CN202005010U - Practical LED energy saving lamp - Google Patents
Practical LED energy saving lamp Download PDFInfo
- Publication number
- CN202005010U CN202005010U CN2010206152842U CN201020615284U CN202005010U CN 202005010 U CN202005010 U CN 202005010U CN 2010206152842 U CN2010206152842 U CN 2010206152842U CN 201020615284 U CN201020615284 U CN 201020615284U CN 202005010 U CN202005010 U CN 202005010U
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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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The present utility model discloses a practical LED energy saving lamp which comprises an utility power input, an input protection circuit, a rectification filter circuit, an EMI filter circuit, a switch voltage stabilization and current stabilization circuit, an output sampling circuit and an output protection circuit. The input end of the input protection circuit is electrically connected with the utility power input, the output end of the input protection circuit is electrically connected with the input end of the EMI filter circuit, the output end of the EMI filter circuit is electrically connected with the input end of the rectification filter circuit, the output end of the rectification filter circuit is electrically connected with the input end of the switch voltage stabilization and current stabilization circuit, the output end of the switch voltage stabilization and current stabilization circuit is electrically connected with the input end of the output sampling circuit, and the output end of the output sampling circuit is electrically connected with the input end of the switch voltage stabilization and current stabilization circuit. The LED energy saving lamp is safe and environmental friendly in use, long in service life, high in reliability and cheap in costs.
Description
Technical field
The utility model relates to a kind of electricity-saving lamp, particularly a kind of practical LED electricity-saving lamp.
Background technology
The lamp pearl of LED electricity-saving lamp is a kind of semiconductor solid luminescence device, and it is to utilize the solid semiconductor chip as luminescent material, and when two ends add forward voltage, the charge carrier in the semiconductor takes place compoundly to cause photo emissions and produce light.Because LED electricity-saving lamp good energy-conserving effect, everybody all fund input in the manufacturing of LED electricity-saving lamp.From the manufacturing principle of LED and voltage-current characteristic as can be known, LED needs constant electric current power supply, and it is reliable that heat radiation is wanted, otherwise can shorten the useful life of LED greatly.The LED electricity-saving lamp great majority of now producing on the market and selling adopt general Switching Power Supply (being constant pressure source) or capacitance resistance step-down mode, can not guarantee constant electric current power supply.Another is common isolated form constant current LED lamp, and number of elements is many, and impact resistance is poor, and the life-span, short also the application to LED brought no small loss.Existing LED electricity-saving lamp constant current weak effect, impact resistance is poor, and the life-span is poor, can not guarantee the life-span of LED lamp lamp pearl, and light decay is serious, poor reliability, power factor is low, and is bigger to electrical network harm.
The utility model content
The purpose of this utility model just is to provide a kind of safe in utilization, environmental protection, and the life-span is long, and reliability height, and the low practical LED electricity-saving lamp of cost can effectively address the above problem.
To achieve these goals; the technical solution adopted in the utility model is such: practical LED electricity-saving lamp of the present utility model; comprise the civil power input; input protection circuit; current rectifying and wave filtering circuit; the EMI filter circuit; the switch voltage-stabilizing current stabilization circuit; output sampling circuit and output and protective circuit; the input of input protection circuit and civil power input are electrically connected; the input of output and EMI filter circuit is electrically connected; the output of EMI filter circuit and the input of current rectifying and wave filtering circuit are electrically connected; the input of the output of current rectifying and wave filtering circuit and switch voltage-stabilizing current stabilization circuit is electrically connected; the output of switch voltage-stabilizing current stabilization circuit and the input of output sampling circuit are electrically connected, and the input of the output of output sampling circuit and output and protective circuit and switch voltage-stabilizing current stabilization circuit is electrically connected.
As preferably; described EMI filter circuit is by two inductance L 1, L2; two resistance R 1, R2 and two capacitor C 1, C2 form; two inductance L 1, L2 two ends are electrically connected with input protection circuit and current rectifying and wave filtering circuit respectively; resistance R 1 is in parallel with inductance L 1; resistance R 2 is in parallel with inductance L 2, and two capacitor C 1, C2 are connected between the peer of two resistance R 1, R2.
As preferably, described current rectifying and wave filtering circuit is by rectifier bridge, three capacitor C 3, C4, C5, three diode D1, D2, D3 and resistance R 4 are formed, rectifier bridge is connected with the EMI filter circuit, and capacitor C 4, diode D2 and resistance R 4 series connection backs are in parallel with diode D3, connect with capacitor C 5 again, be electrically connected with rectifier bridge and switch voltage-stabilizing current stabilization circuit with capacitor C 3 backs in parallel then, diode D1 is connected in parallel between diode D2 and the rectifier bridge.
As preferably, described output and protective circuit comprise three diode D4, D5, D6, a capacitor C 8 and a resistance R 7; diode D4, D5 series connection; capacitor C 8 is connected with diode D4 with resistance R 7 backs in parallel, and is in parallel with diode D4, D5 again, is electrically connected with output sampling circuit then.
Compared with prior art, advantage of the present utility model is:
1, voltage adaptation wide ranges: when alternating current changed between 265V at 85V, output current remained unchanged, thereby made also no change of brightness, i.e. brightness constancy.
2, constant current is effective; Can guarantee that under the control of IC ic power the fluctuation range of output current is in 3%, the LED lamp is made of semiconductor light-emitting-diode, the characteristic of light-emitting diode has determined it only to work under constant electric current could guarantee its life-span, and is unlikely to very fast damage.
3, the life-span of LED lamp is long: can use more than 50,000 hours, because the driving of LED lamp adopts advanced constant-current source to drive, have highly stable output current and perfect protective circuit.
5, good impact resistance: switch all has good impact resistance when low pressure or high voltage startup repeatedly, can guarantee that switch is not damaged repeatedly.
6, conversion efficiency height: the power source conversion of this circuit has adopted the switch PWM mode, can reach more than 85% thereby improved utilance, thereby the LED lamp of comparing other is more reliable, more energy-conservation.
7, power factor (PF) height: owing to adopted the valley fill type filter circuit that power factor (PF) is improved greatly, guarantee, thereby improved the utilance of electrical network more than 0.9.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model;
Fig. 2 is the utility model circuit diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2; practical LED electricity-saving lamp of the present utility model; comprise the civil power input; input protection circuit; current rectifying and wave filtering circuit; the EMI filter circuit; the switch voltage-stabilizing current stabilization circuit; output sampling circuit and output and protective circuit; the input of input protection circuit and civil power input are electrically connected; the input of output and EMI filter circuit is electrically connected; the output of EMI filter circuit and the input of current rectifying and wave filtering circuit are electrically connected; the input of the output of current rectifying and wave filtering circuit and switch voltage-stabilizing current stabilization circuit is electrically connected; the output of switch voltage-stabilizing current stabilization circuit and the input of output sampling circuit are electrically connected, and the input of the output of output sampling circuit and output and protective circuit and switch voltage-stabilizing current stabilization circuit is electrically connected.
Described EMI filter circuit is by two inductance L 1, L2; two resistance R 1, R2 and two capacitor C 1, C2 form; two inductance L 1, L2 two ends are electrically connected with input protection circuit and current rectifying and wave filtering circuit respectively; resistance R 1 is in parallel with inductance L 1; resistance R 2 is in parallel with inductance L 2, and two capacitor C 1, C2 are connected between the peer of two resistance R 1, R2.
Described current rectifying and wave filtering circuit is by rectifier bridge, three capacitor C 3, C4, C5, three diode D1, D2, D3 and resistance R 4 are formed, rectifier bridge is connected with the EMI filter circuit, capacitor C 4, diode D2 and resistance R 4 series connection backs are in parallel with diode D3, connect with capacitor C 5, be electrically connected with rectifier bridge and switch voltage-stabilizing current stabilization circuit with capacitor C 3 backs in parallel then, diode D1 is connected in parallel between diode D2 and the rectifier bridge.
Described output and protective circuit comprise three diode D4, D5, D6; a capacitor C 8 and a resistance R 7, diode D4, D5 series connection, capacitor C 8 is connected with diode D4 with resistance R 7 backs in parallel; in parallel with diode D4, D5 again, be electrically connected with output sampling circuit then.
Electric main after fuse F1 insurance by piezo-resistance VDR overvoltage protection; prevent that line voltage is too high; the impact of also can prevent thunder and lightning, surging etc.; guarantee that the LED lamp can not damage because of the fluctuation of electrical network and the impact of surging, extraneous high electricity and user's frequent switch lamp, guarantees the long-life of LED lamp.By inductance L 1, L2, resistance R 1, R2, capacitor C 1, C2 form the EMI filter circuit, prevent that High-frequency Interference from exerting an influence to other electrical equipment and human body.Resistance R T and resistance R 3 are formed circuit overcurrent protection; guarantee the soft start of switch step-down IC; again after rectifier bridge DD1 rectification by capacitor C 3, C4, C5; diode D1, D2, D3 and resistance R 4 are formed current rectifying and wave filtering circuit; the smoothness that is used for corrected power factor and Rectified alternating current; the power factor (PF) of circuit is reached more than 0.9; guarantee the smoothness of input current simultaneously with the utilization ratio that improves electrical network; send into again in the integrated circuit under the effect of IC switch PWM control mode, stablize output current.When the electric current of the feedback pin of chip module surpasses certain value in flowing to the IC switch, adjust in the switching time that the generation of the two ends of resistance R 6 and capacitor C 7 is sent into 4 pairs of switch modules of feedback pin above 2 volts voltage, thus the stability of assurance output current.Adjusted output current releases energy through diode D4 commutation capacitor C8 filtering when switching tube ends through inductance L 3 energy storage, then output.Resistance R 7 plays steady load and repid discharge, can bleed off the voltage at capacitor C 8 two ends when powered-down fast, guarantees that the LED lamp can extinguish fast.Diode D5, D6 conducting when load open circuit limits output voltage and keeps less output current, thereby guarantees that the IC integrated package can not damage because of unloaded.
This circuit performance is superior, and is with low cost, and number of elements is few, and good stability guarantees LED lamp long service life.
Claims (4)
1. practical LED electricity-saving lamp; comprise the civil power input; input protection circuit and current rectifying and wave filtering circuit; it is characterized in that: also comprise the EMI filter circuit; the switch voltage-stabilizing current stabilization circuit; output sampling circuit and output and protective circuit; the input of input protection circuit and civil power input are electrically connected; the input of output and EMI filter circuit is electrically connected; the output of EMI filter circuit and the input of current rectifying and wave filtering circuit are electrically connected; the input of the output of current rectifying and wave filtering circuit and switch voltage-stabilizing current stabilization circuit is electrically connected; the output of switch voltage-stabilizing current stabilization circuit and the input of output sampling circuit are electrically connected, and the input of the output of output sampling circuit and output and protective circuit and switch voltage-stabilizing current stabilization circuit is electrically connected.
2. practical LED electricity-saving lamp according to claim 1; it is characterized in that: described EMI filter circuit is by two inductance L 1, L2; two resistance R 1, R2 and two capacitor C 1, C2 form; two inductance L 1, L2 two ends are electrically connected with input protection circuit and current rectifying and wave filtering circuit respectively; resistance R 1 is in parallel with inductance L 1; resistance R 2 is in parallel with inductance L 2, and two capacitor C 1, C2 are connected between the peer of two resistance R 1, R2.
3. practical LED electricity-saving lamp according to claim 1, it is characterized in that: described current rectifying and wave filtering circuit is by rectifier bridge, three capacitor C 3, C4, C5, three diode D1, D2, D3 and resistance R 4 are formed, rectifier bridge is connected with the EMI filter circuit, and capacitor C 4, diode D2 and resistance R 4 series connection backs are in parallel with diode D3, connect with capacitor C 5 again, be electrically connected with rectifier bridge and switch voltage-stabilizing current stabilization circuit with capacitor C 3 backs in parallel then, diode D1 is connected in parallel between diode D2 and the rectifier bridge.
4. practical LED electricity-saving lamp according to claim 1; it is characterized in that: described output and protective circuit comprise three diode D4, D5, D6; a capacitor C 8 and a resistance R 7; diode D4, D5 series connection; capacitor C 8 is connected with diode D4 with resistance R 7 backs in parallel; in parallel with diode D4, D5 again, be electrically connected with output sampling circuit then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206152842U CN202005010U (en) | 2010-11-18 | 2010-11-18 | Practical LED energy saving lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206152842U CN202005010U (en) | 2010-11-18 | 2010-11-18 | Practical LED energy saving lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202005010U true CN202005010U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206152842U Expired - Fee Related CN202005010U (en) | 2010-11-18 | 2010-11-18 | Practical LED energy saving lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202005010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993722A (en) * | 2015-07-26 | 2015-10-21 | 安徽彼德森电气设备有限公司 | High-frequency switch rectifying module |
| CN107222113A (en) * | 2016-12-28 | 2017-09-29 | 中国航天电子技术研究院 | A kind of wide pressure or voltage-stabilized power supply circuit with self feed back self-protection function |
-
2010
- 2010-11-18 CN CN2010206152842U patent/CN202005010U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993722A (en) * | 2015-07-26 | 2015-10-21 | 安徽彼德森电气设备有限公司 | High-frequency switch rectifying module |
| CN107222113A (en) * | 2016-12-28 | 2017-09-29 | 中国航天电子技术研究院 | A kind of wide pressure or voltage-stabilized power supply circuit with self feed back self-protection function |
| CN107222113B (en) * | 2016-12-28 | 2019-12-31 | 中国航天电子技术研究院 | Wide voltage or voltage-stabilized power supply circuit with self-feedback self-protection function |
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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: 20111005 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |