CN202143263U - Semiconductor energy saving lamp - Google Patents
Semiconductor energy saving lamp Download PDFInfo
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- CN202143263U CN202143263U CN201120241354U CN201120241354U CN202143263U CN 202143263 U CN202143263 U CN 202143263U CN 201120241354 U CN201120241354 U CN 201120241354U CN 201120241354 U CN201120241354 U CN 201120241354U CN 202143263 U CN202143263 U CN 202143263U
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- saving lamp
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- potential drop
- dividing potential
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to a lamp, and specially relates to a semiconductor energy saving lamp. The semiconductor energy saving lamp includes a light emitting diode set. The anode of the light emitting diode set is connected with the cathode of a time-delay opening transistor assembly, and the cathode of the light emitting diode set is connected with the cathode of the power supply. In the utility model, the semiconductor energy saving lamp provided in the utility model is advantageous by being able to be closed and started momentarily. When the semiconductor energy saving lamp is used with a DC source, the work current is the optimum current of the semiconductor luminescence device, which is suitable to be powered by a standard dry battery and a storage battery. When the semiconductor energy saving lamp is used with an AC source, and the power supply line is an inductive load line, the power supply line can achieve a better effect with the semiconductor energy saving lamp, the current of which is limited by a capacitor.
Description
Technical field
The utility model relates to a kind of lamp, relates in particular to a kind of semiconductor energy-saving lamp.
Background technology
In existing semiconductor light-emitting-diode is used, its representational being applied as: as back lighting, display screen and the board of instrument and meter and various kinds of equipment, light of stage decoration, portable lighting etc.Also few as the room lighting of real meaning and city illumination and road lighting.
Semiconductor light-emitting-diode---be present LED, single LED luminous power and driving voltage are all very low.In display screen and board, light of stage decoration, portable lighting, room lighting and city illumination and road lighting, all use a plurality of LED combinations to strengthen luminous power usually.
Thus, the LED combination needs independent driving power.Thereby the driving power of various multi-form LED combinations appearred.
Small-sized portable lighting---be that torch, head lamp etc. can be directly with dry cell, storage battery power supplies.The bigger portable lightings of power can't be directly with dry cell, storage battery power supply.
LED also has characteristics, and its electric current is very responsive to supply voltage, and when voltage slightly increases, electric current just increases a lot, but that its light output increases is few, very fast just saturated of the output variable of light.
Voltage slightly increases, and it is bigger that electric current increases, and the electric current that is equivalent to pass through is big more, and internal resistance is more little.
When voltage was slightly high, electric current increased a lot.Just can greatly reduce luminous efficiency and the useful life of LED, make its serviceability be lower than fluorescent lamp and gas electroluminescent lamp
Also because LED small-sized, its mounted inside required precision is high, occurs rigging error easily, causes that the LED required voltage of same specification is different with electric current.When under identical conditions, working, the product of different brightness, particularly different batches possibly appear.
Existing driving power to the great power LED associating power supply has various ways; All adopt modes such as transformer or electronic equipment; Become constant voltage or constant current driving power to 220 volts alternating voltages, alternating current as LED; Accurately adjust the LED assembly of voltage or electric current for needs, the constant voltage of its batch process or constant-current driving power supply just have been not suitable for.
Simple and easy methods such as " capacitance decompression ", resistance step-down have also been used in the fixing compact LED combination of using.
But, in the technology of existing use electric capacity, think that this technology is " a step-down technology ", and think that LED damages easily because electric capacity charges repeatedly.
" capacitance decompression " technology of use is to use principle improper, causes the LED lamp not reach energy-conservation and long-life effect.
In small-sized seven-color LED cup, " capacitance decompression " and resistance step-down method have just been used.But the seven-color LED cup just is used to decorate, and only requires decorative effect, or as floor light, just is not strict with the long-life energy-conservation.
The luminous diameter of used LED is about 1 millimeter in small-sized seven-color LED cup, and operating current is with milliamperemeter.
In application number was 201110094478.1 and 201120110765.2 semi-conductor lighting lamp, semi-conductor lighting lamp was used in room lighting and the city illumination and the road lighting that have proposed to be used for truly.But its current-limiting resistance in starting moment is the thermistor of negative temperature coefficient, and it uses inconvenient.After long-time use, the temperature of thermistor is higher, and resistance is very little, after the outage, does not allow to start once more use at short notice, thereby uses inconvenient.
Summary of the invention
For solving the problems of the technologies described above the utility model a kind of semiconductor energy-saving lamp is provided; Purpose is to make the LED lamp allow at short notice to start once more; Make and in room lighting and city illumination and road lighting, use the LED illumination easily, and make semiconductor energy-saving lamp play energy-conservation and long-life effect.
For achieving the above object; The utility model semiconductor energy-saving lamp; Comprise light-emitting diode group; The positive pole of light-emitting diode group is connected with the negative pole of delayed start-up transistor component, and the positive pole of delayed start-up transistor component is connected with the positive pole of power supply, and the negative pole of light-emitting diode group is connected with the negative pole of power supply.
Described power supply is a DC power supply.
Described delayed start-up transistor component is made up of following structure: be provided with dividing potential drop between the triode, the base stage of triode and an end that is connected positive source and use resistance, be provided with dividing potential drop between the base stage of triode and the positive pole of light-emitting diode group and use electric capacity.
When power supply is AC power; AC power is connected with the bridge rectifier input; The delayed start-up transistor component is located between the negative output terminal and light-emitting diode group positive pole of bridge rectifier; Delayed start-up transistor component parallel connection current-limiting resistance, light-emitting diode group two ends parallel connection buffer is used resistance with the electric capacity and first discharge thereof, and the positive output end of bridge rectifier is connected with the light-emitting diode group negative pole; Be in series with current limiting reactor between the input of bridge rectifier and the AC power, resistance is used in two ends parallel connection second discharge of current limiting reactor.
The combination of described current limiting reactor capacity reactance device, inductive reactance device or capacitor and inductance coil.
Described delayed start-up transistor component is made up of with electric capacity with resistance and dividing potential drop triode or thyristor and dividing potential drop.
When the transistor in the described delayed start-up transistor component is the positive-negative-positive triode, is provided with dividing potential drop between the base stage of triode and the emission collection and uses resistance, be provided with dividing potential drop between base stage and the collector electrode and use electric capacity.
When the transistor in the described delayed start-up transistor component is NPN type triode, is provided with dividing potential drop between the base stage of triode and the emission collection and uses electric capacity, be provided with dividing potential drop between base stage and the collector electrode and use resistance.
When the transistor in the described delayed start-up transistor component is thyristor, is provided with dividing potential drop between the control utmost point of thyristor and the anode and uses resistance, be provided with dividing potential drop between the control utmost point and the negative electrode and use electric capacity.
Because the minimum starting resistor of photogenerator is less than the voltage of standard dry cell batteries, storage battery.When the combination of high power semi-conductor photophore was directly worked under the voltage of standard dry cell batteries, storage battery, its operating current will be greater than optimum current, and luminous efficiency reduces, and increases power consumption, particularly for standard dry cell batteries, storage battery, needs the increase capacity.
The utility model has the advantages of:
The semiconductor energy-saving lamp that the utility model is made can close and start at any time.When the utility model was used for DC power supply, its operating current was the optimum current of photogenerator, was applicable to standard dry cell batteries, storage battery power supply.When the utility model is used for AC power, when supply line is inductive loaded line,, can make supply line reach better effect with the semiconductor energy-saving lamp of capacitor current limliting.
Common supply line, particularly light-loaded circuit insert the capacity load circuit and can improve the power factor (PF) of supply line.
When supply line is the capacity load circuit, can capacitor be changed to the inductive reactance device, can make supply line reach optimum efficiency.
Because the induction reactance of fixed inductive reactance device can not arbitrarily be adjusted, come its serial or parallel connection with capacitor when needing adjustment, to increase or to reduce its reactance, promptly become the reactor that inductance induction reactance and electric capacity capacitive reactance are formed.
The capacitive reactance of capacitor can directly use the capacitor of different capabilities to change, and the adjustment of its capacitive reactance is very convenient.
The utility model can be adjusted the electric current of every group of semiconductor energy-saving lamp easily, and it is worked under optimal state, reach energy-conservation, the long-life effect of semiconductor energy-saving lamp, and cost is low, and fault is few, is easy to realize.
Description of drawings
Fig. 1 is the circuit theory diagrams that are used for DC power supply of the utility model, is example with the positive-negative-positive triode among the figure.
Fig. 2 is the circuit theory diagrams that are used for AC power of the utility model, is example with the positive-negative-positive triode among the figure.
Fig. 3 is the delayed start-up transistor component of NPN type triode.
Fig. 4 is a P type thyristor assembly.
Fig. 5 is a N type thyristor assembly.
Among the figure: 1, light-emitting diode group; 2, buffering is used electric capacity; 3, resistance is used in first discharge; 4, current-limiting resistance; 5, positive-negative-positive triode; 6, dividing potential drop is used resistance; 7, dividing potential drop is used electric capacity; 8, bridge rectifier; 9, current limiting reactor; 10, resistance is used in second discharge.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The utility model semiconductor energy-saving lamp as shown in Figure 1; Comprise light-emitting diode group 1; The positive pole of light-emitting diode group 1 is connected with the negative pole of delayed start-up transistor component; The positive pole of delayed start-up transistor component is connected with the positive pole of power supply, and the negative pole of light-emitting diode group is connected with the negative pole of power supply, and power supply is a DC power supply; The delayed start-up transistor component is made up of following structure: positive-negative-positive triode 5, and be provided with dividing potential drop between the base stage of triode 5 and the emission collection and use resistance, be provided with dividing potential drop between base stage and the collector electrode and use electric capacity.
The adjustment dividing potential drop just can change the amplification coefficient of triode with resistance 6, promptly is to change output current; The adjustment dividing potential drop just can change the time of conducting between the emitter and collector with electric capacity 7.Make the assembly of the light-emitting diode of varying number can both use the DC power supply of standard easily, and the light-emitting diode group timesharing of respectively organizing of same power supply power supply is opened, avoid DC power supply such as storage battery moment to emit big electric current.
The utility model semiconductor energy-saving lamp as shown in Figure 2; When power supply was AC power, AC power was connected with bridge rectifier 8 inputs, and the delayed start-up transistor component is located between the negative output terminal and light-emitting diode group 1 positive pole of bridge rectifier 8; Delayed start-up transistor component parallel connection current-limiting resistance 4; Light-emitting diode group 1 two ends parallel connection buffer discharges with resistance 3 with electric capacity 2 and first, and the positive output end of bridge rectifier is connected with the light-emitting diode group negative pole, is in series with current limiting reactor 9 between the input of bridge rectifier 8 and the AC power; Two ends parallel connection second discharge of current limiting reactor 9 is with resistance 10, and current limiting reactor 9 is the capacity reactance device; The delayed start-up transistor component is made up of with electric capacity with resistance and dividing potential drop triode or thyristor and dividing potential drop; When the transistor in the delayed start-up transistor component is positive-negative-positive triode 5, be provided with dividing potential drop with resistance 6 between the base stage of triode and the emission collection, be provided with dividing potential drop between base stage and the collector electrode with electric capacity 7.
Current limiting reactor 9 is the inductive reactance device among the embodiment 2, when the transistor in the delayed start-up transistor component as shown in Figure 3 is NPN type triode, is provided with dividing potential drop with electric capacity 7 between the base stage of triode and the emission collection, is provided with dividing potential drop between base stage and the collector electrode with resistance 6.
Embodiment 4
Current limiting reactor 9 is the combination of capacitor and inductance coil among the embodiment 2; When the transistor shown in Fig. 4-5 in the delayed start-up transistor component is thyristor; Be provided with dividing potential drop with resistance 6 between the control utmost point of thyristor and the anode, be provided with dividing potential drop with electric capacity 7 between the control utmost point and the negative electrode.
Be detailed description below to circuit theory diagrams.
For ease of explanation and formula of reduction, the following buffering of omitting in various is used resistance with electric capacity and two discharges.
When the semiconductor energy-saving lamp operate as normal, electric current is in the circuit:
When current limiting reactor is the capacity reactance device
;
When current limiting reactor is the inductive reactance device
;
U is a supply voltage;
R be light-emitting diode group in the circuit internal resistance, current-limiting resistance and other elements etc. resistance and;
X
LBe the induction reactance of inductor, X
L=2 π fL, wherein f is a supply frequency, L is an inductance;
X
CBe the capacitive reactance of capacitor, X
C=1/2 π fC, wherein C is an electric capacity.
Because the operating current of semiconductor energy-saving lamp is less, and its internal resistance is very little, the internal resistance after a plurality of LED series connection and also little, required capacitive reactance or induction reactance are bigger.
Even by the above-mentioned various R resistance of can learning bigger variation is arranged, change in current is also very little, can accomplish very accurate with capacitive reactance or induction reactance to the restriction of electric current.Even R=is X
L=X
CThe time, with the R short circuit, electric current also can only increase to 1.4142 times.
When inductance impedor and the series connection of capacity reactance device, electric current is in the circuit:
；
When inductance impedor and the parallel connection of electric capacity capacitive reactance device, the reactance of current limiting reactor does
X=?X
LX
C/（X
C-X
L）
Variously know by above-mentioned, with the current limiting reactor size of Control current exactly.
Again according to the switching law of circuit
When the moment of inductive reactance device current-limiting circuit energising, electric current does in the circuit
I=U（1-e
-Rt/L）/R
When the moment of capacitor current-limiting circuit energising, electric current does in the circuit
I=Ue
-t/RC/R
Therefore, when the R value was very little, electric current was very big in the moment of connecting in the circuit, and the damage of LED just occurs in connects constantly.
Because LED can not connect too much, so the internal resistance after a plurality of LED series connection and also little, the internal resistance when particularly electric current is excessive is littler.Must the suitable current-limiting resistance of series connection.
When the operating current of circuit was very little, current-limiting resistance can be a conventional, electric-resistance.
As the illuminating lamp of real meaning, its electric current is bigger, reaches the electric current of ampere level, after starting, just can not use the conventional, electric-resistance current limliting again.Must use the thermistor of negative temperature coefficient to make current-limiting resistance or, could reduce energy consumption, reach energy-conservation and long-life effect of using semiconductor energy-saving lamp the current-limiting resistance short circuit.
But it is very inconvenient that the thermistor that uses negative temperature coefficient is made current-limiting resistance.
The utility model uses delayed start-up transistor component and current-limiting resistance parallel connection, after the startup in due course between in to the current-limiting resistance short circuit, in order to reduce energy consumption and to protect light-emitting diode group.Reach energy-conservation and long-life effect of semiconductor energy-saving lamp.Can frequently open and close, easy to use, unrestricted.
Because triode and thyristor element temperature influence, conducting in advance easily must be disposed buffering and used electric capacity.
When the moment of opening, bigger electric current or issuable super-high-current pass through through current-limiting resistance and buffering electricity consumption appearance, in order to the protection light-emitting diode group.Simultaneously; The dividing potential drop of the delayed start-up transistor component parallelly connected with current-limiting resistance is used the electric capacity conducting with resistance and dividing potential drop; The terminal voltage of dividing potential drop electric capacity is progressively set up; When the voltage of the electric current of divider resistance and dividing potential drop electric capacity reaches the value that needs, the conducting of just delaying time between the emitter and collector of triode, the electric current of this moment also has been reduced to suitable size.At this moment current-limiting resistance has been reduced energy consumption by short circuit, has protected light-emitting diode group again.
When the discharge of current limiting reactor is used for shut-off circuit with resistance to capacitor discharge, contingent shock hazard when preventing to dismantle.
The terminal voltage of current limiting capacitance when work does
U
LCDBe the terminal voltage sum after a plurality of LED series connection, the internal resistance after a plurality of LED series connection and also little, U
LCDAlso little, the terminal voltage of transistor component and current-limiting resistance is minimum, omits and disregards.Therefore the terminal voltage of current limiting capacitance when work is quite high.
Do not use resistance when current limiting reactor has parallel discharge, when connecting circuit once more, its terminal voltage possibly impact to LED with the supply voltage superposition.
When the current limiting reactor discharge is used for shut-off circuit with resistance inductor is discharged, the electric spark in the time of can reducing to close is to the infringement of switch.
Resistance to the reactor discharge is very big, can reach 200K or bigger, and the influence during to the circuit operate as normal is minimum, and energy consumption is also minimum.
Buffering is in the moment of opening with the main effect of electric capacity, and bigger electric current or issuable super-high-current pass through through current-limiting resistance and buffering electricity consumption appearance, in order to the protection light-emitting diode group.
Because of the terminal voltage of light-emitting diode group is lower, should be smaller to buffering with the resistance of capacitor discharge.After reaching open circuit, can buffering be discharged fully with electric capacity.When guaranteeing to start once more, buffering can be effectively through starting big electric current or the excessive electric current of moment, the protection light-emitting diode group with electric capacity.
Claims (9)
1. semiconductor energy-saving lamp; Comprise light-emitting diode group; The positive pole that it is characterized in that light-emitting diode group is connected with the negative pole of delayed start-up transistor component, and the positive pole of delayed start-up transistor component is connected with the positive pole of power supply, and the negative pole of light-emitting diode group is connected with the negative pole of power supply.
2. semiconductor energy-saving lamp according to claim 1 is characterized in that described power supply is a DC power supply.
3. semiconductor energy-saving lamp according to claim 1; It is characterized in that described delayed start-up transistor component is made up of following structure: triode; Be provided with dividing potential drop between the base stage of triode and the end that is connected positive source and use resistance, be provided with dividing potential drop between the base stage of triode and the positive pole of light-emitting diode group and use electric capacity.
4. semiconductor energy-saving lamp according to claim 1; When it is characterized in that power supply is AC power; AC power is connected with the bridge rectifier input, and the delayed start-up transistor component is located between the negative output terminal and light-emitting diode group positive pole of bridge rectifier, delayed start-up transistor component parallel connection current-limiting resistance; Light-emitting diode group two ends parallel connection buffer is used resistance with the electric capacity and first discharge thereof; The positive output end of bridge rectifier is connected with the light-emitting diode group negative pole, is in series with current limiting reactor between the input of bridge rectifier and the AC power, and resistance is used in two ends parallel connection second discharge of current limiting reactor.
5. semiconductor energy-saving lamp according to claim 4 is characterized in that the combination of described current limiting reactor capacity reactance device, inductive reactance device or capacitor and inductance coil.
6. semiconductor energy-saving lamp according to claim 4 is characterized in that described delayed start-up transistor component is made up of with electric capacity with resistance and dividing potential drop triode or thyristor and dividing potential drop.
7. semiconductor energy-saving lamp according to claim 6; When it is characterized in that transistor in the described delayed start-up transistor component is the positive-negative-positive triode; Be provided with dividing potential drop between the base stage of triode and the emission collection and use resistance, be provided with dividing potential drop between base stage and the collector electrode and use electric capacity.
8. semiconductor energy-saving lamp according to claim 6; When it is characterized in that transistor in the described delayed start-up transistor component is NPN type triode; Be provided with dividing potential drop between the base stage of triode and the emission collection and use electric capacity, be provided with dividing potential drop between base stage and the collector electrode and use resistance.
9. semiconductor energy-saving lamp according to claim 6; When it is characterized in that transistor in the described delayed start-up transistor component is thyristor; Be provided with dividing potential drop between the control utmost point of thyristor and the anode and use resistance, be provided with dividing potential drop between the control utmost point and the negative electrode and use electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120241354U CN202143263U (en) | 2011-07-11 | 2011-07-11 | Semiconductor energy saving lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120241354U CN202143263U (en) | 2011-07-11 | 2011-07-11 | Semiconductor energy saving lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202143263U true CN202143263U (en) | 2012-02-08 |
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ID=45554298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120241354U Expired - Fee Related CN202143263U (en) | 2011-07-11 | 2011-07-11 | Semiconductor energy saving lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202143263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287739A (en) * | 2011-07-11 | 2011-12-21 | 周必忠 | Semiconductor energy-saving lamp |
| CN102752895A (en) * | 2012-06-18 | 2012-10-24 | 陈国富 | Capacitance voltage-reduction LED (light emitting diode) lighting device with constant current, constant voltage and protection functions |
-
2011
- 2011-07-11 CN CN201120241354U patent/CN202143263U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287739A (en) * | 2011-07-11 | 2011-12-21 | 周必忠 | Semiconductor energy-saving lamp |
| CN102752895A (en) * | 2012-06-18 | 2012-10-24 | 陈国富 | Capacitance voltage-reduction LED (light emitting diode) lighting device with constant current, constant voltage and protection functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150711 |
|
| EXPY | Termination of patent right or utility model |