CN206348936U - Mobile solar energy traffic innervation instruction device - Google Patents
Mobile solar energy traffic innervation instruction device Download PDFInfo
- Publication number
- CN206348936U CN206348936U CN201621234640.XU CN201621234640U CN206348936U CN 206348936 U CN206348936 U CN 206348936U CN 201621234640 U CN201621234640 U CN 201621234640U CN 206348936 U CN206348936 U CN 206348936U
- Authority
- CN
- China
- Prior art keywords
- led
- unit
- cell
- battery
- electrical connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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]
Abstract
Mobile solar energy traffic innervation instruction device, is repaired for highway engineering construction or extraordinary maintenance.The device includes solar battery cell（1）, unidirectional charhing unit（2）, battery（3）, standby charging inlet（4）, boosting unit（5）, voltage regulation unit（6）, photocell voltage sampling unit（7）, light sensor（8）, DLL unit（9）, intelligent cell（10）, driver element（11）, the dynamic luminescence units of LED（12）.Using solar photovoltaic technology, electric energy is converted the solar into, the energy is provided for LED stop-lights, high-brightness LED light emitting diode is supplied by booster circuit.Intelligent cell is exported according to the illumination of detected ambient light with PWM dim signals, and control multi-group light-emitting diode lights sequential, LED is formed streamy dynamic direction through driver element and is indicated, so as to provide convenient to road traffic driving.
Description
Technical field
It is particularly a kind of to be easy to mobile solar energy capable of automatic regulating brightness the present invention relates to application of solar energy technology
LED stop-lights, belong to technical field of traffic control.
Background technology
Solar energy is a kind of green energy resource of cleaning, as photovoltaic industry is in the increasingly prevailing of all parts of the world, world's photovoltaic
Market obtains fast-developing.LED (light emitting diode) is also a kind of environmental protection, energy-conservation, efficient solid-state Novel electric light source, is had
Power consumption is small, brightness is high, small volume, lightweight, long lifespan the advantages of.LED technologies and heliotechnics are combined together, opened
Solar energy and semiconductor illumination is sent out, is optimal energy-saving and environmental protection combination, is the perfect knot of the energy of new generation and light source of new generation
Close.Research and develop using solar LED lighting engineering by be the sustainable development of countries in the world government strategic decision, meaning weight
Greatly.Have the advantages that energy saving, easy to control, reaction are fast as the traffic lights of light source with LED, progressively replace incandescent
Lamp, low-voltage halogen tungsten make road traffic signal lamp.
Applications of the LED in terms of traffic lights, its development is very fast, environmentally friendly, the section possessed in itself by LED
The advantages of energy, long-life, LED still has very big space in the application of field of traffic.It is effectively combined LED technologies and too
Positive energy photovoltaic technology, development ＆ production is removable and the traffic of LED luminance instruction can be automatically adjusted according to the intensity of ambient light
Lamp, can bring convenience to highway engineering construction or extraordinary maintenance maintenance.
The content of the invention
It is an object of the invention to propose the dynamic instruction device of mobile solar energy traffic, using in highway engineering construction or
When extraordinary maintenance is repaired, it is easy to movement, using solar photovoltaic technology, the electric energy that solar energy is changed supplies high brightness
LED light emitting diodes, control multi-group light-emitting diode to be lighted by certain sequential by intelligent cell, form streamy innervation
Direction is indicated, and can automatically adjust LED luminance according to the intensity of ambient light, provides convenient to road traffic driving.
What the present invention was realized in：Mobile solar energy traffic innervation instruction device, including：Solar battery cell
（1）, unidirectional charhing unit（2）, battery（3）, standby charging inlet（4）, boosting unit（5）, voltage regulation unit（6）, photocell
Voltage sampling unit（7）, light sensor（8）, DLL unit（9）, intelligent cell（10）, driver element（11）, LED move
Feel luminescence unit（12）；Wherein：
Solar battery cell（1）：Convert solar energy into electrical energy, the energy is provided for LED stop-lights, with unidirectionally filling
Electric unit（2）With photocell voltage sampling unit（7）Constitute electrical connection；
Unidirectional charhing unit（2）：By solar battery cell（1）With battery（3）One-way isolation charging is carried out, with the sun
Can battery unit（1）And battery（3）Constitute electrical connection；
Battery（3）：Store solar battery cell（1）Electric energy, with unidirectional charhing unit（2）, standby charging inlet
（4）, boosting unit（5）, voltage regulation unit（6）Constitute electrical connection；
Standby charging inlet（4）：Supplemented temporarily during for solar cell for supplying power scarce capacity and not enough accumulator electric-quantity
Electricity, external charger passes through the interface and battery（3）Constitute electrical connection；
Boosting unit（5）：For raising battery（3）Voltage, its export as LED power supplies, with battery
（3）, voltage regulation unit（6）, intelligent cell（10）, the dynamic luminescence units of LED（12）Constitute electrical connection；
Voltage regulation unit（6）：For intelligent cell（10）Stable operating voltage is provided, with battery（3）, boosting unit（5）
And intelligent cell（10）Constitute electrical connection；
Photocell voltage sampling unit（7）：The output voltage of solar battery cell is sampled, with solar cell
Unit（1）, unidirectional charhing unit（2）, intelligent cell（10）Constitute electrical connection；
Light sensor（8）：The change of ambient light is converted into the change of voltage signal, so that intelligent cell detects environment
The illumination of light, with intelligent cell（10）Constitute electrical connection；
DLL unit（9）：For intelligent cell（2）Programming, debugging, download program, with intelligent cell（10）Structure
Into electrical connection；
Intelligent cell（10）：Under program control, according to the illumination of detected ambient light, with PWM dim signals
Output, each group LED is lighted by certain sequential, is indicated so that LED forms streamy dynamic direction, with boosting unit（5）, it is steady
Press unit（6）, photocell voltage sampling unit（7）, light sensor（8）, DLL unit（9）, driver element（11）Structure
Into electrical connection；
Driver element（11）：According to intelligent cell（10）The each group LED's provided lights signal, and driving is lighted corresponding
LED, is indicated so as to form streamy dynamic direction, with intelligent cell（10）With the dynamic luminescence units of LED（12）Constitute electric
Connection；
LED innervation luminescence units（12）：It is made up of some LEDs, packet control, every group of LED is carried out to LED
Whether driven moving cell is lighted（11）Control, with boosting unit（5）And driver element（11）Constitute electrical connection.
The dynamic luminescence units of described LED（12）It is made up of m group LEDs, m is positive integer, and m >=3；Every group
LED contains the n bar branch roads of parallel connection, and n is positive integer；Every branch road has k LED light emitting diode to be composed in series LED string, and k is
Positive integer；Every group of LED is lighted by driver element by certain sequential, is formed streamy dynamic direction and is indicated.
The present invention is to be formed according to above-mentioned design using above-mentioned component combination, and its operation principle is：Utilize photovoltaic
Generation technology, converts the solar into electric energy, provides the energy for LED stop-lights, high-brightness LED is supplied by booster circuit
Light emitting diode.Intelligent cell is exported according to the illumination of detected ambient light with PWM dim signals, controls multi-group light-emitting
Diode lights sequential, LED is formed streamy dynamic direction through driver element and indicates, so as to be carried to road traffic driving
Supplier is just.
Advantages of the present invention and effect：
(1) solar-energy photo-voltaic cell is used, when highway engineering construction or extraordinary maintenance are repaired, is easy to movement.
(2) by the use of energy-conservation, efficient LED as luminescent device, with power consumption is small, brightness is high, small volume, the lightweight, longevity
The advantages of ordering long.
(3) can automatic detection ambient light illumination, and automatically change LED brightness, dimmed with PWM mode.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the circuit block diagram of the present invention.
Fig. 2 is solar battery cell, unidirectional charhing unit, battery, standby charging inlet, the voltage stabilizing list of embodiment
Member, the circuit catenation principle figure of photocell voltage sampling unit.
Fig. 3 is the circuit catenation principle figure of the light sensor, intelligent cell, DLL unit of embodiment.
Fig. 4 is boosting unit connection signal schematic representation.
Fig. 5 is the dynamic luminescence unit circuit catenation principle figure of driver element and LED of embodiment.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is described in further detail, and the specific embodiments described herein are merely illustrative of the present invention, is not used to limit
The fixed present invention.
It refer to Fig. 1, mobile solar energy traffic innervation instruction device, including：Solar battery cell（1）, unidirectionally fill
Electric unit（2）, battery（3）, standby charging inlet（4）, boosting unit（5）, voltage regulation unit（6）, photocell voltage sampling list
Member（7）, light sensor（8）, DLL unit（9）, intelligent cell（10）, driver element（11）, the dynamic luminescence units of LED
（12）；Wherein：Solar battery cell（1）Convert solar energy into electrical energy, the energy is provided for LED stop-lights, it is and unidirectional
Charhing unit（2）With photocell voltage sampling unit（7）Constitute electrical connection；Unidirectional charhing unit（2）By solar cell list
Member（1）With battery（3）One-way isolation charging is carried out, with solar battery cell（1）And battery（3）Constitute electrical connection；
Battery（3）Store solar battery cell（1）Electric energy, with unidirectional charhing unit（2）, standby charging inlet（4）, boosting it is single
Member（5）, voltage regulation unit（6）Constitute electrical connection；Standby charging inlet（4）For solar cell for supplying power scarce capacity and electric power storage
Electricity is supplemented temporarily during the not enough power supply of pond, external charger passes through the interface and battery（3）Constitute electrical connection；Boosting unit
（5）For raising battery（3）Voltage, its export as LED power supplies, with battery（3）, voltage regulation unit（6）, intelligence
Unit（10）, the dynamic luminescence units of LED（12）Constitute electrical connection；Voltage regulation unit（6）For intelligent cell（10）Stabilization is provided
Operating voltage, with battery（3）, boosting unit（5）And intelligent cell（10）Constitute electrical connection；Photocell voltage sampling unit
（7）The output voltage of solar battery cell is sampled, with solar battery cell（1）, unidirectional charhing unit（2）, intelligence
Can unit（10）Constitute electrical connection；Light sensor（8）The change of ambient light is converted into the change of voltage signal, so as to intelligence
Energy unit detects the illumination of ambient light, with intelligent cell（10）Constitute electrical connection；DLL unit（9）For intelligent cell
（2）Programming, debugging, download program, with intelligent cell（10）Constitute electrical connection；Intelligent cell（10）In the control of program
Under, according to the illumination of detected ambient light, exported with PWM dim signals, each group LED is lighted by certain sequential, so as to
LED forms streamy dynamic direction and indicated, with boosting unit（5）, voltage regulation unit（6）, photocell voltage sampling unit（7）、
Light sensor（8）, DLL unit（9）, driver element（11）Constitute electrical connection；Driver element（11）According to intelligent list
Member（10）The each group LED's provided lights signal, and corresponding LED is lighted in driving, is indicated so as to form streamy dynamic direction,
With intelligent cell（10）With the dynamic luminescence units of LED（12）Constitute electrical connection；LED innervation luminescence units（12）By some
LED is constituted, and packet control is carried out to LED, and whether every group of LED lights driven moving cell（11）Control, it is single with boosting
Member（5）And driver element（11）Constitute electrical connection.
Please referring further to Fig. 2, PVA is solar panel, is converted the solar into after electric energy by the list that unidirectionally charges
The diode D1 of member charges to battery BT1.Resistance R1, R2 constitute bleeder circuit and photoelectricity cell voltage are carried out there is provided single-chip microcomputer
The signal of sampling, electric capacity C1 is anti-interference capacitor.Socket CZ1 is the standby charging inlet of battery, is supplied for solar cell
Electricity is supplemented temporarily when electric scarce capacity and not enough accumulator electric-quantity, external charger is connected by the interface with battery.Open
Closing S1 is used to disconnect connected LED and related connection circuit when that need not light LED.By electric capacity C2, C3, C4 and 3.3V
Integrated regulator U1 constitutes voltage regulation unit, and output 3.3V vdd voltage is powered to as the single-chip microcomputer U2 of intelligent cell.
Please referring further to Fig. 3, intelligent cell is served as by high performance single-chip microcomputer U2.Single-chip microcomputer U2 model
C8051F300, chip internal be integrated with oscillator, the FLASH memory of in-system programmable components, debug circuit, temperature sensor,
ADC analog to digital conversion circuits, comparator, general 16 bit timing device/counter, hardware SMBus（I2C is compatible）, UART serial ports, PCA
Module, runs under program control.
Resistance R4, voltage-regulator diode D2 and electric capacity C6 composition voltage references, are connected to the 1st pin of single-chip microcomputer, are monolithic
ADC analog to digital conversion circuits inside machine provide voltage reference signal.
GM is the photodiode as light sensor, after being connected with resistance R3 and electric capacity C5, the with single-chip microcomputer U2 the 2nd
Pin is connected, and the ADC analog to digital conversion circuits inside the detection signal of ambient light, single-chip microcomputer are provided to single-chip microcomputer and change the signal
For illumination data signal.
The ADC moduluses that the pins of single-chip microcomputer U2 the 4th are connected to inside Fig. 2 photocell voltage sampling signal Vs, single-chip microcomputer turn
Change circuit and convert the signal into photocell voltage digital signal.
The pins of single-chip microcomputer U2 the 5th export variable pwm signal, become through resistance R5, electric capacity the C7 low-pass filter unit constituted
For variable DC voltage control signal, the output voltage of auxiliary control boosting unit.
Single-chip microcomputer U2 the 6th, 7,9 pins provide 3 groups of LED sequential of lighting under program control, export suitable PWM electricity
Signal is pressed, realizes that PWM is dimmed by driver element, is indicated so that LED forms streamy dynamic direction.The duty of pwm signal
Than being determined by single-chip microcomputer according to the illumination intensity signal of the ambient light detected, the signal for lighting LED is exported with this PWM duty cycle
, different dutycycles causes LED to have different brightness.
DLL unit is made up of socket CZ2 and resistance R7, and CZ2 pin 1 is connected to power vd D, pin 2 and single-chip microcomputer
U2 pin 10 is connected, and pin 3 is connected to the reset RST signal end of resistance R6 and electric capacity C8 compositions, and after being connected with resistance R7
Single-chip microcomputer U2 pin 8 is connected to, CZ2 pin 4 is directly connected with single-chip microcomputer U2 pin 8, and CZ2 pin 5 is connected to GND.
Emulated, programming operation when, single-chip microcomputer is connected by this interface with C8051F single-chip programmers or emulator, so as to list
Piece machine is programmed, debugged and download program.
Please referring further to Fig. 4, boosting unit is made up of BOOST booster circuits, and Vin is the control source of boosting unit
End, the voltage from battery, Vout is the voltage output end of boosting unit, and Vctl is the auxiliary control boosting from single-chip microcomputer
Signal, when the dutycycle for the PWM dim signals that single-chip microcomputer is exported reaches maximum, can further be improved by adjusting Vctl signals
The output voltage of booster circuit, so as to further improve LED brightness.
Please referring further to Fig. 5, DRV1, DRV2, DRV3 respectively from Fig. 3 single-chip microcomputers the 6th, 7,9 pins, pass through respectively
Resistance R10, R20, R30 are connected to triode V1, V2, V3 base stage, drive each group LED to light by triode.
LED innervation luminescence units are made up of 3 groups of high-brightness LED luminous devices；Every group of LED contains the n bar branch roads of parallel connection, n
For positive integer, in the present embodiment, n=2；Every branch road has 1 current-limiting resistance and k LED light emitting diode to be composed in series LED
Lamp string, k is positive integer.1st group of LED is made up of LED string LED11~LED12, and R11 is lamp string LED11 current-limiting resistance, R12
It is lamp string LED12 current-limiting resistance；2nd group of LED is made up of LED string LED21~LED22, and R21 is lamp string LED21 current limliting
Resistance, R22 is lamp string LED22 current-limiting resistance；3rd group of LED is made up of LED string LED31~LED32, and R31 is lamp string
LED31 current-limiting resistance, R32 is lamp string LED32 current-limiting resistance.
Claims (4)
1. mobile solar energy traffic innervation instruction device, it is characterised in that including：Solar battery cell（1）, unidirectional charging
Unit（2）, battery（3）, standby charging inlet（4）, boosting unit（5）, voltage regulation unit（6）, photocell voltage sampling unit
（7）, light sensor（8）, DLL unit（9）, intelligent cell（10）, driver element（11）, the dynamic luminescence units of LED
（12）；Wherein：
Solar battery cell（1）：Convert solar energy into electrical energy, the energy is provided for LED stop-lights, it is single with unidirectional charging
Member（2）With photocell voltage sampling unit（7）Constitute electrical connection；
Unidirectional charhing unit（2）：By solar battery cell（1）With battery（3）One-way isolation charging is carried out, with solar-electricity
Pool unit（1）And battery（3）Constitute electrical connection；
Battery（3）：Store solar battery cell（1）Electric energy, with unidirectional charhing unit（2）, standby charging inlet（4）、
Boosting unit（5）, voltage regulation unit（6）Constitute electrical connection；
Standby charging inlet（4）：Electricity is supplemented temporarily during for solar cell for supplying power scarce capacity and not enough accumulator electric-quantity,
External charger passes through the interface and battery（3）Constitute electrical connection；
Boosting unit（5）：For raising battery（3）Voltage, its export as LED power supplies, with battery（3）, it is steady
Press unit（6）, intelligent cell（10）, the dynamic luminescence units of LED（12）Constitute electrical connection；
Voltage regulation unit（6）：For intelligent cell（10）Stable operating voltage is provided, with battery（3）, boosting unit（5）And intelligence
Can unit（10）Constitute electrical connection；
Photocell voltage sampling unit（7）：The output voltage of solar battery cell is sampled, with solar battery cell
（1）, unidirectional charhing unit（2）, intelligent cell（10）Constitute electrical connection；
Light sensor（8）：The change of ambient light is converted into the change of voltage signal, so that intelligent cell detects ambient light
Illumination, with intelligent cell（10）Constitute electrical connection；
DLL unit（9）：For intelligent cell（10）Programming, debugging, download program, with intelligent cell（10）Constitute electricity
Gas is connected；
Intelligent cell（10）：Under program control, according to the illumination of detected ambient light, exported with PWM dim signals,
Each group LED is lighted by certain sequential, is indicated so that LED forms streamy dynamic direction, with boosting unit（5）, voltage stabilizing list
Member（6）, photocell voltage sampling unit（7）, light sensor（8）, DLL unit（9）, driver element（11）Constitute electricity
Gas is connected；
Driver element（11）：According to intelligent cell（10）The each group LED's provided lights signal, and corresponding LED is lighted in driving, from
And form streamy dynamic direction and indicate, with intelligent cell（10）With the dynamic luminescence units of LED（12）Constitute electrical connection；
LED innervation luminescence units（12）：It is made up of some LEDs, packet control is carried out to LED, whether is every group of LED
Light driven moving cell（11）Control, with boosting unit（5）And driver element（11）Constitute electrical connection.
2. the dynamic instruction device of mobile solar energy traffic according to claim 1, it is characterised in that described LED is moved
Feel luminescence unit（12）It is made up of m group LEDs, m is positive integer, and m >=3；Every group of LED contains the n bar branch roads of parallel connection,
N is positive integer；Every branch road has k LED light emitting diode to be composed in series LED string, and k is positive integer；Every group of LED passes through driving
Unit is lighted by certain sequential, is formed streamy dynamic direction and is indicated.
3. the dynamic instruction device of mobile solar energy traffic according to claim 1, it is characterised in that described intelligence is single
Member includes model C8051F300 single-chip microcomputer.
4. the dynamic instruction device of mobile solar energy traffic according to claim 1, it is characterised in that described photosensitive biography
The photodiode of sensor, after being connected with resistance R3 and electric capacity C5, is connected with single-chip microcomputer U2 the 2nd pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234640.XU CN206348936U (en) | 2016-11-17 | 2016-11-17 | Mobile solar energy traffic innervation instruction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234640.XU CN206348936U (en) | 2016-11-17 | 2016-11-17 | Mobile solar energy traffic innervation instruction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206348936U true CN206348936U (en) | 2017-07-21 |
Family
ID=59316238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621234640.XU Expired - Fee Related CN206348936U (en) | 2016-11-17 | 2016-11-17 | Mobile solar energy traffic innervation instruction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206348936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110493916A (en) * | 2019-08-23 | 2019-11-22 | 台山市永鸿光电有限公司 | A kind of solar control circuit of two line traffic controls RGBW, tetra- kinds of colors discolorations or fixation |
-
2016
- 2016-11-17 CN CN201621234640.XU patent/CN206348936U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110493916A (en) * | 2019-08-23 | 2019-11-22 | 台山市永鸿光电有限公司 | A kind of solar control circuit of two line traffic controls RGBW, tetra- kinds of colors discolorations or fixation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101668373A (en) | LED light source driving circuit supplied by AC power | |
| CN206115707U (en) | Solar energy LED traffic light of adjustable luminance | |
| CN105873304B (en) | It is a kind of to exchange the intelligent dimming LED energy-conserving road lamps directly driven | |
| CN206348936U (en) | Mobile solar energy traffic innervation instruction device | |
| CN201937925U (en) | LED constant current driver with function of voltage reduction | |
| CN202327976U (en) | Solar-energy desk lamp | |
| CN205987465U (en) | Improved generation solar lamp cluster | |
| CN105828490B (en) | A kind of LED energy-saving traffic signal lamps with an automatic light meter | |
| CN201152473Y (en) | LED decoration lamp | |
| CN206097491U (en) | Simple and easy solar energy LED traffic light | |
| CN201869407U (en) | LED intelligent control circuit | |
| CN102137537A (en) | Muti-path controlled constant current LED (light-emitting diode) drive power | |
| CN201270605Y (en) | Synthetic control circuit for LED road lamp | |
| CN202068622U (en) | Multi-path controlled constant flow LED (light-emitting diode) drive power source | |
| CN205670862U (en) | A kind of exchange the intelligent dimming LED energy-conserving road lamp directly driven | |
| CN207196326U (en) | Illuminating lamp based on organic photo cell | |
| CN102196640B (en) | Control circuit of LED (light-emitting diode) lights and light strings | |
| CN206851078U (en) | A kind of Energy-Efficient Led Street Lamp illuminator | |
| CN205754961U (en) | A kind of LED energy-saving traffic signal lamp with an automatic light meter | |
| CN205596384U (en) | From operation charge illumination lamp driving circuit | |
| CN213694217U (en) | Human body infrared induction LED lithium battery lamp | |
| CN206932445U (en) | LED electricity-saving lamps with lamp with auto-switch function | |
| CN102869156A (en) | Method for setting brightness of LED lamp by using on-off coding of power switch | |
| CN202068610U (en) | Dimmable LED energy-saving environment-protection lighting fitting | |
| CN202503697U (en) | Improved LED lamp driving control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20181117 |