CN204856274U - Infrared LED drive circuit - Google Patents
Infrared LED drive circuit Download PDFInfo
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- CN204856274U CN204856274U CN201520606155.XU CN201520606155U CN204856274U CN 204856274 U CN204856274 U CN 204856274U CN 201520606155 U CN201520606155 U CN 201520606155U CN 204856274 U CN204856274 U CN 204856274U
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Abstract
The utility model discloses an infrared LED drive circuit, including chip U1, electric capacity C1, resistance R1, key switch S1, infrared emitting diode LED1, diode D1 and group battery E, electric capacity C1 and key switch S1 are connected respectively to group battery E positive pole, key switch S1 other end connecting resistance R1, electric capacity C2 is connected respectively to the resistance R1 other end, electric capacity C3, diode D1 negative pole, chip U1 pin 14, grounded capacitance C5 and resistance R3, it is anodal that infrared emitting diode LED1 is connected to the resistance R3 other end, triode VT1 collecting electrode is connected to the infrared emitting diode LED1 negative pole, triode VT1 base is passed through resistance R4 and is connected chip U1 pin 6. The utility model discloses infrared LED drive circuit circuit structure is simple, and is with low costs, only need press key switch S1 and can make LED1 send the infrared light of certain frequency, cooperates the controlgear switch that outside receiving circuit can be fine.
Description
Technical field
The utility model relates to a kind of LED, specifically a kind of infrared LED driving circuit.
Background technology
Infrared LED, as short-range remote control means, is loved by the people, such as the telepilot such as TV is all adopt infrared LED to control, but these are all practical functions, and more manipulation just can be used, need coding, cost is higher, the inapplicable occasion with only needing simple switch control rule.
Utility model content
The purpose of this utility model is to provide a kind of infrared LED driving circuit, 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 infrared LED driving circuit, comprises chip U1, electric capacity C1, resistance R1, keyswitch S1, infrared-emitting diode LED1, diode D1 and electric battery E, described electric battery E positive pole connects electric capacity C1 and keyswitch S1 respectively, keyswitch S1 other end contact resistance R1, and the resistance R1 other end connects electric capacity C2 respectively, electric capacity C3, diode D1 negative pole, chip U1 pin 14, direct earth capacitance C5 and resistance R3, the resistance R3 other end connects infrared-emitting diode LED1 positive pole, infrared-emitting diode LED1 negative pole connecting triode VT1 collector, triode VT1 base stage connects chip U1 pin 6, triode VT1 emitter by resistance R4 and connects chip U1 pin 7 respectively, electric capacity C4, diode D1 positive pole, the electric capacity C1 other end, the electric capacity C3 other end, the electric capacity C2 other end and electric battery E negative pole, chip U1 pin 4 connects chip U1 pin 5 respectively, chip U1 pin 3 and resistance R2, the resistance R2 other end connects chip U1 pin 1 respectively, chip U1 pin 2 and the electric capacity C4 other end, described chip U1 model is 74HC132.
As further program of the utility model: described electric battery E voltage is 6V.
As the utility model further scheme: described diode D1 is voltage stabilizing diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model infrared LED driving circuit circuit structure is simple, cost is low, and the switch S 1 that only need push button can make LED1 send the infrared light of certain frequency, coordinates external reception circuit to get final product good opertaing device switch.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of infrared LED driving circuit.
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 infrared LED driving circuit, comprises chip U1, electric capacity C1, resistance R1, keyswitch S1, infrared-emitting diode LED1, diode D1 and electric battery E, electric battery E positive pole connects electric capacity C1 and keyswitch S1 respectively, keyswitch S1 other end contact resistance R1, and the resistance R1 other end connects electric capacity C2 respectively, electric capacity C3, diode D1 negative pole, chip U1 pin 14, direct earth capacitance C5 and resistance R3, the resistance R3 other end connects infrared-emitting diode LED1 positive pole, infrared-emitting diode LED1 negative pole connecting triode VT1 collector, triode VT1 base stage connects chip U1 pin 6, triode VT1 emitter by resistance R4 and connects chip U1 pin 7 respectively, electric capacity C4, diode D1 positive pole, the electric capacity C1 other end, the electric capacity C3 other end, the electric capacity C2 other end and electric battery E negative pole, chip U1 pin 4 connects chip U1 pin 5 respectively, chip U1 pin 3 and resistance R2, the resistance R2 other end connects chip U1 pin 1 respectively, chip U1 pin 2 and the electric capacity C4 other end, described chip U1 model is 74HC132.
Electric battery E voltage is 6V.
Diode D1 is voltage stabilizing diode.
Principle of work of the present utility model is: refer to Fig. 1, the utility model circuit 6V powered battery, use two pieces of CR2032 lithium button cells, S1 is trigger switch, R1 and voltage stabilizing diode D1 forms traditional shunt regulating circuit, and R3 limits the working current of pilot lamp LED1.
Chip U1 is four Sheffer stroke gate Schmidt trigger chip 74HC132, here wherein two door triggers are only employed, (1,2 pin enter first door trigger, 3 pin go out) be 1OkHz oscillator, oscillation frequency is determined by timing element R2 and C4, (4,5 pin enter second door trigger, 6 pin go out) as impact damper, triode VT1 is the drive amplification level of infrared light emitting diode LED1, R5 restriction flows through the electric current of LED1, and LED1 can adopt the infrared light emitting diode that any one is general.
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 instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. an infrared LED driving circuit, comprises chip U1, electric capacity C1, resistance R1, keyswitch S1, infrared-emitting diode LED1, diode D1 and electric battery E, is characterized in that, described electric battery E positive pole connects electric capacity C1 and keyswitch S1 respectively, keyswitch S1 other end contact resistance R1, and the resistance R1 other end connects electric capacity C2 respectively, electric capacity C3, diode D1 negative pole, chip U1 pin 14, direct earth capacitance C5 and resistance R3, the resistance R3 other end connects infrared-emitting diode LED1 positive pole, infrared-emitting diode LED1 negative pole connecting triode VT1 collector, triode VT1 base stage connects chip U1 pin 6, triode VT1 emitter by resistance R4 and connects chip U1 pin 7 respectively, electric capacity C4, diode D1 positive pole, the electric capacity C1 other end, the electric capacity C3 other end, the electric capacity C2 other end and electric battery E negative pole, chip U1 pin 4 connects chip U1 pin 5 respectively, chip U1 pin 3 and resistance R2, the resistance R2 other end connects chip U1 pin 1 respectively, chip U1 pin 2 and the electric capacity C4 other end, described chip U1 model is 74HC132.
2. infrared LED driving circuit according to claim 1, is characterized in that, described electric battery E voltage is 6V.
3. infrared LED driving circuit according to claim 1, is characterized in that, described diode D1 is voltage stabilizing diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520606155.XU CN204856274U (en) | 2015-08-12 | 2015-08-12 | Infrared LED drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520606155.XU CN204856274U (en) | 2015-08-12 | 2015-08-12 | Infrared LED drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204856274U true CN204856274U (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520606155.XU Expired - Fee Related CN204856274U (en) | 2015-08-12 | 2015-08-12 | Infrared LED drive circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204856274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769962A (en) * | 2016-12-06 | 2017-05-31 | 百奥森（江苏）食品安全科技有限公司 | A kind of laboratory operation platform suitable for food inspection |
-
2015
- 2015-08-12 CN CN201520606155.XU patent/CN204856274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769962A (en) * | 2016-12-06 | 2017-05-31 | 百奥森（江苏）食品安全科技有限公司 | A kind of laboratory operation platform suitable for food inspection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151209 Address after: 511430, Guangdong, Panyu District province Dashi street, Guangzhou village, three stone road, No. 168 official pit Industrial Park, A, building 2-4 Patentee after: GUANGZHOU CKC LIGHTING CO., LTD. Address before: 236600 Anhui city of Fuyang Province Taihe County old Miao Ji Zhen Liu Guang Cun Wei Hui Lao Zhai No. 26 1 Patentee before: Liu Lei |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |