CN207070387U - A kind of motorcycle flash device and LED light group control circuit - Google Patents
A kind of motorcycle flash device and LED light group control circuit Download PDFInfo
- Publication number
- CN207070387U CN207070387U CN201720561658.9U CN201720561658U CN207070387U CN 207070387 U CN207070387 U CN 207070387U CN 201720561658 U CN201720561658 U CN 201720561658U CN 207070387 U CN207070387 U CN 207070387U
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- China
- Prior art keywords
- control circuit
- constant
- poles
- npn triode
- lamp
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- 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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Classifications
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The utility model discloses a kind of motorcycle flash device and LED light group control circuit, including left steering lamp control module and right turn lamp control module, left steering control module and right turn control module respectively include a constant current resistance and a back lamp control circuit, preceding lamp control circuit includes signal input unit with back lamp control circuit, transistor switching circuit, constant-current source circuit and output feedback unit, signal input unit connects CPU pin, transistor circuit includes the first NPN triode, the B poles connection signal input unit of first NPN triode, E poles connect constant-current source circuit input, C poles connect left steering lamp or right turn lamp;The constant-current source circuit output end connection output feedback unit input, the AD collection terminals of the output feedback unit output termination CPU.The utility model can simplified control circuit structure, reduce its cost.
Description
Technical field
The utility model is related to motorcycle instrument field, the motorcycle flash device that is integrated in more particularly to a kind of instrument and
LED control circuit.
Background technology
Motorcycle left steering lamp and right turn lamp are respectively used to indicate motorcycle direction information, and wherein left steering lamp is in Chinese herbaceous peony
With each one after car, for right turn lamp also each one after Chinese herbaceous peony and car, the switch of left and right turn signal typically has flasher control,
At this stage, increasing motorcycle moves towards intelligent, and digital instrument panel has been popularized, and future will turn into standard configuration.And work as
Flasher on preceding motorcycle is also hung over outside vehicle, with the popularization of LED car lamp, in each LED car lamp due to historical reasons
It is required to a constant-current controller(Car light at least as 4 groups on general whole motorcycle).
There is the problem of cost is higher in the flasher and car light controller of in the market, wherein flasher is to be used to control
To or right turn LED flicker, when pole changer is opened, corresponding LED can flash, so as to make remind, flasher
Chip is inside also required to realize flashing function;Motorcycle flash device mainly by the on-off circuit of a triode, capacitor and after
Electrical equipment is formed, and the CPU in instrument board exports low and high level to the on-off circuit of flasher, by circuit device, relay
The stabling current of needs is exported to left and right turn signal after device and realizes control process;But existing flasher control circuit is more multiple
Miscellaneous, structure is more and cost is high.Meanwhile during certain group car light damage, it is also necessary to realize the double requirement of flicker frequency, the factory of flasher
About 6 yuan of cost of family, about 10 yuan when being sold to OEM factories, it is higher to be sold to market at prices;And LED light group constant-current controller into
Originally at least 2.5 yuan of * 4 group=10 yuan are also required to, only consideration producer cost, this two just up to 16 yuan or so.
In view of this, the present inventor's especial manufacture goes out the lower motorcycle flash device of cost in one and LED light group control electricity
Thus road, this case produce.
Utility model content
The purpose of this utility model is to disclose a kind of motorcycle flash device and LED light group control circuit, with simplify control
Circuit structure, reduce its cost.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of motorcycle flash device and LED light group control circuit, including left steering lamp control module and the control of right turn lamp
Lamp control circuit and a back lamp control circuit before module, left steering control module and right turn control module respectively include one, it is described
Preceding lamp control circuit includes signal input unit, transistor switching circuit, constant-current source circuit and output with back lamp control circuit
Feedback unit, signal input unit input termination CPU pin, transistor switching circuit include the first NPN triode, and described the
The B poles connection signal input unit output end of one NPN triode, E poles connection constant-current source circuit input, C poles connection left steering
Lamp or right turn lamp;The constant-current source circuit output end connection output feedback unit input, the output feedback unit output
Terminate CPU AD collection terminals.
The constant-current source circuit includes the first diode, the second diode, constant current resistance and the second NPN triode, described
The E poles of first NPN triode connect the B poles of the first diode input and the second NPN triode, the E poles of the second NPN triode
Connection output feedback unit input, C poles connection left steering lamp or right turn lamp, the first diode output connect the two or two pole
Pipe input, the second diode output ground connection, the constant current resistance one terminate the second NPN triode E poles, and constant current resistance is another
End ground connection.
The beneficial effects of the utility model are:The utility model is simple in construction, is fed back by 4 groups of constant-current source circuits and output
Unit realizes electric current constant output, has and gathers the fed power supplies of control circuit output voltage to CPU, realizes the inspection of failure
Survey, CPU can be according to the high ground level of its output of the Voltage Technique and control of feedback, so as to accurately control the flicker of steering indicating light.
The utility model is described further below in conjunction with the drawings and specific embodiments.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model.
Label declaration
Left steering lamp control module 1, right turn lamp control module 2, preceding lamp control circuit 3,5, back lamp control circuit 4,6,
Signal input unit 7, transistor switching circuit 8, constant-current source circuit 9, the first diode 91, the second diode 92, constant current resistance
93, the second NPN triode 94, feedback unit 10 is exported,.
Embodiment
As shown in figure 1, a kind of motorcycle flash device and LED light group control circuit that the utility model discloses, including turn left
To lamp control module 1 and right turn lamp control module 2, left steering control module 1 includes the back light of lamp control circuit 3 and one before a perseverance
Control circuit 4, the back lamp control circuit 6 of lamp control circuit 5 and one before right turn control module 2 includes one, preceding lamp control circuit 3,5
Include signal input unit 7, transistor switching circuit 8, constant-current source circuit 9 and output feedback with back lamp control circuit 4,6
Member 10, the input termination of signal input unit 7 CPU11 pin, transistor switching circuit 8 include the first NPN triode 81, and first
B poles connection signal input unit 7 output end of NPN triode 81, E poles connection constant-current source circuit 9 input, the connection of C poles are turned left
To lamp or right turn lamp;The output end of the constant-current source circuit 9 connection output input of feedback unit 10, exports the output end of feedback unit 10
Connect CPU AD collection terminals.
Constant-current source circuit 9 includes the first diode 91, the second diode 92, the NPN triode 94 of constant current resistance 93 and second,
The E poles connection input of the first diode 91 of first NPN triode 81 and the B poles of the second NPN triode 94, the 2nd NPN
The E poles connection output feedback unit input 10 of triode 94, C poles connect left steering lamp or right turn lamp, the first diode are defeated
Go out the connection of end 91 input of second diode 92, the output head grounding of the second diode 92, the termination of constant current resistance 93 1 second
NPN triode 92E poles, the other end of constant current resistance 93 ground connection.
Utility model works process is as follows:
First, the motorcycle of the utility model application has digital instrument panel, and one has been contained in digital meter panel
Individual CPU, the CPU can realize that the flicker frequency to exterior vehicle lights group controls by calculating, simultaneously as there is stabilization in instrument
+ 5V voltages, while there is AD(Detection of the analog voltage to digital value)Function, originally it is that utility model is then easy using one group
Constant-current source circuit, the constant-current source circuit of 4 street lamp groups can be fully integrated into table, be specifically:
If Fig. 1 is when needing to light left-hand rotation lamp, CPU pins(CPU_ turns left)+ 5V voltages are exported, then drive first
NPN triode 81, the second NPN triode 94, the first diode 91 and the second diode 92 light left steering lamp A(LIGHT
A)And B(LIGHT B);Turn right similarly.
Need exist for introducing by the first diode 91, the second diode 92,94 groups of 93 and second NPN triode of constant current resistance
Into constant-current source circuit 9 because the second NPN triode 94 is used as NPN triode, there is two poles between its B pole and E poles
Pipe, its voltage remain 0.7V or so, after the pressure that is powered, due to the first diode 91, the second diode 92 and two two
Pole pipe, therefore the B pole tensions of the second NPN triode 94 remain the pressure drop of 2 diodes, i.e. 1.4V;And the second NPN triode
Pressure drop between 94 B and E poles is 0.7V, therefore the voltage at R94 both ends is locked in 0.7V or so substantially, when constant current resistance 93
Select for 3 Europe when, constant current is 235mA or so.
When 2 groups of LEDs of left-hand rotation lamp normally light, the constant current resistance of preceding lamp control circuit 3 and back lamp control circuit 4
Terminal voltage about 0.7V on 93, then CPU pins(Left-hand rotation feeds back to CPU_AD collections)Voltage is 0.7V;If 1 group of LED is damaged
It is bad, such as LIGHT B are damaged, then the voltage of the upper end of constant current resistance 93 is 0, then CPU pins(Left-hand rotation feeds back to CPU_AD and adopted
Collection)Voltage be 0.7V/2=0.35V;CPU can learn that there is LED light group damage outside by AD collections, by calculating, will glisten
Frequency is double, and to remind user to have the damage of lamp group, while the liquid crystal display on instrument board can also come out the malfunction coefficient, make
User can more intuitively view fault message.
Specific embodiment of the utility model is these are only, not to the restriction of the scope of protection of the utility model.It is all according to
The equivalent variations that the mentality of designing of this case is done, each fall within the protection domain of this case.
Claims (2)
1. a kind of motorcycle flash device and LED light group control circuit, it is characterised in that:Including left steering lamp control module and right-hand rotation
To lamp control module, lamp control circuit and back light control electricity before left steering control module and right turn control module respectively include one
Road, the preceding lamp control circuit include signal input unit, transistor switching circuit, constant-current source circuit with back lamp control circuit
With output feedback unit, signal input unit input termination CPU pin, transistor switching circuit includes the first NPN triode,
The B poles connection signal input unit output end of first NPN triode, E poles connection constant-current source circuit input, the connection of C poles
Left steering lamp or right turn lamp;The constant-current source circuit output end connection output feedback unit input, the output feedback
Member output termination CPU AD collection terminals.
2. a kind of motorcycle flash device as claimed in claim 1 and LED light group control circuit, it is characterised in that:The constant current
Source circuit includes the first diode, the second diode, constant current resistance and the second NPN triode, the E of first NPN triode
Pole connects the B poles of the first diode input and the second NPN triode, the E poles connection output feedback unit of the second NPN triode
Input, C poles connection left steering lamp or right turn lamp, the first diode output the second diode input of connection, the two or two
Pole pipe output head grounding, the constant current resistance one terminate the second NPN triode E poles, constant current resistance other end ground connection.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720561658.9U CN207070387U (en) | 2017-05-19 | 2017-05-19 | A kind of motorcycle flash device and LED light group control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720561658.9U CN207070387U (en) | 2017-05-19 | 2017-05-19 | A kind of motorcycle flash device and LED light group control circuit |
Publications (1)
Publication Number | Publication Date |
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CN207070387U true CN207070387U (en) | 2018-03-02 |
Family
ID=61505980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201720561658.9U Expired - Fee Related CN207070387U (en) | 2017-05-19 | 2017-05-19 | A kind of motorcycle flash device and LED light group control circuit |
Country Status (1)
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CN (1) | CN207070387U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111642047A (en) * | 2020-05-28 | 2020-09-08 | 东风柳州汽车有限公司 | Flash control circuit based on MOS tube and flasher |
-
2017
- 2017-05-19 CN CN201720561658.9U patent/CN207070387U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111642047A (en) * | 2020-05-28 | 2020-09-08 | 东风柳州汽车有限公司 | Flash control circuit based on MOS tube and flasher |
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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: 20180302 Termination date: 20200519 |
|
CF01 | Termination of patent right due to non-payment of annual fee |