CN108601156A - A kind of exchange 380V drives LED street lamp with an automatic light meter - Google Patents
A kind of exchange 380V drives LED street lamp with an automatic light meter Download PDFInfo
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- CN108601156A CN108601156A CN201810640748.6A CN201810640748A CN108601156A CN 108601156 A CN108601156 A CN 108601156A CN 201810640748 A CN201810640748 A CN 201810640748A CN 108601156 A CN108601156 A CN 108601156A
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- 230000010349 pulsation Effects 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of exchange 380V drives LED street lamp with an automatic light meter, discloses a kind of using line voltage 380VAC drivings, by rectifier rectification and output, then by power factor correction circuit, it is made to export DC voltage about 400V, supply LED street lamp is working power.The LED chip of the luminescent screen circuit of LED street lamp reduces the excessive defect of total working electric current that series and parallel wiring is brought using series wiring all the way.
Description
Technical field
The present invention relates to a kind of exchange 380V to drive LED street lamp with an automatic light meter.
Background technology
Current LED street lamp is all that series and parallel phase is used in the wiring of LED lighting board using phase voltage 220V drivings
In conjunction with the work total current magnitude of LED street lamp is relatively large, and most of LED street lamp lacks automatic dimming function, Ben Ren
The patent 201210200175.8 being authorized for 2016 has automatic dimming function, but working power is that phase voltage 220VAC drives
Dynamic, defect is：When the power of LED street lamp is more than 100W or more, the wiring of luminescent screen cannot use series connection all the way to connect
It connects, and is unavoidably connected using series and parallel structure, and the work total current of LED street lamp will be made to increase.
Invention content
A kind of exchange 380V drives LED street lamp with an automatic light meter, disclose it is a kind of using line voltage 380VAC drivings, by whole
Device rectification and output are flowed, then by power factor correction circuit, it is made to export DC voltage about 400V, supply LED street lamp is work electricity
Source.The LED chip of the luminescent screen circuit of LED street lamp reduces the total working that series and parallel wiring is brought using series wiring all the way
The excessive defect of electric current.
A kind of exchange 380V drives LED street lamp with an automatic light meter, circuit composition by ac filter circuit, rectification circuit,
Power factor correction circuit, timer circuit, pulse-width modulation circuit and LED lighting board circuit composition.The mutually interconnection of each component of circuit
Connecing is：The input terminal of ac filter circuit is connected with the line voltage of alternating current, and voltage is exchange 380V；The output of ac filter circuit
End is connected with bridge rectifier input terminal；The rectifier, output quantity are the direct currents of pulsation, and voltage is sine wave, and
Current distortion is serious, and power factor is very low, for this purpose, introducing power imitates positive circuit, input terminal is connect with rectifier output end, defeated
Outlet is connect with timer circuit, pulse-width modulation circuit, LED lighting board circuit, after power factor correction circuit, can power because
Number is increased to 0.90 or more；The timer, the relay that output end is connected control the dutyfactor value of pulse-width modulation circuit
Output, when the normally opened contact J1 of relay is closed, pulse-width modulation circuit output duty cycle value is big, and LED street lamp is operated in vehement bright
Operating mode in；When the normally-closed contact J2 of relay is closed, the dutyfactor value of pulse-width modulation circuit output is small, LED street lamp work
In dark bright operating mode, to realize automatic dimming function；The field-effect tube T2 of pulse-width modulation circuit output end, directly controls
The operating current of LED, the resistance R3 being in series with LED is current-limiting resistance, selects suitable R3 values, you can meet required LED
The operating current of street lamp；The LED lighting board circuit, using series wiring mode all the way, concatenated LED goes here and there quantity according to street lamp
Power decision.
Description of the drawings
Fig. 1 is the circuit diagram that a kind of exchange 380V drives LED street lamp with an automatic light meter.
Specific implementation mode
As shown in Figure 1, ac filter circuit is made of C1, C2, L1, L2, L3, wherein C1, C2 is safety capacitor, L1,
L2 is differential mode inductors, and L3 is common-mode inductor, and the various interference waves for exchanging 380V inputs are filtered out, line voltage 380VAC is improved
The sine-wave power quality of input.
As shown in Figure 1, rectification circuit IC1 is bridge full wave rectifier, the rectifier of 3A capacity is selected, input power is
380V is exchanged, the direct current for pulsation is exported, by the power factor correction circuit that D1, D2, D3, C3, C4 and R1 are formed, can effectively be changed
Power factor is increased to 0.90 or more by kind harmonic distortion and power factor, and output stable DC voltage is about 400V.
As shown in Figure 1, IC2 and peripheral cell form timer circuit, IC2 is the IC chip of CD4060, on C8, R5 composition
Electric self-resetting circuit, when IC2 obtains power supply moment, C8, R5 input a positive pulse voltage signal to 12 feet of IC2, act in IC2
Portion's circuit is reset, and and then the low level voltage signal of the 3 feet output locking of IC2, driving PNP type triode T1 are become from ending
Conducting, driving relay J are attracted, and normally opened contact J1 is closed, and connects the big modulation circuit of the duty ratio of pulse-width modulation type, this
When, the big drive signal of pulse-width modulation circuit output duty cycle, driving FET T2 is operated in the big working condition of duty ratio,
LED street lamp is set to be operated in vehement bright operating mode；9 feet of IC2, the timing that 10 feet are timer set constant, and selection is suitable
Parameter, you can meet about 6 hours timings.When timing is count down to, 3 feet of IC2 are become by output low level
For high level output, effect T1 becomes ending from being connected, and so that relay J is become tripping from being attracted, normally opened contact J1 is disconnected, often
Closed contact J2 changes from disconnected to closed, the small modulation circuit of duty cycle, at this point, pulse-width modulation circuit output duty cycle is small
Drive signal, driving FET T2 are operated in the small working condition of duty ratio, and LED street lamp is made to be operated in dark bright operating mode,
To realize timing automatic dimming function；The 3 feet output high level of IC2 is sent to 11 feet, and effect IC2 internal oscillator circuits stopping is shaken
It swings, and present situation is maintained until working power is switched off.
As shown in Figure 1, LED is LED street lamp luminescent screen circuit, the connection wiring of luminescent screen circuit uses to be connected in series with all the way
The concatenated LED quantity of mode is according to the power decision of street lamp.LED chip selects the high brightness chip with Zener diode function,
Monolithic power is 1W, and effect of the LED chip with Zener diode function is：In LED chip series wiring, just in case there is some core
Piece is burnt out, then continues the linkage function for keeping burning out chip or so circuit by Zener diode function, do not influence not burn out
LED chip normal work；Using the concatenated mode of connection all the way, its role is to：The work total current of LED street lamp is equal to
The rated operational current of single chip LED in series connection, work total current value reduces, along with LED street lamp has good aluminum
Heat-dissipating casing makes the operating temperature of LED street lamp be in 40 degree or less；Timing automatic dimming function is recycled, LED street lamp is made to avoid
Harm of the circuit extra-high voltage to street lamp after midnight, remains 40 degree of operating temperatures below, realization of having ready conditions to LED street lamp
The application theorem of LED：" when LED operation temperature is 50 degree or less, service life is 50,000 hours ".50000 hours, such as use LED street lamp
Daily average operation calculates for 12 hours, then LED street lamp can be used normally 11 years.
As shown in Figure 1, R3 is current-limiting resistance, it is 7 watts or more of cement resistor to select power, and resistance value is according to LED street lamp
Watt level is selected；R2, C6, C7, D4 form reduction voltage circuit, filter circuit and regulator circuit.Wherein R2 is dropping resistor, is selected
Power is the metalfilmresistor of 2W, send filter circuit C6, C7 to filter after the DC voltage of high voltage about 400V is reduced several volts,
Then stablized in about 12V values by both-end regulator circuit D4, supply IC2, IC3 are working power.
As shown in Figure 1, V is varistor, the pressure-resistant varistor of 400V or more is selected；B is fuse.Select 2A insurances
Value；E is the thermistor of negative temperature coefficient, plays the role of Antisurge current in circuit；D6 is switching diode, is selected
IN4148 models；D10 is both-end voltage-stabiliser tube, selects the voltage-stabiliser tube of 10V voltage stabilizing values；The input power of LED street lamp is line voltage L,
That is two input lines are all firewire, line voltage 380V.
Claims (1)
1. a kind of exchange 380V drives LED street lamp with an automatic light meter, circuit to form by ac filter circuit, rectification circuit, work(
Rate correcting circuit, timer circuit, pulse-width modulation circuit and LED lighting board circuit composition；The interconnection of each component of circuit
It is：The input terminal of ac filter circuit is connected with the line voltage of alternating current, and voltage is exchange 380V；The output end of ac filter circuit
It is connected with bridge rectifier input terminal；The rectifier, output quantity are the direct currents of pulsation, and voltage is sine wave, and electric
Loss is very serious, and power factor is very low, for this purpose, introducing power imitates positive circuit, input terminal is connect with rectifier output end, is exported
End is connect with timer circuit, pulse-width modulation circuit, LED lighting board circuit, can be power factor after power factor correction circuit
It is increased to 0.90 or more；The timer, the relay that output end is connected control the defeated of the dutyfactor value of pulse-width modulation circuit
Go out, when the normally opened contact J1 of relay is closed, the dutyfactor value of pulse-width modulation circuit output is big, and LED street lamp is operated in vehement bright
Operating mode in；When the normally-closed contact J2 of relay is closed, the dutyfactor value of pulse-width modulation circuit output is small, LED street lamp work
In dark bright operating mode, to realize automatic dimming function；The field-effect tube T2 of pulse-width modulation circuit output end, directly controls
The operating current of LED, the resistance R3 being in series with LED is current-limiting resistance, selects suitable R3 values, you can meet required LED
The operating current of street lamp；The LED lighting board circuit, using series wiring mode all the way, concatenated LED goes here and there quantity according to street lamp
Power decision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640748.6A CN108601156A (en) | 2018-06-18 | 2018-06-18 | A kind of exchange 380V drives LED street lamp with an automatic light meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640748.6A CN108601156A (en) | 2018-06-18 | 2018-06-18 | A kind of exchange 380V drives LED street lamp with an automatic light meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108601156A true CN108601156A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640748.6A Withdrawn CN108601156A (en) | 2018-06-18 | 2018-06-18 | A kind of exchange 380V drives LED street lamp with an automatic light meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435596A (en) * | 2020-11-17 | 2021-03-02 | 广西淘亮照明科技有限责任公司 | High energy-saving subway station advertising light boxes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163010A (en) * | 2016-08-22 | 2016-11-23 | 上思县东岽电子科技有限责任公司 | A kind of light-operated LED road lamp of pulse-width regulated formula |
| CN206341460U (en) * | 2017-01-10 | 2017-07-18 | 济南爱默生电源有限公司 | The constant current of direct-current remote feeding power LED street lamp drives and light modulation integrated apparatus |
| CN207219117U (en) * | 2017-09-25 | 2018-04-10 | 丹阳市得煜新能源应用有限公司 | A kind of road lighting intelligence control system |
| CN108040396A (en) * | 2017-12-21 | 2018-05-15 | 上思县东岽电子科技有限责任公司 | A kind of LED street lamp of high efficiency low energy consumption high brightness low-temperature-rise |
-
2018
- 2018-06-18 CN CN201810640748.6A patent/CN108601156A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163010A (en) * | 2016-08-22 | 2016-11-23 | 上思县东岽电子科技有限责任公司 | A kind of light-operated LED road lamp of pulse-width regulated formula |
| CN206341460U (en) * | 2017-01-10 | 2017-07-18 | 济南爱默生电源有限公司 | The constant current of direct-current remote feeding power LED street lamp drives and light modulation integrated apparatus |
| CN207219117U (en) * | 2017-09-25 | 2018-04-10 | 丹阳市得煜新能源应用有限公司 | A kind of road lighting intelligence control system |
| CN108040396A (en) * | 2017-12-21 | 2018-05-15 | 上思县东岽电子科技有限责任公司 | A kind of LED street lamp of high efficiency low energy consumption high brightness low-temperature-rise |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435596A (en) * | 2020-11-17 | 2021-03-02 | 广西淘亮照明科技有限责任公司 | High energy-saving subway station advertising light boxes |
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Application publication date: 20180928 |