CN208227377U - Automobile position lamp fault protection circuit round the clock - Google Patents
Automobile position lamp fault protection circuit round the clock Download PDFInfo
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- CN208227377U CN208227377U CN201820681780.4U CN201820681780U CN208227377U CN 208227377 U CN208227377 U CN 208227377U CN 201820681780 U CN201820681780 U CN 201820681780U CN 208227377 U CN208227377 U CN 208227377U
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- 238000001228 spectrum Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 109
- ATCJTYORYKLVIA-SRXJVYAUSA-N vamp regimen Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1.C=1N=C2N=C(N)N=C(N)C2=NC=1CN(C)C1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1.O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1.C([C@H](C[C@]1(C(=O)OC)C=2C(=CC3=C(C45[C@H]([C@@]([C@H](OC(C)=O)[C@]6(CC)C=CCN([C@H]56)CC4)(O)C(=O)OC)N3C=O)C=2)OC)C[C@@](C2)(O)CC)N2CCC2=C1NC1=CC=CC=C21 ATCJTYORYKLVIA-SRXJVYAUSA-N 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 10
- 206010039203 Road traffic accident Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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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
The utility model belongs to LED light fault detection technique field, it is proposed automobile position lamp fault protection circuit round the clock, including interface module, DC-DC driving drive module, LED light group module, spread spectrum module and PWM light-adjusting module, it is characterized in that, daytime portable lighter and position lamp are connect with interface module, by connecting with DC-DC drive module, the DC-DC drive module is connect with LED light group module, spread spectrum module and PWM light-adjusting module the interface module respectively；It is quick accurate that the fault detection circuit of the utility model not only detects, but also can will test result notice owner by alarm in real time, can effectively prevent traffic accident.
Description
Technical field
The utility model relates to a kind of fault detection circuit, especially a kind of automobile position lamp fault protection circuit round the clock,
Belong to LED light fault detection technique field.
Background technique
Automobile signal light belongs to safety component, such as brake lamp, clearance lamps, position lamp and Rear Fog Lamp, it is therefore an objective to for warning
Show and remind pedestrian and other vehicles, but when these signal lamps break down, driver can not be perceived, and thus influence
To the safety of pedestrian and vehicle.Currently, checking that the working condition of auto lamp mainly manually checks.In driving, in addition to big
Outside lamp and turn signal, driver is difficult to know the working condition of other positions lamp, does not work when position lamp round the clock breaks down especially
When, in night running, just it is easy to that traffic accident occurs.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, a kind of automobile position lamp failure round the clock is provided
Detection circuit, for the fault detection of automobile position lamp round the clock, the fault detection circuit is structurally reasonable, can effectively prevent traffic thing
Therefore generation.
To realize above technical purpose, the technical solution adopted in the utility model is: automobile position lamp fault detection round the clock
Circuit, including interface module, DC-DC driving drive module, LED light group module, spread spectrum module and PWM light-adjusting module, feature
It is, daytime portable lighter and position lamp are connect with interface module, and the interface module is described by connecting with DC-DC drive module
DC-DC drive module is connect with LED light group module, spread spectrum module and PWM light-adjusting module respectively.
Further, the interface module includes capacitor C17~C23, C26, C27, C30~C32, diode D2~D5,
Daytime portable lighter and position lamp are respectively connected to the 3rd pin and the 2nd pin of connector J2, the 1st pin ground connection, and capacitor C30 connects with C33
It is in parallel with diac D4 afterwards, and the 3rd pin of an end joint connector J2, other end ground connection, capacitor C31 and C32 go here and there
It is in parallel with diac D5 after connection, and the 2nd pin of an end joint connector J2, other end ground connection；Capacitor C17, C20,
C26 is in parallel, and one end is grounded, the cathode of another terminating diode D2 and D3, while one end of connecting resistance R2, and diode D2 is just
The 3rd pin of pole connecting connector J2, the 2nd pin of the positive connecting connector J2 of diode D3；Capacitor C21, C27, C18 are in parallel,
And one end is grounded, the other end of another terminating resistor R2, while connecing one end of inductance L1；Capacitor C23, C19, C22 are in parallel, and one
End ground connection, the other end of another termination inductance L1, while connecing the end VS.
Further, the DC-DC drive module include driving chip U1, metal-oxide-semiconductor Q1, capacitor C7~C16, C24, C25,
A termination end VS of C28, C29, C34~C41, resistance R3~R18, the resistance R4, the other end are grounded by capacitor C29, together
When access the 14th pin of driving chip U1, capacitor C28, C24, C25 is in parallel, and one end is grounded, and another end termination VS connects simultaneously
One end of inductance L2, the anode of another termination Schottky diode D1 of inductance L2, the capacitor C10 and resistance R1 series connection after with
Schottky diode D1 is in parallel, and capacitor C7, C8, C9 are in parallel, and one end of a termination inductance L2, another termination Schottky diode
The cathode of D1, the anode of Schottky diode D1 access the 4th pin of driving chip U1, while Xiao by resistance R8, capacitor C34
The anode of special based diode D1 is connect with the drain electrode of metal-oxide-semiconductor Q1, and the grid of metal-oxide-semiconductor Q1 accesses driving chip U1 by resistance R10
The 2nd pin, the 4th pin of the source electrode access driving chip U1 of metal-oxide-semiconductor Q1, resistance R13 and R14 is in parallel, and one end is grounded, separately
The 4th pin of one end access driving chip U1；The cathode of Schottky diode D1 is grounded by divider resistance R9, R11, and capacitor
C36 is in parallel with resistance R11, and resistance R9, R11 series termination enters the 9th pin of driving chip U1；Capacitor C11, C12, C13,
C14 is in parallel, and one end is grounded, the cathode of another termination Schottky diode D1, while connecing one end of capacitor C35, resistance R3,
R5, R6 are in parallel, and one end of a termination capacitor C35, and the other end is connect by resistance R7 with the other end of capacitor C35, the electricity
Hold the 6th pin of one end access driving chip U1 of C35, the other end accesses the 7th pin of driving chip U1；Driving chip U1's
12nd and 15 pins ground connection；Capacitor C15, C16 are in parallel, and one end is grounded, the 1st pin of another end joint connector J3, connector
The 2nd pin of J3 connects the end VS；One end of capacitor C37 is grounded, the 1st pin of other end access driving chip U1, resistance R16,
R15, capacitor C38 are in parallel, and one end is grounded, and the other end accesses the 10th pin of driving chip U1, and the both ends of resistance R12 connect respectively
11st pin of the 1st and the 10th pin of driving chip U1, driving chip U1 is the end FRQ, and the 13rd pin of driving chip U1 is
5th pin at the end PWM, driving chip U1 is hanging, and resistance R18 is in parallel with capacitor C40 after connecting with capacitor C41, and one end is grounded,
The 8th pin of other end access driving chip U1.
Further, the LED light group module includes capacitor C1~C6,1~LED6 of Light-emitting diode LED, capacitor C1 with
Light-emitting diode LED 1 is in parallel, and capacitor C2 is in parallel with Light-emitting diode LED 2, and capacitor C3 is in parallel with Light-emitting diode LED 3, capacitor
C4 is in parallel with Light-emitting diode LED 4, and capacitor C5 is in parallel with Light-emitting diode LED 5, and capacitor C6 is in parallel with Light-emitting diode LED 6,
And the light emitting diode positive and negative anodes after parallel connection join end to end, and the 2nd pipe of the cathode access connector J1 of Light-emitting diode LED 1
Foot, the 1st pin of the anode access connector J1 of Light-emitting diode LED 6.
Further, the spread spectrum module includes amplifier U3, transistor Q3, and the electrode input end of the amplifier U3 connects
The series connection end of resistance R26 and resistance R35, the end another termination VAMP of resistance R26, the other end ground connection of resistance R35, amplifier U3
Negative input be grounded by capacitor C47, the output end of amplifier U3 by resistance R33 feedback link to amplifier U3 just
Pole input terminal, and by the cathode input point of resistance R36 feedback link to amplifier U3, and output end is accessed by resistance R29
The base stage of transistor Q3, the emitter ground connection of transistor Q3, while being connect by resistance R31 with the base stage of transistor Q3, crystal
The collector of pipe Q3 is connect with one end of resistance R22, is grounded after resistance R22, R23, R24 series connection, and resistance R22, R23 series connection end
It is grounded by capacitor C43, the end resistance R23, R24 series termination FRQ.
Further, the PWM light-adjusting module includes amplifier U2, transistor Q2, and resistance R32 is in parallel with capacitor C45, and
One end ground connection, the other end access the electrode input end of amplifier U2, and the electrode input end of amplifier U2 meets VAMP by resistance R20
End, the end VAMP are grounded by capacitor C42, and the negative input of amplifier U2 is grounded by capacitor C46, the output end of amplifier U2
The electrode input end that amplifier U2 is accessed by resistance R30, the negative input of amplifier U2 is accessed by resistance R34, and is put
The output end of big device U2 is connect by resistance R27 with the anode of diode D7, and the cathode of diode D7 is grounded by resistance R28,
The cathode of diode D7 is connect with the cathode of diode D6 simultaneously, and the cathode of diode D6 connects the end PWM, and the anode of diode D6 is logical
It crosses resistance R19 and meets the end VS, while the collector of access transistor Q2, the collector emitter ground connection of transistor Q2, transistor Q2
Base stage be grounded by resistance R25, resistance R25 is in parallel with capacitor C44, at the same the base stage of transistor Q2 pass through resistance R21, pressure stabilizing
Diode Z2 connects the end FPL.
Further, the capacitor C39 is in parallel with zener diode Z1, and one end is grounded, another end termination VAMP, simultaneously
The end VS is connect by resistance R17.
From the above, it can be seen that the fault detection circuit for having the technical effect that the utility model of the utility model
Not only detection is quick accurate, and can real-time detection position lamp round the clock luminous situation, and result notice will test by alarm
Owner can effectively prevent traffic accident.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model interface module and DC-DC drive module.
Fig. 2 is the circuit diagram of the utility model LED light group module.
Fig. 3 is the circuit diagram of the utility model spread spectrum module.
Fig. 4 is the circuit diagram of the utility model PWM light-adjusting module.
Fig. 5 is the supplementary circuitry schematic diagram of the utility model PWM light-adjusting module.
Description of symbols: 1- interface module, 2-DC-DC drive module, 3-LED lamp group module, 4- spread spectrum module, 5-
PWM light-adjusting module.
Specific embodiment
Below with reference to specific drawings and examples, the utility model is described in further detail.
With reference to the accompanying drawings shown in 1~4, automobile position lamp fault protection circuit, including interface module 1, DC-DC driving drive round the clock
Dynamic model block 2, LED light group module 3, spread spectrum module 4 and PWM light-adjusting module 5, which is characterized in that daytime portable lighter and position lamp with connect
The connection of mouth mold block 1, the interface module 1 by being connect with DC-DC drive module 2, the DC-DC drive module 2 respectively with
LED light group module 3, spread spectrum module (4) and PWM light-adjusting module 5 connect.
As shown in Figure 1, interface module 1 includes capacitor C17~C23, C26, C27, C30~C32, diode D2~D5, daytime
Portable lighter and position lamp are respectively connected to the 3rd pin and the 2nd pin of connector J2, the 1st pin ground connection, after capacitor C30 connects with C33
It is in parallel with diac D4, and the 3rd pin of an end joint connector J2, other end ground connection, capacitor C31 connect with C32
It is in parallel with diac D5 afterwards, and the 2nd pin of an end joint connector J2, other end ground connection；Capacitor C17, C20, C26
Parallel connection, and one end is grounded, the cathode of another terminating diode D2 and D3, while one end of connecting resistance R2, the anode of diode D2
The 3rd pin of connecting connector J2, the 2nd pin of the positive connecting connector J2 of diode D3；Capacitor C21, C27, C18 are in parallel, and
One end ground connection, the other end of another terminating resistor R2, while connecing one end of inductance L1；Capacitor C23, C19, C22 are in parallel, and one end
Ground connection, the other end of another termination inductance L1, while connecing the end VS.
As shown in Figure 1, DC-DC drive module 2 include driving chip U1, metal-oxide-semiconductor Q1, capacitor C7~C16, C24, C25,
A termination end VS of C28, C29, C34~C41, resistance R3~R18, the resistance R4, the other end are grounded by capacitor C29, together
When access the 14th pin of driving chip U1, capacitor C28, C24, C25 is in parallel, and one end is grounded, and another end termination VS connects simultaneously
One end of inductance L2, the anode of another termination Schottky diode D1 of inductance L2, the capacitor C10 and resistance R1 series connection after with
Schottky diode D1 is in parallel, and capacitor C7, C8, C9 are in parallel, and one end of a termination inductance L2, another termination Schottky diode
The cathode of D1, the anode of Schottky diode D1 access the 4th pin of driving chip U1, while Xiao by resistance R8, capacitor C34
The anode of special based diode D1 is connect with the drain electrode of metal-oxide-semiconductor Q1, and the grid of metal-oxide-semiconductor Q1 accesses driving chip U1 by resistance R10
The 2nd pin, the 4th pin of the source electrode access driving chip U1 of metal-oxide-semiconductor Q1, resistance R13 and R14 is in parallel, and one end is grounded, separately
The 4th pin of one end access driving chip U1；The cathode of Schottky diode D1 is grounded by divider resistance R9, R11, and capacitor
C36 is in parallel with resistance R11, and resistance R9, R11 series termination enters the 9th pin of driving chip U1；Capacitor C11, C12, C13,
C14 is in parallel, and one end is grounded, the cathode of another termination Schottky diode D1, while connecing one end of capacitor C35, resistance R3,
R5, R6 are in parallel, and one end of a termination capacitor C35, and the other end is connect by resistance R7 with the other end of capacitor C35, the electricity
Hold the 6th pin of one end access driving chip U1 of C35, the other end accesses the 7th pin of driving chip U1；Driving chip U1's
12nd and 15 pins ground connection；Capacitor C15, C16 are in parallel, and one end is grounded, the 1st pin of another end joint connector J3, connector
The 2nd pin of J3 connects the end VS；One end of capacitor C37 is grounded, the 1st pin of other end access driving chip U1, resistance R16,
R15, capacitor C38 are in parallel, and one end is grounded, and the other end accesses the 10th pin of driving chip U1, and the both ends of resistance R12 connect respectively
11st pin of the 1st and the 10th pin of driving chip U1, driving chip U1 is the end FRQ, and the 13rd pin of driving chip U1 is
5th pin at the end PWM, driving chip U1 is hanging, and resistance R18 is in parallel with capacitor C40 after connecting with capacitor C41, and one end is grounded,
The 8th pin of other end access driving chip U1.
As shown in Fig. 2, LED light group module 3 includes capacitor C1~C6,1~LED6 of Light-emitting diode LED, capacitor C1 and hair
Optical diode LED1 is in parallel, and capacitor C2 is in parallel with Light-emitting diode LED 2, and capacitor C3 is in parallel with Light-emitting diode LED 3, capacitor C4
In parallel with Light-emitting diode LED 4, capacitor C5 is in parallel with Light-emitting diode LED 5, and capacitor C6 is in parallel with Light-emitting diode LED 6, and
Light emitting diode positive and negative anodes after parallel connection join end to end, and the 2nd pin of the cathode access connector J1 of Light-emitting diode LED 1,
The 1st pin of the anode access connector J1 of Light-emitting diode LED 6.
As shown in figure 3, spread spectrum module 4 includes amplifier U3, transistor Q3, the electrode input end of the amplifier U3 connects electricity
The series connection end of R26 and resistance R35 is hindered, the other end at the end another termination VAMP of resistance R26, resistance R35 is grounded, amplifier U3's
Negative input is grounded by capacitor C47, the anode that the output end of amplifier U3 passes through resistance R33 feedback link to amplifier U3
Input terminal, and by the cathode input point of resistance R36 feedback link to amplifier U3, and output end is brilliant by resistance R29 access
The base stage of body pipe Q3, the emitter ground connection of transistor Q3, while being connect by resistance R31 with the base stage of transistor Q3, transistor
The collector of Q3 is connect with one end of resistance R22, is grounded after resistance R22, R23, R24 series connection, and resistance R22, R23 series connection end are logical
Cross capacitor C43 ground connection, the end resistance R23, R24 series termination FRQ.
As shown in Figure 4 and Figure 5, PWM light-adjusting module 5 includes amplifier U2, transistor Q2, and resistance R32 and capacitor C45 are simultaneously
Connection, and one end is grounded, the other end accesses the electrode input end of amplifier U2, and the electrode input end of amplifier U2 passes through resistance R20
The end VAMP is connect, the end VAMP is grounded by capacitor C42, and the negative input of amplifier U2 is grounded by capacitor C46, amplifier U2's
Output end accesses the electrode input end of amplifier U2 by resistance R30, is inputted by the cathode that resistance R34 accesses amplifier U2
End, and the output end of amplifier U2 is connect by resistance R27 with the anode of diode D7, the cathode of diode D7 passes through resistance
R28 ground connection, while the cathode of diode D7 is connect with the cathode of diode D6, the cathode of diode D6 meets the end PWM, diode D6
Anode the end VS, while the collector of access transistor Q2 are connect by resistance R19, the collector emitter ground connection of transistor Q2,
The base stage of transistor Q2 is grounded by resistance R25, and resistance R25 is in parallel with capacitor C44, while the base stage of transistor Q2 passes through resistance
R21, zener diode Z2 connect the end FPL.
The capacitor C39 is in parallel with zener diode Z1, and one end is grounded, another end termination VAMP, while passing through resistance
R17 connects the end VS
Driving chip U1 in the utility model embodiment selects the chip of brand Infineon model TLD5097EL.
Utility model works principle: the entire scheme of the utility model more preferable can must be applicable in by the way of buck
Load, and since Light-emitting diode LED uses concatenated mode, when having the damage of Light-emitting diode LED, entire LED light group
Module 3 will be extinguished, and at this moment vehicle can detect that the input current of lamps and lanterns reduces, and warning note driver changes lamp, increases row
Vehicle safety.
The utility model and embodiments thereof are described above, description is not limiting, shown in the drawings
It also is one of the embodiments of the present invention, actual structure is not limited to this.If the ordinary skill people of this field
Member is enlightened by it, without deviating from the purpose of the present invention, is not inventively designed and the technical solution
Similar frame mode and embodiment, all should belong to the protection range of the utility model.
Claims (7)
1. automobile position lamp fault protection circuit, including interface module (1), DC-DC driving drive module (2), LED light group round the clock
Module (3), spread spectrum module (4) and PWM light-adjusting module (5), which is characterized in that daytime portable lighter and position lamp with interface module (1)
Connection, the interface module (1) by being connect with DC-DC drive module (2), the DC-DC drive module (2) respectively with LED
Lamp group module (3), spread spectrum module (4) and PWM light-adjusting module (5) connection.
2. automobile according to claim 1 position lamp fault protection circuit round the clock, it is characterised in that: the interface module
It (1) include capacitor C17~C23, C26, C27, C30~C32, diode D2~D5, daytime portable lighter and position lamp are respectively connected to connect
The 3rd pin of device J2 and the 2nd pin, the 1st pin ground connection, capacitor C30 is in parallel with diac D4 after connecting with C33,
And one end joint connector J2 the 3rd pin, the other end ground connection, capacitor C31 connect with C32 after with diac D5 simultaneously
Connection, and the 2nd pin of an end joint connector J2, other end ground connection；Capacitor C17, C20, C26 are in parallel, and one end is grounded, the other end
Connect the cathode of diode D2 and D3, while one end of connecting resistance R2, the 3rd pin of the positive connecting connector J2 of diode D2, two
The 2nd pin of the positive connecting connector J2 of pole pipe D3；Capacitor C21, C27, C18 are in parallel, and one end is grounded, another terminating resistor R2
The other end, while connecing one end of inductance L1；Capacitor C23, C19, C22 are in parallel, and one end is grounded, and another termination inductance L1's is another
One end, while connecing the end VS.
3. automobile according to claim 1 position lamp fault protection circuit round the clock, it is characterised in that: the DC-DC driving
Module (2) include driving chip U1, metal-oxide-semiconductor Q1, capacitor C7~C16, C24, C25, C28, C29, C34~C41, resistance R3~
A termination end VS of R18, the resistance R4, the other end are grounded by capacitor C29, while accessing the 14th pipe of driving chip U1
Foot, capacitor C28, C24, C25 are in parallel, and one end is grounded, another end termination VS, while connecing one end of inductance L2, and inductance L2's is another
, capacitor in parallel with Schottky diode D1 after the anode of one termination Schottky diode D1, the capacitor C10 and resistance R1 series connection
C7, C8, C9 are in parallel, and one end of a termination inductance L2, the cathode of another termination Schottky diode D1, Schottky diode D1
Anode the 4th pin of driving chip U1, while the anode and MOS of Schottky diode D1 are accessed by resistance R8, capacitor C34
The drain electrode of pipe Q1 connects, and the grid of metal-oxide-semiconductor Q1 accesses the 2nd pin of driving chip U1, the source electrode of metal-oxide-semiconductor Q1 by resistance R10
The 4th pin of driving chip U1 is accessed, resistance R13 and R14 are in parallel, and one end is grounded, and the other end accesses the 4th of driving chip U1
Pin；The cathode of Schottky diode D1 is grounded by divider resistance R9, R11, and capacitor C36 is in parallel with resistance R11, and resistance
R9, R11 series termination enter the 9th pin of driving chip U1；Capacitor C11, C12, C13, C14 are in parallel, and one end is grounded, the other end
The cathode of Schottky diode D1 is connect, while connecing one end of capacitor C35, resistance R3, R5, R6 are in parallel, and a termination capacitor C35
One end, the other end are connect by resistance R7 with the other end of capacitor C35, one end access driving chip U1's of the capacitor C35
6th pin, the other end access the 7th pin of driving chip U1；The 12nd and 15 pins of driving chip U1 are grounded；Capacitor C15,
C16 is in parallel, and one end is grounded, and the 2nd pin of the 1st pin of another end joint connector J3, connector J3 connects the end VS；Capacitor C37
One end ground connection, the other end accesses the 1st pin of driving chip U1, and resistance R16, R15, capacitor C38 are in parallel, and one end is grounded,
The other end accesses the 10th pin of driving chip U1, and the both ends of resistance R12 connect the 1st and the 10th pin of driving chip U1 respectively,
The 11st pin of driving chip U1 is the end FRQ, and the 13rd pin of driving chip U1 is the end PWM, and the 5th pin of driving chip U1 is outstanding
Sky, resistance R18 is in parallel with capacitor C40 after connecting with capacitor C41, and one end is grounded, and the other end accesses the 8th pipe of driving chip U1
Foot.
4. automobile according to claim 1 position lamp fault protection circuit round the clock, it is characterised in that: the LED light group mould
Block (3) includes capacitor C1~C6,1~LED6 of Light-emitting diode LED, and capacitor C1 is in parallel with Light-emitting diode LED 1, capacitor C2 with
Light-emitting diode LED 2 is in parallel, and capacitor C3 is in parallel with Light-emitting diode LED 3, and capacitor C4 is in parallel with Light-emitting diode LED 4, capacitor
C5 is in parallel with Light-emitting diode LED 5, and capacitor C6 is in parallel with Light-emitting diode LED 6, and the light emitting diode positive and negative anodes after parallel connection
It joins end to end, and the 2nd pin of the cathode access connector J1 of Light-emitting diode LED 1, the anode access of Light-emitting diode LED 6
The 1st pin of connector J1.
5. automobile according to claim 1 position lamp fault protection circuit round the clock, it is characterised in that: the spread spectrum module
It (4) include the series connection end of the electrode input end connecting resistance R26 and resistance R35 of amplifier U3, transistor Q3, the amplifier U3,
The end another termination VAMP of resistance R26, the other end ground connection of resistance R35, the negative input of amplifier U3 are connect by capacitor C47
Ground, the output end of amplifier U3 passes through resistance R33 feedback link to the electrode input end of amplifier U3, and it is anti-to pass through resistance R36
Feedback is connected to the cathode input point of amplifier U3, and output end passes through the base stage of resistance R29 access transistor Q3, transistor Q3's
Emitter ground connection, while being connect by resistance R31 with the base stage of transistor Q3, the collector of transistor Q3 and the one of resistance R22
End connection is grounded after resistance R22, R23, R24 series connection, and resistance R22, R23 series connection end are grounded by capacitor C43, resistance R23,
The end R24 series termination FRQ.
6. automobile according to claim 1 position lamp fault protection circuit round the clock, it is characterised in that: the PWM dims mould
Block (5) includes amplifier U2, transistor Q2, and resistance R32 is in parallel with capacitor C45, and one end is grounded, and the other end accesses amplifier U2
Electrode input end, the electrode input end of amplifier U2 connects the end VAMP by resistance R20, and the end VAMP is grounded by capacitor C42, is put
The negative input of big device U2 is grounded by capacitor C46, and the output end of amplifier U2 is accessing amplifier U2 just by resistance R30
Pole input terminal, by resistance R34 access amplifier U2 negative input, and the output end of amplifier U2 by resistance R27 with
The anode connection of diode D7, the cathode of diode D7 is grounded by resistance R28, while the cathode of diode D7 and diode D6
Cathode connection, the cathode of diode D6 connects the end PWM, and the anode of diode D6 connects the end VS by resistance R19, while accessing crystal
The collector of pipe Q2, the collector emitter ground connection of transistor Q2, the base stage of transistor Q2 are grounded by resistance R25, resistance R25
It is in parallel with capacitor C44, while the base stage of transistor Q2 connects the end FPL by resistance R21, zener diode Z2.
7. automobile according to claim 6 position lamp fault protection circuit round the clock, it is characterised in that: the capacitor C39 with
Zener diode Z1 is in parallel, and one end is grounded, another end termination VAMP, while connecing the end VS by resistance R17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681780.4U CN208227377U (en) | 2018-05-09 | 2018-05-09 | Automobile position lamp fault protection circuit round the clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681780.4U CN208227377U (en) | 2018-05-09 | 2018-05-09 | Automobile position lamp fault protection circuit round the clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208227377U true CN208227377U (en) | 2018-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820681780.4U Expired - Fee Related CN208227377U (en) | 2018-05-09 | 2018-05-09 | Automobile position lamp fault protection circuit round the clock |
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| Country | Link |
|---|---|
| CN (1) | CN208227377U (en) |
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2018
- 2018-05-09 CN CN201820681780.4U patent/CN208227377U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 |