CN202043325U - LED (Light Emitting Diode) streetlamp control device based on PWM (Pulse Width Modulation) control - Google Patents
LED (Light Emitting Diode) streetlamp control device based on PWM (Pulse Width Modulation) control Download PDFInfo
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- CN202043325U CN202043325U CN2011200369747U CN201120036974U CN202043325U CN 202043325 U CN202043325 U CN 202043325U CN 2011200369747 U CN2011200369747 U CN 2011200369747U CN 201120036974 U CN201120036974 U CN 201120036974U CN 202043325 U CN202043325 U CN 202043325U
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- led
- pwm
- control circuit
- streetlamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
The utility model discloses an LED (Light Emitting Diode) streetlamp control device based on PWM (Pulse Width Modulation) control, which is characterized by comprising a solar cell panel, a control circuit and an LED streetlamp; the input side of the control circuit is connected with the solar cell panel and the output side of the control circuit is connected with the LED streetlamp; the control circuit comprises a PWM power driving unit, an MCU (Micro Control Unit) computer main controller, a temperature sensor, a current sensor and an output protection and power driving unit; the MCU computer main controller controls the PWM power driving unit, the temperature sensor, the current sensor and the output protection and power driving unit respectively through circuits; and the control circuit is further connected with a storage cell. The LED streetlamp control device based on PWM control has the advantages of: realizing the PWM control of photovoltaic power generation, improving the utilization rate of the solar cell panel, increasing the lighting time of the LED streetlamp, realizing the constant-current work of the LED streetlamp, improving the lighting quality, prolonging the service life of LED and being less in power devices in the whole circuit, simple in structure, small in overhead and easy for realization.
Description
Technical field
The utility model relates to the controller for road lamp in a kind of transformation of electrical energy device, relates in particular to the LED controller for road lamp that uses solar energy.
Background technology
In conjunction with the solar LED street lamp system that obtains, when sufficient, the electric energy that solar cell is produced leaves in the storage battery, at night electrical energy transfer is used for illumination to light-emitting diode then at sunshine with LED and solar energy.This street lamp illumination system, environmental protection has vast market and bright development prospect.
Tradition solar LED street lamp system, be that solar cell, LED directly are connected with storage battery, brought the harmful effect of two aspects: on the one hand, do not adopt MPPT maximum power point tracking control, influenced the operating characteristic of solar panel, low to the solar panel utilance, shortened the illumination duration of LED street lamp; On the other hand, because the battery tension instability, the operating current of LED changes with battery tension, causes the LED job insecurity, has shortened the useful life of LED street lamp.
The utility model content
The purpose of this utility model provides a kind of solar street lamp controller that can realize improving solar panel and LED utilization ratio in the Solar Street Lighting System.
In order to solve problems of the prior art, the utility model has designed a kind of LED street lamp control device based on PWM control, it is characterized in that: comprise solar panel, control circuit, LED street lamp, the input side of control circuit is connected with solar panel, and the outlet side of control circuit links to each other with the LED street lamp; Described control circuit includes pwm power driver element, MCU computer main controller, temperature sensor, current sensor, output protection and power drive unit, and described MCU computer main controller is controlled described pwm power driver element, temperature sensor, current sensor, output protection and power drive unit respectively by circuit; Described control circuit also is connected with storage battery.
Beneficial effect: 1. used single-chip microcomputer and special-purpose software, realized Based Intelligent Control; 2. utilize the accurate discharge control of battery discharge rate characteristic correction, final discharging voltage is the control point by the correction of discharge rate curve, eliminated simple voltage control and crossed the inaccuracy of putting, met the intrinsic characteristic of storage battery, promptly different discharge rates has different end of a period voltage; 3. have overcharge, cross put, electrical short, overload protection, unique Automatic Control such as anti-reverse protection; More than protection does not all damage any parts, does not burn insurance; 4. adopted tandem PWM charging main circuit, make the loss of voltage of charge circuit use the charging circuit of diode reduce near half, the high 3%-6% of the more non-PWM of charge efficiency has increased the electricity consumption time; Cross the lifting charging of putting recovery, directly fill normally, the floating charge automatic control mode makes system by longer useful life, has high precision temperature compensation simultaneously; 5. the LED luminous tube is indicated current storage battery state intuitively, allows the user understand behaviour in service; 6. technical grade chip (only to band I technical grade controller) is all adopted in all controls, can move freely at cold, high temperature, wet environment, has used the crystal oscillator timing controlled simultaneously, and timing controlled is accurate; 7. cancelled potentiometer adjustment control set point, and utilized the Flash memory record control point of respectively working, made digitlization is set, eliminated to float etc. making the control point factor that error reduces accuracy, reliability occur because of potentiometer vibrations off normal, temperature; 8. used digital LED to show and setting, operating in a key can be finished all settings, uses extremely convenient directly perceived; 9. have 2 kinds of output selections of direct current output or the output of 1HZ stroboscopic, stroboscopic output is specially adapted to LED Traffic alarm light etc.
Description of drawings
Fig. 1 is the LED street lamp control device structural representation based on PWM control of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, the LED street lamp control device based on PWM control of present embodiment, this controller aim at solar DC electric power system, the design of solar DC road lamp system, and have used the intelligent controller of special purpose computer chip.Adopt one-touch touch-switch, finish all operations and setting.Have short circuit, overload, unique anti-reverse protection, be full of, cross put automatically shut down, global function safeguard measures such as recovery, detailed charging indication, battery condition, load and various faulty indication.This controller is sampled to the parameter that the terminal voltage of storage battery, discharging current, ambient temperature etc. relate to battery capacity by computer chip, calculate by special-purpose controlling models, realization meets the discharge rate of battery characteristics, efficient, the high-accuracy control of temperature-compensating correction, and adopted the charge mode of efficient PWM storage battery, guarantee the state of battery-operated, prolong the useful life of storage battery greatly in the best.Have multiple mode of operation, output mode selection, satisfy the various needs of user.
Install and use: fixing of controller is firm, overall dimension: 140 X 90.5 (mm), installing hole size: 133.5 X 70 (mm); The preparation of lead: multiply copper core insulation lead is used in suggestion.Determine conductor length earlier, under the situation that guarantees the installation site, reduce wire length as far as possible, to reduce electrical loss.Select the copper conductor sectional area according to the current density that is not more than 4A/mm2, the insulation that the connector lug of controller one side is peelled off 5mm.
Connect the binding post of storage battery on the controller earlier, more other termination is connected on the storage battery, note+,-utmost point, not reversal connection.If connect correctly, indicator light (2) Ying Liang can check by button.Otherwise, need to check to connect right.As reversal connection takes place, can not burn insurance and damage any parts of controller.Fuse only damages the final protection of short circuit as the internal circuit of controller own.
Connect the photocell lead, connect photronic binding post on the controller earlier, more other termination is connected on the photocell, note+,-utmost point, not reversal connection, if sunlight is arranged, charging indicator light Ying Liang.Otherwise, need to check to connect right.
Load connects, with the load output on the line access controller of load, note+,-utmost point, not reversal connection is in order to avoid burn out electrical appliance.
The lead that connects photocell and load should stay a radian to prevent that rainwater from entering controller along lead as shown in the figure below terminal.
[operation instruction] charging and superpressure indication: when system connects normally, and when having solar radiation to arrive photovoltaic cell module, charging indicator light (1) be green Chang Liang, represents that system's charging circuit is normal; When green fast blink appearred in charging indicator light (1), the illustrative system overvoltage was handled and is seen the troubleshooting content; Charging process has been used the PWM mode, puts action if take place to cross, and charging will reach the lifting charging voltage earlier, and keeps 10 minutes, then drop to straight charging voltage, kept 10 minutes, swash storage battery to live, avoid vulcanizing crystallization, drop to float charge voltage at last, and keep float charge voltage.If do not take place to put, will not have the lifting charging modes, in case the storage battery dehydration.These automatic control processes will make storage battery reach the optimal charge effect and guarantee or prolong its useful life.
The battery condition indication: battery tension is when normal range (NR), and status indicator lamp (2) is green Chang Liang; Being full of the back status indicator lamp is that green is dodged slowly; Status indicator lamp becomes orange-yellow when under-voltage when cell voltage reduces; When battery tension continued to be reduced to the overdischarge pressure, status indicator lamp (2) became redness, and controller will cut out output automatically this moment, remind the timely electric energy supplement of user.In the time of in cell voltage returns to normal range of operation, will enable output automatically and open action, status indicator lamp (2) becomes green.
The load indication: when load is opened, load indicator light (3) Chang Liang.If load current surpassed the rated current of 1.25 times of controllers in the time of 60 seconds, or the rated current that load current has surpassed 1.5 times of controllers is in the time of 5 seconds, and indicator light (3) dodges slowly for redness, the expression overload, and controller will cut out output.When short trouble appears in load or load-side, controller will cut out output immediately, indicator light (3) quickflashing.When above-mentioned phenomenon occurring, the user should the scrutiny load connect situation, disconnect out of order load after, press one-touch, recover operate as normal after 30 seconds, or wait until second day can operate as normal.
[mode of operation setting] method to set up: press switch and button is set lasting 5 seconds, pattern (MODE) shows the digital LED flicker, release button, whenever by once changing a numeral, promptly stop key up to numeral that LED the shows numeral to last user selected pattern correspondence from table, the LED numeral is not glimmered and is promptly finished setting by the time.Whenever by a button, the LED numeral is lighted, and can be observed the value of setting.
Pure light-operated " 0 " pattern: when not having sunlight, light intensity drops to the start-up point, and delaying time of controller was opened load after confirming enabling signal in 10 minutes, and load is started working; When sunlight, light intensity is raised to the start-up point, and delaying time of controller is closed output after confirming in 10 minutes to close output signal, and load quits work.
Light-operated+the time-delay mode (" 1 "-" 9 ", " 0. "-" 5. "): start-up course is the same.Just close load when loaded work piece to the time of setting, time set sees the following form.Light-operated preferential.
General purpose controller mode " 6. ": this mode is only cancelled light-operated, time control function, output time-delay and relevant function, keeps other all functions, uses as general general purpose controller.
Debud mode " 7. ": be used for system debug and use, identical with pure optical mode control, only cancelled the 10min time-delay of judging light signal control output, keep other all functions.Have light signal promptly to connect load, no light signal is a switching off load, the correctness that check system is installed when making things convenient for Installation and Debugging.
Output mode explanation: when the LED charactron display mode value of setting, show that numeral does not have decimal point and promptly is output as pure direct current DC during " 0 " to " 9 " and " 0. " to " 5. " pattern and exports.If mixed decimal point is promptly when " 0 " to " 9 " for numeral, the charactron decimal point does not work.
Though the utility model is described by embodiment, embodiment and accompanying drawing are not to be used for limiting the utility model.Those skilled in the art can make various distortion and improvement in the scope of spirit of the present utility model, what therefore protection range of the present utility model should be defined with the application's claim protection range is as the criterion.
Claims (1)
1. LED street lamp control device based on PWM control, it is characterized in that: comprise solar panel, control circuit, LED street lamp, the input side of control circuit is connected with solar panel, and the outlet side of control circuit links to each other with the LED street lamp; Described control circuit includes pwm power driver element, MCU computer main controller, temperature sensor, current sensor, output protection and power drive unit, and described MCU computer main controller is controlled described pwm power driver element, temperature sensor, current sensor, output protection and power drive unit respectively by circuit; Described control circuit also is connected with storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200369747U CN202043325U (en) | 2011-02-12 | 2011-02-12 | LED (Light Emitting Diode) streetlamp control device based on PWM (Pulse Width Modulation) control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200369747U CN202043325U (en) | 2011-02-12 | 2011-02-12 | LED (Light Emitting Diode) streetlamp control device based on PWM (Pulse Width Modulation) control |
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| Publication Number | Publication Date |
|---|---|
| CN202043325U true CN202043325U (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200369747U Expired - Fee Related CN202043325U (en) | 2011-02-12 | 2011-02-12 | LED (Light Emitting Diode) streetlamp control device based on PWM (Pulse Width Modulation) control |
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| Country | Link |
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| CN (1) | CN202043325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826373A (en) * | 2014-03-17 | 2014-05-28 | 陕西科技大学 | Intelligent photovoltaic power generation tunnel lighting control device |
-
2011
- 2011-02-12 CN CN2011200369747U patent/CN202043325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826373A (en) * | 2014-03-17 | 2014-05-28 | 陕西科技大学 | Intelligent photovoltaic power generation tunnel lighting control device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20170212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |