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 PDF

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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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CN
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
Application number
CN201720561658.9U
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Chinese (zh)
Inventor
吕申
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PULISHENG (XIAMEN) ELECTROMECHANICAL CO Ltd
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PULISHENG (XIAMEN) ELECTROMECHANICAL CO Ltd
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Priority to CN201720561658.9U priority Critical patent/CN207070387U/en
Application granted granted Critical
Publication of CN207070387U publication Critical patent/CN207070387U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor 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

A kind of motorcycle flash device and LED light group control circuit
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.
CN201720561658.9U 2017-05-19 2017-05-19 A kind of motorcycle flash device and LED light group control circuit Expired - Fee Related CN207070387U (en)

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
CN207070387U true CN207070387U (en) 2018-03-02

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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

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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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