CN208986825U - A kind of circuit and driving power improving power on time - Google Patents
A kind of circuit and driving power improving power on time Download PDFInfo
- Publication number
- CN208986825U CN208986825U CN201821592490.9U CN201821592490U CN208986825U CN 208986825 U CN208986825 U CN 208986825U CN 201821592490 U CN201821592490 U CN 201821592490U CN 208986825 U CN208986825 U CN 208986825U
- Authority
- CN
- China
- Prior art keywords
- circuit
- time
- capacitor
- power
- resistance
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B44/00—Circuit arrangements for operating electroluminescent light sources
-
- 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
The utility model relates to a kind of circuits and driving power for improving power on time, comprising: control IC, starting adjust circuit, switching circuit, power supply circuit and charging capacitor；The output end of busbar voltage after controlling the high-voltage signal input terminal connection rectification of IC, the feeder ear connection starting for controlling IC adjust circuit, and starting adjusts circuit and is separately connected switching circuit and charging capacitor, and switching circuit and charging capacitor are further connected to power supply circuit.The utility model is started by setting to be adjusted circuit and can effectively shorten starting time of power supply in power initiation, is solved because power on time is different or too long the LED light in load is caused to light uncoordinated phenomenon.
Description
Technical field
The utility model relates to the technical fields of driving power, more specifically to a kind of raising power on time
Circuit and driving power.
Background technique
LED gradually replaces traditional lighting source, has been more and more widely used in each lighting area.With
Social and economic construction it is increasingly developed, urban road basis illumination construction level have become urban development speed speed and water
The important symbol of flat height is also related to energy conservation whether illuminating engineering quality good or not only influences the safety of vehicle and pedestrian
Can environmental objective be realized.Current China's road lighting energy consumption is extremely serious, and existing main problem has illumination system layout super
Mark, lighting control mode are backward, lighting energy saving theory is wrong, lighting energy saving measure is single, it is often more important that energy when occurring abnormal
The problem of timely protection power source itself and LED light etc..As you know using mains lighting supply outdoors, either in the hot summer
Season, or in cold winter, the machine of opening will be powered in input full voltage range, LED lights this process no more than
500mS.If power on open the street lamp on machine overlong time or whole road power on open that the machine time has it is fast, have it is slow, it appears that one
Point is all uncoordinated, this obviously gives the beautiful landscape in one of city with " the building a conservation-minded society, Green illumination " proposed
Lineation thought is runed counter to.
LED illumination driving power has necessarily become industry focus of attention, either outdoor lighting or room lighting all
At the mainstream of illuminating industry, however will occur dazzling driving power on the market, this is just to client in selection electricity
Increase many puzzlements when source, even walks many detours, and the comparison of some electric properties to driving power, assessment
Whether meet some laws, the requirement of regulation, EM C requirement, lightning surge requirement, the waterproofing grade requirement of IP, open the machine time and want
It asks, especially the difference of the voltage used in some country variant each department, opens the machine time with regard to different.Some driving electricity
Source may meet the requirements in the 180-305Vac input Shi Qiji time, but just not meet in the 90-150Vac input Shi Qiji time
It is required that more prominent especially under low temperature, lower pressure, what is had may be more than to start for 10 seconds, and some wants 60 seconds, or even opens
It can not move, LED light caused not light normally.Several driving powers are needed in a lamps and lanterns having to drive a few paths of LEDs lamps,
But if starting Time Inconsistency, the street lamp that will be had is first bright, and some is bright all the way or after a few street lamps, and appearance is not assisted seriously
It adjusts.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of raising electricity
The circuit and driving power of source starting time.
A kind of power on time is improved the technical scheme adopted by the utility model to solve the technical problem is as follows: constructing
Circuit, comprising: control IC, starting adjust circuit, switching circuit, power supply circuit and charging capacitor；
The output end of busbar voltage after the high-voltage signal input terminal connection rectification of the control IC, the confession of the control IC
Electric end connects the starting and adjusts circuit, and the starting adjusts circuit and is separately connected the switching circuit and charging capacitor, described
Switching circuit and the charging capacitor are further connected to the power supply circuit.
Preferably, it includes suppression circuit and leadage circuit that the starting, which adjusts circuit,；
The first end of the suppression circuit is separately connected the feeder ear of the control IC and the first end of the charging capacitor,
The second end of the suppression circuit connects the switching circuit；
The leadage circuit is connected in parallel with the charging capacitor.
Preferably, the suppression circuit includes: diode D2；
The cathode of the diode D2 is separately connected the feeder ear of the control IC and the first end of the charging capacitor, institute
The anode for stating diode D2 connects the switching circuit；
The cathode of the diode D2 is the first end of the suppression circuit, and the anode of the diode D2 is the inhibition
The second end of circuit.
Preferably, the leadage circuit includes: resistance R4；
The first end of the resistance R4 is connected between the first end of the charging capacitor and the feeder ear of the control IC,
The second end of the resistance R4 is grounded.
Preferably, the switching circuit includes switching tube, voltage-stabiliser tube ZD1 and resistance R3；
The first end of the switching tube connects the second end of the suppression circuit, described in the second end connection of the switching tube
The first end of power supply circuit, the third end of the switching tube connect the cathode of the voltage-stabiliser tube ZD1, the sun of the voltage-stabiliser tube ZD1
Pole connects the second end of the power supply circuit, and the first end of the resistance R3 connects the second end of the switching tube, the resistance
The second end of R3 is connected between the third end of the switching tube and the cathode of the voltage-stabiliser tube ZD1.
Preferably, the switching tube is triode Q3；
The first end of the extremely described switching tube of transmitting of the triode Q3, the current collection of the triode Q3 is extremely described to be opened
The second end of pipe is closed, the base stage of the triode Q3 is the third end of the switching tube.
Preferably, the power supply circuit includes: the auxiliary winding of capacitor C1, resistance R2, diode D2 and transformer；
The first end of the resistance R2 and the first end of the capacitor C1 are connected to the second end of the switching tube, institute together
The second end for stating resistance R2 connects the cathode of the diode D2, and the anode of the diode D2 connects the auxiliary winding
First end, the second end of the auxiliary winding connect the second end of the charging capacitor, and the second end of the capacitor C1 connects institute
It states the anode of voltage-stabiliser tube ZD1 and is connected to the second end of the charging capacitor, the second end of the charging capacitor is also grounded；
The first end of the resistance R2 and the first end of the capacitor C1 are the first end of the power supply circuit, the capacitor
The connecting pin of the anode of the second end of C2 and the voltage-stabiliser tube ZD1 is the power supply circuit second end, the of the auxiliary winding
Two ends are the third end of the power supply circuit.
Preferably, further includes: be connected on the output end of the busbar voltage and the high-voltage signal input terminal of the control IC
Between current-limiting resistance R1.
Preferably, further includes: capacitor C3；
The first end of the capacitor C3 connects the feeder ear of the control IC, the second end ground connection of the capacitor C3.
The utility model also provides a kind of driving power, including the above-described circuit for improving power on time.
The circuit for implementing the raising power on time of the utility model, has the advantages that the utility model is logical
Starting time of power supply can be effectively shortened in power initiation by crossing setting starting and adjusting circuit, be solved because of power on time
It is different or it is too long cause load on LED light light uncoordinated phenomenon.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is a kind of structural schematic diagram of circuit for improving power on time provided by the embodiment of the utility model；
Fig. 2 is a kind of schematic diagram of circuit for improving power on time provided by the embodiment of the utility model.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing carries out
It is described in detail.
In order to solve LED light driving power starting up's Time Inconsistency or starting up's overlong time, cause
LED light lights uncoordinated problem, and the utility model provides a kind of starting up's time that can effectively shorten driving power
Circuit, which can guarantee to make in the input range of full voltage (90~305V) starting up's time of driving power can
To meet the condition for lighting LED light unanimously.
With reference to Fig. 1, for a kind of structural representation for the circuit for improving power on time provided by the embodiment of the utility model
Figure.The circuit of the raising power on time is applicable to the driving power of LED light, the drive of such as indoor or outdoor LED street lamp
Dynamic power supply, while being also applicable to the driving power of internet of things net controller 150W street lamp.
As shown in Figure 1, this it is a kind of improve power on time circuit include: control IC 10, starting adjust circuit 20,
Switching circuit 30, power supply circuit 50 and charging capacitor 40 (C2).
Specifically, the output end of the busbar voltage after the high-voltage signal input terminal connection rectification of control IC 10, controls IC
10 feeder ear connection starting adjusts circuit 20, and starting adjusts circuit 20 and is separately connected switching circuit 30 and charging capacitor 40
(C2), switching circuit 30 and charging capacitor 40 (C2) are further connected to power supply circuit 50.
In the utility model embodiment, it includes suppression circuit and leadage circuit which, which adjusts circuit 20,.
The first end of suppression circuit is separately connected the feeder ear of control IC 10 and the first end of charging capacitor 40 (C2), suppression
The second end connection switch circuit 30 of circuit processed；Leadage circuit is connected in parallel with charging capacitor 40 (C2).
The utility model passes through the circuit that the raising power on time is arranged, when the high-voltage signal input of control IC 10
When termination receives the busbar voltage of the output end output of busbar voltage (i.e. driving power has input voltage input), IC 10 is controlled
After inside is handled, initial start-up voltage is exported from its feeder ear and is filled to charging capacitor 40 (C2) to charging capacitor 40 (C2)
Electricity, and the utility model adjusts circuit 20 by the way that starting is arranged between the feeder ear and charging capacitor 40 (C2) of control IC 10,
The initial start-up voltage of the feeder ear for making to control IC 10 on startup output can be made only to charge to charging capacitor 40 (C2),
It avoids the forming circuit of initial start-up voltage access switch circuit 30 that the charging time is caused to lengthen, is opened so as to effectively shorten booting
The dynamic time, further, which adjusts circuit 20 can also be after driving power power-off by the both ends charging capacitor 40 (C2)
Voltage is quickly released, and provides the faster time for starting up next time, further shortens the power supply starting up time.
With reference to Fig. 2, the schematic diagram of the circuit of power on time is improved for the utility model embodiment.As shown in Fig. 2,
In this embodiment, suppression circuit includes: diode D2.
The cathode of diode D2 is separately connected the feeder ear of control IC 10 and the first end of charging capacitor 40 (C2), two poles
The anode connection switch circuit 30 of pipe D2；The cathode of diode D2 is the first end of suppression circuit, and the anode of diode D2 is suppression
The second end of circuit processed.
In the utility model embodiment, which includes: resistance R4.The first end of resistance R4 is connected to charging capacitor
Between the first end of 40 (C2) and the feeder ear for controlling IC 10, the second end of resistance R4 is grounded.
In the utility model embodiment, which includes switching tube, voltage-stabiliser tube ZD1 and resistance R3.
The second end of the first end connection suppression circuit of switching tube, the of the second end connection power supply circuit 50 of switching tube
One end, the cathode of the third end connection voltage-stabiliser tube ZD1 of switching tube, the second end of the anode connection power supply circuit 50 of voltage-stabiliser tube ZD1,
The second end of the first end connection switch pipe of resistance R3, the second end of resistance R3 are connected to third end and the voltage-stabiliser tube of switching tube
Between the cathode of ZD1.
Optionally, which can be triode Q3.Wherein, the first end of the transmitting extremely switching tube of triode Q3,
The second end of the current collection of triode Q3 extremely switching tube, the base stage of triode Q3 are the third end of switching tube.
In the utility model embodiment, which includes: capacitor C1, resistance R2, diode D2 and transformer
Auxiliary winding T1-A.
The first end of resistance R2 and the first end of capacitor C1 are connected to the second end of switching tube together, and the second of resistance R2
The cathode of end connection diode D2, the first end of the anode connection auxiliary winding T1-A of diode D2, the of auxiliary winding T1-A
Two ends connect the second end of charging capacitor 40 (C2), and the anode of the second end connection voltage-stabiliser tube ZD1 of capacitor C1 is simultaneously connected to charging
The second end of the second end of capacitor 40 (C2), charging capacitor 40 (C2) is also grounded；The first of the first end of resistance R2 and capacitor C1
End is the first end of power supply circuit 50, and the connecting pin of the anode of the second end and voltage-stabiliser tube ZD1 of capacitor C2 is power supply circuit 50 the
Two ends, the second end of auxiliary winding T1-A are the third end of power supply circuit 50.
In the utility model embodiment, further, the circuit of the raising power on time further include: be connected on bus
Current-limiting resistance R1 between the output end of voltage and the high-voltage signal input terminal for controlling IC 10.
In the utility model embodiment, further, the circuit of the raising power on time further include: capacitor C3.Electricity
Hold the feeder ear of the first end connection control IC 10 of C3, the second end ground connection of capacitor C3.
As shown in Fig. 2, the circuit of the raising power on time is using grace intelligence Pu PFC+ inverse-excitation type integrated manipulator
Topological structure.Wherein, control IC 10 can use grace intelligence Pu SSL8516T.It will of course be understood that ground, control IC 10 may be used also
Can realize that the IC of same function, the utility model are not limited specifically using other.
As shown in Fig. 2, (have input voltage input) when power input energization (not shown), by protective tube and
After EMC filter circuit (protective tube and EMC filter circuit are not shown), then rectified, institute in the voltage i.e. Fig. 2 on bus
The voltage input on HV point shown is controlling inside IC 10 to the high-voltage signal input terminal (the HV foot of the 16th foot) of control IC 10
Feeder ear (the VCC foot of the 1st foot) after processing for control IC 10 forms initial start-up voltage, and the initial start-up voltage is directly right
The charging capacitor 40 (C2) that connects on the feeder ear of IC 10 is controlled to charge, simultaneously because the presence of diode D2, at this time two
The anode of pole pipe D2 connects low potential, and cathode connects high potential, so diode D2 is in off state, so that initial start is electric
Pressure only charges to charging capacitor 40 (C2), until the charging voltage on charging capacitor 40 (C2) reaches the confession of control IC 10
When the initial voltage at electric end, control IC 10 starts to start, and after control IC 10 starts, by the auxiliary winding T1-A of transformer
Operating voltage is provided to control IC 10, driving power is started to work, and then LED light is lighted.Further, due to setting
Resistance R4, so that driving power can make the voltage at the both ends charging capacitor 40 (C2) quickly release by resistance R4 after a loss of power, into
And to provide the faster time when starting up next time.
Here, the utility model can to effectively shorten the opening of driving power due to the diode D2 and resistance R4 of setting
Machine starts the time.If not increasing the two devices in circuit it can be seen from Fig. 2, that is to say, that the of control IC 40
1 foot (VCC foot), the anode of charging capacitor 40 (C2), triode Q3 emitter be consolidated network, during powering on starting up
Voltage not only charges to external charging capacitor 40 (C2) on the 1st foot (VCC foot) of IC 40, while also some charging electricity
Emitter junction, voltage-stabiliser tube ZD1 to ground forming circuit of the stream by triode Q3, that is to say, that emitter junction, the voltage-stabiliser tube of triode Q3
The presence of ZD1, which is equivalent to, has connect an equivalent resistance, the size of this equivalent resistance resistance value depending on triode Q3 emitter junction,
The size of voltage-stabiliser tube ZD1 reverse leakage current, because the reverse current of voltage-stabiliser tube ZD1 is formed by minority carrier, instead
It is influenced by temperature to electric current very big.The reverse current of temperature more high voltage stability pipe ZD1 is bigger, and equivalent resistance with regard to smaller, open by booting
The dynamic time is longer, causes to drive LED light lighting time longer.By contrast test, Test driver at identical conditions
The starting up of power supply has added the two devices to differ 300ms or so with the two devices are not added the time, that is to say, that has added this
Tested either under high temperature in input voltage (90-305V) range after two devices or low temperature under Test driver power supply open
Machine starts time≤450ms, and does not add either testing under high temperature in input voltage (90-305V) range for that two devices
Or Test driver power supply opens the machine time >=750ms under low temperature.Starting up's time after raising is peace regardless of driving power
Starting up's time that still several driving powers are mounted in a lamps and lanterns on whole street lamp all meets: in≤450ms
LED light is bright, and during this period of time the visual discrimination of starting up people not come out, to solve starting up's time not
One, LED light lights the uncoordinated phenomenon of speed.
The utility model additionally provides a kind of driving power, which includes raising power on time above-mentioned
Circuit.Wherein, which includes but is not limited to LED drive power, the driving power of such as indoor or outdoor LED street lamp.
Above embodiments are only to illustrate the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, the protection scope of the utility model can not be limited.It is all with
The equivalent changes and modifications that the utility model claims range is done, should belong to the utility model claims covers model
It encloses.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of circuit for improving power on time characterized by comprising control IC, starting adjust circuit, switch electricity
Road, power supply circuit and charging capacitor；
The output end of busbar voltage after the high-voltage signal input terminal connection rectification of the control IC, the feeder ear of the control IC
It connects the starting and adjusts circuit, the starting adjusts circuit and is separately connected the switching circuit and charging capacitor, the switch
Circuit and the charging capacitor are further connected to the power supply circuit.
2. the circuit according to claim 1 for improving power on time, which is characterized in that the starting adjusts circuit packet
Include suppression circuit and leadage circuit；
The first end of the suppression circuit is separately connected the feeder ear of the control IC and the first end of the charging capacitor, described
The second end of suppression circuit connects the switching circuit；
The leadage circuit is connected in parallel with the charging capacitor.
3. the circuit according to claim 2 for improving power on time, which is characterized in that the suppression circuit includes:
Diode D2；
The cathode of the diode D2 be separately connected it is described control IC feeder ear and the charging capacitor first end, described two
The anode of pole pipe D2 connects the switching circuit；
The cathode of the diode D2 is the first end of the suppression circuit, and the anode of the diode D2 is the suppression circuit
Second end.
4. the circuit according to claim 2 for improving power on time, which is characterized in that the leadage circuit includes:
Resistance R4；
The first end of the resistance R4 is connected between the first end of the charging capacitor and the feeder ear of the control IC, described
The second end of resistance R4 is grounded.
5. the circuit according to claim 2 for improving power on time, which is characterized in that the switching circuit includes opening
Guan Guan, voltage-stabiliser tube ZD1 and resistance R3；
The first end of the switching tube connects the second end of the suppression circuit, and the second end of the switching tube connects the power supply
The first end of circuit, the third end of the switching tube connect the cathode of the voltage-stabiliser tube ZD1, and the anode of the voltage-stabiliser tube ZD1 connects
The second end of the power supply circuit is connect, the first end of the resistance R3 connects the second end of the switching tube, the resistance R3's
Second end is connected between the third end of the switching tube and the cathode of the voltage-stabiliser tube ZD1.
6. the circuit according to claim 5 for improving power on time, which is characterized in that the switching tube is triode
Q3；
The first end of the extremely described switching tube of transmitting of the triode Q3, the extremely described switching tube of the current collection of the triode Q3
Second end, the base stage of the triode Q3 is the third end of the switching tube.
7. the circuit according to claim 5 for improving power on time, which is characterized in that the power supply circuit includes:
The auxiliary winding of capacitor C1, resistance R2, diode D2 and transformer；
The first end of the resistance R2 and the first end of the capacitor C1 are connected to the second end of the switching tube, the electricity together
The second end of resistance R2 connects the cathode of the diode D2, and the anode of the diode D2 connects the first of the auxiliary winding
End, the second end of the auxiliary winding connect the second end of the charging capacitor, and the second end connection of the capacitor C1 is described steady
The second end of the anode of pressure pipe ZD1 and the second end for being connected to the charging capacitor, the charging capacitor is also grounded；
The first end of the resistance R2 and the first end of the capacitor C1 are the first end of the power supply circuit, the capacitor C2's
The connecting pin of the anode of second end and the voltage-stabiliser tube ZD1 is the power supply circuit second end, the second end of the auxiliary winding
For the third end of the power supply circuit.
8. the circuit according to claim 1 for improving power on time, which is characterized in that further include: it is connected on described
Current-limiting resistance R1 between the output end of busbar voltage and the high-voltage signal input terminal of the control IC.
9. the circuit according to claim 1 for improving power on time, which is characterized in that further include: capacitor C3；
The first end of the capacitor C3 connects the feeder ear of the control IC, the second end ground connection of the capacitor C3.
10. a kind of driving power, which is characterized in that including the described in any item raising power on time of claim 1-9
Circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821592490.9U CN208986825U (en) | 2018-09-28 | 2018-09-28 | A kind of circuit and driving power improving power on time |
| PCT/CN2019/080577 WO2020062818A1 (en) | 2018-09-28 | 2019-03-29 | Circuit for improving power supply starting time, and driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821592490.9U CN208986825U (en) | 2018-09-28 | 2018-09-28 | A kind of circuit and driving power improving power on time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208986825U true CN208986825U (en) | 2019-06-14 |
Family
ID=66785888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821592490.9U Active CN208986825U (en) | 2018-09-28 | 2018-09-28 | A kind of circuit and driving power improving power on time |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208986825U (en) |
| WO (1) | WO2020062818A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223139A1 (en) * | 2020-05-07 | 2021-11-11 | 深圳市大疆创新科技有限公司 | Power on/off control device and electronic equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013255363A (en) * | 2012-06-07 | 2013-12-19 | Sharp Corp | Starting circuit and power supply device |
| CN206807283U (en) * | 2017-04-28 | 2017-12-26 | 深圳市源尤电源科技有限公司 | A kind of start-up circuit of Switching Power Supply |
-
2018
- 2018-09-28 CN CN201821592490.9U patent/CN208986825U/en active Active
-
2019
- 2019-03-29 WO PCT/CN2019/080577 patent/WO2020062818A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020062818A1 (en) | 2020-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106028567B (en) | A kind of emergency lighting circuit and emergency light | |
| CN102421231B (en) | Energy-saving soft start street lamp control system | |
| CN205883675U (en) | Energy -conserving lighting control system of intelligent building | |
| CN103185265A (en) | LED bulb lamp capable of being automatically turned on/off | |
| CN208986825U (en) | A kind of circuit and driving power improving power on time | |
| CN106879120B (en) | Can simultaneously adjusting brightness of LED lamps and color the anti-lightning road of booting and its method | |
| CN203872387U (en) | Power off non-stroboscopic second gear dimmable LED driving power supply | |
| CN202435701U (en) | Automatic controller for electrodeless lamp serving as streetlamp | |
| CN102448231A (en) | Control circuit of hand-touch-type delayed lighting lamp | |
| CN105142313A (en) | An energy-saving device capable of adjusting brightness of street lamps automatically | |
| CN206674251U (en) | Can simultaneously adjusting brightness of LED lamps and color the anti-lightning road of start | |
| CN205946286U (en) | Energy -conserving street lamp control circuit of wind energy and solar energy power supply | |
| CN205726618U (en) | LLC resonant converter circuit in lamp control system | |
| CN204554564U (en) | Intelligent power-saving street lamp | |
| CN208112272U (en) | Solar LED Projecting Lamp | |
| CN207720022U (en) | A kind of low-power consumption starts control circuit and power supply | |
| CN105611669A (en) | Non-flicker and soundless driving circuit | |
| CN203136234U (en) | Controller for solar street lamp | |
| CN202231919U (en) | Energy-saving soft start street lamp control system | |
| CN207880650U (en) | A kind of induction control illuminating street lamp | |
| CN205212531U (en) | Intelligence LED display screen power | |
| CN205491369U (en) | Lamps and lanterns dimmer circuit | |
| CN2812500Y (en) | Energy-saving lamp circuit | |
| CN205793557U (en) | A kind of indoor lamp intelligent energy-saving control device | |
| CN204131813U (en) | A kind of fluorescent lamp light adjusting circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |