CN204887546U - Touch time delay LED - Google Patents
Touch time delay LED Download PDFInfo
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- CN204887546U CN204887546U CN201520474568.7U CN201520474568U CN204887546U CN 204887546 U CN204887546 U CN 204887546U CN 201520474568 U CN201520474568 U CN 201520474568U CN 204887546 U CN204887546 U CN 204887546U
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- triode
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- diode
- electric capacity
- rectifier bridge
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Abstract
The utility model discloses a touch time delay LED, including electric capacity C1, electrode slice A, triode VT1, rectifier bridge Q, resistance R1 and diode DW, electrode slice A connects triode VT1 base and resistance R1 respectively, electric capacity C1 is connected respectively to the resistance R1 other end, diode DW is anodal, electric capacity C2, electric capacity C3, resistance R4, triode VT4 projecting pole and rectifier bridge Q pin 2, the electric capacity C1 other end is connected respectively to triode VT1 collecting electrode, diode DW negative pole, triode VT2 collecting electrode, triode VT3 collecting electrode, diode D1 and rectifier bridge Q pin 4, triode VT2 base is connected to triode VT1 projecting pole. The utility model discloses touch time delay LED does not adopt any chip element, and does not adopt element controls such as relay, silicon controlled rectifier, and circuit structure is simple, and is with low costs, small, and stability is high, especially adapted using widely.
Description
Technical field
The utility model relates to a kind of LED, specifically a kind of touch time delay LED.
Background technology
Existing touch-control time delay LED adopts NE555 timing chip to design mostly, and adopts relay or controllable silicon as control element, and stand-by power consumption is higher, and poor anti jamming capability, and cost is high.
Utility model content
The purpose of this utility model is that providing a kind of touches time delay LED, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of touch time delay LED, comprises electric capacity C1, electrode slice A, triode VT1, rectifier bridge Q, resistance R1 and diode DW, described electrode slice A respectively connecting triode VT1 base stage and resistance R1, the resistance R1 other end connect electric capacity C1 respectively, diode DW positive pole, electric capacity C2, electric capacity C3, resistance R4, triode VT4 emitter and rectifier bridge Q pin 2, triode VT1 collector electrode connect the electric capacity C1 other end respectively, diode DW negative pole, triode VT2 collector electrode, triode VT3 collector electrode, diode D1 and rectifier bridge Q pin 4, triode VT1 emitter connecting triode VT2 base stage, triode VT2 emitter connects the electric capacity C2 other end and resistance R2 respectively, the resistance R2 other end connects the electric capacity C3 other end and triode VT3 base stage respectively, triode VT3 emitter contact resistance R3, the resistance R3 other end is the contact resistance R4 other end and triode VT4 base stage respectively, triode VT4 collector electrode connects the diode D1 other end, and described rectifier bridge Q pin 1 is connected 220V alternating current two ends respectively with rectifier bridge Q pin 3.
As further program of the utility model: described diode DW is voltage stabilizing didoe.
As the utility model further scheme: described diode D1 is light-emitting diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model touches time delay LED and do not adopt any chip component, and does not adopt the element such as relay, controllable silicon to control, circuit structure is simple, and cost is low, and volume is little, stability is high, is applicable to very much promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram touching time delay LED.
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, in the utility model embodiment, a kind of touch time delay LED, comprises electric capacity C1, electrode slice A, triode VT1, rectifier bridge Q, resistance R1 and diode DW, electrode slice A respectively connecting triode VT1 base stage and resistance R1, the resistance R1 other end connect electric capacity C1 respectively, diode DW positive pole, electric capacity C2, electric capacity C3, resistance R4, triode VT4 emitter and rectifier bridge Q pin 2, triode VT1 collector electrode connect the electric capacity C1 other end respectively, diode DW negative pole, triode VT2 collector electrode, triode VT3 collector electrode, diode D1 and rectifier bridge Q pin 4, triode VT1 emitter connecting triode VT2 base stage, triode VT2 emitter connects the electric capacity C2 other end and resistance R2 respectively, the resistance R2 other end connects the electric capacity C3 other end and triode VT3 base stage respectively, triode VT3 emitter contact resistance R3, the resistance R3 other end is the contact resistance R4 other end and triode VT4 base stage respectively, triode VT4 collector electrode connects the diode D1 other end, and rectifier bridge Q pin 1 is connected 220V alternating current two ends respectively with rectifier bridge Q pin 3.
Diode DW is voltage stabilizing didoe.
Diode D1 is light-emitting diode.
Operation principle of the present utility model is: refer to Fig. 1, when hand touches electrode slice A, be equivalent to make it conducting to VT1 base stage triggering signal, so VI2 also conducting, power supply charges to capacitor C2 through VT2, when charging voltage is enough high, VT2 ends, VT3 conducting, VT4 is conducting thereupon also, light-emitting diode D1 is luminous, illumination, and VT3 cut-off after the electric charge on C2 slowly bleeds off, VT4 also ends makes light-emitting diode D1 extinguish.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (3)
1. touch a time delay LED, comprise electric capacity C1, electrode slice A, triode VT1, rectifier bridge Q, resistance R1 and diode DW, is characterized in that, described electrode slice A respectively connecting triode VT1 base stage and resistance R1, the resistance R1 other end connects electric capacity C1 respectively, diode DW positive pole, electric capacity C2, electric capacity C3, resistance R4, triode VT4 emitter and rectifier bridge Q pin 2, triode VT1 collector electrode connect the electric capacity C1 other end respectively, diode DW negative pole, triode VT2 collector electrode, triode VT3 collector electrode, diode D1 and rectifier bridge Q pin 4, triode VT1 emitter connecting triode VT2 base stage, triode VT2 emitter connects the electric capacity C2 other end and resistance R2 respectively, the resistance R2 other end connects the electric capacity C3 other end and triode VT3 base stage respectively, triode VT3 emitter contact resistance R3, the resistance R3 other end is the contact resistance R4 other end and triode VT4 base stage respectively, triode VT4 collector electrode connects the diode D1 other end, and described rectifier bridge Q pin 1 is connected 220V alternating current two ends respectively with rectifier bridge Q pin 3.
2. touch time delay LED according to claim 1, is characterized in that, described diode DW is voltage stabilizing didoe.
3. touch time delay LED according to claim 1, is characterized in that, described diode D1 is light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520474568.7U CN204887546U (en) | 2015-06-30 | 2015-06-30 | Touch time delay LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520474568.7U CN204887546U (en) | 2015-06-30 | 2015-06-30 | Touch time delay LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204887546U true CN204887546U (en) | 2015-12-16 |
Family
ID=54831863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520474568.7U Expired - Fee Related CN204887546U (en) | 2015-06-30 | 2015-06-30 | Touch time delay LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204887546U (en) |
-
2015
- 2015-06-30 CN CN201520474568.7U patent/CN204887546U/en not_active Expired - Fee Related
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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: 20151216 Termination date: 20160630 |