CN103841683B - A kind of lighting circuit and portable lamp - Google Patents
A kind of lighting circuit and portable lamp Download PDFInfo
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- CN103841683B CN103841683B CN201210489177.3A CN201210489177A CN103841683B CN 103841683 B CN103841683 B CN 103841683B CN 201210489177 A CN201210489177 A CN 201210489177A CN 103841683 B CN103841683 B CN 103841683B
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Abstract
The present invention is applicable to field of light fittings, particularly relates to a kind of lighting circuit and portable lamp.In embodiments of the present invention, by operation hilted broadsword three throw switch S1, portable lamp can be allowed to switch in two kinds of light sources, to meet the demand to illumination under varying environment, under portable lamp also can be operated in charge mode, facilitate the charge requirement under case of emergency.
Description
Technical field
The invention belongs to field of light fittings, particularly relate to a kind of lighting circuit and portable lamp.
Background technology
Portable lamp, as a kind of illuminating lamp be convenient for carrying, is widely used in the middle of the occasions such as daily life, exploration, work, provides a lot of convenience to the life of people.
But existing portable lamp mostly only has a kind of light source, like this under different occasion, different light sources can not be selected targetedly, cause illuminating effect undesirable.
Summary of the invention
The object of the present invention is to provide a kind of lighting circuit, be intended to solve existing portable lamp and mostly only have a kind of light source, cause the problem that illuminating effect is undesirable.
The present invention is achieved in that a kind of lighting circuit, and described lighting circuit comprises:
Fuse F1, piezo-resistance RV, resistance R1, electric capacity C1, rectifier bridge BD1, filter capacitor C2, voltage-stabiliser tube VD1, diode D2, the first light source, secondary light source, SP3T switch S 1, rechargeable battery BAT, resistance R2, potentiometer RP1, electric capacity C3, complementary type multi-harmonic self-excited oscillation circuit, transformer T1 and charging display lamp LED;
The live wire of the first termination three-phase alternating current of described fuse F1, second end of described fuse F1 connects the first input end of rectifier bridge BD1 by resistance R1 in parallel and electric capacity C1, the zero line of the second input termination three-phase alternating current of described rectifier bridge BD1, between the second end that described piezo-resistance RV is connected to described fuse F1 and second input of rectifier bridge BD1, the diode D2 of the first output by series connection of described rectifier bridge BD1 and first moved end 1 of charging display lamp LED order cutter three throw switch S1, between the first output that described filter capacitor C2 and voltage-stabiliser tube VD1 is connected in parallel on described rectifier bridge BD1 and the second output, described first light source is connected between the 3rd moved end 3 of SP3T switch S 1 and ground, second moved end 2 of described SP3T switch S 1 connects the input of described complementary type multi-harmonic self-excited oscillation circuit and the first end of transformer T1 armature winding simultaneously, the not moved end 4 of described SP3T switch S 1 is by rechargeable battery BAT ground connection, the electric capacity C3 of the second end by connecting of described transformer T1 armature winding, resistance R2 and potentiometer RP1 ground connection, the control termination capacitor C3 of described complementary type multi-harmonic self-excited oscillation circuit and the public connecting end of resistance R2, second end of the output termination transformer T1 armature winding of described complementary type multi-harmonic self-excited oscillation circuit, the earth terminal ground connection of described complementary type multi-harmonic self-excited oscillation circuit, the two ends of described transformer T1 secondary winding connect positive pole and the negative pole of secondary light source respectively.
Another object of the present invention is to provide a kind of portable lamp, described portable lamp comprises lighting circuit, and described lighting circuit comprises:
Fuse F1, piezo-resistance RV, resistance R1, electric capacity C1, rectifier bridge BD1, filter capacitor C2, voltage-stabiliser tube VD1, diode D2, the first light source, secondary light source, SP3T switch S 1, rechargeable battery BAT, resistance R2, potentiometer RP1, electric capacity C3, complementary type multi-harmonic self-excited oscillation circuit, transformer T1 and charging display lamp LED;
The live wire of the first termination three-phase alternating current of described fuse F1, second end of described fuse F1 connects the first input end of rectifier bridge BD1 by resistance R1 in parallel and electric capacity C1, the zero line of the second input termination three-phase alternating current of described rectifier bridge BD1, between the second end that described piezo-resistance RV is connected to described fuse F1 and second input of rectifier bridge BD1, the diode D2 of the first output by series connection of described rectifier bridge BD1 and first moved end 1 of charging display lamp LED order cutter three throw switch S1, between the first output that described filter capacitor C2 and voltage-stabiliser tube VD1 is connected in parallel on described rectifier bridge BD1 and the second output, described first light source is connected between the 3rd moved end 3 of SP3T switch S 1 and ground, second moved end 2 of described SP3T switch S 1 connects the input of described complementary type multi-harmonic self-excited oscillation circuit and the first end of transformer T1 armature winding simultaneously, the not moved end 4 of described SP3T switch S 1 is by rechargeable battery BAT ground connection, the electric capacity C3 of the second end by connecting of described transformer T1 armature winding, resistance R2 and potentiometer RP1 ground connection, the control termination capacitor C3 of described complementary type multi-harmonic self-excited oscillation circuit and the public connecting end of resistance R2, second end of the output termination transformer T1 armature winding of described complementary type multi-harmonic self-excited oscillation circuit, the earth terminal ground connection of described complementary type multi-harmonic self-excited oscillation circuit, the two ends of described transformer T1 secondary winding connect positive pole and the negative pole of secondary light source respectively.
In the present invention, by operation hilted broadsword three throw switch S1, portable lamp can be allowed to switch in two kinds of light sources, to meet the demand to illumination under varying environment, under portable lamp also can be operated in charge mode, facilitate the charge requirement under case of emergency.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the lighting circuit that the embodiment of the present invention provides;
Fig. 2 is the structure chart of the lighting circuit that first embodiment of the invention provides;
Fig. 3 is the structure chart of the lighting circuit that second embodiment of the invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows the modular structure of the lighting circuit that the embodiment of the present invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows.
A kind of lighting circuit, described lighting circuit comprises:
Fuse F1, piezo-resistance RV, resistance R1, electric capacity C1, rectifier bridge BD1, filter capacitor C2, voltage-stabiliser tube VD1, diode D2, the first light source 201, secondary light source 202, SP3T switch S 1, rechargeable battery BAT, resistance R2, potentiometer RP1, electric capacity C3, complementary type multi-harmonic self-excited oscillation circuit 100, transformer T1 and charging display lamp LED;
The live wire L of the first termination three-phase alternating current of described fuse F1, second end of described fuse F1 connects the first input end of rectifier bridge BD1 by resistance R1 in parallel and electric capacity C1, the zero line N of the second input termination three-phase alternating current of described rectifier bridge BD1, between the second end that described piezo-resistance RV is connected to described fuse F1 and second input of rectifier bridge BD1, the diode D2 of the first output by series connection of described rectifier bridge BD1 and first moved end 1 of charging display lamp LED order cutter three throw switch S1, between the first output that described filter capacitor C2 and voltage-stabiliser tube VD1 is connected in parallel on described rectifier bridge BD1 and the second output, described first light source 201 is connected between the 3rd moved end 3 of SP3T switch S 1 and ground, second moved end 2 of described SP3T switch S 1 connects the input of described complementary type multi-harmonic self-excited oscillation circuit 100 and the first end of transformer T1 armature winding simultaneously, the not moved end 4 of described SP3T switch S 1 is by rechargeable battery BAT ground connection, the electric capacity C3 of the second end by connecting of described transformer T1 armature winding, resistance R2 and potentiometer RP1 ground connection, the control termination capacitor C3 of described complementary type multi-harmonic self-excited oscillation circuit 100 and the public connecting end of resistance R2, second end of the output termination transformer T1 armature winding of described complementary type multi-harmonic self-excited oscillation circuit 100, the earth terminal ground connection of described complementary type multi-harmonic self-excited oscillation circuit 100, the two ends of described transformer T1 secondary winding connect positive pole and the negative pole of secondary light source 202 respectively.
As one embodiment of the invention, described first light source 201 is high brightness lamp, fluorescent lamp or LED.
As one embodiment of the invention, described secondary light source 202 is high brightness lamp, fluorescent lamp or LED.
In embodiments of the present invention, the first light source 201 and secondary light source 202 are respectively high brightness lamp L1 and fluorescent lamp L2.
Fig. 2 shows the circuit structure of the lighting circuit that first embodiment of the invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows.
As one embodiment of the invention, described complementary type multi-harmonic self-excited oscillation circuit 100 comprises PNP type triode Q1 and NPN type triode Q2, the input of the very described complementary type multi-harmonic self-excited oscillation circuit 100 of transmitting of described PNP type triode Q1, the base stage of described PNP type triode Q1 is the control end of described complementary type multi-harmonic self-excited oscillation circuit 100, the collector electrode of described PNP type triode Q1 connects the base stage of NPN type triode Q2, the output of the very described complementary type multi-harmonic self-excited oscillation circuit 100 of current collection of described NPN type triode Q2, the earth terminal of the very described complementary type multi-harmonic self-excited oscillation circuit 100 of transmitting of described NPN type triode Q2.
Fig. 3 shows the circuit structure of the lighting circuit that second embodiment of the invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows.
As one embodiment of the invention, described complementary type multi-harmonic self-excited oscillation circuit 100 comprises P type metal-oxide-semiconductor Q3 and N-type metal-oxide-semiconductor Q4, the source electrode of described P type metal-oxide-semiconductor Q3 is the input of described complementary type multi-harmonic self-excited oscillation circuit 100, the grid of described P type metal-oxide-semiconductor Q3 is the control end of described complementary type multi-harmonic self-excited oscillation circuit 100, the drain electrode of described P type metal-oxide-semiconductor Q3 connects the grid of N-type metal-oxide-semiconductor Q4, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the output of described complementary type multi-harmonic self-excited oscillation circuit 100, the source electrode of described N-type metal-oxide-semiconductor Q4 is the earth terminal of described complementary type multi-harmonic self-excited oscillation circuit 100.
The embodiment of the present invention also provides a kind of portable lamp, and described portable lamp comprises lighting circuit, and described lighting circuit comprises:
Fuse F1, piezo-resistance RV, resistance R1, electric capacity C1, rectifier bridge BD1, filter capacitor C2, voltage-stabiliser tube VD1, diode D2, the first light source 201, secondary light source 202, SP3T switch S 1, rechargeable battery BAT, resistance R2, potentiometer RP1, electric capacity C3, complementary type multi-harmonic self-excited oscillation circuit 100, transformer T1 and charging display lamp LED;
The live wire L of the first termination three-phase alternating current of described fuse F1, second end of described fuse F1 connects the first input end of rectifier bridge BD1 by resistance R1 in parallel and electric capacity C1, the zero line N of the second input termination three-phase alternating current of described rectifier bridge BD1, between the second end that described piezo-resistance RV is connected to described fuse F1 and second input of rectifier bridge BD1, the diode D2 of the first output by series connection of described rectifier bridge BD1 and first moved end 1 of charging display lamp LED order cutter three throw switch S1, between the first output that described filter capacitor C2 and voltage-stabiliser tube VD1 is connected in parallel on described rectifier bridge BD1 and the second output, described first light source 201 is connected between the 3rd moved end 3 of SP3T switch S 1 and ground, second moved end 2 of described SP3T switch S 1 connects the input of described complementary type multi-harmonic self-excited oscillation circuit 100 and the first end of transformer T1 armature winding simultaneously, the not moved end 4 of described SP3T switch S 1 is by rechargeable battery BAT ground connection, the electric capacity C3 of the second end by connecting of described transformer T1 armature winding, resistance R2 and potentiometer RP1 ground connection, the control termination capacitor C3 of described complementary type multi-harmonic self-excited oscillation circuit 100 and the public connecting end of resistance R2, second end of the output termination transformer T1 armature winding of described complementary type multi-harmonic self-excited oscillation circuit 100, the earth terminal ground connection of described complementary type multi-harmonic self-excited oscillation circuit 100, the two ends of described transformer T1 secondary winding connect positive pole and the negative pole of secondary light source 202 respectively.
As one embodiment of the invention, described first light source 201 is high brightness lamp, fluorescent lamp or LED.
As one embodiment of the invention, described secondary light source 202 is high brightness lamp, fluorescent lamp or LED.
In embodiments of the present invention, the first light source 201 and secondary light source 202 are respectively high brightness lamp L1 and fluorescent lamp L2.
As one embodiment of the invention, described complementary type multi-harmonic self-excited oscillation circuit 100 comprises PNP type triode Q1 and NPN type triode Q2, the input of the very described complementary type multi-harmonic self-excited oscillation circuit 100 of transmitting of described PNP type triode Q1, the base stage of described PNP type triode Q1 is the control end of described complementary type multi-harmonic self-excited oscillation circuit 100, the collector electrode of described PNP type triode Q1 connects the base stage of NPN type triode Q2, the output of the very described complementary type multi-harmonic self-excited oscillation circuit 100 of current collection of described NPN type triode Q2, the earth terminal of the very described complementary type multi-harmonic self-excited oscillation circuit 100 of transmitting of described NPN type triode Q2.
As one embodiment of the invention, described complementary type multi-harmonic self-excited oscillation circuit 100 comprises P type metal-oxide-semiconductor Q3 and N-type metal-oxide-semiconductor Q4, the source electrode of described P type metal-oxide-semiconductor Q3 is the input of described complementary type multi-harmonic self-excited oscillation circuit 100, the grid of described P type metal-oxide-semiconductor Q3 is the control end of described complementary type multi-harmonic self-excited oscillation circuit 100, the drain electrode of described P type metal-oxide-semiconductor Q3 connects the grid of N-type metal-oxide-semiconductor Q4, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the output of described complementary type multi-harmonic self-excited oscillation circuit 100, the source electrode of described N-type metal-oxide-semiconductor Q4 is the earth terminal of described complementary type multi-harmonic self-excited oscillation circuit 100.
Comprise PNP type triode Q1 and NPN type triode Q2 for complementary type multi-harmonic self-excited oscillation circuit 100 below, the operation principle of lighting circuit be described:
First moved end 2, moved end 1, second of SP3T switch S 1, the 3rd moved end 3 and not moved end 4 corresponding " charging ", " fluorescence ", " high brightness " and " battery " respectively.
During charging, SP3T switch S 1 is placed in " charging ", and civil power 220VAC is by the reduction voltage circuit of R1, C1 composition, through rectifier bridge BD1 full-wave rectification, electric capacity C2 filtering, voltage-stabiliser tube VD1 voltage stabilizing, obtains stable DC output voltage, by diode D2, rechargeable battery BAT is charged, LED is charging display lamp, and cell voltage constantly raises along with the increase in charging interval, until automatically stop charging when diode D2 ends, charging display lamp LED extinguishes, and charging terminates.
F1 is the fuse of a 2.5A/250VAC, and piezo-resistance RV plays the effect absorbing civil power surge voltage.
During fluorescent lighting, SP3T switch S 1 is placed in " fluorescence ", rechargeable battery BAT provides DC point to PNP type triode Q1 and NPN type triode Q2, PNP type triode Q1 and NPN type triode Q2 forms complementary type multi-harmonic self-excited oscillation circuit 100, voltage is by the armature winding of the collector electrode inflow transformer T1 of NPN type triode Q2, after boosting, be added to fluorescent lamp L2 two ends by secondary winding, make lamp luminescence.Because the luminous efficiency of fluorescent tube is relevant with the power of oscillating current and frequency, therefore regulator potentiometer RP1 can control the luminous intensity of fluorescent lamp L2, if regulator potentiometer RP1 does not still reach brightness requirement, the capacitance that suitably can increase and decrease electric capacity C3 regulates.
During high-luminance light source lighting, SP3T switch S 1 is placed in " high brightness ", and rechargeable battery BAT powers directly to high brightness lamp L1, provides illumination.
In embodiments of the present invention, by operation hilted broadsword three throw switch S1, portable lamp can be allowed to switch in two kinds of light sources, to meet the demand to illumination under varying environment, under portable lamp also can be operated in charge mode, facilitate the charge requirement under case of emergency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a lighting circuit, is characterized in that, described lighting circuit comprises:
Fuse F1, piezo-resistance RV, resistance R1, electric capacity C1, rectifier bridge BD1, filter capacitor C2, voltage-stabiliser tube VD1, diode D2, the first light source, secondary light source, SP3T switch S 1, rechargeable battery BAT, resistance R2, potentiometer RP1, electric capacity C3, complementary type multi-harmonic self-excited oscillation circuit, transformer T1 and charging display lamp LED;
The live wire of the first termination three-phase alternating current of described fuse F1, second end of described fuse F1 connects the first input end of rectifier bridge BD1 by resistance R1 in parallel and electric capacity C1, the zero line of the second input termination three-phase alternating current of described rectifier bridge BD1, between the second end that described piezo-resistance RV is connected to described fuse F1 and second input of rectifier bridge BD1, the diode D2 of the first output by series connection of described rectifier bridge BD1 and first moved end 1 of charging display lamp LED order cutter three throw switch S1, between the first output that described filter capacitor C2 and voltage-stabiliser tube VD1 is connected in parallel on described rectifier bridge BD1 and the second output, described first light source is connected between the 3rd moved end 3 of SP3T switch S 1 and ground, second moved end 2 of described SP3T switch S 1 connects the input of described complementary type multi-harmonic self-excited oscillation circuit and the first end of transformer T1 armature winding simultaneously, the not moved end 4 of described SP3T switch S 1 is by rechargeable battery BAT ground connection, the electric capacity C3 of the second end by connecting of described transformer T1 armature winding, resistance R2 and potentiometer RP1 ground connection, the control termination capacitor C3 of described complementary type multi-harmonic self-excited oscillation circuit and the public connecting end of resistance R2, second end of the output termination transformer T1 armature winding of described complementary type multi-harmonic self-excited oscillation circuit, the earth terminal ground connection of described complementary type multi-harmonic self-excited oscillation circuit, the two ends of described transformer T1 secondary winding connect positive pole and the negative pole of secondary light source respectively.
2. lighting circuit as claimed in claim 1, it is characterized in that, described complementary type multi-harmonic self-excited oscillation circuit comprises PNP type triode Q1 and NPN type triode Q2, the input of the very described complementary type multi-harmonic self-excited oscillation circuit of transmitting of described PNP type triode Q1, the base stage of described PNP type triode Q1 is the control end of described complementary type multi-harmonic self-excited oscillation circuit, the collector electrode of described PNP type triode Q1 connects the base stage of NPN type triode Q2, the output of the very described complementary type multi-harmonic self-excited oscillation circuit of current collection of described NPN type triode Q2, the earth terminal of the very described complementary type multi-harmonic self-excited oscillation circuit of transmitting of described NPN type triode Q2.
3. lighting circuit as claimed in claim 1, it is characterized in that, described complementary type multi-harmonic self-excited oscillation circuit comprises P type metal-oxide-semiconductor Q3 and N-type metal-oxide-semiconductor Q4, the source electrode of described P type metal-oxide-semiconductor Q3 is the input of described complementary type multi-harmonic self-excited oscillation circuit, the grid of described P type metal-oxide-semiconductor Q3 is the control end of described complementary type multi-harmonic self-excited oscillation circuit, the drain electrode of described P type metal-oxide-semiconductor Q3 connects the grid of N-type metal-oxide-semiconductor Q4, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the output of described complementary type multi-harmonic self-excited oscillation circuit, the source electrode of described N-type metal-oxide-semiconductor Q4 is the earth terminal of described complementary type multi-harmonic self-excited oscillation circuit.
4. lighting circuit as claimed in claim 1, it is characterized in that, described first light source is high brightness lamp, fluorescent lamp or LED.
5. lighting circuit as claimed in claim 1, it is characterized in that, described secondary light source is high brightness lamp, fluorescent lamp or LED.
6. a portable lamp, is characterized in that, described portable lamp comprises lighting circuit, and described lighting circuit comprises:
Fuse F1, piezo-resistance RV, resistance R1, electric capacity C1, rectifier bridge BD1, filter capacitor C2, voltage-stabiliser tube VD1, diode D2, the first light source, secondary light source, SP3T switch S 1, rechargeable battery BAT, resistance R2, potentiometer RP1, electric capacity C3, complementary type multi-harmonic self-excited oscillation circuit, transformer T1 and charging display lamp LED;
The live wire of the first termination three-phase alternating current of described fuse F1, second end of described fuse F1 connects the first input end of rectifier bridge BD1 by resistance R1 in parallel and electric capacity C1, the zero line of the second input termination three-phase alternating current of described rectifier bridge BD1, between the second end that described piezo-resistance RV is connected to described fuse F1 and second input of rectifier bridge BD1, the diode D2 of the first output by series connection of described rectifier bridge BD1 and first moved end 1 of charging display lamp LED order cutter three throw switch S1, between the first output that described filter capacitor C2 and voltage-stabiliser tube VD1 is connected in parallel on described rectifier bridge BD1 and the second output, described first light source is connected between the 3rd moved end 3 of SP3T switch S 1 and ground, second moved end 2 of described SP3T switch S 1 connects the input of described complementary type multi-harmonic self-excited oscillation circuit and the first end of transformer T1 armature winding simultaneously, the not moved end 4 of described SP3T switch S 1 is by rechargeable battery BAT ground connection, the electric capacity C3 of the second end by connecting of described transformer T1 armature winding, resistance R2 and potentiometer RP1 ground connection, the control termination capacitor C3 of described complementary type multi-harmonic self-excited oscillation circuit and the public connecting end of resistance R2, second end of the output termination transformer T1 armature winding of described complementary type multi-harmonic self-excited oscillation circuit, the earth terminal ground connection of described complementary type multi-harmonic self-excited oscillation circuit, the two ends of described transformer T1 secondary winding connect positive pole and the negative pole of secondary light source respectively.
7. portable lamp as claimed in claim 6, it is characterized in that, described complementary type multi-harmonic self-excited oscillation circuit comprises PNP type triode Q1 and NPN type triode Q2, the input of the very described complementary type multi-harmonic self-excited oscillation circuit of transmitting of described PNP type triode Q1, the base stage of described PNP type triode Q1 is the control end of described complementary type multi-harmonic self-excited oscillation circuit, the collector electrode of described PNP type triode Q1 connects the base stage of NPN type triode Q2, the output of the very described complementary type multi-harmonic self-excited oscillation circuit of current collection of described NPN type triode Q2, the earth terminal of the very described complementary type multi-harmonic self-excited oscillation circuit of transmitting of described NPN type triode Q2.
8. portable lamp as claimed in claim 6, it is characterized in that, described complementary type multi-harmonic self-excited oscillation circuit comprises P type metal-oxide-semiconductor Q3 and N-type metal-oxide-semiconductor Q4, the source electrode of described P type metal-oxide-semiconductor Q3 is the input of described complementary type multi-harmonic self-excited oscillation circuit, the grid of described P type metal-oxide-semiconductor Q3 is the control end of described complementary type multi-harmonic self-excited oscillation circuit, the drain electrode of described P type metal-oxide-semiconductor Q3 connects the grid of N-type metal-oxide-semiconductor Q4, the drain electrode of described N-type metal-oxide-semiconductor Q4 is the output of described complementary type multi-harmonic self-excited oscillation circuit, the source electrode of described N-type metal-oxide-semiconductor Q4 is the earth terminal of described complementary type multi-harmonic self-excited oscillation circuit.
9. portable lamp as claimed in claim 6, it is characterized in that, described first light source is high brightness lamp, fluorescent lamp or LED.
10. portable lamp as claimed in claim 6, it is characterized in that, described secondary light source is high brightness lamp, fluorescent lamp or LED.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489177.3A CN103841683B (en) | 2012-11-27 | 2012-11-27 | A kind of lighting circuit and portable lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489177.3A CN103841683B (en) | 2012-11-27 | 2012-11-27 | A kind of lighting circuit and portable lamp |
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| CN103841683A CN103841683A (en) | 2014-06-04 |
| CN103841683B true CN103841683B (en) | 2016-01-20 |
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| Publication number | Publication date |
|---|---|
| CN103841683A (en) | 2014-06-04 |
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