CN105163424B - The White LED light-emitting device that alternating current directly drives - Google Patents
The White LED light-emitting device that alternating current directly drives Download PDFInfo
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- CN105163424B CN105163424B CN201510498245.6A CN201510498245A CN105163424B CN 105163424 B CN105163424 B CN 105163424B CN 201510498245 A CN201510498245 A CN 201510498245A CN 105163424 B CN105163424 B CN 105163424B
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- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The present invention relates to white light LEDs (light emitting diode) light-emitting devices.Caused by LED light emission device being directly driven for the prior art alternating current the shortcomings that light-emitting flash, disclose a kind of White LED light-emitting device that alternating current directly drives, the LED module for coordinating luminescent lifetime controllable LED to constitute, the luminous twilight sunset of LED can be utilized further to overcome LED scintillations caused by alternating current, and the efficiency of LED light emission device is improved, extend the service life of LED.The LED light emission device circuit of the present invention is made of the cascade of n grade LED modules, and voltage is switched off and on by what the appropriate preset often level-one LED module of sampling unit corresponded to switch unit, scintillation occurs when can be to avoid AC voltage fluctuations.Especially with luminescent lifetime controllable LED, scintillation is further overcomed.With the increase of LED module quantity, effect is more obvious.
Description
The present invention is a divisional application, and the applying date of original application is：On December 31st, 2011；Original applying number is：
201110459628.4；Former innovation and creation are entitled：The White LED light-emitting device that alternating current directly drives.
Technical field
The present invention relates to white light LEDs (light emitting diode) light-emitting devices, the more particularly to alternating current of White LED light-emitting device
Direct driving technologies.
Background technology
LED is expected to become a new generation's illumination with the advantages that its energy-saving and environmental protection, long lifespan as a kind of New Solid light source
Light source.It is well known that existing LED is nearly all to use DC powered, and our production and living electricity consumption is alternating current.Cause
This needs a power supply changeover device, alternating current is converted to direct current in LED product used at present.Power supply changeover device
It introduces, brings many negative effects.First, service life of the service life of power supply changeover device well below LED itself so that lighting device
Service life shorten；Second, power supply changeover device can reduce the efficiency of light-emitting device；Third, in low-power applications, power supply turns
Parallel operation can cause the increase of the decline and current total harmonic distortion of power factor.In order to give full play to the advantage of semiconductor lighting,
Current research hotspot can be become with the LED light emission device that alternating current directly drives.
It is whole according to reverse parallel connection or bridge-type using plurality of LEDs component mostly in existing AC LED public technology
The circuit topological structure of stream is formed by connecting, to meet the driving requirement of AC power.But alternating current is according to certain frequency
Cyclic fluctuation, due to the presence of LED itself cut-in voltages, when instantaneous voltage is more than cut-in voltage, LED can just be connected simultaneously
It shines.Conversely, LED be off it is non-luminous.This circuit makes the luminous efficiency of LED very low, and with alternating voltage wave
It is dynamic light-emitting flash phenomenon occur.
International monopoly WO2004/023568A1 " LIGHT-EMITTINGDEVICEHAVING LIGHT-
In EMITTINGELEMENTS ", it is proposed that integrated LED chip array on a sapphire substrate, to provide a kind of AC power
The light-emitting device of driving, but the light-emitting flash without solving the problems, such as LED.
United States Patent (USP) US7,489,086B2 " ACLIGHTEITTINGDIODEANDACLEDDR IVE
METHODSANDAPPARATUS " provides a kind of AC LED device, which is a kind of device by multiple LED integration packagings
Part, LED light-emitting flash phenomenon caused by making up alternating current using the visual persistence effect of human eye.The patent is without fundamentally
Light-emitting flash phenomenon caused by solving AC voltage cycle fluctuation.
As it can be seen that in disclosing LED alternating-current actuation techniques, all there is a disadvantage：The driving current of LED can be with exchange
The fluctuation of voltage and the phenomenon that fluctuate, brightness change occur when LED being caused to shine, generate light-emitting flash.Meanwhile LED component
Core is a PN junction diode, and I-V characteristic is approximate exponential function, after the voltage at the both ends LED is more than cut-in voltage,
The electric current for flowing through PN junction is exponentially increased.The AC driving method of the prior art may be directly when alternating voltage surprisingly increases
Damage LED component.
Invention content
The technical problems to be solved by the invention directly drive LED light emission device aiming at prior art alternating current and make
At light-emitting flash the shortcomings that, provide a kind of White LED light-emitting device that alternating current directly drives, cooperation luminescent lifetime is controllable
The LED module that LED is constituted can utilize the luminous twilight sunset of LED further to overcome LED scintillations caused by alternating current, and improve
The efficiency of LED light emission device extends the service life of LED.
The present invention solves the technical problem, the technical solution adopted is that, the white light LEDs that alternating current directly drives, which shine, to be filled
It sets, including ac input end, protection location and rectification unit, which is characterized in that the first output end of the rectification unit passes through n
A LED module and a switch unit are connected to second output terminal, wherein n >=1, and are integer；As n >=2, each two LED
The channel for also having switch unit to constitute between module is connect with second output terminal, each switch unit connects with sampling unit
It connects；
The ac input end provides operating current for connecting alternating current for device；
The protection location is connect with ac input end, is provided protection against for device；
The rectification unit is connect with protection location, and rectification is carried out to the alternating current of protection location output；
The sampling unit exports control signal for being sampled to the output voltage of rectification unit；
The switch unit is connect with sampling unit, is turned off or is connected according to the control signal of sampling unit output；
The LED module is made of LED array, and the LED in the array is the controllable LED of luminescent lifetime.
The LED light emission device circuit of the present invention is made of n grades of LED module cascades, appropriate preset each by sampling unit
What grade LED module corresponded to switch unit switches off and on voltage, scintillation occurs when can be to avoid AC voltage fluctuations.
Especially with luminescent lifetime controllable LED, scintillation is further overcomed.With the increase of LED module quantity, it is equivalent to drop
The low conducting voltage per level-one LED module improves the utilization rate of power supply.Multi-stage LED module is in application, work as alternating voltage wave
When dynamic, each LED module is by the opposite influence smaller for using single module is influenced, and the stability of LED operation is also more preferable, more
Reliably, the ability of anti-AC voltage fluctuations is stronger.LED module is constituted especially with luminescent lifetime controllable LED, can be utilized
The luminous twilight sunset of LED further overcomes LED scintillations caused by alternating current, and improves the efficiency of LED light emission device, extends LED
Service life.
Further, the controllable LED luminescent lifetimes of the luminescent lifetime are 1~100ms.
The extension of LED luminescent lifetimes is conducive to overcome scintillation.
Further, the luminescent lifetime is 10~30ms.
The luminescent lifetime time of the range matches with ac period, can rightly play its twilight sunset advantage, and
And technically be easier to realize, cost is also lower.
Further, the LED array is made of at least one LED being arranged on same printed circuit board, or integrated
At least one LED of encapsulation on the same substrate is constituted, or integrated at least one LED on the same semiconductor substrate is constituted.
LED all in LED module is arranged on same printed circuit board, is most simply most passed through under state-of-the-art
The packaging method of Ji；It or on the same substrate by LED integration packagings all in LED module, i.e., will be all in LED module
LED carries out secondary encapsulation, is integrated on same heat-radiating substrate；Or integrate on the same semiconductor substrate, this is to use partly to lead
Body integrated circuit technology realizes that LED's is integrated in same semiconductor-based on piece.These technologies can also will be in each LED module
LED interlaced arrangements, improve the uniformity of illuminating device luminous brightness, and be conducive to overcome scintillation, LED encapsulation wirings
It is more convenient.
Specifically, the LED is in parallel and/or is connected in series with.
LED connection combinations appropriate in LED module, such as in parallel, series connection or series-parallel connection, more can adapt to alternating current and directly drive
Dynamic use environment easily adjusts electric current, the voltage parameter of each LED module.
Specifically, the protection location includes fuse and/or varistor, the fuse is connected on exchange input
End, the varistor are connected in parallel on ac input end.
Fuse is common current-limiting protection element, and varistor is then common voltage-limiting protection element, their combination
Most basic current limliting and voltage-limiting protection can be completed, and at low cost, it is easy for installation, it is convenient for Two-level ensemble.
Further, the protection location further includes common mode choke and/or gas-discharge tube, the common mode choke string
It is associated in ac input end, the gas-discharge tube is connected in parallel on ac input end.
Increasing common mode choke and gas-discharge tube, common mode choke can be interfered with suppression common mode, and gas-discharge tube can be with
Protect lighting device not by injuries such as thunders and lightnings.
Specifically, full-wave rectification or half-wave rectifying circuit that the rectification unit is made of rectifier diode are constituted.
Using rectifier diode as rectifier cell, small in volume encapsulates convenient for Two-level ensemble.
Specifically, the sampling unit is made of resistor network.
Resistor network is very suitable for acquisition DC parameter, is convenient for configuration switch unit operating point.
Specifically, the switch unit, by transistor, the transistor controls pole is connect with sampling unit.
The characteristics of transistor as switch element there is control to be easy, contactless, the long-life.
More specifically, the switch unit is made of transistor, and the transistor controls pole is connect with sampling unit.
Transistor switching element, technology maturation are quick on the draw, reliable in action.
Specifically, the transistor is field-effect transistor or bipolar transistor, the control extremely field effect transistor
The grid of pipe or the base stage of bipolar transistor.
Transistor switching element, technology maturation are quick on the draw, reliable in action.
The invention has the advantages that directly driving LED module using AC power, circuit is simple, small, weight
Gently, at low cost.By preset shutdown voltage appropriate, especially coordinate luminescent lifetime controllable LED, realizes that AC power directly drives
Dynamic LED light emission device will not flicker when AC voltage fluctuations.When alternating current instantaneous voltage is excessively high, switch unit closes
Disconnected, LED module does not shine, and improves the utilization ratio of power supply, reduces power consumption.Meanwhile also avoiding LED module because of electric current
It is excessive and the case where burn, extend the service life of device.By preset shutdown voltage appropriate, realize that AC power is direct
LED matrix is driven, will not be flickered when AC voltage fluctuations.LED moulds are constituted especially with luminescent lifetime controllable LED
Group can utilize the luminous twilight sunset of LED further to overcome LED scintillations caused by alternating current, and improve the effect of LED light emission device
Rate extends the service life of LED.
Description of the drawings
Fig. 1 is the structure diagram of embodiment 1；
Fig. 2 is the circuit diagram of embodiment 1；
Fig. 3 is the structure diagram of embodiment 2；
Fig. 4 is the structure diagram of embodiment 3；
Fig. 5 is the circuit diagram of embodiment 3.
Specific implementation mode
With reference to the accompanying drawings and embodiments, detailed description of the present invention technical solution.
Luminescent lifetime controllable LED refers to the LED that luminescent lifetime is 1~100ms.It is defined according to luminescence, luminescent lifetime is
Time when luminous intensity drops to excitation needed for the 1/e of maximum intensity.
Luminescent lifetime controllable LED in the present invention contains one or more inorganic and/or luminous organic material combination.Than
Such as：CaS：Eu；CaS:Bi,Tm；ZnS:Tb；CaSrS2:Eu,Dy；SrGa2S4:Dy；Ga2O3:Eu；(Y,Gd)BO3:Eu3+；
Zn2SiO4:Mn2+；YBO3:Tb3+；Y(V,P)O4:Eu3+；SrAl2O4:Eu2+；SrAl2O4:Eu2+,B；SrAl2O4:Eu2+,Dy3+,B；
BaAl2O4:Eu2+；CaAl2O4:Eu2+；Sr3SiO5:Eu2+,Dy3+；BaMgAl10O17:Eu2+,Mn2+；Tb(acac)2(AA)phen；
Y2O2S:Eu3+,Y2SiO5:Tb3+；SrGa2S4:Ce3+；Y3(Al,Ga)5O12:Tb3+；Ca2Zn4Ti15O36:Pr3+；CaTiO3:Pr3+；
Zn2P2O7:Tm3+；Ca2P2O7:Eu2+,Y3+；Sr2P2O7:Eu2+,Y3+；Lu2O3:Tb,Sr2Al6O11:Eu2+；Mg2SnO4:Mn2+；
CaAl2O4:Ce3+,Tb3+；Sr4Al14O25:Tb3+；Ca10(PO4)6(F,Cl):Sb,Mn；Sr2MgSi2O7:Eu2+；Sr2CaSi2O7:
Eu2+；Zn3(PO4)2:Mn2+,Ga3+；CaO:Eu3+；Y2O2S:Mg2+,Ti3+；Y2O2S:Sm3+；SrMg2(PO4)2:Eu2+,Gd3+；
BaMg2(PO4)2:Eu2+,Gd3+；Zn2SiO4:Mn,As；KLaF4:Er；CdSiO3:Dy3+；MgSiO3：Eu2+, Mn2+In one kind or
It is a variety of.
The White LED light-emitting device that the alternating current of the present invention directly drives, including ac input end, protection location, rectification
Unit, sampling unit, switch unit and n LED module, wherein n >=1, and be integer.In light-emitting device of the present invention, rectification list
The first output end (generally direct current output anode) of member is connected to the second output by n LED module and a switch unit
It holds (direct current output negative terminal).There is switch unit to constitute when LED module quantity is more than 2, between each two LED module logical
Road is connect with second output terminal.Each switch unit is connect with sampling unit, is controlled by it.The LED of the present invention, which shines, to be filled
Circuits are made of n grades of LED module cascades, pass through the appropriate preset pass that switch unit is corresponded to per level-one LED module of sampling unit
It is disconnected and connect voltage, there is scintillation when can be to avoid AC voltage fluctuations.The quantity for increasing LED module, is equivalent to
The conducting voltage for reducing every level-one LED module, improves the utilization rate of power supply.Multi-stage LED module is in application, work as alternating voltage
When fluctuation, for each LED module by the opposite influence smaller for using single module is influenced, the stability of LED operation is also more preferable,
More reliable, the ability of anti-AC voltage fluctuations is stronger.The LED module for coordinating luminescent lifetime controllable LED to constitute, can utilize LED
Luminous twilight sunset further overcomes LED scintillations caused by alternating current, and improves the efficiency of LED light emission device, extends making for LED
Use the service life.In the present invention, the luminous twilight sunset of LED is combined with circuit advantage, with obvious effects.
Embodiment 1
Referring to Fig. 1 and Fig. 2, this example light-emitting device includes ac input end 1, protection location 2, rectification unit 3, sampling unit
4, the quantity of switch unit 6 and LED module 5, this example LED module 5 is 1 (i.e. n=1).First output end of this example rectification unit
For direct current output anode 31, which is connected to second output terminal direct current output negative terminal 32 by 5 switch unit 6 of LED module.
Referring to Fig. 1.Ac input end 1 is connect with the ends alternating current L (phase line) and N-terminal (zero curve), and alternating current is introduced protection location 2.It protects
Shield unit 2 provides whole device basic defencive function, is made of varistor VR and fuse F, fuse F is connected on phase
On line, varistor is connected in parallel between phase line and zero curve, sees Fig. 2.For applied to particular surroundings, protection location 2 can also wrap
Include common mode choke and gas-discharge tube.Common mode choke is connected in phase line and zero curve, and gas-discharge tube is generally connected in parallel on
Between phase line and zero curve.The full-wave rectifying circuit D that this example rectification unit 3 is made of rectifier diode is formed, and is carried out to alternating current
Full-wave rectification.This example voltage sampling unit 4, the resistor network being made of sampling resistor R1 and R2 are constituted, by sampling rectified current
The DC voltage of road D outputs, controls switch unit 6.As shown in Figure 2.This example switch unit 6 is by MOSFET (metal oxides half
Conductor field-effect transistor, abbreviation field-effect tube) M1 and M2 and zener diode DZ1, DZ2, resistance R3, R4 and R5 constitute.This
The array that example LED module 5 is made of the LED of more series, parallel or series-parallel connection is constituted, and can be arranged on same printed circuit
The multiple LED of multiple LED or integration packaging on same heat-radiating substrate on plate, or it is integrated in same semiconductor lining
The integrated circuit that multiple LED on bottom are constituted.
When the instantaneous voltage of alternating current reaches the cut-in voltage of LED module 5, driving of the switch unit 6 in sampling unit 4
Lower conducting, LED module 5 start to shine；When the instantaneous voltage of alternating current is more than preset shutdown voltage, switch unit 6 turns off,
LED module 5 stops shining；When alternating current fluctuates, within normal operating voltage range, i.e. opening in LED module 5
When opening between voltage and preset shutdown voltage, the time point of the changed only turn-on and turn-off of switch unit 6, LED
Shining for module 5 will not flicker.
As shown in Fig. 2, rectification circuit D output plus terminals are connected with one end of resistance R1, while being connected to LED module just
End, the output negative terminal of rectification circuit D is as ground.The other end of resistance R1 and one end of resistance R2, zener diode DZ1 it is negative
One end connection at end, resistance R3；The other end of resistance R3 is connect with the grid of field-effect tube M1, and field-effect tube M1's drains, is electric
Hinder the negative terminal connection of one end of R4, one end of resistance R5, zener diode DZ2.The other end of resistance R5 is with field-effect tube M2's
Grid connects, the drain electrode of field-effect tube M2, the negative terminal connection of the other end of resistance R4, LED module.It is the other end of resistance R2, steady
The anode of pressure pipe DZ1, the anode of voltage-stabiliser tube DZ2, the source electrode of field-effect tube M1, field-effect tube M2 source electrode be connected to (direct current
Export negative terminal).
When ac input end 1 is connect with power grid, this lighting device obtains AC power, by protection location 2, and by rectification
Unit 3, is rectified into direct current, is supplied to sampling unit 4, switch unit 6 and LED module 5.In each ac cycle, rectification
Circuit D output voltages are started from scratch rising, when voltage is increased to the cut-in voltage of switch unit, field-effect tube M1 shutdowns, and M2
Conducting, LED module 5 start to shine；With input voltage increase LED module by electric current increase, in voltage less than preset
The voltage stage is turned off, so that field-effect tube M1 conductings, M1 are held off, M2 is held on the undertension that sampling unit 4 exports,
5 continuous illumination of LED module；When voltage surprisingly increases, and is more than preset shutdown voltage, M1 is begun to turn on, M2 shutdowns, LED moulds
Group does not shine, and protects LED module 5 from the impact of high current.
For LED in this example all using the controllable LED of luminescent lifetime, luminescent lifetime is preferably 10~30ms.This hair
Light service life controllable LED, technique realization are easier, and the twilight sunset that shines brings out the best in each other with circuit advantage, can significantly improve anti-
Exchange the effect of flicker.
Embodiment 2
As shown in figure 3, this example light-emitting device LED module 5 has 2, switch unit 6 is also 2,3 anode 31 of rectification unit
By 2 LED modules and the 2nd switch unit 6 (switch unit 2 being labeled as in figure, other switch units mark is similar) with
3 negative terminal 32 of rectification unit connects, and has the 1st switch unit 6 to constitute between the 1st LED module 5 and the 2nd LED module 5
Channel is connect with 3 negative terminal 32 of rectification unit.All switch units of this example 6 are connect with sampling unit 4.
Embodiment 3
As shown in figure 4, this example light-emitting device LED module 5 has 3, switch unit 6 is also 3,3 anode 31 of rectification unit
It is connect with 3 negative terminal 32 of rectification unit by 3 LED modules and the 3rd switch unit 6, (is marked in figure in the 1st LED module 5
For LED module 1, other LED modules mark similar) there is the 1st switch unit 6 to constitute between the 2nd LED module 5
Channel is connect with 3 negative terminal 32 of rectification unit.There is the 2nd switch unit between the 2nd LED module 5 and the 3rd LED module 5
6 channels constituted are connect with 3 negative terminal 32 of rectification unit.All switch units of this example 6 are connect with sampling unit 4.
The circuit diagram of this example device as shown in figure 5, its operation principle and particular circuit configurations are similar to Example 1,
It is not repeating herein.This example sampling unit 4 is by resistance R1, R2, R6, R7, and R11, R12 are constituted, three switch units 6 and 3
LED module group 5 controls three LED modules respectively at three-level circuit, three switch units 6, is respectively set often by sampling unit 4
The level-one switch-off time, and corresponding LED module 5 is protected.With the increase of LED module quantity, it is equivalent to drop
The low conducting voltage of each LED module, improves the utilization rate of power supply.Multi-stage LED module is in application, work as alternating voltage wave
When dynamic, each LED module is by the opposite influence smaller for using single module is influenced, and the stability of LED operation is also more preferable, more
Reliably, the ability of anti-AC voltage fluctuations is stronger.
Through above-mentioned detailed explaination, it can be seen that voltage sampling unit monitoring input voltage of the invention, while also having
To the defencive function of LED module.When big fluctuation occurs in alternating voltage, switch unit can also disconnect in time, protect LED
Module is not damaged because electric current is excessive.
It should be noted that：Although the structure of the present invention is described in detail in above-described embodiment, the present invention is simultaneously unlimited
In the conventional replacing structure that above-described embodiment, every those skilled in the art are carried out according to foregoing description, the present invention is belonged to
Protection domain.
Claims (8)
1. the White LED light-emitting device that alternating current directly drives, which is characterized in that including：
Ac input end provides operating current for connecting alternating current for device；
N LED module, each LED module are made of LED array, and the LED in the LED array is that luminescent lifetime is controllable
LED；In addition to the 1st LED module, the first end of m-th of LED module is connect with the second end of the m-1 LED module；Wherein, 1<
N, 1≤m≤n；
Rectification unit, for will be exported after AC rectification comprising the first output end and second output terminal, described first is defeated
Outlet is connect with the first end of the 1st LED module；
N switch unit includes first and second transistor；Wherein, first and second source transistor of m-th of switch unit
It is extremely connect with the second output terminal, second transistor control pole drains with the first transistor drain electrode connection, second transistor
It is connect with the second end of m-th of LED module；
Sampling unit, the corresponding switch unit of preset each LED module switch off and on voltage, and to rectification unit
Output voltage is sampled, and the grid of each the first transistor is output control signals to, to turn off or connect each switch
Unit avoids the scintillation occurred when AC voltage fluctuations, when the instantaneous voltage of alternating current is more than preset shutdown voltage,
Switch unit turns off, and LED module stops shining；
The array that the LED module is made of the LED of more series, parallel or series-parallel connection is constituted；
M-th of switch unit further include：First zener diode, first end are connect with the second output terminal, the
Two ends are connect with the node of m-th of resistance centering；Second zener diode, first end and the second output terminal
Connection, second end are electrically connected with the drain electrode of the first transistor described in the switch unit；
The sampling unit includes：N resistance pair；M-th of the resistance is to including first resistor and second resistance, wherein the
One resistance first end is connect with the first end of m-th of LED module, second end is connect with a node, second resistance first end
It is connect with the node, second end is connect with the second output terminal；
Every level-one switch-off time is respectively set by sampling unit, and corresponding LED module is protected.
2. the White LED light-emitting device that alternating current according to claim 1 directly drives, which is characterized in that wherein, m
A switch unit further includes：
3rd resistor is connected to the control of the first transistor in the node and the switch unit of m-th of resistance centering
Between pole；
4th resistance is connected between the control pole and drain electrode of second transistor described in the switch unit；
5th resistance is connected between the control pole of second transistor and the drain electrode of the first transistor described in the switch unit.
3. the White LED light-emitting device that the alternating current according to claims 1 or 2 any one directly drives, feature exist
In the controllable LED luminescent lifetimes of the luminescent lifetime are 1~100ms.
4. the White LED light-emitting device that alternating current according to claim 3 directly drives, which is characterized in that described to shine
Luminescent material in service life controllable LED is long after glow luminous material.
5. the White LED light-emitting device that alternating current according to claim 4 directly drives, which is characterized in that more than the length
Brightness luminescent material includes：
CaS:Eu；CaS:Bi,Tm；ZnS:Tb；CaSrS2:Eu,Dy；SrGa2S4:Dy；Ga2O3:Eu；(Y,Gd)BO3:Eu3+；
Zn2SiO4:Mn2+；YBO3:Tb3+；Y(V,P)O4:Eu3+；SrAl2O4:Eu2+；SrAl2O4:Eu2+,B；SrAl2O4:Eu2+,Dy3+,B；
BaAl2O4:Eu2+；CaAl2O4:Eu2+；Sr3SiO5:Eu2+,Dy3+；BaMgAl10O17:Eu2+,Mn2+；Tb(acac)2(AA)phen；
Y2O2S:Eu3+,Y2SiO5:Tb3+；SrGa2S4:Ce3+；Y3(Al,Ga)5O12:Tb3+；Ca2Zn4Ti15O36:Pr3+；CaTiO3:Pr3+；
Zn2P2O7:Tm3+；Ca2P2O7:Eu2+,Y3+；Sr2P2O7:Eu2+,Y3+；Lu2O3:Tb,Sr2Al6O11:Eu2+；Mg2SnO4:Mn2+；
CaAl2O4:Ce3+,Tb3+；Sr4Al14O25:Tb3+；Ca10(PO4)6(F,Cl):Sb,Mn；Sr2MgSi2O7:Eu2+；Sr2CaSi2O7:
Eu2+；Zn3(PO4)2:Mn2+,Ga3+；CaO:Eu3+；Y2O2S:Mg2+,Ti3+；Y2O2S:Sm3+；SrMg2(PO4)2:Eu2+,Gd3+；
BaMg2(PO4)2:Eu2+,Gd3+；Zn2SiO4:Mn,As；KLaF4:Er；CdSiO3:Dy3+；MgSiO3:Eu2+, Mn2+In one kind or
It is a variety of.
6. the White LED light-emitting device that the alternating current according to claim 1-2 or 4-5 any one directly drives, special
Sign is that the transistor is field-effect transistor, the grid of the extremely described field-effect transistor of control.
7. the White LED light-emitting device that alternating current according to claim 6 directly drives, which is characterized in that further include：
Protection location is set between the ac input end and rectification unit；The protection location includes fuse and/or pressure-sensitive
Resistance, the fuse are connected on the ac input end, and the varistor is connected in parallel on the ac input end.
8. the White LED light-emitting device that alternating current according to claim 7 directly drives, which is characterized in that the protection
Unit further includes common mode choke and/or gas-discharge tube, and the common mode choke is connected on the ac input end, the gas
Body discharge tube is connected in parallel on the ac input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498245.6A CN105163424B (en) | 2011-12-31 | 2011-12-31 | The White LED light-emitting device that alternating current directly drives |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459628.4A CN103188850B (en) | 2011-12-31 | 2011-12-31 | The White LED light-emitting device of alternating current Direct driver |
| CN201510498245.6A CN105163424B (en) | 2011-12-31 | 2011-12-31 | The White LED light-emitting device that alternating current directly drives |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110459628.4A Division CN103188850B (en) | 2011-12-31 | 2011-12-31 | The White LED light-emitting device of alternating current Direct driver |
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| Publication Number | Publication Date |
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| CN105163424A CN105163424A (en) | 2015-12-16 |
| CN105163424B true CN105163424B (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110459628.4A Active CN103188850B (en) | 2011-12-31 | 2011-12-31 | The White LED light-emitting device of alternating current Direct driver |
| CN201510498245.6A Active CN105163424B (en) | 2011-12-31 | 2011-12-31 | The White LED light-emitting device that alternating current directly drives |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110459628.4A Active CN103188850B (en) | 2011-12-31 | 2011-12-31 | The White LED light-emitting device of alternating current Direct driver |
Country Status (3)
| Country | Link |
|---|---|
| CN (2) | CN103188850B (en) |
| HK (1) | HK1186900A1 (en) |
| WO (1) | WO2013097694A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540287B (en) * | 2012-10-30 | 2017-11-17 | 四川新力光源股份有限公司 | LED dimming driving circuits |
| CN102892238B (en) * | 2012-10-30 | 2015-02-04 | 四川新力光源股份有限公司 | Dimming drive circuit of AC (Alternating Current) direct drive LED module |
Citations (3)
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| CN101208813A (en) * | 2005-06-28 | 2008-06-25 | 首尔Opto仪器股份有限公司 | Light emitting device for AC power operation |
| CN102186282A (en) * | 2011-03-21 | 2011-09-14 | 中国航天科技集团公司第九研究院第七七一研究所 | Drive circuit capable of improving power factors of alternating current light emitting diode (AC LED) lamp |
| CN102209415A (en) * | 2011-05-30 | 2011-10-05 | 桂林源通网络软件有限公司朝阳路分公司 | Light emitting diode (LED) alternating-current direct power supply circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1167471A (en) * | 1997-08-26 | 1999-03-09 | Tec Corp | Lighting system |
| JP3416082B2 (en) * | 1999-07-01 | 2003-06-16 | 株式会社松村電機製作所 | Lighting equipment |
| US7081722B1 (en) * | 2005-02-04 | 2006-07-25 | Kimlong Huynh | Light emitting diode multiphase driver circuit and method |
| US8174212B2 (en) * | 2008-11-30 | 2012-05-08 | Microsemi Corp.—Analog Mixed Signal Group Ltd. | LED string driver with light intensity responsive to input voltage |
| CN101668373A (en) * | 2009-09-29 | 2010-03-10 | 李云霄 | LED light source driving circuit supplied by AC power |
| US8456095B2 (en) * | 2010-03-19 | 2013-06-04 | Active-Semi, Inc. | Reduced flicker AC LED lamp with separately shortable sections of an LED string |
| CN102202441A (en) * | 2010-03-23 | 2011-09-28 | 陕西西电科大华成电子股份有限公司 | Constant-current controller topology circuit powered directly by alternating current power supply for LED lighting lamp |
| US8476836B2 (en) * | 2010-05-07 | 2013-07-02 | Cree, Inc. | AC driven solid state lighting apparatus with LED string including switched segments |
| CN102261583A (en) * | 2010-05-24 | 2011-11-30 | 台达电子工业股份有限公司 | Light source module |
| CN202008008U (en) * | 2010-11-26 | 2011-10-12 | 四川新力光源有限公司 | AC (alternating current) LED lamp bulb |
-
2011
- 2011-12-31 CN CN201110459628.4A patent/CN103188850B/en active Active
- 2011-12-31 CN CN201510498245.6A patent/CN105163424B/en active Active
-
2012
- 2012-12-25 WO PCT/CN2012/087385 patent/WO2013097694A1/en active Application Filing
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2013
- 2013-12-20 HK HK13114125.4A patent/HK1186900A1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208813A (en) * | 2005-06-28 | 2008-06-25 | 首尔Opto仪器股份有限公司 | Light emitting device for AC power operation |
| CN102186282A (en) * | 2011-03-21 | 2011-09-14 | 中国航天科技集团公司第九研究院第七七一研究所 | Drive circuit capable of improving power factors of alternating current light emitting diode (AC LED) lamp |
| CN102209415A (en) * | 2011-05-30 | 2011-10-05 | 桂林源通网络软件有限公司朝阳路分公司 | Light emitting diode (LED) alternating-current direct power supply circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103188850B (en) | 2015-10-21 |
| HK1186900A1 (en) | 2014-03-21 |
| CN103188850A (en) | 2013-07-03 |
| CN105163424A (en) | 2015-12-16 |
| WO2013097694A1 (en) | 2013-07-04 |
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