CN204929332U - LED light of safety and stability - Google Patents
LED light of safety and stability Download PDFInfo
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- CN204929332U CN204929332U CN201520565318.4U CN201520565318U CN204929332U CN 204929332 U CN204929332 U CN 204929332U CN 201520565318 U CN201520565318 U CN 201520565318U CN 204929332 U CN204929332 U CN 204929332U
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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 discloses a LED light of safety and stability, including resistance R4, electric capacity C6, unidirectional thyristor Q1 and triode V1, electric capacity C6 and 220V alternating current are connected to resistance R4's one end, and electric capacity C6 is connected to resistance R4's the other end the other end, transient voltage restrain diode DW and fuse FU, and rectifier bridge T's port 1 is connected to fuse FU's the other end, and rectifier bridge T's port 3 is connected transient voltage and is restrained diode DW's the other end and the other end of 220V alternating current. The utility model discloses LED supply circuit simple structure, components and parts are few, have abandoned the great transformer structure of volume to use transient voltage to eliminate the fluctuation of commercial power electric wire netting with restraining the diode, the circuit has the overvoltage protection function simultaneously, can be suitable for the relatively poor region of electric wire netting environment, has consequently that the function is various, the cost of manufacture low and the advantage of stable performance.
Description
Technical field
The utility model relates to a kind of power supply circuits, specifically a kind of LED illumination lamp of safety and stability.
Background technology
LED is acknowledged as green forth generation light source, is a kind of solid cold light source, has the plurality of advantages such as efficient, life-span length, safety and environmental protection, volume are little, high reliability, fast response time.Reach same illuminating effect at present, the power consumption of LED is approximately 1/10 of incandescent lamp, 1/2 of fluorescent lamp, LED power circuit is concerning most important LED, and LED power conventional mostly at present is transformer pressure-reducing structure, and not only volume is large, cost is high, and the easy short circuit of transformer coil, affect the normal use of LED lamp, and the most function singleness of existing LED power, the scope of application is less.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, the LED illumination lamp of the safety and stability of diverse in function, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A LED illumination lamp for safety and stability, comprises resistance R4, electric capacity C6, one end of unidirectional thyristor Q1 and triode V1, described resistance R4 connects electric capacity C6 and 220V alternating current, and the other end of resistance R4 connects the other end of electric capacity C6, the other end of transient voltage suppressor diode DW and fuse FU, fuse FU connects the port one of rectifier bridge T, and the port 3 of rectifier bridge T connects the other end of transient voltage suppressor diode DW and the other end of 220V alternating current, and the port 2 of rectifier bridge T connects electric capacity C1, resistance R1, resistance R2, the negative electrode of diode D3, the emitter of triode V1 and the positive pole of unidirectional thyristor Q1, the negative pole of unidirectional thyristor Q1 connects the other end of electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, the other end of resistance R1, resistance R3, the pin 2 of chip IC 1, the port 4 of rectifier bridge T and LED group H, the other end of resistance R2 connects the other end of electric capacity C2, and the base stage of triode V1 connects the other end of electric capacity C3, the negative electrode of diode D1 and the pin 1 of chip IC 1, the anode of diode D1 connects the other end of electric capacity C4, the negative electrode of diode D2, the anode of diode D3, the other end of electric capacity C5, a stiff end of potentiometer RP1, the sliding end of potentiometer RP1 and the pin 3 of chip IC 1, the other end of anode contact resistance R3 of diode D2 and the control pole of unidirectional thyristor Q1, another stiff end of potentiometer RP1 connects the other end of LED group H, and the model of chip IC 1 is W7812.
As preferred version of the present utility model: described diode D1 and diode D3 is voltage stabilizing didoe.
Compared with prior art; the beneficial effects of the utility model are: the utility model LED power supply circuit construction is simple, components and parts are few; abandon the transformer device structure that volume is larger; and use transient voltage twin zener dioder to eliminate the fluctuation of utility grid; circuit has over-voltage protecting function simultaneously; the region that power grid environment is poor can be suitable for, therefore there is the advantage of the low and stable performance of diverse in function, cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the LED illumination lamp of safety and stability.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of LED illumination lamp of safety and stability, comprise resistance R4, electric capacity C6, one end of unidirectional thyristor Q1 and triode V1, described resistance R4 connects electric capacity C6 and 220V alternating current, and the other end of resistance R4 connects the other end of electric capacity C6, the other end of transient voltage suppressor diode DW and fuse FU, fuse FU connects the port one of rectifier bridge T, and the port 3 of rectifier bridge T connects the other end of transient voltage suppressor diode DW and the other end of 220V alternating current, and the port 2 of rectifier bridge T connects electric capacity C1, resistance R1, resistance R2, the negative electrode of diode D3, the emitter of triode V1 and the positive pole of unidirectional thyristor Q1, the negative pole of unidirectional thyristor Q1 connects the other end of electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, the other end of resistance R1, resistance R3, the pin 2 of chip IC 1, the port 4 of rectifier bridge T and LED group H, the other end of resistance R2 connects the other end of electric capacity C2, and the base stage of triode V1 connects the other end of electric capacity C3, the negative electrode of diode D1 and the pin 1 of chip IC 1, the anode of diode D1 connects the other end of electric capacity C4, the negative electrode of diode D2, the anode of diode D3, the other end of electric capacity C5, a stiff end of potentiometer RP1, the sliding end of potentiometer RP1 and the pin 3 of chip IC 1, the other end of anode contact resistance R3 of diode D2 and the control pole of unidirectional thyristor Q1, another stiff end of potentiometer RP1 connects the other end of LED group H, and the model of chip IC 1 is W7812.
Diode D1 and diode D3 is voltage stabilizing didoe.
Operation principle of the present utility model is: 220V voltage is through resistance R7 and electric capacity C7 step-down; rectifier bridge T bridge rectifier; electric capacity C1 filtering; the voltage stabilizing of chip IC 1 can obtain level and smooth 12V direct voltage; large power triode V1 in circuit plays and expands stream effect, and chip IC 1 inside is containing overheated and place of safety protective circuit.However, still likely there is moment overvoltage in the output end of stabilized voltage supply be made up of chip IC 1 and triode V1 etc.For guaranteeing the safety of load, this power supply has set up again overvoltage crowbar, the compositions such as this electric routing zener D2, resistance R3, thyristor Q1 and quick acting fuse pipe FU.When this power supply normally works, output voltage is 12V, and thyristor Q1 is cut-off state.When output voltage exceedes limit value, voltage-stabiliser tube D2 punctures, and the voltage on such resistance R3 raises thus makes thyristor Q1 triggering and conducting, fuse FU is fused, thus protects load.At 1,2 pin of the emitter expanding stream pipe V1 and inter-collector and chip IC 1 diode D1 and D3 in parallel respectively, being used for protection expands to flow and manages and integrated circuit, is used for chip IC 1.When input be short-circuited or output overvoltage and make thyristor Q1 conducting cause input short circuit time, voltage-stabiliser tube input terminal voltage because of fuse failure be zero immediately, electric charge sufficient on output terminal capacitor C5 then can not discharge immediately, thus cause output transient voltage higher than input terminal voltage, in order to prevent this peak-inverse voltage from puncturing V1 power tube or chip IC 1, diode D1 and D3 is utilized to be fallen by this charge discharging resisting.Transient voltage suppressor diode DW be used for will the peak voltage clamper that produce in city's electro-mechanical wave to safety value, avoid the impact that voltage instability causes to illumination, potentiometer RP1 conveniently can regulate the brightness of light fixture.
Claims (2)
1. a LED illumination lamp for safety and stability, comprises resistance R4, electric capacity C6, unidirectional thyristor Q1 and triode V1, is characterized in that, one end of described resistance R4 connects electric capacity C6 and 220V alternating current, and the other end of resistance R4 connects the other end of electric capacity C6, the other end of transient voltage suppressor diode DW and fuse FU, fuse FU connects the port one of rectifier bridge T, and the port 3 of rectifier bridge T connects the other end of transient voltage suppressor diode DW and the other end of 220V alternating current, and the port 2 of rectifier bridge T connects electric capacity C1, resistance R1, resistance R2, the negative electrode of diode D3, the emitter of triode V1 and the positive pole of unidirectional thyristor Q1, the negative pole of unidirectional thyristor Q1 connects the other end of electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, the other end of resistance R1, resistance R3, the pin 2 of chip IC 1, the port 4 of rectifier bridge T and LED group H, the other end of resistance R2 connects the other end of electric capacity C2, and the base stage of triode V1 connects the other end of electric capacity C3, the negative electrode of diode D1 and the pin 1 of chip IC 1, the anode of diode D1 connects the other end of electric capacity C4, the negative electrode of diode D2, the anode of diode D3, the other end of electric capacity C5, a stiff end of potentiometer RP1, the sliding end of potentiometer RP1 and the pin 3 of chip IC 1, the other end of anode contact resistance R3 of diode D2 and the control pole of unidirectional thyristor Q1, another stiff end of potentiometer RP1 connects the other end of LED group H, and the model of chip IC 1 is W7812.
2. the LED illumination lamp of a kind of safety and stability according to claim 1, is characterized in that, described diode D1 and diode D3 is voltage stabilizing didoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565318.4U CN204929332U (en) | 2015-07-28 | 2015-07-28 | LED light of safety and stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565318.4U CN204929332U (en) | 2015-07-28 | 2015-07-28 | LED light of safety and stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204929332U true CN204929332U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520565318.4U Expired - Fee Related CN204929332U (en) | 2015-07-28 | 2015-07-28 | LED light of safety and stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204929332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322149A (en) * | 2016-10-28 | 2017-01-11 | 桂林大创科技有限公司 | Intelligent LED lamp |
| CN108039879A (en) * | 2017-12-28 | 2018-05-15 | 郑州天舜电子技术有限公司 | A kind of intelligent electric power controlling switch circuit |
| CN108055727A (en) * | 2017-12-26 | 2018-05-18 | 海宁市鑫诚电子有限公司 | A kind of LED illuminator based on MBL driving circuits |
-
2015
- 2015-07-28 CN CN201520565318.4U patent/CN204929332U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322149A (en) * | 2016-10-28 | 2017-01-11 | 桂林大创科技有限公司 | Intelligent LED lamp |
| CN108055727A (en) * | 2017-12-26 | 2018-05-18 | 海宁市鑫诚电子有限公司 | A kind of LED illuminator based on MBL driving circuits |
| CN108039879A (en) * | 2017-12-28 | 2018-05-15 | 郑州天舜电子技术有限公司 | A kind of intelligent electric power controlling switch circuit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170728 |