CN207065461U - A kind of LED car lamp with temperature pre-warning defencive function - Google Patents
A kind of LED car lamp with temperature pre-warning defencive function Download PDFInfo
- Publication number
- CN207065461U CN207065461U CN201720955026.0U CN201720955026U CN207065461U CN 207065461 U CN207065461 U CN 207065461U CN 201720955026 U CN201720955026 U CN 201720955026U CN 207065461 U CN207065461 U CN 207065461U
- Authority
- CN
- China
- Prior art keywords
- resistance
- pin
- temperature
- car lamp
- circuit
- 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
- 230000005611 electricity Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
It the utility model is related to a kind of LED car lamp with temperature pre-warning defencive function; including LED light emitting sources, temperature sensor, input circuit, current adjustment drive circuit and output circuit; the temperature sensor is arranged on the lamppost of LED car lamp; input of the output end and temperature sensor of the input circuit respectively with current adjustment drive circuit is connected; the output end of the current adjustment drive circuit is connected with the input of output circuit, and the output end of the output circuit is connected with LED light emitting sources；The temperature sensor gathers the temperature information of lamppost in real time, and convert that information into electric signal and send adjustable current drive circuit to, adjustable current drive circuit adjusts output current size according to the electric signal received, reaches the purpose of control LED light emitting source input currents.The utility model LED car lamp is capable of the temperature of actively monitoring car light, and according to the input current of temperature adjustment LED light emitting sources, so as to be protected to LED car lamp.
Description
Technical field
It the utility model is related to LED car lamp technical field, and in particular to a kind of LED cars with temperature pre-warning defencive function
Lamp.
Background technology
With the continuous development of automobile industry, automobile lighting lamp is developing progressively from the xenon lamp or Halogen lamp LED of main flow
For LED car lamp.Because LED car lamp is compared with xenon lamp or Halogen lamp LED, there is energy-conservation, brightness height, long lifespan, element is small, is easy to
Arrange, light that speed is fast, the low advantage of loss, so LED car lamp turns into xenon lamp or the optimal upgrading of halogen regenerative-cycle headlamp
Product.
The structure of existing LED car lamp mainly includes：Light emitting source, lamppost, deck, fin, fan, LED constant current driving electricity
Road and plug, light emitting source are arranged on the front end of lamppost.LED is a kind of temperature sensitivity semiconductor devices, if semiconductor is in work
When heating effectively can not be distributed outwardly in work, LED light source brightness can be made drastically to reduce, constant temperature rising, cause LED to pacify
Full hydraulic performance decline, the heat waste that there will be severe LED chip are ruined.Although LED long lifespans were up to 30000 hours, by the shadow of temperature
Sound is very big, and when operating temperature is higher than 85 degree, LED life-span can sharp-decay.Although current active fan cooling technology energy
Reach and control temperature, but the restricted lifetime of fan in itself well, the life-span of (85 degree or so) fan is generally small 5000 under high temperature
When or so.Therefore, using the LED headlights of active fan cooling technology, actual life is also at 5000 hours or so.Ordinary circumstance
Under, whether the temperature in lamp is too high, and user can not perceive, and can not more make anticipation in advance.If fan is stopped, the short time
Interior temperature improves rapidly, LED can be caused to damage, and can not then provide effective lighting.
Heat caused by LED and its operating current are closely related, and limitation LED drive current can control LED chip temperature
Further rise, but using constant current driver circuit for LED in existing LED car lamp, so existing LED car lamp often occurs
Cause temperature too high because fan breaks down, and driving current causes temperature constantly persistently to raise car light work always, Jin Erzao
Into the damage of LED car lamp.
Utility model content
In view of this, the purpose of this utility model is overcome the deficiencies in the prior art, there is provided one kind has temperature pre-warning
The LED car lamp of defencive function, the LED car lamp can not only ensure can still make in the case of normal work in fan
LED headlights are luminous for a long time, and can recover LED headlight script brightness after fan is changed.
To realize object above, the utility model adopts the following technical scheme that：It is a kind of with temperature pre-warning defencive function
LED car lamp, including LED light emitting sources, temperature sensor, input circuit, current adjustment drive circuit and output circuit, wherein, institute
Temperature sensor is stated to be arranged on the lamppost of LED car lamp, the output end and temperature sensor of the input circuit respectively with it is described
The input of current adjustment drive circuit is connected, the output end of the current adjustment drive circuit and the input phase of output circuit
Connection, the output end of the output circuit electrically connect with LED light emitting sources；The temperature sensor gathers the temperature letter of lamppost in real time
Breath, and the temperature information is converted into electric signal and sends adjustable current drive circuit to, the adjustable current drive circuit according to
The size of the electric signal regulation output current received is to adjust the brightness of LED light emitting sources.
Preferably, the input circuit include electric capacity C3, resistance R3 and R4, the external DC voltage in electric capacity C3 one end,
The other end is grounded；After the resistance R3 and R4 series connection, the external DC voltage in one end, other end ground connection, the input circuit it is defeated
Go out end between resistance R3 and R4.
Preferably, the current adjustment drive circuit include MAX16802 chips, model SI3458DV FET,
Resistance R2, R5, R6, electric capacity C4, C5 and C6；The MAX16802 chips have 8 pins, wherein, the 1st pin and input circuit
Output end be connected, the 2nd pin is grounded by resistance R5, and the 2nd pin also passes through resistance R6 and the cathode output end of output circuit
It is connected, the 4th pin is grounded by electric capacity C6, and the 6th pin is connected with the grid of the FET, the leakage of the FET
Pole is connected with the input of the output circuit.
Preferably, it is additionally provided with resistance R1 between the 6th pin of the MAX16802 chips and the grid of FET.
Preferably, the temperature sensor has 3 pins, wherein, the 1st external direct current of pin of the temperature sensor
Voltage, external dc voltage are powered by the 1st pin for the temperature sensor, the 3rd pin ground connection of the temperature sensor,
2nd pin of the temperature sensor is the useful signal output pin of sensor collection.
Preferably, the 2nd pin of the temperature sensor is connected with the 4th pin of the MAX16802 chips, described
Resistance R7 is additionally provided between 2nd pin of temperature sensor and the 4th pin of MAX16802 chips.
Preferably, in addition to resistance R8, R9 and R10, wherein, one end ground connection after resistance R8 and R10 parallel connection, the other end point
It is not connected with resistance R9 one end and the source electrode of the FET；The other end of the resistance R9 and the MAX16802 chips
The 4th pin connection.
Preferably, the resistance of the resistance R7 is 10k Ω, and resistance R8 resistance is 0.1 Ω, and resistance R9 resistance is 20k
Ω, resistance R10 resistance are 0.1 Ω.
Preferably, the output circuit is made up of electric capacity C1, C2, C7, inductance L1 and diode D1, wherein, the inductance
The drain electrode of L1 one end and diode D1 anode with the FET is connected, the other end and the output electricity of the inductance L1
The cathode output end on road is connected, and the negative electrode of the diode D1 is connected with the cathode output end of the output circuit；It is described
One end after electric capacity C1, C2 and C7 three are in parallel two-by-two electrically connect with the cathode output end of output circuit, and the other end is electric with output
The cathode output end electrical connection on road.
Preferably, the temperature sensor is LM35 temperature sensors.
The utility model uses above technical scheme, the LED car lamp with temperature pre-warning defencive function, including LED
Light emitting source, temperature sensor, input circuit, current adjustment drive circuit and output circuit, wherein, the temperature sensor is set
On the lamppost of LED car lamp, the temperature sensor gathers the temperature information of lamppost in real time, and the temperature information is converted into electricity
Signal sends adjustable current drive circuit to, and the adjustable current drive circuit adjusts output current according to the electric signal received
Size, reach the purpose of control LED light emitting source input current sizes.The utility model LED car lamp is capable of actively monitoring car light
Temperature and according to the input current of temperature adjustment LED light emitting sources, so as to be protected to LED car lamp.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the operation principle schematic diagram of the utility model LED car lamp；
Fig. 2 is the circuit diagram of the utility model LED car lamp.
In figure：1st, LED light emitting sources；2nd, temperature sensor；3rd, input circuit；4th, current adjustment drive circuit；5th, output electricity
Road；6th, external dc voltage.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
As depicted in figs. 1 and 2, the utility model provides a kind of LED car lamp with temperature pre-warning defencive function, including
LED light emitting sources, temperature sensor, input circuit, current adjustment drive circuit and output circuit, wherein, the temperature sensor
It is arranged on the lamppost of LED car lamp, the output end and temperature sensor of the input circuit drive with the current adjustment respectively
The input of circuit is connected, and the output end of the current adjustment drive circuit is connected with the input of output circuit, described defeated
The output end for going out circuit electrically connects with LED light emitting sources；The temperature sensor gathers the temperature information of lamppost in real time, and by the temperature
Degree information is converted into electric signal and sends adjustable current drive circuit to, and the adjustable current drive circuit is according to the electric signal received
The size of output current is adjusted to adjust the brightness of LED light emitting sources.
Specifically, the input circuit include electric capacity C3, resistance R3 and R4, the external DC voltage in electric capacity C3 one end,
The other end is grounded；After the resistance R3 and R4 series connection, the external DC voltage in one end, other end ground connection, the input circuit it is defeated
Go out end between resistance R3 and R4.
Preferably, the current adjustment drive circuit include MAX16802 chips, model SI3458DV FET,
Resistance R2, R5, R6, electric capacity C4, C5 and C6；The MAX16802 chips have 8 pins, wherein, the 1st pin and input circuit
Output end be connected, the 2nd pin is grounded by resistance R5, and the 2nd pin also passes through resistance R6 and the cathode output end of output circuit
It is connected, the 4th pin is grounded by electric capacity C6, and the 6th pin is connected with the grid of the FET, the leakage of the FET
Pole is connected with the input of the output circuit.
Further, it is additionally provided with resistance R1 between the 6th pin of the MAX16802 chips and the grid of FET.
It should be noted that the temperature sensor is LM35 temperature sensors, the temperature sensor has 3 and drawn
Pin, wherein, the 1st external DC voltage of pin of the temperature sensor, external dc voltage is the temperature by the 1st pin
Sensor is powered, the 3rd pin ground connection of the temperature sensor, and the 2nd pin of the temperature sensor is sensor collection
Useful signal output pin.2nd pin of the temperature sensor is connected with the 4th pin of the MAX16802 chips, in institute
State and be additionally provided with resistance R7 between the 2nd pin of temperature sensor and the 4th pin of MAX16802 chips.
It should be added that in addition to resistance R8, R9 and R10, wherein, the termination after resistance R8 and R10 parallel connection
Ground, the other end are connected with resistance R9 one end and the source electrode of the FET respectively；The other end of the resistance R9 with it is described
The 4th pin connection of MAX16802 chips.The resistance of the resistance R7 is 10k Ω, and resistance R8 resistance is 0.1 Ω, resistance R9
Resistance be 20k Ω, resistance R10 resistance is 0.1 Ω.
Need further to remark additionally, the output circuit is by electric capacity C1, C2, C7, inductance L1 and diode D1 groups
Into, wherein, the drain electrode of one end of the inductance L1 and diode D1 anode with the FET is connected, the inductance L1
The other end be connected with the cathode output end of output circuit, the positive pole of the negative electrode and the output circuit of the diode D1 is defeated
Go out end to be connected；One end after electric capacity C1, C2 and C7 three is in parallel two-by-two electrically connects with the cathode output end of output circuit,
The other end electrically connects with the cathode output end of output circuit.
As a kind of preferred embodiment of the present utility model, in actual use, external dc voltage is 24v, resistance
R1 resistance is 1 Ω, and resistance R2 resistance is 330 Ω, and resistance R3 resistance is 499k Ω, and resistance R4 resistance is 73.2k Ω,
Resistance R5 resistance is 11k Ω, and resistance R6 resistance is 392k Ω；Electric capacity C1 capacitance is 0.1uF, electric capacity C2 capacitance
For 4.7uF, electric capacity C3 capacitance is 4.7uF, and electric capacity C4 capacitance is 0.1uF, and electric capacity C5 capacitance is 0.1uF, electricity
The capacitance for holding C6 is 470pF, and electric capacity C7 capacitance is 4.7uF；Inductance L1 inductance value is 2.2uH；Diode D1 is
B160 diodes.
At work, the 1st pin of the MAX16802 chips is connected the present embodiment with the output end of input circuit, and the 2nd
Pin is connected by resistance R6 with the cathode output end of output circuit, and the 4th pin passes through resistance R7 and the signal of temperature sensor
Output end connects, and the temperature information collected is converted into the electricity that electric signal sends MAX16802 chips to by the temperature sensor
Influenza induction signal connection end (the 6th pin), the output currents of MAX16802 chips enter the grid of FET, it is amplified from
Drain electrode output, drain electrode is connected with output circuit, so that electric current is output on LED light emitting sources through output circuit.
LED car lamp is in normal work, because fan and fin are constantly cooling to car light, so now LED
The input current of light emitting source remains unchanged, and LED luminous quantities are big；After fan long-time service failure, because radiating effect is poor,
LED car lamp temperature can raise, and now, current adjustment drive circuit can drop according to the electric signal that the temperature sensor received transmits
The input current size of low LED light emitting sources, make the reduction of LED luminous quantities, and then reduce caloric value, reach protection LED, prevent LED
The purpose being burned.After user more finishes changing new fan to car light, current adjustment drive circuit can pass according to the temperature received
The electric signal of sensor transmission improves the input current size of LED light emitting sources, increases LED luminous quantities, and LED car lamp and can is recovered
To script brightness.
A kind of LED car lamp with temperature pre-warning defencive function of the utility model, including LED light emitting sources, temperature sensor,
Input circuit, current adjustment drive circuit and output circuit, wherein, the temperature sensor is arranged on the lamppost of LED car lamp,
The temperature sensor gathers the temperature information of lamppost in real time, and the temperature information is converted into electric signal and sends adjustable current to
Drive circuit, the adjustable current drive circuit adjust the size of output current according to the electric signal received, reach control LED hairs
The purpose of light source input current size.The utility model LED car lamp is capable of the temperature of actively monitoring car light, and according to temperature adjustment
The input current of LED light emitting sources, so as to be protected to LED car lamp.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (10)
- A kind of 1. LED car lamp with temperature pre-warning defencive function, it is characterised in that including LED light emitting sources, temperature sensor, Input circuit, current adjustment drive circuit and output circuit, wherein, the temperature sensor is arranged on the lamppost of LED car lamp, Input of the output end and temperature sensor of the input circuit respectively with the current adjustment drive circuit is connected, the electricity Flow the output end of adjustable drive circuit with the input of output circuit to be connected, output end and the LED of the output circuit light Source electrically connects；The temperature sensor gathers the temperature information of lamppost in real time, and the temperature information is converted into electric signal transmission Give adjustable current drive circuit, the adjustable current drive circuit adjusts the size of output current to adjust according to the electric signal received The brightness of whole LED light emitting sources.
- 2. the LED car lamp according to claim 1 with temperature pre-warning defencive function, it is characterised in that the input electricity Road includes electric capacity C3, resistance R3 and R4, the external DC voltage in electric capacity C3 one end, other end ground connection；The resistance R3 and R4 After series connection, the external DC voltage in one end, the other end is grounded, and the output end of the input circuit is located between resistance R3 and R4.
- 3. the LED car lamp according to claim 2 with temperature pre-warning defencive function, it is characterised in that the electric current can Drive circuit is adjusted to include MAX16802 chips, FET, resistance R2, R5, R6, electric capacity C4, C5 and C6；The MAX16802 cores Piece has 8 pins, wherein, the 1st pin is connected with the output end of input circuit, and the 2nd pin is grounded by resistance R5, and the 2nd draws Pin is also connected by resistance R6 with the cathode output end of output circuit, and the 4th pin is grounded by electric capacity C6, the 6th pin with it is described The grid of FET is connected, and the drain electrode of the FET is connected with the input of the output circuit.
- 4. the LED car lamp according to claim 3 with temperature pre-warning defencive function, it is characterised in that described Resistance R1 is additionally provided between 6th pin of MAX16802 chips and the grid of FET.
- 5. the LED car lamp according to claim 3 with temperature pre-warning defencive function, it is characterised in that the temperature passes Sensor has 3 pins, wherein, the 1st external DC voltage of pin of the temperature sensor, external dc voltage passes through the 1st Pin is powered for the temperature sensor, the 3rd pin ground connection of the temperature sensor, the 2nd pin of the temperature sensor For the useful signal output pin of sensor collection.
- 6. the LED car lamp according to claim 5 with temperature pre-warning defencive function, it is characterised in that the temperature passes 2nd pin of sensor is connected with the 4th pin of the MAX16802 chips, the temperature sensor the 2nd pin and Resistance R7 is additionally provided between 4th pin of MAX16802 chips.
- 7. the LED car lamp according to claim 6 with temperature pre-warning defencive function, it is characterised in that also including resistance R8, R9 and R10, wherein, one end after resistance R8 and R10 parallel connection ground connection, the other end one end with resistance R9 and the field respectively The source electrode connection of effect pipe；The other end of the resistance R9 is connected with the 4th pin of the MAX16802 chips.
- 8. the LED car lamp according to claim 7 with temperature pre-warning defencive function, it is characterised in that the resistance R7 Resistance be 10k Ω, resistance R8 resistance is 0.1 Ω, and resistance R9 resistance is 20k Ω, and resistance R10 resistance is 0.1 Ω.
- 9. the LED car lamp according to claim 3 with temperature pre-warning defencive function, it is characterised in that the output electricity Road includes electric capacity C1, C2, C7, inductance L1 and diode D1, wherein, one end of the inductance L1 and diode D1 anode with The drain electrode of the FET is connected, and the other end of the inductance L1 is connected with the cathode output end of output circuit, and described two Pole pipe D1 negative electrode is connected with the cathode output end of the output circuit；Electric capacity C1, C2 and C7 three is two-by-two after parallel connection One end electrically connected with the cathode output end of output circuit, the other end electrically connects with the cathode output end of output circuit.
- 10. the LED car lamp with temperature pre-warning defencive function according to any one of claim 1 to 9, it is characterised in that The temperature sensor is LM35 temperature sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720955026.0U CN207065461U (en) | 2017-08-01 | 2017-08-01 | A kind of LED car lamp with temperature pre-warning defencive function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720955026.0U CN207065461U (en) | 2017-08-01 | 2017-08-01 | A kind of LED car lamp with temperature pre-warning defencive function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207065461U true CN207065461U (en) | 2018-03-02 |
Family
ID=61518994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720955026.0U Expired - Fee Related CN207065461U (en) | 2017-08-01 | 2017-08-01 | A kind of LED car lamp with temperature pre-warning defencive function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207065461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611973A (en) * | 2019-08-20 | 2019-12-24 | 珠海科德电子有限公司 | LED driver with temperature detection |
-
2017
- 2017-08-01 CN CN201720955026.0U patent/CN207065461U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611973A (en) * | 2019-08-20 | 2019-12-24 | 珠海科德电子有限公司 | LED driver with temperature detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203489158U (en) | Energy-saving street lamp | |
| CN104421755A (en) | Intelligent LED street lamp and control method for LED street lamps | |
| CN203413481U (en) | Intelligent light-emitting diode (LED) street lamp | |
| CN207065461U (en) | A kind of LED car lamp with temperature pre-warning defencive function | |
| CN201173420Y (en) | Human body infra-red ray induction solar lamp for lawn | |
| CN205305179U (en) | But LED street lamp control system of intelligent regulation luminance | |
| CN205560600U (en) | Supplementary traffic control's solar energy intelligence street lamp system | |
| CN201238410Y (en) | LED solar street lamp controller | |
| CN202261948U (en) | Intelligent controller structure of solar LED street lamp | |
| CN201892144U (en) | Acoustic and light control LED street lamp | |
| CN202652650U (en) | Hybrid integrated LED constant-current power circuit | |
| CN202979366U (en) | Temperature control type pwm linear constant current led drive circuit | |
| CN202857082U (en) | High efficiency intelligent type solar energy LED street lamp lighting system | |
| CN206592323U (en) | A kind of DC fan for stage lighting high efficiency and heat radiation controls circuit | |
| CN200950682Y (en) | Novel highly effective low cost constant-current driver for LED lighting lamp | |
| CN204986698U (en) | High reliability LED street lamp with surge electrostatic protection function | |
| CN204559946U (en) | Parking lot LED illumination System | |
| CN205610991U (en) | Outdoor energy -conserving lighting control system | |
| CN203052503U (en) | Light emitting diode (LED) energy-saving streetlamp combining wind energy with solar energy | |
| CN203162823U (en) | Low-carbon Internet-of-Things street lamp | |
| CN204420861U (en) | Street lamp | |
| CN203859895U (en) | Light modulation control circuit applied to silicon controlled rectifier light modulation and LED lamp | |
| CN205864791U (en) | A kind of energy-saving LED safe driving circuit | |
| CN202817734U (en) | Short-circuit protection circuit for electronic switch | |
| CN202262010U (en) | ECL dimmable energy-saving lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20210801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |