CN206426925U - A kind of stable feedback control circuit of LED steering indicating lights - Google Patents
A kind of stable feedback control circuit of LED steering indicating lights Download PDFInfo
- Publication number
- CN206426925U CN206426925U CN201621482997.XU CN201621482997U CN206426925U CN 206426925 U CN206426925 U CN 206426925U CN 201621482997 U CN201621482997 U CN 201621482997U CN 206426925 U CN206426925 U CN 206426925U
- Authority
- CN
- China
- Prior art keywords
- control circuit
- led
- steering indicating
- utility
- feedback control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The utility model discloses a kind of stable feedback control circuit of LED steering indicating lights, it is characterised in that：Described control circuit is linked into triode, a voltage-regulator diode in parallel between the colelctor electrode and transmitting collection of triode after being connected in parallel including several groups of LED.Due to using above-mentioned structure, the utility model failure that feedback is produced due to emitting led damage in time, and accurately judged, the utility model goes to realize from circuit theory design aspect, while will not substantially bring the extra increase of cost.
Description
Technical field
The utility model is related to automobile LED Lighting control field, more particularly to a kind of stable feedback control electricity of LED steering indicating lights
Road.
Background technology
In recent years, although vehicle complete vehicle technology is developed rapidly, but the fault rate of automobile LED steering indicating light is high, it is existing
The problem of having technology can not accurately feed back LED steering indicating lights is the bottleneck problem that each main engine plants all suffer from present.
Found by the analysis to failure part, the unstable feedback of fault rate high heel LED steering indicating lights there are much relations, although raw
Production producer also designs a lot of ways to improve its failure and erroneous judgement problem, also unsatisfactory always, the integrated marketing band to automobile
Carry out bad influence.
In view of the above-mentioned problems, a kind of new control circuit of offer, the event that feedback is produced due to emitting led damage in time
Barrier, and it is the problem of prior art needs solution to carry out accurate judgement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of stable feedback control circuit of LED steering indicating lights, can
The failure that feedback is produced due to emitting led damage in time, and accurately judged.
To reach above-mentioned purpose, the technical solution of the utility model is that a kind of LED steering indicating lights stablize feedback control circuit,
It is characterized in that：Described control circuit is linked into triode, the colelctor electrode and hair of triode after being connected in parallel including several groups of LED
Penetrate a voltage-regulator diode in parallel between collection.
Every group of described LED connect two resistance in parallel to ground.
The resistance of described parallel resistance is 500 Ω.
A kind of stable feedback control circuit of LED steering indicating lights, due to using above-mentioned structure, the utility model in time feedback by
The failure produced in emitting led damage, and accurately judged, he the utility model goes to realize from circuit theory design aspect,
It will not substantially bring the extra increase of cost simultaneously.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description；
Fig. 1 is a kind of structural representation of the stable feedback control circuit of LED steering indicating lights of the utility model.
Embodiment
The problem of the utility model is solved is the defect of the unstable feedback control of automobile LED steering indicating light, and the utility model can
To go to realize from circuit theory design aspect, while will not substantially bring the extra increase of cost.
Specifically as shown in figure 1, the utility model is linked into triode, the collection of triode after being connected in parallel including several groups of LED
A voltage-regulator diode in parallel between electrode and transmitting collection.Every group of LED connect two resistance in parallel to ground.Parallel resistance
Resistance is 500 Ω.
The utility model application design is simple, first by according to the schematic diagram shown in diagram, and several groups emitting led are connected in parallel on
Together, every group it is emitting led it is upper series connection 2 500 Ω resistance in parallel to.Make building one according to schematic diagram as depicted
With the feedback circuit of triode.Note, a voltage-regulator diode in parallel between colelctor electrode and transmitting collection, when the current collection of triode
When pole and too high transmitting collection pressure drop, protective effect is produced.When three groups of emitting led normal works, 15PIN feedback voltage is 0V
(that is, produce low level), when three groups it is emitting led it is any burn out all the way break down when, 15PIN feedback voltage be 10V (i.e.,
Produce high level).So as to be the accurate failure judgement of single-chip microcomputer decision circuitry, and it is double to produce corresponding action output steering indicating light
Dodge.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model implement not by
The limitation of aforesaid way, if the various improvement of technical solutions of the utility model progress are employed, or not improved directly application
In other occasions, within protection domain of the present utility model.
Claims (3)
1. a kind of stable feedback control circuit of LED steering indicating lights, it is characterised in that：It is in parallel that described control circuit includes several groups of LED
Triode, a voltage-regulator diode in parallel between the colelctor electrode and transmitting collection of triode are linked into after connecting.
2. the stable feedback control circuit of a kind of LED steering indicating lights according to claim 1, it is characterised in that：Described every group
LED connect two resistance in parallel to ground.
3. the stable feedback control circuit of a kind of LED steering indicating lights according to claim 2, it is characterised in that：Described parallel connection
The resistance of resistance is 500 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482997.XU CN206426925U (en) | 2016-12-30 | 2016-12-30 | A kind of stable feedback control circuit of LED steering indicating lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482997.XU CN206426925U (en) | 2016-12-30 | 2016-12-30 | A kind of stable feedback control circuit of LED steering indicating lights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206426925U true CN206426925U (en) | 2017-08-22 |
Family
ID=59585665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621482997.XU Expired - Fee Related CN206426925U (en) | 2016-12-30 | 2016-12-30 | A kind of stable feedback control circuit of LED steering indicating lights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206426925U (en) |
-
2016
- 2016-12-30 CN CN201621482997.XU patent/CN206426925U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20181230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |