CN108650741A - A kind of exchange 380V drives LED street lamp driver with an automatic light meter - Google Patents
A kind of exchange 380V drives LED street lamp driver with an automatic light meter Download PDFInfo
- Publication number
- CN108650741A CN108650741A CN201810640749.0A CN201810640749A CN108650741A CN 108650741 A CN108650741 A CN 108650741A CN 201810640749 A CN201810640749 A CN 201810640749A CN 108650741 A CN108650741 A CN 108650741A
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- Prior art keywords
- circuit
- street lamp
- led street
- pulse
- width modulation
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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]
-
- 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 driver 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 driver with an automatic light meter.
Background technology
Current LED street lamp driver, be all using phase voltage 220V driving, in the wiring of LED lighting board using string,
Parallel connection is combined, and the work total current magnitude of LED street lamp is relatively large, and most of LED street lamp lacks automatic dimming function,
The patent 201210200175.8 that I was authorized in 2016 has automatic dimming function, but working power is phase voltage
220VAC drives, and defect is：When the power of LED street lamp is more than 100W or more, the wiring of luminescent screen cannot use one
Road is connected in series with, 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 driver with an automatic light meter, disclose it is 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 what series and parallel wiring was brought using series wiring all the way
The excessive defect of total working electric current.
A kind of exchange 380V drives LED street lamp driver with an automatic light meter, circuit to form by ac filter circuit, rectification
Circuit, power factor correction circuit, timer circuit and pulse-width modulation circuit composition.The interconnection of each component of circuit is：Exchange
The input terminal of filter circuit is connected with the line voltage of alternating current, and voltage is exchange 380V；The output end and bridge-type of ac filter circuit
Rectifier input is connected；The rectifier, output quantity are the direct currents of pulsation, and voltage is sine wave, and current distortion
Seriously, power factor is very low, for this purpose, introducing power imitates positive circuit, input terminal connect with rectifier output end, output end and calmly
When device circuit, pulse-width modulation circuit, the connection of LED lighting board circuit, after power factor correction circuit, power factor can be increased to
0.90 or more；The timer, the relay that output end is connected control the output of the dutyfactor value of pulse-width modulation circuit, when
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, and LED street lamp is operated in dark bright
Operating mode in, to realize automatic dimming function；The field-effect tube T2 of pulse-width modulation circuit output end, directly controls the work of LED
Make electric current, the resistance R3 being in series with LED is current-limiting resistance, selects suitable R3 values, you can meet the work of required LED street lamp
Make electric current；The LED lighting board circuit, using series wiring mode all the way, concatenated LED strings quantity is determined according to the power of street lamp
It is fixed.
Description of the drawings
Fig. 1 is the circuit diagram that a kind of exchange 380V drives LED street lamp driver 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, 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 driver with an automatic light meter, circuit to form by ac filter circuit, rectified current
Road, power factor correction circuit, timer circuit and pulse-width modulation circuit composition；The interconnection of each component of circuit is：Exchange filter
The input terminal of wave circuit is connected with the line voltage of alternating current, and voltage is exchange 380V；The output end of ac filter circuit and bridge-type are whole
Stream device input terminal is connected；The rectifier, output quantity are the direct currents of pulsation, and voltage is sine wave, and current distortion is tight
Weight, power factor is very low, for this purpose, introducing power imitates positive circuit, input terminal is connect with rectifier output end, output end and timing
Device circuit, pulse-width modulation circuit, the connection of LED lighting board circuit, after power factor correction circuit, can be increased to power factor
0.90 or more；The timer, the relay that output end is connected control the output of the dutyfactor value of pulse-width modulation circuit, when
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, and LED street lamp is operated in dark bright
Operating mode in, to realize automatic dimming function；The field-effect tube T2 of pulse-width modulation circuit output end, directly controls the work of LED
Make electric current, the resistance R3 being in series with LED is current-limiting resistance, selects suitable R3 values, you can meet the work of required LED street lamp
Make electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640749.0A CN108650741A (en) | 2018-06-18 | 2018-06-18 | A kind of exchange 380V drives LED street lamp driver with an automatic light meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640749.0A CN108650741A (en) | 2018-06-18 | 2018-06-18 | A kind of exchange 380V drives LED street lamp driver with an automatic light meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108650741A true CN108650741A (en) | 2018-10-12 |
Family
ID=63753082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640749.0A Withdrawn CN108650741A (en) | 2018-06-18 | 2018-06-18 | A kind of exchange 380V drives LED street lamp driver with an automatic light meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108650741A (en) |
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 CN201810640749.0A patent/CN108650741A/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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181012 |
|
| WW01 | Invention patent application withdrawn after publication |