminous unit
The other end of part connects the positive pole of power supply, and the emitter stage of described NPN transistor connects circuit ground.
Preferably, described solar cell is cadmium-Te solar battery.
Preferably, one is provided to compare voltage, described ratio between described potentiometer R1 and the first resistance R2
The critical open-circuit voltage of solar cell it is equal to compared with voltage.
Preferably, the situation of critical intensity of illumination, the open circuit of described solar cell it are more than in response to illumination
Voltage is more than comparing voltage；The situation of critical intensity of illumination, described solar cell it is less than in response to illumination
Open-circuit voltage less than comparing voltage.
Preferably, described LM311 voltage comparator sends control signal by the second resistance, passes through
Control conducting and the disconnection of NPN transistor, it is achieved the opening and closing of light-emitting component.
Preferably, described solar cell includes: glass substrate；It is formed at mixing in described glass substrate
Fluorine tin oxide layer；It is formed at the cadmium sulfide layer on described fluorine doped tin oxide layer and silver electrode；It is formed at institute
State the cadmium-telluride layer on cadmium sulfide layer；The copper being formed on described cadmium-telluride layer/gold back electrode.
Preferably, described NPN transistor model is 2SC9013, and the second resistance R3 resistance is
1.5kΩ。
Preferably, described potentiometer R1 resistance is 15k Ω, and the first resistance R2 resistance is 1k Ω, electricity
Source voltage is 6V, and comparing voltage is 0.6V.
(3) beneficial effect
From technique scheme it can be seen that the light-operated switch based on solar cell of the present invention have with
Lower beneficial effect:
(1) using high-photoelectric transformation efficiency, low cost solar cell as the core light of light-operated switch
Quick element, replaces traditional photosensitive resistance, it is to avoid photoconductive resistance light-operated switch sensitivity is low and stability
The shortcomings such as difference；
(2) cadmium-Te solar battery just can produce the open circuit of about 600mV under extremely low intensity of illumination
Voltage, the sensitiveest for intensity of illumination, improve switch sensitivity；
(3) cadmium-Te solar battery utilizes photovoltaic effect, and it is without being additionally provided work energy, joint
Can environmental protection；
(4) open-circuit voltage of cadmium-Te solar battery is stable in the environment of-40 DEG C to 40 DEG C, keeps
The stability of light-operated switch, compensate for the deficiency of photoconductive resistance light-operated switch；
(5) utilizing cadmium-Te solar battery as core light-sensitive element, circuit is simple, use and maintenance
It is convenient to change；
(6) light-operated switch based on solar cell enhances the universality of recloser, its
China's different geographical all can use with identical region Various Seasonal, owing to its temperature stability is high, first
After debugging, it is not necessary to again because the reasons such as variation of ambient temperature re-start debugging, easy to use, useful
In the large-scale application of light-operated switch, reduce unnecessary waste, save the energy.
Accompanying drawing explanation
Fig. 1 is the structure chart of the cadmium-Te solar battery of the embodiment of the present invention；
Fig. 2 is the cadmium-Te solar battery cross-sectional view under the ultramicroscope of the embodiment of the present invention；
Fig. 3 is the pass that the cadmium-Te solar battery open-circuit voltage of the embodiment of the present invention changes with intensity of illumination
System's figure；
Fig. 4 is the fundamental diagram of the light-operated switch using cadmium-Te solar battery of the embodiment of the present invention；
Fig. 5 is the light-controlled switching circuit figure using cadmium-Te solar battery of the embodiment of the present invention.
Symbol description
R1-potentiometer；R2-the first resistance；R3-the second resistance；D1-cadmium-Te solar battery；
VT1-NPN transistor npn npn；D2-light emitting diode；VCC-circuit anode；GND-circuit ground；
1st foot of 1-8-voltage comparator LM311 is to the 8th foot.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with concrete real
Execute example, and referring to the drawings, the present invention is described in more detail.
Embodiments provide a kind of light-operated switch based on solar cell, be used for controlling luminous unit
The opening and closing of part, including: cadmium-Te solar battery, voltage comparator circuit, on-off circuit and straight
Stream power supply；Wherein,
Voltage comparator circuit includes: voltage comparator LM311, potentiometer R1 and the first resistance R2,
One end of potentiometer R1 and one end of the first resistance R2 connect the 3rd foot of voltage comparator, voltage ratio
8th foot of relatively device and the other end connection circuit positive pole VCC of potentiometer R1, the 1st of voltage comparator
The other end connection circuit ground GND of foot, the 4th foot and the first resistance R2, the 5th foot of voltage comparator
Being connected with the 6th foot, the 7th foot of voltage comparator connects on-off circuit.
The positive terminal of cadmium-Te solar battery D1 connects the 2nd foot of voltage comparator, and its negative pole end is even
Connection circuit ground GND.
On-off circuit includes: NPN transistor VT1, the second resistance R3 and light-emitting component, voltage
7th foot of comparator connects the base stage of NPN transistor VT1, NPN by the second resistance R3
The colelctor electrode of transistor npn npn VT1 connects one end of light-emitting component, and the other end of light-emitting component connects circuit
The emitter stage of positive pole VCC, NPN transistor VT1 connects circuit ground GND.
The positive pole of DC source is connected with circuit anode VCC, the negative pole of DC source and circuit ground
GND is connected.
The embodiment of the present invention using cadmium-Te solar battery generation as the core devices of light-operated switch, cadmium telluride
Solar cell is to be grown, by the thin film of multiple layers of different materials, the light based on semiconductor PN prepared
Power conversion device.Fig. 1 is the structural representation of cadmium-Te solar battery, and it is five layer film structure,
Including: glass substrate Glass；The fluorine doped tin oxide layer FTO being formed in glass substrate；It is formed at
Cadmium sulfide layer CdS on fluorine doped tin oxide layer and silver Ag electrode；This silver Ag electrode is as cadmium telluride
The negative pole end of solar cell；The cadmium-telluride layer CdTe being formed on cadmium sulfide layer；It is formed at cadmium telluride
Copper on layer/gold Cu/Au back electrode, this copper/gold Cu/Au back electrode is as cadmium-Te solar battery
Positive terminal.Fig. 2 is the cross-sectional electron micrograph of cadmium-Te solar battery.
Cadmium-Te solar battery can be prepared by following technique: prepares glass substrate, in glass substrate
Upper formation fluorine doped F stannum oxide SnO2Layer FTO；Chemical bath method is used to form cadmium sulfide layer CdS；
Close spaced sublimation method is used to form cadmium-telluride layer CdTe；Cadmium-telluride layer is carried out successively Caddy (Cleary) CdCl2
Heat treatment and phosphoric acid Nitric acid etching, finally use thermal evaporation to prepare copper/gold back electrode.
When light irradiates cadmium-Te solar battery, cadmium-Te solar battery produces electric current and voltage, externally
Power supply.Fig. 3 is that cadmium-Te solar battery open-circuit voltage is along with intensity of illumination change curve, open-circuit voltage
Voltage between device two ends when being cadmium-Te solar battery external open circuit.From figure 3, it can be seen that tellurium
The open-circuit voltage of cadmium solar cell is the sensitiveest, in extremely low intensity of illumination along with intensity of illumination change
Time just can produce the open-circuit voltage of about 600mV, improve the sensitivity of light-operated switch.
The embodiment of the present invention utilizes cadmium-Te solar battery open-circuit voltage along with anti-to intensity of illumination change
Answer sensitive characteristic, choose Critical Light according to intensity I0, intensity of illumination shines intensity I more than Critical Light0Time from
Moving and turn off the light, intensity of illumination shines intensity I less than Critical Light0Shi Zidong turns on light.Critical Light is according to intensity I0Corresponding
Critical open-circuit voltage V0, by the control to CdTe battery open-circuit voltage, carry out the switch of control circuit.
Fig. 4 is the fundamental diagram of the embodiment of the present invention.Cadmium-Te solar battery, as optical receiver, produces
Open circuit voltage signal, control circuit judges battery open circuit voltage (VOC) whether more than critical open circuit electricity
Pressure V0, determine the switch of operating circuit, thus realize the opening and closing of lamp.Cadmium-Te solar battery critical
Open-circuit voltage V0Sufficiently stable, it is basically unchanged under the extreme living environment of-40 DEG C and 40 DEG C, so
By cadmium-Te solar battery as the core devices of light-operated switch, photoconductive resistance light can well be solved
The technical problem of the temperature instability of control switch.
Use LM311 voltage comparator in the present embodiment, it would however also be possible to employ other kinds of
Voltage comparator circuit, refers to offer one between Fig. 5, potentiometer R1 and the first resistance R2 the most electric
Pressure, this compares the voltage critical open-circuit voltage V equal to cadmium-Te solar battery0, when illumination is more than critical
Intensity of illumination I0Time, cadmium-Te solar battery positive terminal voltage is in high potential, and its open-circuit voltage is more than
Relatively voltage, voltage comparator output electronegative potential, NPN transistor VT1 is off,
Light-emitting component does not works, when illumination less than Critical Light according to intensity I0Time, cadmium-Te solar battery positive terminal electricity
Pressure is in electronegative potential, and its open-circuit voltage is less than comparing voltage, and voltage comparator exports high potential, NPN
Transistor npn npn VT1 is in the conduction state, and light-emitting component is lighted.
Wherein, this NPN transistor model is 2SC9013；Potentiometer R1 resistance is 15k Ω,
First resistance R2 resistance is 1k Ω, and the second resistance R3 resistance is 1.5k Ω, direct current power source voltage 6V,
The resistance of regulator potentiometer R1, comparing voltage is 0.6V, and cadmium-Te solar battery area is about
0.09-0.25cm2, but the present invention is not limited thereto, and those skilled in the art can according to circumstances select
Select parameter and the model of above-mentioned each element, as long as corresponding function can be realized.
In the present embodiment, light-emitting component can be light emitting diode D2, and light emitting diode D2 is just
Pole connects the base stage of NPN transistor VT1, and the negative pole of light emitting diode D2 connects circuit anode
VCC, but the present invention is not limited thereto, and light-operated switch can apply to the control of other light-emitting components.
The light-operated switch of the present embodiment needs to carry out on request circuit debugging before using.First open to light-operated
The cadmium-Te solar battery D1 closed irradiates the light of critical intensity of illumination；Then regulator potentiometer R1, makes
Light-emitting component is just lighted；Last fixed potential device R1, debugs complete.
Light-operated switch based on solar cell enhances the universality of recloser, and it is in China not
All can use with identical region Various Seasonal with region, owing to its temperature stability is high, first after debugging,
Without again because the reasons such as variation of ambient temperature re-start debugging, easy to use, it is of value to extensive
Application, reduces unnecessary waste, saves the energy.
It should be noted that in accompanying drawing or description text, the implementation not illustrating or describing,
It is form known to a person of ordinary skill in the art in art, is not described in detail.Additionally,
The above-mentioned definition to each element is not limited in various concrete structures, the shape mentioned in embodiment, this
It can be changed or replace, such as by field those of ordinary skill simply:
(1) voltage comparator circuit can also use other circuit structures, as long as can complete identical
Function；
(2) demonstration of the parameter comprising particular value can be provided herein, but these parameters are without definite etc.
In corresponding value, but analog value can be similar in acceptable error margin or design constraint；
(3) the direction term mentioned in embodiment, such as " on ", D score, "front", "rear", " left ",
" right " etc., are only the directions with reference to accompanying drawing, are not used for limiting the scope of the invention；
(4) above-described embodiment can based on design and the consideration of reliability, being mixed with each other collocation use or
Using with other embodiment mix and match, the technical characteristic in i.e. different embodiments can be with independent assortment shape
Become more embodiment.
In sum, the light-operated switch based on solar cell that the present invention provides, imitate with high opto-electronic conversion
Rate, low cost solar cell, as the core light-sensitive element of light-operated switch, replace traditional photosensitive resistance,
Avoid that photoconductive resistance light-operated switch sensitivity is low and the shortcoming such as poor stability；Cadmium-Te solar battery exists
The open-circuit voltage of about 600mV is just produced, for intensity of illumination very when of extremely low intensity of illumination
Sensitive, improve switch sensitivity；Cadmium-Te solar battery utilizes photovoltaic effect, and it is without additionally carrying
For work energy, energy-conserving and environment-protective；The open-circuit voltage of cadmium-Te solar battery is at the ring of-40 DEG C to 40 DEG C
Stablize under border, maintain the stability of light-operated switch, compensate for the deficiency of photoconductive resistance light-operated switch；
Utilizing cadmium-Te solar battery as core light-sensitive element, circuit is simple, and use and maintenance is changed convenient.
Light-operated switch based on solar cell enhances the universality of recloser, and it can in China not
It is used in conjunction with identical region Various Seasonal with region, due to the temperature stability of itself, adjusts first
After examination, it is not necessary to again because device is debugged by the reasons such as variation of ambient temperature again again, extremely letter
Just, it is of value to the large-scale application of light-operated switch, reduces unnecessary waste, save the energy.
Particular embodiments described above, is carried out the purpose of the present invention, technical scheme and beneficial effect
Further describe, be it should be understood that the foregoing is only the present invention specific embodiment and
, be not limited to the present invention, all within the spirit and principles in the present invention, that is done any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a light-operated switch based on solar cell, it is characterised in that be used for controlling light-emitting component
Opening and closing, including solar cell, voltage comparator circuit and on-off circuit, described sun electricity
Pond connects described voltage comparator circuit, and described voltage comparator circuit connects described on-off circuit；
Described voltage comparator circuit provides and one compares voltage, by compare solar cell open-circuit voltage and
Relatively voltage, sends a control signal to described on-off circuit；
Described on-off circuit, in response to described control signal, controls the opening and closing of described light-emitting component.
2. light-operated switch as claimed in claim 2, it is characterised in that described voltage comparator circuit
Including: voltage comparator, potentiometer (R1) and the first resistance (R2)；
Described voltage comparator is LM311 voltage comparator；
One end of described potentiometer and one end of the first resistance connect described LM311 voltage comparator
3rd foot, the 8th foot of described LM311 voltage comparator and the other end of potentiometer connect power supply
Positive pole, the negative pole of power supply connects circuit ground, the 1st foot of described LM311 voltage comparator, the 4th
The other end of foot and the first resistance connects circuit ground, the 5th foot of described LM311 voltage comparator and
6th foot is connected, the 7th foot connecting valve circuit of described LM311 voltage comparator；
The positive terminal of described solar cell connects the 2nd foot of described LM311 voltage comparator, and it is born
Extreme connection circuit ground.
3. light-operated switch as claimed in claim 2, it is characterised in that described on-off circuit includes:
NPN transistor (VT1) and the second resistance (R3)；
7th foot of described LM311 voltage comparator connects described NPN type crystal by the second resistance
The base stage of pipe, the colelctor electrode of described NPN transistor connects one end of described light-emitting component, described
The other end of light-emitting component connects the positive pole of power supply, and the emitter stage of described NPN transistor connects electricity
Lu Di.
4. light-operated switch as claimed in claim 1, it is characterised in that described solar cell is tellurium
Cadmium solar cell.
5. light-operated switch as claimed in claim 3, it is characterised in that described potentiometer (R1)
With first provide between resistance (R2) one to compare voltage, described compare voltage facing equal to solar cell
Boundary's open-circuit voltage.
6. light-operated switch as claimed in claim 5, it is characterised in that in response to illumination more than facing
The situation of boundary's intensity of illumination, the open-circuit voltage of described solar cell is more than comparing voltage；
Be less than the situation of critical intensity of illumination in response to illumination, the open-circuit voltage of described solar cell is less than
Relatively voltage.
7. light-operated switch as claimed in claim 6, it is characterised in that described LM311 voltage ratio
Relatively device sends control signal by the second resistance, by controlling conducting and the disconnection of NPN transistor,
Realize the opening and closing of light-emitting component.
8. light-operated switch as claimed in claim 1, it is characterised in that described solar cell includes:
Glass substrate；The fluorine doped tin oxide layer being formed in described glass substrate；It is formed at the oxidation of described fluorine doped
Cadmium sulfide layer in tin layers and silver electrode；It is formed at the cadmium-telluride layer on described cadmium sulfide layer；It is formed at
Copper on described cadmium-telluride layer/gold back electrode.
9. light-operated switch as claimed in claim 3, it is characterised in that described NPN transistor
Model is 2SC9013, and the second resistance R3 resistance is 1.5k Ω.
10. light-operated switch as claimed in claim 9, it is characterised in that described potentiometer R1 hinders
Value is 15k Ω, and the first resistance R2 resistance is 1k Ω, and supply voltage is 6V, and comparing voltage is 0.6V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610411264.5A CN106027019A (en) | 2016-06-06 | 2016-06-06 | Light control switch based on solar battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610411264.5A CN106027019A (en) | 2016-06-06 | 2016-06-06 | Light control switch based on solar battery |
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| CN1738506A (en) * | 2005-04-19 | 2006-02-22 | 杨青山 | Novel lighting method and device |
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| CN103368550A (en) * | 2013-07-14 | 2013-10-23 | 周芸 | Light-operated switch manufactured through voltage comparator |
| CN105576049A (en) * | 2015-12-30 | 2016-05-11 | 中国科学技术大学 | Back contact structure of CdTe thin film solar cell, preparation method of back contact structure and CdTe thin film solar cell |
| CN205847219U (en) * | 2016-06-06 | 2016-12-28 | 中国科学技术大学 | A kind of light-operated switch based on solar cell |
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- 2016-06-06 CN CN201610411264.5A patent/CN106027019A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1738506A (en) * | 2005-04-19 | 2006-02-22 | 杨青山 | Novel lighting method and device |
| JP2010092812A (en) * | 2008-10-10 | 2010-04-22 | Dx Antenna Co Ltd | Solar cell type high brightness led sensor light |
| CN102779864A (en) * | 2012-07-19 | 2012-11-14 | 中山大学 | Cadmium telluride thin-film battery and manufacturing method thereof |
| CN103368550A (en) * | 2013-07-14 | 2013-10-23 | 周芸 | Light-operated switch manufactured through voltage comparator |
| CN105576049A (en) * | 2015-12-30 | 2016-05-11 | 中国科学技术大学 | Back contact structure of CdTe thin film solar cell, preparation method of back contact structure and CdTe thin film solar cell |
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