CN101742785A - Intelligent dimming three-primary-color LED street lamp controller - Google Patents
Intelligent dimming three-primary-color LED street lamp controller Download PDFInfo
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- CN101742785A CN101742785A CN201010113597A CN201010113597A CN101742785A CN 101742785 A CN101742785 A CN 101742785A CN 201010113597 A CN201010113597 A CN 201010113597A CN 201010113597 A CN201010113597 A CN 201010113597A CN 101742785 A CN101742785 A CN 101742785A
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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
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- 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 invention relates to an intelligent dimming three-primary-color LED street lamp controller and belongs to the field of electric power illumination. The controller consists of a rectifier circuit, a PFC power calibration circuit, a power supply regulating circuit, an MCU controller, a time control circuit, a sensitization control circuit, a red light constant-current control circuit, a green light constant-current control circuit, a blue light constant-current control circuit, and red-green-blue large power LED light emitting arrays, wherein the rectifier circuit is connected with the power supply regulating circuit and the red-green-blue large power LED light emitting arrays through the PFC power calibration circuit respectively; the power supply regulating circuit, the time control circuit and the sensitization control circuit are connected with the MCU controller; the MCU controller is connected with the red light constant-current control circuit, the green light constant-current control circuit and the blue light constant-current control circuit; and the red light constant-current control circuit, the green light constant-current control circuit and the blue light constant-current control circuit are connected with the corresponding red-green-blue large power LED light emitting arrays. The controller has less lamp light attenuation and can automatically regulate LED street lamp luminance according to time and sunlight intensity.
Description
Technical field
The present invention relates to the power lighting field, say it is a kind of intelligent dimming three-primary-color LED street lamp controller in detail.
Background technology
As everyone knows: lighting field electricity consumption has at present accounted for 25% of whole electricity consumptions, and main illuminating lamp has incandescent lamp, fluorescent lamp, gases at high pressure lamp, and their common characteristic is to do main luminescent material with tungsten filament, but that shortcoming is that electric energy converts optical efficiency to is low.Because of its heating is few, the luminous efficiency height is regarded as cold light source during LED work.The LED street lamp is made up of substrate, transmitting mirror and the heat abstractor of controller, band LED lamp, compares with traditional gases at high pressure lamp, and its electric energy can reach more than 85%.Along with the semiconductor lighting technology further develops, the light efficiency of LED improves constantly, and just progressively near the light efficiency of conventional road lamp light source, therefore replaces conventional road lamp with the LED street lamp and has just become inexorable trend.Present LED street lamp mainly is to form with large power white light LED, because operating ambient temperature is more abominable, LED street lamp light decay phenomenon is more serious, though moving heaven and earth, some LED street lamp producer solves LED lamp heat dissipation problem, but it is all not obvious to have obtained effect, also is to cause at present one of the reason that can not the LED street lamp can not install and use in enormous quantities.Moreover present street lighting all is to power up second day from the beginning to close electricity, and street lighting all is a capacity operation, promptly be in the dead of night vehicle also be so time seldom, wasted a large amount of electric energy.
Summary of the invention
Purpose of the present invention just is to overcome existing LED street lamp deficiency, provides a kind of LED light decay little, can regulate the LED street lamp brightness automatically according to time and intensity of sunshine, makes the LED street lighting maximize energy-conservation intelligent controller.
The present invention adopts following technical solution: a kind of intelligent dimming three-primary-color LED street lamp controller, by rectification circuit, the PFC power factor correction circuit, power supply regulator circuit, the MCU controller, time control circuit, the sensitization control circuit, the ruddiness constant-current control circuit, the green glow constant-current control circuit, the blue light constant-current control circuit, RGB great power LED light emitting array is formed, rectification circuit links to each other with RGB great power LED light emitting array with power supply regulator circuit respectively by the PFC power factor correction circuit, power supply regulator circuit, time control circuit all links to each other with the MCU controller with the sensitization control circuit, the MCU controller respectively with the ruddiness constant-current control circuit, the green glow constant-current control circuit, the blue light constant-current control circuit links to each other, the ruddiness constant-current control circuit, the green glow constant-current control circuit, the blue light constant-current control circuit is continuous with corresponding RGB great power LED light emitting array.
The present invention also can realize by following measure: rectification circuit comprises socket J1, fuse F1, rectifier diode D1, D2, D3, D4, common-mode filter T1,220 volts of alternating currents with the positive pole of diode D1, D3 and link to each other with the negative pole of diode D2, D4, obtain the homophase pulsating voltage behind fuse F1 and common-mode filter T1.
The PFC power factor correction circuit comprises capacitor C 8, C9, diode D5, D6 and resistance R 1, capacitor C 8 links to each other with the positive pole of diode D5 and the negative pole of diode D6, D7, capacitor C 9 links to each other with resistance R 1 with the positive pole of diode D7, the negative pole of diode D5 links to each other with resistance R 1, capacitor C 8 and diode D6 form an arm of half-bridge, capacitor C 9 and diode D7 form another arm of half-bridge, and diode D5 and resistance R 1 are formed the charging connecting path.
Power supply regulator circuit comprises resistance R 7, capacitor C 13, voltage stabilizing didoe Z1, current-limiting resistance R7 one end connects the positive pole of DC high-voltage power supply, the other end connects the positive pole of voltage stabilizing didoe Z1, the negative pole of voltage stabilizing didoe Z1 connects filter capacitor C10 positive pole, the 20th pin of filter capacitor C13 one termination MCU controller, other end ground connection, this circuit provides the galvanic current source for the MCU controller.
The MCU controller comprises MCU control chip U3, capacitor C 5, C7, C10, clock crystal oscillator CRY1 and resistance R 8, resistance R 8 links to each other with the positive pole of capacitor C 10, form electrify restoration circuit, and link to each other with the 1st pin of MCU control chip U3, the minus earth of capacitor C 10, capacitor C 5 links to each other with 2 pin of clock crystal oscillator CRY1 respectively with C7, links to each other with the 5th pin with the 4th pin of MCU control chip U3 more simultaneously.
The sensitization control circuit comprises sensitization resistance R T1, resistance R 11, capacitor C 12, and sensitization resistance R T1 one end links to each other with 5 volts, and the other end links to each other with capacitor C 12 with resistance R 11, and the other end of resistance R 11 and capacitor C 12 all links to each other with ground.
The ruddiness constant-current control circuit comprises constant current control chip U1, resistance R 2, R3, R4, R5, R6, capacitor C 1, C2, field effect light Q1, diode D8, block inductance L 1, resistance R 4 one ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U1, diode D8 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 1 with field effect transistor Q1 source electrode, the base stage of field effect transistor Q1 links to each other with the GATE pin of constant current control chip U1, drain electrode links to each other with resistance R 6, one end of resistance R 2 links to each other with the LD pin of constant current control chip U1, and the other end links to each other with 19 pin of MCU control chip U3.
Green glow constant-current control circuit: comprise constant current control chip U2, resistance R 9, R10, R11, R12, R13, R14, R15, capacitor C 3, C4, field effect light Q2, diode D9, block inductance L 2, resistance R 10 1 ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U2, diode D9 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 2 with field effect transistor Q2 source electrode, the base stage of field effect transistor Q2 links to each other with the GATE pin of constant current control chip U2, drain electrode links to each other with resistance R 15, one end of resistance R 9 links to each other with the LD pin of constant current control chip U2, and the other end links to each other with 18 pin of MCU control chip U3.
The blue light constant-current control circuit comprises constant current control chip U4, resistance R 19, R20, R21, R22, capacitor C 6, C11, field effect light Q3, diode D10, block inductance L 3, resistance R 13 1 ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U4, diode D10 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 3 with field effect transistor Q3 source electrode, the base stage of field effect transistor Q3 links to each other with the GATE pin of MCU control chip U3, drain electrode links to each other with resistance R 22, one end of resistance R 19 links to each other with the LD pin of MCU control chip U3, and the other end links to each other with 17 pin of MCU control chip U3.
RGB great power LED light emitting array comprises red light emitting diodes LEDR1～LEDR16, green LED LEDG1～LEDG16, blue LED LEDB1～LEDB16, red, green, blue rate light-emitting diode by rounded projections arranged, is formed single white-light emitting point earlier.Form red, green, blue three row according to 16 diodes of every row again.
The invention has the beneficial effects as follows that the decay of LED light is little, can regulate the LED street lamp brightness automatically according to time and intensity of sunshine, makes the LED street lighting maximize energy-conservation intelligent controller.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a theory diagram of the present invention.
Fig. 2 is circuit theory diagrams of the present invention.
1. rectification circuits among the figure, 2.PFC power factor correction circuit, 3. power supply regulator circuit, 4.MCU controller, 5. ruddiness constant-current control circuit, 6. green glow constant-current control circuit, 7. RGB great power LED light emitting array, 8. blue light constant-current control circuit, 9. sensitization control circuit, 10. time control circuit, the U3.MCU controller chip, J1. alternating current interface socket, F1. fuse, D1～D10. rectifier diode, C1～C12. electric capacity, Z1. voltage stabilizing didoe, U1, U2, U4. constant current control chip, Q1～Q3. field effect transistor, CRY1. clock crystal oscillator, U5. time control chip, RT1. sensitization resistance, the red large-power light-emitting diodes of LEDR1～LEDR16., the green large-power light-emitting diodes of LEDG1～LEDG16., the blue large-power light-emitting diodes of LEDB1～LEDB16., L1～L3. blocks inductance, T1. common-mode filter, R1～R22. resistance.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, to help understanding content of the present invention.
As shown in Figure 1, the present invention is by rectification circuit 1, PFC power factor correction circuit 2, power supply regulator circuit 3, MCU controller 4, time control circuit 10, sensitization control circuit 9, ruddiness constant-current control circuit 5, green glow constant-current control circuit 6, blue light constant-current control circuit 8, RGB great power LED light emitting array 7 is formed, rectification circuit 1 links to each other with RGB great power LED light emitting array 7 with power supply regulator circuit 3 respectively by PFC power factor correction circuit 2, power supply regulator circuit 3, time control circuit 10 all links to each other with MCU controller 4 with sensitization control circuit 9, MCU controller 4 respectively with ruddiness constant-current control circuit 5, green glow constant-current control circuit 6, blue light constant-current control circuit 8 links to each other ruddiness constant-current control circuit 5, green glow constant-current control circuit 6, blue light constant-current control circuit 8 is continuous with corresponding RGB great power LED light emitting array 7.
Controller of the present invention is pulsed the alternating current of input earlier by generation after rectification circuit 1 rectification direct voltage, after behind PFC power factor correction circuit 2 and the power supply regulator circuit 3, the RGB great power LED light emitting array 7 that corresponding direct voltage offers MCU controller 4 and LED street lamp is respectively powered.Powering up MCU controller 4 starts working, at first detection day brightness and time are provided with situation, according to day brightness and the time situation is set, MCU controller 4 is controlled ruddiness constant-current control circuit 5, green glow constant-current control circuit 6, blue light constant-current control circuit 8 respectively, drive RGB great power LED light emitting array 7 according to the mixed white light proportionality principle, produce the white light of corresponding lighting power.After one section of the LED street lamp work, begin to become the power illumination time according to what be provided with, such as point in evenings 12, MCU controller 4 is just just regulated red, green, blue three look electric currents one time according to 100% → 90% → 80% → 70% → 60% → 50% grade automatically every passing hour, reduce red, green, blue three look electric currents in proportion according to the mixed white light ratio, reach and reduce the purpose that the LED street lamp reduces brightness, maximum amount energy savings simultaneously also maximum ratio utilize electric energy.When detecting daylight when very strong, MCU controller 4 will cut out the output of red, green, blue three look electric currents automatically, makes MCU controller 4 self be operated in the super low-power consumption state; When detecting daylight when very weak, MCU controller 4 just is transferred to operating state from the super low-power consumption state, makes the LED street lamp begin operate as normal.Controller also can become color according to specific requirement and carry out the environmental decoration illumination.
As shown in Figure 2, rectification circuit 1: comprise socket J1, fuse F1, rectifier diode D1～D4, common-mode filter T1,220 volts of alternating currents with the positive pole of diode D1, D3 and link to each other with the negative pole of diode D2, D4, obtain the homophase pulsating voltage behind fuse F1 and common-mode filter T1.
PFC power factor correction circuit 2: comprise capacitor C 8, C9, diode D5, D6 and resistance R 1, capacitor C 8 links to each other with the positive pole of diode D5 and the negative pole of diode D6, D7, capacitor C 9 links to each other with resistance R 1 with the positive pole of diode D7, the negative pole of diode D5 links to each other with resistance R 1, capacitor C 8 and diode D6 form an arm of half-bridge, capacitor C 9 and diode D7 form another arm of half-bridge, diode D5 and resistance R 1 are formed the charging connecting path, the PFC power factor correction circuit, reduced the phase difference between alternating current voltage and the electric current, power factor is brought up to more than 0.9.
Power supply regulator circuit 3: comprise resistance R 7, capacitor C 13, voltage stabilizing didoe Z1, current-limiting resistance R7 one end connects the positive pole of DC high-voltage power supply, the other end connects the positive pole of voltage stabilizing didoe Z1, the negative pole of voltage stabilizing didoe Z1 connects filter capacitor C10 positive pole, the 20th pin of filter capacitor C13 one termination MCU control chip U3, other end ground connection, this circuit provides the galvanic current source for the MCU controller.
MCU controller 4: comprise MCU control chip U3, capacitor C 5, C7, C10, clock crystal oscillator CRY1 and resistance R 8, resistance R 8 links to each other with the positive pole of capacitor C 10, form electrify restoration circuit, and link to each other with the 1st pin of MCU control chip U3, the minus earth of capacitor C 10, capacitor C 5 links to each other with 2 pin of clock crystal oscillator CRY1 respectively with C7, link to each other with the 5th pin with the 4th pin of MCU control chip U3 more simultaneously, MCU control chip U3 is the control core, and brilliance control of LED lamp and time, intensity of sunshine detect and all control by MCU control chip U3.
Time control circuit 10: comprise time control chip U5, resistance R 16, R17, R18, time control chip U5 is the perpetual calendar control chip, in data wire SDA, clock line SCL, time, can link to each other with the 2nd pin the 3rd pin the 6th pin of MCU control chip U3 respectively by signal EN, resistance R 16 links to each other with the data wire SDA of time control chip U5, resistance R 17 links to each other with the clock line SCL of time control chip U5, and resistance R 18 links to each other with the enable signal EN of time control chip U5.The change power time point of setting compares with Beijing time constantly, when the time of operation reaches the change power time point of setting, just reduces or increase LED lamp lighting power by the MCU controller.
Sensitization control circuit 9: comprise sensitization resistance R T1, resistance R 11, capacitor C 12, sensitization resistance R T1 one end links to each other with 5 volts, and the other end links to each other with capacitor C 12 with resistance R 11, and the other end of resistance R 11 and capacitor C 12 all links to each other with ground.Along with intensity of sunshine progressively reduces, the resistance of sensitization resistance R T1 will reduce, and its dividing potential drop also will reduce.The MCU controller just according to detected different magnitudes of voltage, is confirmed the intensity of illumination at sunshine.
Ruddiness constant-current control circuit 5: comprise constant current control chip U1, resistance R 2, R3, R4, R5, R6, capacitor C 1, C2, field effect light Q1, diode D8, block inductance L 1, resistance R 4 one ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U1, diode D8 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 1 with field effect transistor Q1 source electrode, the base stage of field effect transistor Q1 links to each other with the GATE pin of constant current control chip U1, drain electrode links to each other with resistance R 6, one end of resistance R 2 links to each other with the LD pin of constant current control chip U1, and the other end links to each other with 19 pin of MCU control chip U3.The electric current of LED lamp red light emitting diodes can linear regulation, and size of current is decided by the linear voltage value size that the MCU controller sends.
Green glow constant-current control circuit 6: comprise constant current control chip U2, resistance R 9～R15, capacitor C 3～C4, field effect light Q2, diode D9, block inductance L 2.Resistance R 10 1 ends link to each other with the positive pole of high direct voltage, and the other end links to each other with the VIN pin of constant current control chip U2.Diode D9 one end links to each other with the positive pole of high direct voltage, and the other end links to each other with obstruction inductance L 2 with field effect transistor Q2 source electrode, and the base stage of field effect transistor Q2 links to each other with the GATE pin of constant current control chip U2, and drain electrode links to each other with resistance R 15.One end of resistance R 9 links to each other with the LD pin of constant current control chip U2, and the other end links to each other with 18 pin of MCU controller.The electric current of LED lamp green LED can linear regulation, and size of current is decided by the linear voltage value size that the MCU controller sends.
Blue light constant-current control circuit 8: comprise constant current control chip U4, resistance R 19, R20, R21, R22, capacitor C 6, C11, field effect light Q3, diode D10, block inductance L 3, resistance R 13 1 ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U4, diode D10 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 3 with field effect transistor Q3 source electrode, the base stage of field effect transistor Q3 links to each other with the GATE pin of MCU control chip U3, and drain electrode links to each other with resistance R 22.One end of resistance R 19 links to each other with the LD pin of MCU control chip U3, and the other end links to each other with 17 pin of MCU controller.The electric current of LED lamp blue LED can linear regulation, and size of current is decided by the linear voltage value size that the MCU controller sends.
RGB great power LED light emitting array 7: comprise red light emitting diodes LEDR1, LEDR2, LEDR3, LEDR4, LEDR5, LEDR6, LEDR7, LEDR8, LEDR9, LEDR10, LEDR11, LEDR12, LEDR13, LEDR14, LEDR15, LEDR16, green LED LEDG1, LEDG2, LEDG3, LEDG4, LEDG5, LEDG6, LEDG7, LEDG8, LEDG9, LEDG10, LEDG11, LEDG12, LEDG13, LEDG14, LEDG15, LEDG16, blue LED LEDB1, LEDB2, LEDB3, LEDB4, LEDB5, LEDB6, LEDB7, LEDB8, LEDB9, LEDB10, LEDB11, LEDB12, LEDB13, LEDB14, LEDB15, LEDB16. red, green, blue rate light-emitting diode is earlier by rounded projections arranged, form single white-light emitting point, form red according to 16 diodes of every row again, green, Lan Sanlie.
Claims (10)
1. intelligent dimming three-primary-color LED street lamp controller, by rectification circuit, the PFC power factor correction circuit, power supply regulator circuit, the MCU controller, time control circuit, the sensitization control circuit, the ruddiness constant-current control circuit, the green glow constant-current control circuit, the blue light constant-current control circuit, RGB great power LED light emitting array is formed, rectification circuit links to each other with RGB great power LED light emitting array with power supply regulator circuit respectively by the PFC power factor correction circuit, power supply regulator circuit, time control circuit all links to each other with the MCU controller with the sensitization control circuit, the MCU controller respectively with the ruddiness constant-current control circuit, the green glow constant-current control circuit, the blue light constant-current control circuit links to each other, the ruddiness constant-current control circuit, the green glow constant-current control circuit, the blue light constant-current control circuit is continuous with corresponding RGB great power LED light emitting array.
2. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said rectification circuit comprises socket J1, fuse F1, rectifier diode D1, D2, D3, D4, common-mode filter T1,220 volts of alternating currents with the positive pole of diode D1, D3 and link to each other with the negative pole of diode D2, D4, obtain the homophase pulsating voltage behind fuse F1 and common-mode filter T1.
3. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said PFC power factor correction circuit comprises capacitor C 8, C9, diode D5, D6 and resistance R 1, capacitor C 8 links to each other with the positive pole of diode D5 and the negative pole of diode D6, D7, capacitor C 9 links to each other with resistance R 1 with the positive pole of diode D7, the negative pole of diode D5 links to each other with resistance R 1, capacitor C 8 and diode D6 form an arm of half-bridge, capacitor C 9 and diode D7 form another arm of half-bridge, and diode D5 and resistance R 1 are formed the charging connecting path.
4. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said power supply regulator circuit comprises resistance R 7, capacitor C 13, voltage stabilizing didoe Z1, current-limiting resistance R7 one end connects the positive pole of DC high-voltage power supply, the other end connects the positive pole of voltage stabilizing didoe Z1, the negative pole of voltage stabilizing didoe Z1 connects filter capacitor C10 positive pole, the 20th pin of filter capacitor C13 one termination MCU controller, other end ground connection, this circuit provides the galvanic current source for the MCU controller.
5. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said MCU controller comprises MCU control chip U3, capacitor C 5, C7, C10, clock crystal oscillator CRY1 and resistance R 8, resistance R 8 links to each other with the positive pole of capacitor C 10, form electrify restoration circuit, and link to each other with the 1st pin of MCU control chip U3, the minus earth of capacitor C 10, capacitor C 5 links to each other with 2 pin of clock crystal oscillator CRY1 respectively with C7, links to each other with the 5th pin with the 4th pin of MCU control chip U3 more simultaneously.
6. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said sensitization control circuit comprises sensitization resistance R T1, resistance R 11, capacitor C 12, sensitization resistance R T1 one end links to each other with 5 volts, the other end links to each other with capacitor C 12 with resistance R 11, and the other end of resistance R 11 and capacitor C 12 all links to each other with ground.
7. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said ruddiness constant-current control circuit comprises constant current control chip U1, resistance R 2, R3, R4, R5, R6, capacitor C 1, C2, field effect light Q1, diode D8, block inductance L 1, resistance R 4 one ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U1, diode D8 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 1 with field effect transistor Q1 source electrode, the base stage of field effect transistor Q1 links to each other with the GATE pin of constant current control chip U1, drain electrode links to each other with resistance R 6, one end of resistance R 2 links to each other with the LD pin of constant current control chip U1, and the other end links to each other with 19 pin of MCU control chip U3.
8. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said green glow constant-current control circuit: comprise constant current control chip U2, resistance R 9, R10, R11, R12, R13, R14, R15, capacitor C 3, C4, field effect light Q2, diode D9, block inductance L 2, resistance R 10 1 ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U2, diode D9 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 2 with field effect transistor Q2 source electrode, the base stage of field effect transistor Q2 links to each other with the GATE pin of constant current control chip U2, drain electrode links to each other with resistance R 15, one end of resistance R 9 links to each other with the LD pin of constant current control chip U2, and the other end links to each other with 18 pin of MCU control chip U3.
9. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said blue light constant-current control circuit comprises constant current control chip U4, resistance R 19, R20, R21, R22, capacitor C 6, C11, field effect light Q3, diode D10, block inductance L 3, resistance R 13 1 ends link to each other with the positive pole of high direct voltage, the other end links to each other with the VIN pin of constant current control chip U4, diode D10 one end links to each other with the positive pole of high direct voltage, the other end links to each other with obstruction inductance L 3 with field effect transistor Q3 source electrode, the base stage of field effect transistor Q3 links to each other with the GATE pin of MCU control chip U3, drain electrode links to each other with resistance R 22, one end of resistance R 19 links to each other with the LD pin of MCU control chip U3, and the other end links to each other with 17 pin of MCU control chip U3.
10. intelligent dimming three-primary-color LED street lamp controller according to claim 1, it is characterized in that said RGB great power LED light emitting array comprises red light emitting diodes LEDR1～LEDR16, green LED LEDG1～LEDG16, blue LED LEDB1～LEDB16, red, green, blue rate light-emitting diode by rounded projections arranged, is formed single white-light emitting point earlier.Form red, green, blue three row according to 16 diodes of every row again.
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| CN201010113597A CN101742785A (en) | 2010-01-26 | 2010-01-26 | Intelligent dimming three-primary-color LED street lamp controller |
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| CN201010113597A CN101742785A (en) | 2010-01-26 | 2010-01-26 | Intelligent dimming three-primary-color LED street lamp controller |
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Cited By (3)
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| CN102591277A (en) * | 2012-01-31 | 2012-07-18 | 得实半导体照明(江门)有限公司 | Intelligent environment monitoring system |
| WO2017107080A1 (en) * | 2015-12-23 | 2017-06-29 | 袁志贤 | Four-color control led lamp |
| CN111970787A (en) * | 2019-05-20 | 2020-11-20 | 江苏省德懿翔宇光电科技有限公司 | Circuit for supplying power and reducing loss for LEDs with various colors |
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