CN103152901B - LED lamp - Google Patents

LED lamp Download PDF

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Publication number
CN103152901B
CN103152901B CN201210355692.2A CN201210355692A CN103152901B CN 103152901 B CN103152901 B CN 103152901B CN 201210355692 A CN201210355692 A CN 201210355692A CN 103152901 B CN103152901 B CN 103152901B
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CN
China
Prior art keywords
residual optical
optical illumination
circuit
illumination load
load
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CN201210355692.2A
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Chinese (zh)
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CN103152901A (en
Inventor
藤川隆浩
田中正昭
庄斐志
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Fluorescein lux Co.,Ltd.
Original Assignee
JAGUAR PRECISION INDUSTRY Co Ltd
NEC Lighting Ltd
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Priority to TW100218535 priority Critical
Priority to TW100218535U priority patent/TWM434398U/en
Priority to TW101126138 priority
Priority to TW101126138A priority patent/TWI474760B/en
Application filed by JAGUAR PRECISION INDUSTRY Co Ltd, NEC Lighting Ltd filed Critical JAGUAR PRECISION INDUSTRY Co Ltd
Publication of CN103152901A publication Critical patent/CN103152901A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention provides a kind of LED lamp, comprise the key lighting circuit module and residual optical circuit module that are electrically connected to each other, residual optical circuit module has direct current regulation circuit device, this direct current regulation circuit device obtains direct voltage from key lighting circuit module, and then provides galvanic current pressure for residual optical circuit module.When power supply imports, aforementioned direct voltage stable-pressure device provides charging voltage for the energy-storage travelling wave tube of residual optical circuit module, and when after dump, aforementioned energy-storage travelling wave tube is to residual optical circuit module discharge.Residual optical circuit module comprises the current control device driving residual optical illumination load further.

Description

LED lamp
Technical field
The present invention relates to a kind of LED lamp using LED technology, a kind of LED lamp simultaneously with key lighting load and residual optical illumination load is especially provided, when key lighting load is extinguished, use residual optical illumination load as auxiliary residual radiant.
Background technology
Generally as the light fixture of key lighting after extinguishing, darkly will make human eye immediately cannot take one's bearings, and now can only wait for that eyes conform, in order to head it off, please refer to Fig. 1, be gradually secretly formula lighting framework calcspar after known power-off.After this known power-off, gradually dark formula lighting arranges charging control unit 92, built-in electricity accumulating unit 93, light quantity gradually dark driving control unit 94, switch control unit 96 and light emitting source 95 in lamp body 90.During source power supply 91 non-power-off, switch control unit 96 switches to and uses commercial power mode, and Direct driver light emitting source 95 stabilized illumination, and source power supply 91 charges to built-in electricity accumulating unit 93 through charging control unit 92 simultaneously.When source power supply 91 power-off, switch control unit 96 switches to the power mode using built-in electricity accumulating unit 93, with by light quantity gradually dark driving control unit 94 carry out the regulation and control of the luminosity of light emitting source 95, make the luminosity of light emitting source 95 by bright slowly change into gradually dark.
After this power-off, gradually dark formula lighting adopts same light emitting source 95 as main light source and residual light source, and employing drives main light source and residual light source with one drive circuit, as long as but the brightness of general residual light source can roughly identification orientation be principle to allow human eye in the dark, do not need the brightness as main light source, therefore, adopt light emitting source 95 simultaneously as residual light source, and employing drives main light source and residual light source with one drive circuit, will meet with following point in design:
1. time because of LED employing high working voltage, operating current is less, drive efficiency is higher, so the operating voltage of light emitting source 95 is generally higher than DC15V, general built-in electricity accumulating unit 93 adopts the energy-storage travelling wave tube such as ultracapacitor or battery, monomer whose voltage all only has several volts, light emitting source 95 is adopted to do the words of residual light source, just must use many ultracapacitors or battery of connecting, otherwise need booster circuit, so not only can increase cost, circuit board arrangement space can be taken again, cause the difficulty in design.
2. wish that the color of residual light source is different from the color of main light source sometimes, when only having one group light emitting source 95, also can only adopt same group of color, have the demand of different colours once main light source and residual light source, cannot satisfy the demands, and then lose the competitiveness of product.
3. light emitting source 95 is because of brightness demand, and High Power LED must be adopted could to meet required brightness.In the situation adopting High Power LED as residual radiant, its load current value is about the hundred times of residual smooth operating current, and residual optical circuit can be caused wayward; Adopt independently that low-power LED is as residual smooth LED, its load current value is about tens times of residual smooth operating current, again owing to can independently arrange current feedback resistor device, the simplicity of design of residual optical circuit.
4. when electric power disconnection time, because residual radiant is forced luminous, so cannot tackle the demand not needing residual radiant luminescence.
5. when being made electric power disconnection by the switch on wall, residual radiant is switched to by switch control unit, but when using a teleswitch or use power line communication to control to turn off the light, owing to not making source power supply open circuit, residual radiant can not be luminous, so cannot guarantee that brightness arrives the degree can seen by the side of.
In view of this, how to carry out research and development improvement for above-mentioned known shortcoming, there is provided residual light to assist when king light extinguishes, for the volume of residual light drive circuit, energy-storage travelling wave tube type Mutiple Choice, simplify the complexity of circuit design, and unlatching or the closedown of residual smooth function can be done for the demand of residual smooth function, become the required target of making great efforts research and development of association area.
Summary of the invention
In order to solve the desirable not to the utmost part of above-mentioned prior art, the invention provides a kind of LED lamp, it comprises key lighting circuit module and residual optical circuit module.Wherein, key lighting circuit module comprises key lighting drive unit and key lighting load, and this key lighting drive unit is for driving this key lighting load luminous.Residual optical circuit module comprises: direct current regulation circuit device, and it is electrically connected with this key lighting circuit module and accepts the DC partial voltage that this key lighting circuit module provides; Energy-storage travelling wave tube, it is electrically connected with this direct current regulation circuit device; Current control device, it is electrically connected with this energy-storage travelling wave tube; And residual optical illumination load, it is driven luminous by current control device.
Therefore, main purpose of the present invention is to provide a kind of LED lamp, and its key lighting load and residual optical illumination load be acceptor's lighting circuit module and the luminescence of residual optical circuit module drive respectively, provides residual optical illumination when key lighting load is extinguished.Key lighting load and residual optical illumination load also suitably can be selected in response to the color demand of key lighting and residual optical illumination.
Secondary objective of the present invention is to provide a kind of LED lamp, the operating voltage of its residual optical illumination load is independent of the operating voltage of key lighting load, the operating voltage of residual optical illumination load can be set according to the voltage of energy-storage travelling wave tube, and then improve the selectivity of energy-storage travelling wave tube.
Another object of the present invention is to provide a kind of LED lamp, and it makes residual optical circuit module action by current control device.
Another object of the present invention is to provide a kind of LED lamp, by direct current regulation circuit device for residual optical circuit module provides galvanic current stream.
Another object of the present invention is to provide a kind of LED lamp, the rated power of its residual optical illumination load is less than the rated power of key lighting load, and key lighting circuit module and residual optical circuit module are provided with current feedback resistor device separately, can with the function of the residual light of simple circuit realiration.
Another object of the present invention is the demand in order to not need residual optical illumination load, and making residual optical illumination load by arranging switch is can switch.
Another object of the present invention is to provide a kind of LED lamp, avoids key lighting circuit module and the action simultaneously of residual optical circuit module by broken circuit control device.
Another object of the present invention is, when will close modulating signal input microcomputer when the operation by remote controller etc., microcomputer is closed direct current regulation circuit device and is supplied the power supply of energy-storage travelling wave tube, and cut off open circuit control power supply make residual optical circuit module action, by the electric discharge of energy-storage travelling wave tube, residual optical illumination load can be made luminous.
Another object of the present invention is, when will close modulating signal input microcomputer when the operation by remote controller etc., key lighting load power source turns off by microcomputer, and key lighting load is extinguished, and microcomputer also cuts off open circuit control power supply simultaneously and makes residual optical circuit module action.This shutoff signal can be pwm signal, can be changed the brightness of residual light by the duty ratio changing pwm signal.The operate time of this shutoff signal can set, and now residual optical illumination load plays residual smooth function.Also can be not setting-up time, now residual optical illumination load plays the function of mini light night.When having a power failure, because open circuit controls power supply self action, this is the function of Emergency Light.
Brightness when another object of the present invention is to make user adapt to the normal lighting of slightly dark residual light, make residual optical illumination load with the Intensity LEDs higher than brightness during the normal lighting of residual light, brightness when then making the brightness of residual optical illumination load gradually be changing into the normal bright light of residual light.The brightness higher than brightness during the normal lighting of residual light can be the brightness of key lighting load or be less than the brightness of key lighting load.Another object of the present invention is to provide a kind of LED lamp, its by direct current regulation circuit device for residual optical circuit module provides galvanic current pressure.
Accompanying drawing explanation
Fig. 1 is gradually dark formula lighting framework calcspar after the power-off that proposes of prior art.
Fig. 2 is LED lamp framework calcspar proposed by the invention.
Fig. 3 is the first preferred embodiment LED lamp framework calcspar proposed by the invention.
Fig. 4 is the schematic diagram of the residual optical circuit module shown in display Fig. 3 of the present invention.
The schematic diagram of the current control device in the residual optical circuit module that Fig. 5 A to Fig. 5 C proposes for the first preferred embodiment.
The another kind of the residual optical circuit module that Fig. 6 proposes for display first preferred embodiment implements the schematic diagram of state.
The another kind of the residual optical circuit module that Fig. 7 proposes for display first preferred embodiment implements the schematic diagram of state.
The another kind of the residual optical circuit module that Fig. 8 proposes for display first preferred embodiment implements the schematic diagram of state.
Fig. 9 is the second preferred embodiment LED lamp framework calcspar proposed by the invention.
Figure 10 is the schematic diagram of the residual optical circuit module shown in Fig. 9 of the present invention.
The schematic diagram of the current control device in the residual optical circuit module that Figure 11 A to Figure 11 D proposes for display second preferred embodiment.
The another kind of the residual optical circuit module that Figure 12 proposes for display second preferred embodiment implements the schematic diagram of state.
Figure 13 is the 3rd preferred embodiment LED lamp framework calcspar proposed by the invention.
The another kind of the residual optical circuit module that Figure 14 proposes for display the 3rd preferred embodiment implements the schematic diagram of state.
Figure 15 is the 4th preferred embodiment LED lamp framework calcspar proposed by the invention.
The another kind of the residual optical circuit module that Figure 16 proposes for display the 4th preferred embodiment implements the schematic diagram of state.
Figure 17 is the 5th preferred embodiment LED lamp framework calcspar proposed by the invention.
Figure 18 is the curve chart of the brightness change style showing residual optical illumination load.
Figure 19 is the 6th preferred embodiment LED lamp framework calcspar proposed by the invention.
Figure 20 is the 7th preferred embodiment LED lamp framework calcspar proposed by the invention.
Embodiment
The invention discloses a kind of LED lamp, the principle of wherein utilized light-emitting diode for those skilled in the art can understand, so complete description is no longer done in explanation hereinafter.Simultaneously in advance statement, the structural representation relevant with feature of the present invention expressed by hereinafter contrasted accompanying drawing, not and do not need the complete drafting of foundation actual size.
Please refer to Fig. 2 is LED lamp framework calcspar proposed by the invention.The residual optical circuit module 200 that LED lamp of the present invention comprises key lighting circuit module 100 and is electrically connected with key lighting circuit module 100.
The element forming aforementioned key lighting circuit module 100 comprises key lighting drive unit 110 and key lighting load 120, and key lighting load 120, by being electrically connected with key lighting drive unit 110, is driven by this key lighting drive unit 110.The element forming aforementioned residual optical circuit module 200 comprises direct current regulation circuit device 210, energy-storage travelling wave tube 220, broken circuit control device 230, current control device 240 and residual optical illumination load 250.
Key lighting load 120 is made up of one or more light-emitting diode, and when key lighting load is made up of multiple light-emitting diode, multiple light-emitting diode connects in the mode of serial or parallel connection.Equally, residual optical illumination load 250 is made up of one or more light-emitting diode.When residual optical illumination load is made up of multiple light-emitting diode, multiple light-emitting diode connects in the mode of serial or parallel connection.When not needing residual optical illumination load color different from key lighting load color, also the light-emitting diode of part or all of key lighting load can be used as residual optical illumination load and use, to reduce costs.
The manner of execution of LED lamp is as follows: direct current regulation circuit device 210 obtains DC partial voltage from key lighting circuit module; change again to provide the direct voltage needed for the action of residual optical circuit module 200; this direct voltage charges to energy-storage travelling wave tube 220; the mode of another energy-storage travelling wave tube 220 fixed voltage is by parallel connection direct voltage stabilizing circuit device 210; the time could fixed energy-storage travelling wave tube 220 and discharge each time like this, and protect energy-storage travelling wave tube 220 not damaged because of overvoltage.When the key lighting drive unit 110 power supply P of key lighting circuit module 100 is cut off, key lighting load 120 also will be extinguished, and now energy-storage travelling wave tube 220 discharges to residual optical illumination load 250 through current control device 240.
About key lighting circuit module 100 and residual optical circuit module 200 arrangements of components and be connected, be described in detail as follows:
First please refer to Fig. 3 and Fig. 4, Fig. 3 is the first preferred embodiment LED lamp framework calcspar proposed by the invention, and Fig. 4 is the schematic diagram of residual optical circuit module shown in display Fig. 3.The key lighting drive unit 110 of aforementioned key lighting circuit module 100 is switching power converter (SwitchingPowerSupply) or linear DC power supply supply (LinearDCPowerSupply).This key lighting drive unit 110 is connected with power supply P, this power supply P can be interchange, also can be direct current, as adopted interchange, after key lighting drive unit 110 rectification, namely become direct current, aforementioned direct voltage can provide DC partial voltage through key lighting drive unit 110 again.
Current control device 240 in aforementioned residual optical circuit module 200 adopts constant-current circuit, this constant-current circuit kind is a lot, have with integrated circuit or parts, what have then uses integrated circuit and parts, below illustrate one by one: PNP-bipolar transistor (BipolarJunctionTransistor, BJT), NPN-bipolar transistor (BipolarJunctionTransistor, BJT), P-channel field-effect transistor (PEFT) transistor (FieldEffectTransistor, or N slot field-effect transistor (FieldEffectTransistor FET), FET) as the current control device 240 of constant-current circuit.
Residual optical circuit module shown in Fig. 3 is adopt PNP-bipolar transistor as the residual optical circuit module 200 of constant-current circuit, and the element forming this residual optical circuit module 200 comprises direct current regulation circuit device 210, energy-storage travelling wave tube 220, broken circuit control device 230, current control device 240 and residual optical illumination load 250.
The element forming aforementioned currents control device 240 comprises the first PNP transistor 241 and voltage sets element 242.Wherein, the collector electrode of the first PNP transistor 241 connects the positive pole of residual optical illumination load 250, and the minus earth of residual optical illumination load 250, the base stage of the first PNP transistor 241 is through the first resistor 243 ground connection, the emitter of another first PNP transistor 241 and voltage sets element 242 indirectly establish the second resistor 244, this second resistor 244 can current sensor.
Fig. 5 A to Fig. 5 C is the schematic diagram of the concrete example of display current control device.Aforesaid voltage setting member 242 can be the combination of first diode (as shown in Figure 5A) or the second PNP transistor (as shown in Figure 5 B) or the first Zener diode (as shown in Figure 5 C) or these elements.
The element forming aforementioned broken circuit control device 230 comprises the second diode 231, the 3rd resistor 232 and the first capacitor 233.Wherein, the positive pole of the second diode 231 can detect the contact whether key lighting load 120 light on and off or key lighting drive unit 110 power supply P be switched on and connects with arbitrary, and only does one-way conduction and avoid adverse current.When key lighting load 120 is bright or key lighting drive unit 110 power supply P is switched on, first capacitor 233 will carry out filtering voltage regulation, and cut off the first PNP transistor 241 by the 3rd resistor 232, when key lighting load 120 is gone out, first capacitor 233 is to the 3rd resistor 232, discharge over the ground through the first resistor 243, first PNP transistor 241 will be unlocked, and make residual optical illumination load 250 action.
Aforementioned energy-storage travelling wave tube 220 is capacitor, ultracapacitor or battery, and this energy-storage travelling wave tube 220 is connected to current control device 240.
Aforementioned direct current regulation circuit device 210 is serial voltage regulation circuit, and its element comprises the first NPN transistor 211, the 5th resistor 212 and the 3rd Zener diode 215.Wherein, the collector electrode of the first NPN transistor 211 respectively with the key lighting circuit module 100 of DC partial voltage is provided and is connected with the 5th resistor 212, the negative pole of another 3rd Zener diode 215 is respectively with the base stage of the first NPN transistor 211 and be connected with the 5th resistor 212, and the positive pole of the 3rd Zener diode 215 is ground connection.
The schematic diagram of the another kind of example of the residual optical circuit module that Fig. 6 proposes for display first preferred embodiment.From Fig. 6, in order to correspondence does not need the demand of residual optical illumination load, arranging can the first switch 251 of switch arbitrarily.In the current control device 240 shown in Fig. 6, first switch 251 can be arranged between voltage sets element 242 and the second resistor 244, be arranged between voltage sets element 242 and the first resistor 243, be arranged between voltage sets element 242 and the first PNP transistor 241, or be arranged between energy-storage travelling wave tube 220 and current control device 240.User is interrupted by the first switch 251 or is set up the supply path of energy-storage travelling wave tube to residual optical illumination load.When LED lamp does not need the function of the function of residual optical illumination or Emergency Light, reach close the function of residual optical illumination or the function of Emergency Light by interrupting the supply path of energy-storage travelling wave tube to residual optical illumination load.
In addition, when utilizing remote controller or utilize power line communication etc. to turn off the light, can the 3rd switch (not shown) be set between key lighting drive unit 110 and key lighting load 120 or in key lighting drive unit 110.3rd switch is for setting up or interrupting the power supply supply to key lighting load 120.In addition, second switch 252 inputs the pass modulating signal from microcomputer or control circuit, second switch 252 is turned off by microcomputer or control circuit, disconnect the power supply of key lighting circuit module 100 to residual optical illumination load and energy-storage travelling wave tube to supply, broken circuit control device 230 starts residual optical illumination load because key lighting load 120 is extinguished luminous, and consumes the energy of energy-storage travelling wave tube 220.Second switch 252 is arranged between direct current regulation circuit device 210 and energy-storage travelling wave tube 220 or between key lighting circuit module 100 and direct current regulation circuit device 210.Second switch 252 and the 3rd switch a kind ofly can accept the signal of specifying and circuit be carried out to the element of opening and closing, such as p channel transistor, N-channel transistor, PNP transistor, NPN transistor, optical coupler (PhotoCoupler) and relay etc., as long as can function of wanting be met, not specific to which kind of element.When being when taking out direct-current power supply direct current regulation circuit device 210 in the middle of the LED light string of key lighting load, because providing of this DC power supply when key lighting load 120 is extinguished just stops, now just do not need the design of second switch 252.In addition, when utilizing remote controller or power line communication etc. to turn off the light, other embodiment is as follows, can arrange the 3rd switch (not shown) between key lighting drive unit 110 and key lighting load 120 or in key lighting drive unit 110.3rd switch is for setting up or interrupting the power supply supply to key lighting load 120.Microcomputer receives cut-off signals, and cut off the 3rd switch, key lighting load 120 is extinguished, now be not provided with second switch 252, microcomputer directly controls broken circuit control device 230 and starts residual optical illumination load 250 luminescence, the residual luminous point bright time can be set by the timer of microcomputer, this control signal can be pwm signal, the bright brightness of residual luminous point can be controlled by setting duty ratio (dutyratio), by the presence or absence that microcomputer timing sets, residual optical illumination load 250 can be residual smooth function or small night lamp function, when having a power failure, the residual optical illumination load 250 of broken circuit control device 230 force start is luminous, there is the function of emergency lamp.
The schematic diagram of the another kind of example of the residual optical circuit module that Fig. 7 proposes for display first preferred embodiment.From Fig. 7, the element forming aforementioned direct current regulation circuit device 210 can select three terminal integrated voltage stabilizer 216, and this three terminal integrated voltage stabilizer 216 has input 2161, output 2162 and common port 2163.The DC partial voltage that key lighting circuit module 100 is provided is connected to input 2161, separately makes output 2162 be connected to storage unit 220, and common port 2163 directly ground connection.
Adopt PNP-bipolar transistor how to reach as the residual optical circuit module 200 of constant-current circuit and determine electric current, please refer to following explanation: when the power supply P of the key lighting drive unit 110 of key lighting circuit module 100 is cut off, key lighting load 120 also will be extinguished, now energy-storage travelling wave tube 220 discharges to residual optical illumination load 250, light residual optical illumination load 250, second resistor 244 is connected in series with the emitter of the first PNP transistor 241, voltage sets element 242, the base stage of the first resistor 243 and the first PNP transistor 241 also connects, the voltage sum of the emitter of the first PNP transistor 241 and the voltage of base stage and the second resistor 244 is fixed, therefore the electric current flowing through the second resistor 244 is also fixed, make the collector current of the first PNP transistor 241 fixing equally, once the electric current of residual optical illumination load 250 is fixed, luminous intensity is also fixed thereupon, now brightness is the residual brightness that residual optical illumination load 250 produces, energy-storage travelling wave tube 220 continuous discharge, until the electric current flowing through the second resistor 244 is no longer in lower than setting electric current determine current status, finally to residual optical illumination load 250 is extinguished.In addition, key lighting circuit module 100 avoids action simultaneously with residual optical circuit module 200 by broken circuit control device 230.That is, when the key lighting load 120 of key lighting circuit module 100 is bright, broken circuit control device 230 is failure to actuate making the residual optical illumination load 250 of this residual optical circuit module 200.
The schematic diagram of the another kind of example of the residual optical circuit module that Fig. 8 proposes for display first preferred embodiment.From Fig. 8, in the place identical with Fig. 6, in order to correspondence does not need the demand of residual optical illumination load, and add can the first switch 251 of switch arbitrarily, and in order to make residual optical illumination load luminous when utilizing remote controller etc. to turn off the light, and additional second switch 252.
Fig. 9 is the second preferred embodiment LED lamp framework calcspar proposed by the invention, Figure 10 is the schematic diagram of the residual optical circuit module shown in Fig. 9, wherein residual optical circuit module is the residual optical circuit module 200 of NPN-bipolar transistor cast, second preferred embodiment is identical with the key lighting circuit module 100 of the first preferred embodiment, repeats no longer in detail at this.The element forming this residual optical circuit module 200 comprises direct current regulation circuit device 210, energy-storage travelling wave tube 220, broken circuit control device 230, current control device 240 and residual optical illumination load 250.
The element of composition aforementioned currents control device 240 comprises voltage sets element 242, first resistor 243, second resistor 244 and the first NPN transistor 245.Wherein, the collector electrode of the first NPN transistor 245 connects the negative pole of residual optical illumination load 250, emitter is connected with the second resistor 244 and ground connection, voltage sets element 242 is connected with the base stage of the first NPN transistor 245 and the second resistor 244 respectively, and the base stage of the first NPN transistor 245 connects energy-storage travelling wave tube 220 through the first resistor 243.
Figure 11 A to Figure 11 D is the schematic diagram of the concrete example of display current control device.Aforesaid voltage setting member 242 can be the second NPN transistor (as shown in Figure 11 A) or the first diode (as shown in Figure 11 B) or Zener diode (as shown in Figure 11 C) or the first diode serial connection Zener diode (as shown in Figure 11 D).
The element forming aforementioned broken circuit control device 230 comprises the 3rd resistor 232, the 3rd NPN transistor 234, the 4th resistor 235 and the second Zener diode 236.Wherein, the collector electrode of the 3rd NPN transistor 234 is connected with the base stage of the first NPN transistor 245, the grounded emitter of the 3rd NPN transistor 234, another 4th resistor 235 one end can connect with arbitrary contact detecting key lighting load 120 light on and off, 4th resistor 235 and the 3rd resistor 232 are for setting dividing potential drop, and in order to switch first NPN transistor 245, can accelerate by the second Zener diode 236 speed that residual optical illumination load 250 lights.
Aforementioned energy-storage travelling wave tube 220 is capacitor, ultracapacitor or battery, and this energy-storage travelling wave tube 220 is connected to the positive pole of residual optical illumination load 250.
Aforementioned direct current regulation circuit device 210 is Parallel Voltage Regulator Circuit circuit, and its element comprises the 5th resistor 212 and the 3rd Zener diode 215.Wherein, the 5th resistor 212 one end is connected with providing the key lighting circuit module 100 of DC partial voltage, and the other end is connected to the negative pole of the 3rd Zener diode 215, and connects with energy-storage travelling wave tube 220, and the plus earth of the 3rd Zener diode 215.
Adopt NPN-bipolar transistor how to reach as the residual optical circuit module 200 of constant-current circuit and determine electric current, please refer to following explanation: when the power supply P of the key lighting drive unit 110 of key lighting circuit module 100 is cut off, key lighting load 120 also will be extinguished, now energy-storage travelling wave tube 220 discharges to residual optical illumination load 250, light residual optical illumination load 250, the emitter of the first NPN transistor 245 is connected in series the second resistor 244, and be connected to voltage sets element 242 because of the base stage of the first NPN transistor 245 and the first resistor 243, the voltage sum of the voltage of base stage and emitter and the second resistor 244 is fixed, therefore the electric current flowing through the second resistor 244 is also fixed, make the collector current of the first NPN transistor 245 fixing equally, once the electric current of residual optical illumination load 250 is fixed, luminous intensity is also fixed thereupon.
The schematic diagram of another example of the residual optical circuit module that Figure 12 proposes for display second preferred embodiment.From Figure 12, in order to correspondence does not need the demand of residual optical illumination load, arranging can the first switch 251 of switch arbitrarily.In the current control device 240 shown in Figure 12, first switch 251 can be arranged between voltage sets element 242 and the first resistor 243, be arranged between voltage sets element 242 and the first NPN transistor 245, be arranged between voltage sets element 242 and residual optical illumination load 250, or be arranged between energy-storage travelling wave tube 220 and current control device 240.
In addition, when utilizing remote controller or power line communication etc. to turn off the light, second switch 252 inputs the pass modulating signal from microcomputer or control circuit, second switch 252 is turned off by microcomputer or control circuit, disconnect the power supply of key lighting circuit module 100 to residual optical illumination load and energy-storage travelling wave tube to supply, broken circuit control device 230 starts residual optical illumination load because key lighting load 120 is extinguished luminous, and consumes the energy of energy-storage travelling wave tube 220.Second switch 252 is arranged between direct current regulation circuit device 210 and energy-storage travelling wave tube 220.Second switch 252 a kind ofly can accept the signal of specifying and circuit be carried out to the element of opening and closing, such as p channel transistor, N-channel transistor, PNP transistor, NPN transistor, optical coupler (PHOTOCOUPLER) and relay etc., as long as can function of wanting be met, not specific to which kind of element.When being when taking out direct-current power supply direct current regulation circuit device 210 in the middle of the LED light string of key lighting load, because providing of this DC power supply when key lighting load 120 is extinguished just stops, now just do not need the design of second switch 252.
When utilizing remote controller or power line communication etc. to turn off the light, other embodiment is as follows, can arrange the 3rd switch (not shown) between key lighting drive unit 110 and key lighting load 120 or in key lighting drive unit 110.3rd switch is for setting up or interrupting the power supply supply to key lighting load 120.Microcomputer receives cut-off signals, and cut off the 3rd switch, key lighting load 120 is extinguished, now be not provided with second switch 252, microcomputer directly controls broken circuit control device 230 and starts residual optical illumination load 250 luminescence, the residual luminous point bright time can be set by the timer of microcomputer, this control signal can be pwm signal, the bright brightness of residual luminous point can be controlled by setting duty ratio (dutyratio), by the presence or absence that microcomputer timing sets, residual optical illumination load 250 can be residual smooth function or small night lamp function, when having a power failure, the residual optical illumination load 250 of broken circuit control device 230 force start is luminous, there is the function of emergency lamp.
Above-mentioned NPN-bipolar transistor cast and the residual optical circuit module 200 of PNP-bipolar transistor cast, its broken circuit control device 230, current control device 240 and residual optical illumination load 250 can be replaced, and the current control device 240 that is in Fig. 3 and Fig. 9, residual optical illumination load 250 and broken circuit control device 230 can be replaced each other.
Although not shown, the 3rd NPN transistor 234 of residual optical circuit module 200 also can use mos field effect transistor (MOSFET) to replace.
The operating voltage of residual optical illumination load 250 of the present invention and both operating voltages of key lighting load 120 are independently, so operating voltage can design according to handy energy-storage travelling wave tube 220, the selectivity for energy-storage travelling wave tube 220 also will improve.In addition, when using residual optical illumination load 250 as residual radiant, rated power due to residual optical illumination load 250 is less than the rated power of key lighting load 120, and key lighting load 120 and residual optical illumination load 250 are provided with current feedback resistor device separately, therefore can simplify the design complexities of residual optical circuit.
In addition, when energy-storage travelling wave tube 220 adopts capacitor or ultracapacitor, direct current regulation circuit device 210 can be serial voltage regulation circuit, Parallel Voltage Regulator Circuit circuit, switching regulator or three terminal integrated voltage stabilizer 216.But when energy-storage travelling wave tube 220 adopts battery, direct current regulation circuit device 210 can be battery charger.
Figure 13 is the framework calcspar of the LED lamp of the 3rd preferred embodiment proposed by the invention.Residual optical circuit module shown in Figure 13 is the residual optical circuit module 200 of P-channel field-effect transistor (PEFT) transistor-type, the element forming this residual optical circuit module 200 comprises direct current regulation circuit device 210 equally, energy-storage travelling wave tube 220, broken circuit control device 230, current control device 240 and residual optical illumination load 250, but be with the difference of the residual optical circuit module of PNP-bipolar transistor cast: the current control device 240 of the 3rd preferred embodiment adopts the first p channel transistor 246, but not adopt the first PNP transistor 241 of the first preferred embodiment, the emitter of corresponding first PNP transistor 241 of source electrode of the first p channel transistor 246, the collector electrode of corresponding first PNP transistor 241 of drain electrode of the first p channel transistor 246, the base stage of corresponding first PNP transistor 241 of grid of the first p channel transistor 246, the positive pole of residual optical illumination load 250 is made to be connected to the drain electrode of the first p channel transistor 246.Remaining circuit connects identical with the first preferred embodiment with manner of execution, repeats no longer in detail at this.
The schematic diagram of the another kind of example of the residual optical circuit module that Figure 14 proposes for the better enforcement of display the 3rd.From Figure 14, embodiment is in order to correspondence does not need the demand of residual optical illumination load, and add can the first switch 251 of switch arbitrarily, and in order to make residual optical illumination load luminous when utilizing remote controller etc. to turn off the light, and additional second switch 252.
Figure 15 is the 4th preferred embodiment LED lamp framework calcspar proposed by the invention.Residual optical circuit module shown in Figure 15 is the residual optical circuit module 200 of N slot field-effect transistor type, the element forming this residual optical circuit module 200 comprises direct current regulation circuit device 210 equally, energy-storage travelling wave tube 220, broken circuit control device 230, current control device 240 and residual optical illumination load 250, but be with the difference of the residual optical circuit module of NPN-bipolar transistor cast: the 4th preferred embodiment current control device 240 adopts the first N-channel transistor 247, but not adopt the first NPN transistor 245 of the second preferred embodiment, the emitter of corresponding first NPN transistor 245 of source electrode of the first N-channel transistor 247, the collector electrode of corresponding first NPN transistor 245 of drain electrode of the first N-channel transistor 247, the base stage of corresponding first NPN transistor 245 of grid of the first N-channel transistor 247, the negative pole of residual optical illumination load 250 is connected to the drain electrode of the first N-channel transistor 247.Remaining circuit connects identical with the second preferred embodiment with manner of execution, describes no longer in detail at this.
The schematic diagram of the another kind of example of the residual optical circuit module that Figure 16 proposes for display the 4th preferred embodiment.From Figure 16, in order to correspondence does not need the demand of residual optical illumination load, and add can the first switch 251 of switch arbitrarily, and in order to make residual optical illumination load luminous when utilizing remote controller etc. to turn off the light, and additional second switch 252.
Figure 17 is the schematic diagram that summary shows the 5th preferred embodiment of LED lamp of the present invention.The control of the light beam that the feature of the present embodiment is to carry out making residual optical illumination load, brightness change.Be characterised in that key lighting load starts residual optical illumination load because of factors such as power failure or power-off after turning off the light, by light residual optical illumination load make indoor can not a slice dark, situation arround user's identifiable design, can guarantee in the various embodiments described above of the safety of user, in residual optical circuit module 200, add residual optical illumination load control part 270 further.Residual optical illumination load control part 270 is connected with residual optical illumination load power supply 260 and residual optical illumination load 250.Although not shown, residual optical illumination load power supply 260 can be formed by the direct current regulation circuit device of the various embodiments described above, energy-storage travelling wave tube and broken circuit control device etc., and residual optical illumination load 250 can be integrated with the current control device of the various embodiments described above.Utilize residual optical illumination load control part 270 to control light beam, the brightness of residual optical illumination load 250.Illustrate, key lighting load 120 turn off the light after of short duration during in, make residual optical illumination load 250 with the Intensity LEDs higher than brightness during the normal lighting of residual light, brightness when then making the brightness of residual optical illumination load 250 gradually be changing into the normal bright light of residual light.The brightness change style of residual optical illumination load 250 is shown in Figure 18, and wherein the brightness of LED lamp keeps constant at key lighting load band operate time, and the brightness of LED lamp is successively decreased at residual optical illumination load band operate time.
After the illumination switching to residual optical illumination load 250 from the illumination of key lighting load 120, the brightness that the eyes being accustomed to the brightness of key lighting load 120 will be adapted to slightly dark residual optical illumination load 250 needs some times.In order to do one's utmost to shorten the time needed for adapting to, carry out the brilliance control of residual optical illumination load 250, immediately with bright state lighting after residual optical illumination load 250 lighting, then change brightness until the normal lighting of residual light time brightness, make user's eyes can adapt to the brightness of residual optical illumination load.Residual optical illumination load control part 270 can be made up of timing circuit and current detection circuit etc.Such as, the feedback current of constant-current circuit (i.e. current control device) is detected by current detection circuit, carry out the brilliance control of residual optical illumination load simultaneously, make the brightness maintaining bright state within a certain period of time, afterwards in a linear fashion or other modes reduce the brightness of residual optical illumination load.
About the control of brightness, the style of brightness change is not limited to shown in Figure 18, can according to situation be set to from bright be changing into dim or from bright be changing into dim be changing into again bright etc.
In addition, time in order to notify that the load of user's residual optical illumination is about to stop luminous or the residual optical illumination load luminous elapsed time, also blinking action etc. can be carried out.
Except such as above-mentioned except according to predetermined brightness change, style controls, the electric current that the embodiment shown in Figure 17 also can be used for controlling arbitrary value flows through residual optical illumination load.Illustrate, select arbitrary electric current or PWM duty ratio by user, the brightness of residual optical illumination load can be selected.Certainly, the electric current flow through is large, and the brightness of residual optical illumination load can improve, and the fluorescent lifetime of residual optical illumination load will shorten.On the contrary, reduce the electric current flow through, then the brightness of residual optical illumination load can reduce, and can extend residual optical illumination load fluorescent lifetime.That is, formed user can select the fluorescent lifetime of the brightness of residual optical illumination load and residual optical illumination load be feature circuit form.
Figure 19 is the schematic diagram that summary shows the 6th preferred embodiment of LED lamp of the present invention.Be with difference embodiment illustrated in fig. 17, the residual optical illumination load of the embodiment shown in Figure 19 comprises the first sub residual optical illumination load 250A and the second sub residual optical illumination load 250B, residual optical illumination load is be connected with the first sub residual optical illumination load 250A and the second sub residual optical illumination load 250B, alternately to make the first sub residual optical illumination load 250A and the second sub residual optical illumination load 250B action by load commutation circuit 280 with power supply 260.The residual optical illumination load control part 270 be made up of timing circuit and current detection circuit etc. is connected with residual optical illumination load power supply 260, load commutation circuit 280 and the first sub residual optical illumination load 250A, the second sub residual optical illumination load 250B.First sub residual optical illumination load 250A and the second sub residual optical illumination load 250B can make the lighting load sending different colors from one another light, such as the first sub residual optical illumination load 250A is made the lighting load sending green light, the second sub residual optical illumination load 250B is made and sends blue lighting load.But the present invention is not limited thereto, the first sub residual optical illumination load 250A and the second sub residual optical illumination load 250B also can make the lighting load sending same color light.
The feature of the present embodiment is the control of the color change carrying out making residual optical illumination load.Due to the relation of visual sense degree, key lighting load turn off the light switch to residual optical illumination load after to send wavelength be immediately green light near 500nm.In addition, in order to notify that the situations such as user's residual optical illumination load fluorescent lifetime closes to an end make glow color change, or the color of user's hobby can be set.Such as utilize current detection circuit to detect the feedback current of constant-current circuit, after carrying out sending green light certain hour, make residual optical illumination load glow color be changing into the control of blue light etc. simultaneously.
Although in the example that the embodiment shown in Figure 19 is dual output, also can be RGB three export or three export more than.Use the LED with the element of RGB, the control carrying out colour temperature is slowly changed is also passable.
About the change style of glow color, the colors such as green-blue-green-indigo plant also can be made sequentially to change in the short time.
Moreover, also can the person of being set using can set arbitrarily colour temperature circuit form.
Figure 20 is the schematic diagram that summary shows the 7th preferred embodiment of LED lamp of the present invention.Be with difference embodiment illustrated in fig. 17, in the embodiment shown in Figure 20, residual optical illumination load control part 270 is made up of current detection circuit, timing circuit and pwm control circuit 271 etc.
When embodiment illustrated in fig. 17, by making residual optical illumination load ON/OFF, and residual optical illumination load is glimmered.When embodiment illustrated in fig. 19, by utilizing commutation circuit to make the first sub residual optical illumination load 250A and the second sub residual optical illumination load 250B alternating movement, and residual optical illumination load is glimmered.
The feature of the embodiment shown in Figure 20 is, by utilizing pwm control circuit 271 to make residual optical illumination load with arbitrary frequency or arbitrary duty ratio flicker, and extends total fluorescent lifetime of residual optical illumination load.The frequency of about the 100Hz (can be the frequency of more than 100Hz or below 100Hz) perceiving scintillation is difficult to human eye, residual optical illumination load is glimmered (such as using PWM lighting mode), can compared with more can promote the residual brightness of optical illumination load and the performance of fluorescent lifetime in direct current lighting mode in the past.
Will be appreciated that, the present invention is not limited to the various embodiments described above, under inspiration of the present invention, there is the people of general knowledge in the technical field of the invention, can make and use the circuit of multiple embodiment and the circuit structure formed or the different circuit of combination function and the circuit structure formed.A part of feature of one or more embodiment or whole feature can together with the Partial Feature of other embodiments or whole Feature Combination.
The foregoing is only preferred embodiment of the present invention, and be not used to limit claims of the present invention; Simultaneously above description should understand and enforcement to those skilled in the art, and therefore other equivalences completed under not departing from disclosed spirit change or modify, and all should comprise in the scope of claims of the application.
Symbol description
P power supply
100 key lighting circuit modules
110 key lighting drive units
120 key lighting loads
200 residual optical circuit modules
210 direct current regulation circuit devices
211 first NPN transistor
212 the 5th resistors
2153 the 3rd Zener diodes
216 three terminal integrated voltage stabilizers
2161 inputs
2162 outputs
2163 common ports
220 energy-storage travelling wave tubes
230 broken circuit control devices
231 second diodes
232 the 3rd resistors
233 first capacitors
234 the 3rd NPN transistor
235 the 4th resistors
236 second Zener diodes
240 current control devices
241 first PNP transistor
242 voltage sets elements
243 first resistors
244 second resistors
245 first NPN transistor
246 first p channel transistors
247 first N-channel transistor
250 residual optical illumination loads
The sub residual optical illumination load of 250A first
The sub residual optical illumination load of 250B second
260 residual optical illumination load power supplys
270 residual optical illumination load control parts
271PWM control circuit
280 load commutation circuits

Claims (27)

1. a LED lamp, comprises:
Key lighting circuit module (100), it comprises key lighting drive unit (110) and key lighting load (120), and this key lighting drive unit (110) makes it luminous for driving this key lighting load (120); And
Residual optical circuit module (200), it comprises: direct current regulation circuit device (210), and it is electrically connected with this key lighting circuit module (100) and accepts the DC partial voltage that this key lighting circuit module (100) provides, energy-storage travelling wave tube (220), it is electrically connected with this direct current regulation circuit device (210), current control device (240), it is electrically connected with this energy-storage travelling wave tube (220), and residual optical illumination load (250), it is luminous by this current control device (240) driving, wherein this residual optical circuit module (200) comprises broken circuit control device (230) further, this residual optical circuit module (200) when key lighting power turn-on is turned off, and this residual optical circuit module (200) starts action when key lighting power-off, drive residual optical illumination load (250) luminous, wherein this broken circuit control device (230) is from by the second diode (231), select in the group that 3rd resistor (232) and the first capacitor (233) are formed.
2. a LED lamp, comprises:
Key lighting circuit module (100), it comprises key lighting drive unit (110) and key lighting load (120), and this key lighting drive unit (110) makes it luminous for driving this key lighting load (120); And
Residual optical circuit module (200), it comprises: direct current regulation circuit device (210), and it is electrically connected with this key lighting circuit module (100) and accepts the DC partial voltage that this key lighting circuit module (100) provides, energy-storage travelling wave tube (220), it is electrically connected with this direct current regulation circuit device (210), current control device (240), it is electrically connected with this energy-storage travelling wave tube (220), and residual optical illumination load (250), it is luminous by this current control device (240) driving, wherein this residual optical circuit module (200) comprises broken circuit control device (230) further, this residual optical circuit module (200) when key lighting power turn-on is turned off, and this residual optical circuit module (200) starts action when key lighting power-off, drive residual optical illumination load (250) luminous, wherein this broken circuit control device (230) is from by the 3rd resistor (232), 3rd NPN transistor (234), select in the group that 4th resistor (235) and the second Zener diode (236) are formed.
3. LED lamp according to claim 1 and 2, wherein this current control device (240) comprises the first NPN transistor (245), the negative pole of this residual optical illumination load (250) is connected with the collector electrode of this first NPN transistor (245), and this current control device (240) comprises the voltage sets element (242) be connected with this first NPN transistor (245) further.
4. LED lamp according to claim 1 and 2, wherein this current control device (240) comprises the first N-channel transistor (247), the negative pole of this residual optical illumination load (250) is connected with the drain electrode of this first N-channel transistor (247), and this current control device (240) comprises the voltage sets element (242) be connected with this first N-channel transistor (247) further.
5. LED lamp according to claim 3, wherein this voltage sets element (242) selects from the group be made up of the second NPN transistor, the first diode and the first Zener diode.
6. LED lamp according to claim 4, wherein this voltage sets element (242) selects from the group be made up of the second NPN transistor, the first diode and the first Zener diode.
7. LED lamp according to claim 1 and 2, wherein this current control device (240) comprises the first PNP transistor (241), the positive pole of this residual optical illumination load (250) is connected with the collector electrode of this first PNP transistor (241), and this current control device (240) comprises the voltage sets element (242) be connected with this first PNP transistor (241) further.
8. LED lamp according to claim 1 and 2, wherein this current control device (240) comprises the first p channel transistor (246), the positive pole of this residual optical illumination load (250) is connected with the drain electrode of this first p channel transistor (246), and this current control device (240) comprises the voltage sets element be connected with this first p channel transistor (246) further.
9. LED lamp according to claim 8, wherein this voltage sets element (242) selects from the group be made up of the second NPN transistor, the first diode and the first Zener diode.
10. LED lamp according to claim 7, wherein this voltage sets element (242) selects from the group be made up of the second NPN transistor, the first diode and the first Zener diode.
11. LED lamps according to claim 1 and 2, wherein this direct current regulation circuit device (210) is serial voltage regulation circuit, this serial voltage regulation circuit comprises the first NPN transistor (211), the 5th resistor (212) and the 3rd Zener diode (215), and the negative pole of the 3rd Zener diode (215) is connected with the base stage of this first NPN transistor (211).
12. LED lamps according to claim 1 and 2, wherein this direct current regulation circuit device (210) is Parallel Voltage Regulator Circuit circuit, this direct current regulation circuit device (210) comprises the 5th resistor (212) and the 3rd Zener diode (215), and the negative pole of the 3rd Zener diode (215) is connected with the 5th resistor (212).
13. LED lamps according to claim 1 and 2, wherein this direct current regulation circuit device (210) is three terminal integrated voltage stabilizer (216).
14. LED lamps according to claim 1 and 2, wherein this direct current regulation circuit device (210) is switching regulator.
15. LED lamps according to claim 1 and 2, wherein this direct current regulation circuit device (210) is battery charger.
16. LED lamps according to claim 1 and 2, wherein the rated power of this residual optical illumination load (250) is lower than the rated power of this key lighting load (120).
17. LED lamps according to claim 1 and 2, wherein the operating voltage of this residual optical illumination load (250) is lower than the operating voltage of this key lighting load (120).
18. LED lamps according to claim 1 and 2, wherein this key lighting load is made up of multiple light-emitting diode, and part or all light-emitting diode of this key lighting load uses as residual optical illumination load.
19. LED lamps according to claim 1 and 2, wherein this residual optical circuit module (200) comprises the first switch (251) further, this first switch (251) is arranged in this current control device (240), for interrupting or setting up from the supply path of this energy-storage travelling wave tube (220) to this residual optical illumination load (250).
20. LED lamps according to claim 1 and 2, wherein this residual optical circuit module (200) comprises second switch (252) further, this second switch (252) is arranged between this direct current regulation circuit device (210) and this energy-storage travelling wave tube (220), for interrupting or setting up from this direct current regulation circuit device (210) the supply path of this energy-storage travelling wave tube (220) with this residual optical illumination load (250).
21. LED lamps according to claim 20, wherein this second switch (252) is triggered and action by remote controller or microcomputer.
22. LED lamps according to claim 20, wherein this key lighting circuit module (100) comprises the 3rd switch further, 3rd switch-linear hybrid is in this key lighting drive unit (110), or be arranged between this key lighting drive unit (110) and this key lighting load (120), for setting up or interrupting the power supply supply to this key lighting load (120), the 3rd switch is triggered and action by remote controller or microcomputer.
23. LED lamps according to claim 1 and 2, wherein this residual optical circuit module (200) comprises residual optical illumination load control part (270) further, for controlling to flow through at least one in the fluorescent lifetime of the electric current of this residual optical illumination load, the luminosity of this residual optical illumination load and this residual optical illumination load.
24. LED lamps according to claim 23, wherein this residual optical illumination load control part (270) is made up of current detection circuit and timing circuit.
25. LED lamps according to claim 23, wherein by this direct current regulation circuit device, this energy-storage travelling wave tube and this broken circuit control device form residual optical illumination load power supply (260), this residual optical illumination load (250) comprises the residual optical illumination load of multiple son (250A, 250B), this residual optical circuit module (200) comprises load commutation circuit (280), this residual optical illumination load control part (270) and this residual optical illumination load power supply (260), this load commutation circuit (280) and this little residual optical illumination load (250A, 250B) connect, this residual optical illumination load power supply (260) by this load commutation circuit (280) with this little residual optical illumination load (250A, 250B) connect, alternately to make this little residual optical illumination load (250A, 250B) action.
26. LED lamps according to claim 25, wherein the glow color of this little residual optical illumination load (250A, 250B) is different.
27. LED lamps according to claim 23, wherein this residual optical illumination load control part (270) comprises pwm control circuit (271), glimmers with the duty ratio of the frequency of setting or setting for making this residual optical illumination load in PWM bright light mode.
CN201210355692.2A 2011-10-03 2012-09-21 LED lamp Active CN103152901B (en)

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TW100218535U TWM434398U (en) 2011-10-03 2011-10-03 LED lighting device
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Effective date of registration: 20200731

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Patentee after: Fluorescein lux Co.,Ltd.

Address before: No.4, Lane 29, Lane 269, Zhenqian street, 238 Shulin District, Xinbei City, Taiwan, China

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Patentee before: Jaguar Precision Industry Co.,Ltd.