CN202931616U - Automobile daytime running lamp module - Google Patents
Automobile daytime running lamp module Download PDFInfo
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- CN202931616U CN202931616U CN201220542997XU CN201220542997U CN202931616U CN 202931616 U CN202931616 U CN 202931616U CN 201220542997X U CN201220542997X U CN 201220542997XU CN 201220542997 U CN201220542997 U CN 201220542997U CN 202931616 U CN202931616 U CN 202931616U
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
An automobile daytime running lamp module comprises a protection circuit, an overvoltage protection and voltage reference circuit, an LED lighting circuit, a fault detection circuit and a current negative feedback constant current driving circuit; wherein the input end of the protection circuit is connected with a power supply, the output end of the protection circuit is respectively connected with the input end of the fault detection circuit and the input end of the overvoltage protection and voltage reference circuit, the fault detection circuit is mutually connected with the current negative feedback constant current driving circuit, the output end of the current negative feedback constant current driving circuit is connected with the LED lighting circuit. Compared with the prior art, the linear constant current driving way is used, the EMI is effectively reduced; the LED is used as the light source, thus the light emitting efficiency is long, the energy is saved and the service life is long, thus the automobile daytime running lamp module corresponds to the applications on which daytime running lamps are needed to be turned on for a long time, thus the other automobiles or bicycles can effectively identify the automobile with the automobile daytime running lamp module, the visibility during the daytime driving is increased, the probability of occurrence of traffic accident is reduced, the driving safety is improved, the energy is saved and the service life is long.
Description
Technical field
The utility model relates to a kind of controller, particularly a kind of automobile portable lighter in daytime module for automobile rearview mirror.
Background technology
Daytime portable lighter (DRL, Daytime Running Light) be a kind of when starting motor-driven vehicle automatic-opening special light fixture, it can improve other road users significantly to the visibility of motor vehicle, and compare very energy-conservationly with the dipped headlights of present use, power consumption is only 25% to 30% of common car light.
The earliest daytime portable lighter to be installed on car be in Europe, because the European Forest coverage rate is higher, in a lot of situations, car travels under tree shade, other vehicles or pedestrians can not be known identification; Open headlamp, because the brightness of headlamp is too bright, holds very much the vehicle of meeting is caused dizzy eye, be easy to cause traffic accident.And make the very fast aged deterioration of light fixture according to front meeting before long-term the unlatching, and power is larger, wastes energy.
In order to increase road safety, European Union has put into effect portable lighter ECER87 rules in daytime, regulation according to these rules, all newly-increased motor vehicles of European Union, comprise as car, lorry and oversize vehicle etc. special-purpose portable lighter in daytime all need be installed, visibility when driving a vehicle in the daytime to increase, the occurrence probability of minimizing traffic accident.
For the domestic market, Audi uses the earliest, popular and logical can wait also just actively daytime portable lighter be assemblied in and improve traffic safety on automobile.Though it is not also a domestic rules part at present, from existing market trend, development prospect is long-range.
In sum, need especially a kind of automobile portable lighter in daytime module, the defects that exists to overcome prior art.
The utility model content
The purpose of this utility model is to provide a kind of automobile portable lighter in daytime module, the defects that exists to overcome prior art, can make effectively identification of other vehicle or driving, increase the visibility when driving a vehicle in the daytime, reduce the occurrence probability of traffic accident, improved the safety of driving, energy-conservation and long service life.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of automobile portable lighter in daytime module is characterized in that it comprises a protective circuit, an overvoltage protection and reference circuits, a LED lighting circuit, a failure detector circuit and a Current Negative Three-Point Capacitance constant-current drive circuit; The input of described protective circuit is connected with power supply; the output of described protective circuit connects respectively the input of described failure detector circuit and the input of described overvoltage protection and reference circuits; described failure detector circuit and described Current Negative Three-Point Capacitance constant-current drive circuit are connected to each other, and the output of described Current Negative Three-Point Capacitance constant-current drive circuit connects described LED lighting circuit.
In an embodiment of the present utility model, described protective circuit comprises connector P1, capacitor C 1, C2, C3, diode D1 and piezo-resistance ZNR1; 2 pin of connector P1 connect respectively an end of capacitor C 1, the end of piezo-resistance ZNR1 and the negative pole of diode D1,1 pin of connector P1 and the other end of capacitor C 1 are connected to each other and ground connection, the other end ground connection of piezo-resistance ZNR1, the positive pole of diode D1 connects respectively the end that an end of capacitor C 2 is connected with capacitor C and connects the VS end, and the other end of the other end of capacitor C 2 and capacitor C 3 is connected to each other also ground connection.
in an embodiment of the present utility model, described overvoltage protection and reference circuits comprise resistance R 1, R2, R3, R8, R9, capacitor C 9, C10, C11, C12, voltage stabilizing didoe Z2, Z3 and triode Q1 and Q5, one end of resistance R 1 connects the VS end, the emitter of the other end connecting triode Q1 of resistance R 1, the collector electrode of triode Q1 is by the end of resistance R 2 difference contact resistance R3, the positive pole of voltage stabilizing didoe Z2, one end of capacitor C 10 and an end of capacitor C 9, the minus earth of voltage stabilizing didoe Z2, the other end of the other end of capacitor C 9 and capacitor C 10 is connected to each other and ground connection, the other end of resistance R 3 connects respectively an end of capacitor C 12, one end of resistance R 9, one end of capacitor C 11 and an end of resistance R 8, the other end of capacitor C 12, the other end of the other end of resistance R 9 and capacitor C 11 is connected to each other and ground connection, the collector electrode of the other end connecting triode Q5 of resistance R 8, the grounded emitter of triode Q5, the base stage of triode Q5 connects the VS end by voltage stabilizing didoe Z3.
in an embodiment of the present utility model, described LED lighting circuit comprises capacitor C 4, C5, C6, light-emitting diode D2, D3, D4, D5, D7, diode D6, D8, D9 and D10, one end of capacitor C 4, the negative pole of light-emitting diode D2, one end of capacitor C 5, the negative pole of light-emitting diode D3, one end of capacitor C 6 is connected negative pole and is connected to each other and connects VS end with light-emitting diode D4, the positive pole of light-emitting diode D2 is connected with the negative pole of light-emitting diode D5, the positive pole of light-emitting diode D5 is connected with the other end of capacitor C 4, the other end of capacitor C 5 is connected with the positive pole of light-emitting diode D3 and the negative pole of diode D6, the positive pole of diode D6 connects diode D8 successively, D9 and D10, the positive pole of light-emitting diode D4 is connected with the negative pole of light-emitting diode D7, the positive pole of light-emitting diode D7 is connected with the other end of capacitor C 6.
In an embodiment of the present utility model, described failure detector circuit comprises resistance R 14, R27, R28, R29, capacitor C 16, C17, triode Q6, the low double diode D11 of leakage and D12; The collector electrode of triode Q6 connects respectively an end of capacitor C 17 and an end of resistance R 29, one end of the emitter of the other end of the other end of resistance R 29, capacitor C 17, triode Q6, resistance R 28 and an end of capacitor C 16 are connected to each other and ground connection, the base stage of triode Q6 is the other end, the other end of capacitor C 16 and the end of resistance R 27 of contact resistance R28 respectively, the other end of resistance R 27 is by low double diode D12 an end and the low double diode D11 that leaks of contact resistance R14 respectively of leaking, and the other end of resistance R 14 connects the VS end.
in an embodiment of the present utility model, described Current Negative Three-Point Capacitance constant-current drive circuit comprises resistance R 4, R5, R6, R7, R11, R12, R13, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, capacitor C 7, C8, C13, C14, C15, triode Q2, Q3, Q4, voltage stabilizing didoe Z1 and chip U1A, one end of capacitor C 7, one end of capacitor C 8, 8 pin of the positive pole of voltage stabilizing didoe Z1 and chip U1A are connected to each other, the other end of the other end of capacitor C 7 and capacitor C 8 is connected to each other and ground connection, the minus earth of voltage stabilizing didoe Z1, the end of the 1 pin difference contact resistance R4 of chip U1A and an end of capacitor C 13, the other end of capacitor C 13 is the end of contact resistance R11 respectively, one end of resistance R 12, one end of resistance R 13, one end of capacitor C 15 and 2 pin of chip U1A, the other end ground connection of capacitor C 15, the other end of resistance R 11 is the end of contact resistance R23 respectively, one end of resistance R 24, one end of resistance R 25, one end of resistance R 26 and the emitter of triode Q4, the other end of resistance R 23, the other end of resistance R 24, the other end of the other end of resistance R 25 and resistance R 26 is connected to each other and ground connection, and the other end of resistance R 12 is the end of contact resistance R19 respectively, one end of resistance R 20, one end of resistance R 21, one end of resistance R 22 and the emitter of triode Q3, the other end of resistance R 19, the other end of resistance R 20, the other end of the other end of resistance R 21 and resistance R 22 is connected to each other and ground connection, and the other end of resistance R 13 is the end of contact resistance R15 respectively, one end of resistance R 16, one end of resistance R 17, one end of resistance R 18 and the emitter of triode Q2, the other end of resistance R 15, the other end of resistance R 16, the other end of the other end of resistance R 17 and resistance R 18 is connected to each other and ground connection, and the other end of resistance R 4 is the end of contact resistance R5 respectively, one end of one end of resistance R 6 and an end of resistance R 7 and capacitor C 14, the other end ground connection of capacitor C 14, the base stage of the other end connecting triode Q2 of resistance R 5, the base stage of the other end connecting triode Q3 of resistance R 6, the base stage of the other end connecting triode Q4 of resistance R 7.
Automobile portable lighter in daytime module of the present utility model has following advantage:
1, adopt linear constant current drive mode, effectively reduce EMI, satisfy automobile to the requirement of EMI harshness; Adopt aluminium base as the PCB substrate, improved the heat dispersion of module; Adopt the design of reflecting light shape, improved light utilization;
2, adopt LED as light source, luminous efficiency is high, can reach 80lm/W, and the module gross power is 8W approximately, and is energy-conservation and the life-span is long, met the application scenario that daytime, portable lighter will be opened for a long time.
Automobile portable lighter in daytime module of the present utility model compared with prior art, adopts linear constant current drive mode, effectively reduce EMI, adopt LED as light source, luminous efficiency is high, energy-conservation and the life-span is long, meet the application scenario that daytime, portable lighter will be opened for a long time, made effectively identification of other vehicle or driving, increased the visibility when driving a vehicle in the daytime, reduce the occurrence probability of traffic accident, improved the safety of driving, energy-conservation and long service life realizes the purpose of this utility model.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better execution mode of this case and be obtained to be well understood to.
Description of drawings
Fig. 1 is the structured flowchart of automobile portable lighter in daytime module of the present utility model;
Fig. 2 is the circuit theory diagrams of automobile portable lighter in daytime module of the present utility model.
Embodiment
In order to make technological means of the present utility model, creation characteristic, to reach purpose and effect is easy to understand, below in conjunction with specific embodiment, further set forth the utility model.
As shown in Figure 1, automobile portable lighter in daytime module of the present utility model, it comprises a protective circuit 100, an overvoltage protection and reference circuits 200, a LED lighting circuit 300, a failure detector circuit 400 and a Current Negative Three-Point Capacitance constant-current drive circuit 500.
Protective circuit 100 connects the input with power supply, and it has inhibitory action to high-voltage pulse and the static of power end input, and simultaneously, diode D1 is series on power line, and the input error-polarity connection is shielded; The power line of overvoltage protection and reference circuits 200 is connected on main power line, 1 input line is connected with failure detector circuit 400, the overvoltage input line is connected on power line, and the Voltage Reference input port of voltage reference output and Current Negative Three-Point Capacitance constant-current drive circuit 500 is connected; 3 input lines of failure detector circuit 400 are connected on 3 road current sense resistors of Current Negative Three-Point Capacitance constant-current drive circuit 500; whether 1 tunnel output is connected on overvoltage protection and reference circuits 200 and enables for controlling reference circuits; the voltage input of Current Negative Three-Point Capacitance constant-current drive circuit 500 is with reference to being connected on the voltage output of overvoltage protection and reference circuits 200, and 3 road output lines are exported three paths of LEDs of driving LED lighting circuits 300.
As shown in Figure 2, described protective circuit 100 comprises connector P1, capacitor C 1, C2, C3, diode D1 and piezo-resistance ZNR1; 2 pin of connector P1 connect respectively an end of capacitor C 1, the end of piezo-resistance ZNR1 and the negative pole of diode D1,1 pin of connector P1 and the other end of capacitor C 1 are connected to each other and ground connection, the other end ground connection of piezo-resistance ZNR1, the positive pole of diode D1 connects respectively the end that an end of capacitor C 2 is connected with capacitor C and connects the VS end, and the other end of the other end of capacitor C 2 and capacitor C 3 is connected to each other also ground connection.
ZNR1 is a piezo-resistance, can the pulse signal suppressing, protect the circuit of rear end to avoid the pulse signal impact failure when input has high-voltage pulse; D1 is a rectifier diode, when input both positive and negative polarity error-polarity connection, input obstructedly, protects the back electronic device can not damage because of the circuit reversal connection; Capacitor C 1 is that protection absorbs the static of human body when insertion connector, protects the device of rear end; C2, C3 are two filter capacitors, the interference signal of filtering input.
described overvoltage protection and reference circuits 200 comprise resistance R 1, R2, R3, R8, R9, capacitor C 9, C10, C11, C12, voltage stabilizing didoe Z2, Z3 and triode Q1 and Q5, one end of resistance R 1 connects the VS end, the emitter of the other end connecting triode Q1 of resistance R 1, the collector electrode of triode Q1 is by the end of resistance R 2 difference contact resistance R3, the positive pole of voltage stabilizing didoe Z2, one end of capacitor C 10 and an end of capacitor C 9, the minus earth of voltage stabilizing didoe Z2, the other end of the other end of capacitor C 9 and capacitor C 10 is connected to each other and ground connection, the other end of resistance R 3 connects respectively an end of capacitor C 12, one end of resistance R 9, one end of capacitor C 11 and an end of resistance R 8, the other end of capacitor C 12, the other end of the other end of resistance R 9 and capacitor C 11 is connected to each other and ground connection, the collector electrode of the other end connecting triode Q5 of resistance R 8, the grounded emitter of triode Q5, the base stage of triode Q5 connects the VS end by voltage stabilizing didoe Z3.
On the voltage stabilizing value of voltage-stabiliser tube, resistance R 3 and R9 consist of a resistor voltage divider circuit to voltage-stabiliser tube Z2 the voltage stabilization of resistance R 2 and R3 tie point, and voltage U=R9*Uz2/(R3+R9), this voltage is as the reference voltage level of Current Negative Three-Point Capacitance constant-current drive circuit 500.Voltage-stabiliser tube Z3 and triode Q5 are overvoltage crowbar; when input voltage surpasses the voltage stabilizing value of voltage-stabiliser tube Z3; voltage-stabiliser tube Z3 conducting; at this moment triode Q5 will work in the saturation region; triode Q5 conducting, this moment reference voltage level U=R9//R8*Uz2/ (R9//R8+R3), visible U value can diminish; the current value of Current Negative Three-Point Capacitance constant-current drive circuit 500 also can diminish like this, plays a protective role.
described LED lighting circuit 300 comprises capacitor C 4, C5, C6, light-emitting diode D2, D3, D4, D5, D7, diode D6, D8, D9 and D10, one end of capacitor C 4, the negative pole of light-emitting diode D2, one end of capacitor C 5, the negative pole of light-emitting diode D3, one end of capacitor C 6 is connected negative pole and is connected to each other and connects VS end with light-emitting diode D4, the positive pole of light-emitting diode D2 is connected with the negative pole of light-emitting diode D5, the positive pole of light-emitting diode D5 is connected with the other end of capacitor C 4, the other end of capacitor C 5 is connected with the positive pole of light-emitting diode D3 and the negative pole of diode D6, the positive pole of diode D6 connects diode D8 successively, D9 and D10, the positive pole of light-emitting diode D4 is connected with the negative pole of light-emitting diode D7, the positive pole of light-emitting diode D7 is connected with the other end of capacitor C 6.
Described failure detector circuit 400 comprises resistance R 14, R27, R28, R29, capacitor C 16, C17, triode Q6, the low double diode D11 of leakage and D12; The collector electrode of triode Q6 connects respectively an end of capacitor C 17 and an end of resistance R 29, one end of the emitter of the other end of the other end of resistance R 29, capacitor C 17, triode Q6, resistance R 28 and an end of capacitor C 16 are connected to each other and ground connection, the base stage of triode Q6 is the other end, the other end of capacitor C 16 and the end of resistance R 27 of contact resistance R28 respectively, the other end of resistance R 27 is by low double diode D12 an end and the low double diode D11 that leaks of contact resistance R14 respectively of leaking, and the other end of resistance R 14 connects the VS end.
When initially powering on, capacitor C 17 chargings, charging process triode Q1 conducting, conducting after-current negative feedback constant-current drive circuit 500 can obtain reference voltage, then Current Negative Three-Point Capacitance constant-current drive circuit 500 driving LED lighting circuit 300 conductings have certain voltage on three road feedback resistances of Current Negative Three-Point Capacitance constant-current drive circuit 500 at this moment; Due to D11, D12, R14 forms one three tunnel input, one tunnel output with door, at this moment three tunnel inputs have voltage (high level), one tunnel output is also high level, to drive triode Q6 conducting, will drive triode Q1 conducting always after triode Q6 conducting, LED is sustainable like this lights.If LED lighting circuit one road or more than one tunnel damage of opening circuit; voltage on the negative feedback resistor of Current Negative Three-Point Capacitance constant-current drive circuit 500 that should correspondence is 0; namely with Men Yilu or the above 0(low level that is input as); be output as low level, triode Q6 cut-off, triode Q1 is not driven like this; it also will end; the output voltage of overvoltage protection and reference circuits 200 is 0, and the drive current of Current Negative Three-Point Capacitance constant-current drive circuit 500 also will go out entirely for 0, LED.Like this, outside BCM can diagnose this electric current, reports to the police to vehicle body.
described Current Negative Three-Point Capacitance constant-current drive circuit 500 comprises resistance R 4, R5, R6, R7, R11, R12, R13, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, capacitor C 7, C8, C13, C14, C15, triode Q2, Q3, Q4, voltage stabilizing didoe Z1 and chip U1A, one end of capacitor C 7, one end of capacitor C 8, 8 pin of the positive pole of voltage stabilizing didoe Z1 and chip U1A are connected to each other, the other end of the other end of capacitor C 7 and capacitor C 8 is connected to each other and ground connection, the minus earth of voltage stabilizing didoe Z1, the end of the 1 pin difference contact resistance R4 of chip U1A and an end of capacitor C 13, the other end of capacitor C 13 is the end of contact resistance R11 respectively, one end of resistance R 12, one end of resistance R 13, one end of capacitor C 15 and 2 pin of chip U1A, the other end ground connection of capacitor C 15, the other end of resistance R 11 is the end of contact resistance R23 respectively, one end of resistance R 24, one end of resistance R 25, one end of resistance R 26 and the emitter of triode Q4, the other end of resistance R 23, the other end of resistance R 24, the other end of the other end of resistance R 25 and resistance R 26 is connected to each other and ground connection, and the other end of resistance R 12 is the end of contact resistance R19 respectively, one end of resistance R 20, one end of resistance R 21, one end of resistance R 22 and the emitter of triode Q3, the other end of resistance R 19, the other end of resistance R 20, the other end of the other end of resistance R 21 and resistance R 22 is connected to each other and ground connection, and the other end of resistance R 13 is the end of contact resistance R15 respectively, one end of resistance R 16, one end of resistance R 17, one end of resistance R 18 and the emitter of triode Q2, the other end of resistance R 15, the other end of resistance R 16, the other end of the other end of resistance R 17 and resistance R 18 is connected to each other and ground connection, and the other end of resistance R 4 is the end of contact resistance R5 respectively, one end of one end of resistance R 6 and an end of resistance R 7 and capacitor C 14, the other end ground connection of capacitor C 14, the base stage of the other end connecting triode Q2 of resistance R 5, the base stage of the other end connecting triode Q3 of resistance R 6, the base stage of the other end connecting triode Q4 of resistance R 7.
U1A is an operational amplifier, when IN+ inputs higher than IN-, be output as high level, drive three road triode conductings, so according on Ohm's law current feedback resistance, voltage being arranged, the IN-that is input to operational amplifier after current flowing resistance R11, the R12 that this voltage forms and R13 improves IN-voltage, according to the operation principle of operational amplifier, the voltage of IN-will rise to consistent with IN+ voltage, just makes its output balance, form Current Negative Three-Point Capacitance, export constant current drives LED.
automobile portable lighter in daytime module of the present utility model, during work, when initially powering on, capacitor C 17 chargings, charging process triode Q1 conducting, conducting after-current negative feedback constant-current drive circuit 500 can obtain reference voltage, then Current Negative Three-Point Capacitance constant-current drive circuit 500 driving LED lighting circuit 300 conductings, on three road feedback resistances of Current Negative Three-Point Capacitance constant-current drive circuit 500, certain voltage is arranged at this moment, U1A is an operational amplifier, when IN+ inputs higher than IN-, be output as high level, drive three road triode conductings, so according on Ohm's law current feedback resistance, voltage being arranged, the current flowing resistance R11 that this voltage forms, the IN-that is input to operational amplifier after R12 and R13 improves IN-voltage, operation principle according to operational amplifier, the voltage of IN-will rise to consistent with IN+ voltage, just make its output balance, form Current Negative Three-Point Capacitance, export constant current drives LED.
Due to D11, D12, R14 forms one three tunnel input, one tunnel output with door, at this moment three tunnel inputs have voltage (high level), one tunnel output is also high level, to drive triode Q6 conducting, will drive triode Q1 conducting always after triode Q6 conducting, LED is sustainable like this lights.If LED lighting circuit one road or more than one tunnel damage of opening circuit; voltage on the negative feedback resistor of Current Negative Three-Point Capacitance constant-current drive circuit 500 that should correspondence is 0; namely with Men Yilu or the above 0(low level that is input as); be output as low level, triode Q6 cut-off, triode Q1 is not driven like this; it also will end; the output voltage of overvoltage protection and reference circuits 200 is 0, and the drive current of Current Negative Three-Point Capacitance constant-current drive circuit 500 also will go out entirely for 0, LED.Like this, outside BCM can diagnose this electric current, reports to the police to vehicle body.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. automobile portable lighter in a daytime module, is characterized in that, it comprises a protective circuit, an overvoltage protection and reference circuits, a LED lighting circuit, a failure detector circuit and a Current Negative Three-Point Capacitance constant-current drive circuit; The input of described protective circuit is connected with power supply; the output of described protective circuit connects respectively the input of described failure detector circuit and the input of described overvoltage protection and reference circuits; described failure detector circuit and described Current Negative Three-Point Capacitance constant-current drive circuit are connected to each other, and the output of described Current Negative Three-Point Capacitance constant-current drive circuit connects described LED lighting circuit.
2. automobile portable lighter in daytime module according to claim 1, is characterized in that, described protective circuit comprises connector P1, capacitor C 1, C2, C3, diode D1 and piezo-resistance ZNR1; 2 pin of connector P1 connect respectively an end of capacitor C 1, the end of piezo-resistance ZNR1 and the negative pole of diode D1,1 pin of connector P1 and the other end of capacitor C 1 are connected to each other and ground connection, the other end ground connection of piezo-resistance ZNR1, the positive pole of diode D1 connects respectively the end that an end of capacitor C 2 is connected with capacitor C and connects the VS end, and the other end of the other end of capacitor C 2 and capacitor C 3 is connected to each other also ground connection.
3. automobile portable lighter in daytime module according to claim 1, is characterized in that, described overvoltage protection and reference circuits comprise resistance R 1, R2, R3, R8, R9, capacitor C 9, C10, C11, C12, voltage stabilizing didoe Z2, Z3 and triode Q1 and Q5, one end of resistance R 1 connects the VS end, the emitter of the other end connecting triode Q1 of resistance R 1, the collector electrode of triode Q1 is by the end of resistance R 2 difference contact resistance R3, the positive pole of voltage stabilizing didoe Z2, one end of capacitor C 10 and an end of capacitor C 9, the minus earth of voltage stabilizing didoe Z2, the other end of the other end of capacitor C 9 and capacitor C 10 is connected to each other and ground connection, the other end of resistance R 3 connects respectively an end of capacitor C 12, one end of resistance R 9, one end of capacitor C 11 and an end of resistance R 8, the other end of capacitor C 12, the other end of the other end of resistance R 9 and capacitor C 11 is connected to each other and ground connection, the collector electrode of the other end connecting triode Q5 of resistance R 8, the grounded emitter of triode Q5, the base stage of triode Q5 connects the VS end by voltage stabilizing didoe Z3.
4. automobile portable lighter in daytime module according to claim 1, is characterized in that, described LED lighting circuit comprises capacitor C 4, C5, C6, light-emitting diode D2, D3, D4, D5, D7, diode D6, D8, D9 and D10, one end of capacitor C 4, the negative pole of light-emitting diode D2, one end of capacitor C 5, the negative pole of light-emitting diode D3, one end of capacitor C 6 is connected negative pole and is connected to each other and connects VS end with light-emitting diode D4, the positive pole of light-emitting diode D2 is connected with the negative pole of light-emitting diode D5, the positive pole of light-emitting diode D5 is connected with the other end of capacitor C 4, the other end of capacitor C 5 is connected with the positive pole of light-emitting diode D3 and the negative pole of diode D6, the positive pole of diode D6 connects diode D8 successively, D9 and D10, the positive pole of light-emitting diode D4 is connected with the negative pole of light-emitting diode D7, the positive pole of light-emitting diode D7 is connected with the other end of capacitor C 6.
5. automobile portable lighter in daytime module according to claim 1, is characterized in that, described failure detector circuit comprises resistance R 14, R27, R28, R29, capacitor C 16, C17, triode Q6, the low double diode D11 of leakage and D12; The collector electrode of triode Q6 connects respectively an end of capacitor C 17 and an end of resistance R 29, one end of the emitter of the other end of the other end of resistance R 29, capacitor C 17, triode Q6, resistance R 28 and an end of capacitor C 16 are connected to each other and ground connection, the base stage of triode Q6 is the other end, the other end of capacitor C 16 and the end of resistance R 27 of contact resistance R28 respectively, the other end of resistance R 27 is by low double diode D12 an end and the low double diode D11 that leaks of contact resistance R14 respectively of leaking, and the other end of resistance R 14 connects the VS end.
6. automobile portable lighter in daytime module according to claim 1, it is characterized in that, described Current Negative Three-Point Capacitance constant-current drive circuit comprises resistance R 4, R5, R6, R7, R11, R12, R13, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, capacitor C 7, C8, C13, C14, C15, triode Q2, Q3, Q4, voltage stabilizing didoe Z1 and chip U1A, one end of capacitor C 7, one end of capacitor C 8, 8 pin of the positive pole of voltage stabilizing didoe Z1 and chip U1A are connected to each other, the other end of the other end of capacitor C 7 and capacitor C 8 is connected to each other and ground connection, the minus earth of voltage stabilizing didoe Z1, the end of the 1 pin difference contact resistance R4 of chip U1A and an end of capacitor C 13, the other end of capacitor C 13 is the end of contact resistance R11 respectively, one end of resistance R 12, one end of resistance R 13, one end of capacitor C 15 and 2 pin of chip U1A, the other end ground connection of capacitor C 15, the other end of resistance R 11 is the end of contact resistance R23 respectively, one end of resistance R 24, one end of resistance R 25, one end of resistance R 26 and the emitter of triode Q4, the other end of resistance R 23, the other end of resistance R 24, the other end of the other end of resistance R 25 and resistance R 26 is connected to each other and ground connection, and the other end of resistance R 12 is the end of contact resistance R19 respectively, one end of resistance R 20, one end of resistance R 21, one end of resistance R 22 and the emitter of triode Q3, the other end of resistance R 19, the other end of resistance R 20, the other end of the other end of resistance R 21 and resistance R 22 is connected to each other and ground connection, and the other end of resistance R 13 is the end of contact resistance R15 respectively, one end of resistance R 16, one end of resistance R 17, one end of resistance R 18 and the emitter of triode Q2, the other end of resistance R 15, the other end of resistance R 16, the other end of the other end of resistance R 17 and resistance R 18 is connected to each other and ground connection, and the other end of resistance R 4 is the end of contact resistance R5 respectively, one end of one end of resistance R 6 and an end of resistance R 7 and capacitor C 14, the other end ground connection of capacitor C 14, the base stage of the other end connecting triode Q2 of resistance R 5, the base stage of the other end connecting triode Q3 of resistance R 6, the base stage of the other end connecting triode Q4 of resistance R 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220542997XU CN202931616U (en) | 2012-10-22 | 2012-10-22 | Automobile daytime running lamp module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220542997XU CN202931616U (en) | 2012-10-22 | 2012-10-22 | Automobile daytime running lamp module |
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| CN202931616U true CN202931616U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220542997XU Expired - Fee Related CN202931616U (en) | 2012-10-22 | 2012-10-22 | Automobile daytime running lamp module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349558A (en) * | 2014-11-11 | 2015-02-11 | 河南天海电器有限公司 | Driving device of automobile LED (light emitting diode) steering lamp |
| CN105263248A (en) * | 2015-10-29 | 2016-01-20 | 奇瑞汽车股份有限公司 | Fault feedback protection circuit of LED daytime running lamp for vehicles |
| CN108575008A (en) * | 2017-03-27 | 2018-09-25 | 常州星宇车灯股份有限公司 | The control circuit of automobile integrated LED lamp |
| CN111372353A (en) * | 2018-12-24 | 2020-07-03 | 法雷奥北美有限公司 | Proportional current source circuit, LED drive circuit, car light and vehicle |
| CN111491414A (en) * | 2020-04-21 | 2020-08-04 | 宁波市富来电子科技有限公司 | Light driving system for vehicle daytime running light and position light |
-
2012
- 2012-10-22 CN CN201220542997XU patent/CN202931616U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349558A (en) * | 2014-11-11 | 2015-02-11 | 河南天海电器有限公司 | Driving device of automobile LED (light emitting diode) steering lamp |
| CN105263248A (en) * | 2015-10-29 | 2016-01-20 | 奇瑞汽车股份有限公司 | Fault feedback protection circuit of LED daytime running lamp for vehicles |
| CN105263248B (en) * | 2015-10-29 | 2017-08-04 | 奇瑞汽车股份有限公司 | A kind of failure feedback protection circuit of automobile-used LED daytime running lamps |
| CN108575008A (en) * | 2017-03-27 | 2018-09-25 | 常州星宇车灯股份有限公司 | The control circuit of automobile integrated LED lamp |
| CN111372353A (en) * | 2018-12-24 | 2020-07-03 | 法雷奥北美有限公司 | Proportional current source circuit, LED drive circuit, car light and vehicle |
| CN111491414A (en) * | 2020-04-21 | 2020-08-04 | 宁波市富来电子科技有限公司 | Light driving system for vehicle daytime running light and position light |
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