CN108575023A - A kind of car headlamp distance light drive circuit - Google Patents
A kind of car headlamp distance light drive circuit Download PDFInfo
- Publication number
- CN108575023A CN108575023A CN201711069006.4A CN201711069006A CN108575023A CN 108575023 A CN108575023 A CN 108575023A CN 201711069006 A CN201711069006 A CN 201711069006A CN 108575023 A CN108575023 A CN 108575023A
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- distance light
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- 230000005669 field effect Effects 0.000 claims abstract description 59
- 238000011084 recovery Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- 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]
Abstract
The present invention provides a kind of car headlamp distance light drive circuit, including resistance R1, R2, R3, R4, R5, R6, diode D1, D2, D3, D4, D5, distance light luminous tube HD1 HDn, dipped beam luminous tube LD1 LDn, DC DC drive control modules, field-effect tube Q1, Q2, Q3, Q4, power supply VCC.Distance-light of the present invention shares same DC DC drive control modules, by the switching of dummy resistance module and high beam component cost is substantially reduced to realize that far and near optical drive shares, service efficiency is improved, keeps use of the LED light source in distance-light function more and more extensive.
Description
Technical field
The present invention relates to automobile lamp lighting technical fields, and in particular to a kind of car headlamp distance light drive circuit.
Background technology
With epoch progress, development in science and technology and LED it is commonly used, more and more car lights using LED as light source,
It is especially widely used in terms of taillight general.And the application on headlight distance-light function, since its power is bigger, tradition
Linear circuit design service efficiency it is extremely low, be raising efficiency, circuit design uses DC-DC type of drive substantially.But because distance light,
Low-beam function is driven to individual control module, and component cost is too high, this gives use of the LED light source in distance-light function
Bring prodigious obstruction.
Patent 201620663015.0 discloses automobile auto-changing distance light circuit, it includes power supply, light sensation member
Part, sensor circuit, comparator circuit, delay light transformation control circuit, light sensitive component are connect with sensor circuit input terminal,
Sensor circuit output end is connect with comparator circuit input terminal, comparator circuit output end and delay light transformation control circuit
Connection, delay light transformation control circuit are connect with automobile dimming-distance headlight, and light sensitive component, comparator circuit, prolongs sensor circuit
Slow light transformation control circuit and automobile dimming-distance headlight are by power supply power supply.Patent 200910153877.3 discloses a kind of automobile
Headlight far-near light control circuit, including microcontroller EM78P153, three-terminal voltage-stabilizing circuit, full bridge power driving circuit, dipped beam limit
One end, one end of distance light limit contact switch S2 and the two contacts difference of distance-light change-over switch S3 of position contact switch S1
It is connect with microcontroller.Three-terminal voltage-stabilizing circuit includes three terminal regulator and two filter capacitors；Full bridge power driving circuit includes two
A PNP type triode, two NPN type triodes, eight resistance and a filter capacitor.Above-mentioned patent is by by high beam lamp
Light shines directly on the light sensitive component of automotive front end, and light sensitive component is made to be converted to electric energy by luminous energy, drives automobile dimming-distance
Signal light control mechanism realizes the purpose of far and near light auto-changing；Using direct current generator wink is converted in automobile front distance-light
Between work once electrified, realize quick-expansion, achieve the purpose that distance light and dipped beam illuminate respectively.But it is total for car headlamp distance-light
Relevant technical solution is not occurred with driving circuit.
Invention content
(1) the technical issues of solving
The present invention in order to overcome above-mentioned prior art dazzle lamp, dipped beam use independent drive module defect
Problem, the present invention provide a kind of car headlamp distance light drive circuit, and distance-light shares same DC-DC drive control modules,
Component cost is substantially reduced, service efficiency is improved, keeps use of the LED light source in distance-light function more and more extensive.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of car headlamp distance light drive circuit, including resistance R1, R2, R3, R4, R5, R6, diode D1, D2,
D3, D4, D5, distance light luminous tube HD1-HDn, dipped beam luminous tube LD1-LDn, DC-DC drive control module, field-effect tube Q1, Q2,
Q3, Q4, power supply VCC；A power supply VCC input terminal phase with the cathode of diode D1, D2, DC-DC drive control modules respectively
Even, another input end grounding of DC-DC drive control modules；One output end of DC-DC drive control modules is grounded, DC-DC driving controls
Another output end of molding block is connected with luminous tube LD1 anodes, and dipped beam luminous tube LD1-LDn is connected in series with, and dipped beam luminous tube LDn is cloudy
Pole is connected with the one end resistance R4, distance light luminous tube HD1 anodes respectively, and the resistance R4 other ends are connected with field-effect tube Q2 drain electrodes,
Distance light luminous tube HD1-HDn is connected in series with, and distance light luminous tube HDn cathodes are connected with field-effect tube Q3 drain electrodes, the sources field-effect tube Q3
Pole is grounded, and field-effect tube Q3 grids are grounded by resistance R6, field-effect tube Q3 grids and field-effect tube Q4 drain electrodes and resistance R5 mono-
End is connected, and the resistance R5 other ends are connected with power supply VCC；Field-effect tube Q4 source electrodes are grounded, and field-effect tube Q4 grids pass through resistance R3
Ground connection, field-effect tube Q4 grids are connected with diode D5 cathodes, and diode D5 anodes drain with field-effect tube Q1 respectively, diode
D4 anodes, the one end resistance R1 are connected, and the resistance R1 other ends are connected with power supply VCC, diode D4 cathodes and field-effect tube Q2 grids,
The one end resistance R2 is connected, resistance R2 other ends ground connection, field-effect tube Q2 source electrodes ground connection；Field-effect tube Q1 grids are cloudy with diode D3
Extremely it is connected, diode D3 anodes are connected with diode D1, D2 anode respectively.
Further, the DC-DC drive control modules are BOOST switch power modules.
Further, the BOOST switch power modules input voltage is 9-16V.
Further, described field-effect tube Q1, Q2, Q3, Q4 are N-channel MOS pipe.
Further, described diode D1, D2, D3, D4, D5 are fast recovery diode.
Further, the fast recovery diode D1, D2, D3, D4, D5 S2M.
Further, the resistance R4 constitutes dummy resistance module, and the power of dummy resistance module is sent out equal to distance light
The power of light pipe HD1-HDn.
(3) advantageous effect
Beneficial effects of the present invention：A kind of car headlamp distance light drive circuit, distance-light share same DC-DC drivings
Control module substantially reduces first device by the switching of dummy resistance module and high beam to realize that far and near optical drive shares
Part cost improves service efficiency, keeps use of the LED light source in distance-light function more and more extensive.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is present invention driver circuit schematic diagram.
Related elements symbol description：Resistance R1, R2, R3, R4, R5, R6, diode D1, D2, D3, D4, D5, distance light shine
Pipe HD1-HDn, dipped beam luminous tube LD1-LDn, DC-DC drive control module, field-effect tube Q1, Q2, Q3, Q4, power supply VCC, ground
GND。
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In conjunction with Fig. 1, a kind of car headlamp distance light drive circuit, including resistance R1, R2, R3, R4, R5, R6, diode
D1, D2, D3, D4, D5, distance light luminous tube HD1-HDn, dipped beam luminous tube LD1-LDn, DC-DC drive control module, field-effect tube
Q1, Q2, Q3, Q4, power supply VCC, ground GND.Resistance R4 constitutes dummy resistance module.Distance light luminous tube HD1-HDn is LD1-LDn
Series connection constitutes distance light LED module.Dipped beam luminous tube LD1-LDn connects for LD1-LDn, constitutes dipped beam LED module.DC-DC drives
Control module is that DC-DC BOOST are switch power module.
Power supply VCC is connected with an input terminal of the cathode of diode D1, D2, DC-DC drive control modules respectively, DC-
Another input end grounding of DC drive control modules；One output end of DC-DC drive control modules is grounded, DC-DC drive control modules
Another output end is connected with luminous tube LD1 anodes, and dipped beam luminous tube LD1-LDn is connected in series with, dipped beam luminous tube LDn cathodes difference
It is connected with the one end resistance R4, distance light luminous tube HD1 anodes, the resistance R4 other ends are connected with field-effect tube Q2 drain electrodes, distance light hair
Light pipe HD1-HDn is connected in series with, and distance light luminous tube HDn cathodes are connected with field-effect tube Q3 drain electrodes, field-effect tube Q3 source electrodes ground connection,
Field-effect tube Q3 grids are grounded by resistance R6, and field-effect tube Q3 grids are connected with field-effect tube Q4 drain electrodes and the one end resistance R5,
The resistance R5 other ends are connected with power supply VCC；Field-effect tube Q4 source electrodes are grounded, and field-effect tube Q4 grids are grounded by resistance R3, field
Effect pipe Q4 grids are connected with diode D5 cathodes, diode D5 anodes respectively with field-effect tube Q1 drain electrodes, diode D4 anodes,
The one end resistance R1 is connected, and the resistance R1 other ends are connected with power supply VCC, diode D4 cathodes and field-effect tube Q2 grids, resistance R2
One end is connected, resistance R2 other ends ground connection, field-effect tube Q2 source electrodes ground connection；Field-effect tube Q1 grids and diode D3 cathode phases
Even, diode D3 anodes are connected with diode D1, D2 anode respectively.
DC-DC drive control modules are BOOST switch power modules, and BOOST switch power module input voltages are 9-
16V.Field-effect tube Q1, Q2, Q3, Q4 are N-channel MOS pipe.Since the metal-oxide-semiconductor price of P-channel is relatively high, so MOSFET is selected
With N-channel MOS pipe.N-channel MOS pipe belongs to voltage-controlled device, and control is got up more convenient, is not in that second breakdown is existing
As, and thermal stability is relatively good, and anti-interference ability is also very strong.Diode D1, D2, D3, D4, D5 are fast recovery diode, soon
Recovery diode D1, D2, D3, D4, D5 S2M.Resistance R4 constitutes dummy resistance module, the power etc. of dummy resistance module
In the power of distance light luminous tube HD1-HDn.
When specific works, DC-DC drive control modules are BOOST switch power modules, and LD1-LDn is dipped beam luminous tube
LED connects, and HD1-HDn is the LED series connection of distance light luminous tube, and resistance R4 is dummy resistance module, and Q1-Q4 is NMOS tube, D1-D5
For anti-reverse diode.When powering to dipped headlight, Low Beam are high level, and Switching Power Supply inputs 9-16V voltages, and output is permanent
Constant voltage Vout is the LD1-LDn power supplies of dipped beam luminous tube, simultaneously because the effect of anti-reverse diode D2 so that field-effect tube Q1
Grid is low level, and field-effect tube Q1 is not turned on, and field-effect tube Q2, Q4 is due to the effect of pull-up power supply VCC, field-effect tube
Q2, Q4 are both turned on, so that the R4 work of dummy resistance module, field-effect tube Q3 are not turned on, distance light luminous tube HD1-HDn is not
Work, only dipped headlight is opened at this time.When powering to high beam, High Beam are high level, same Switching Power Supply input
9-16V voltages, output constant voltage Vout is the HD1-HDn power supplies of distance light luminous tube, and field-effect tube Q1 grids are high electricity at this time
Flat, field-effect tube Q1 conductings, so that field-effect tube Q2, Q4 grid is low level, field-effect tube Q2, Q4 is not turned on, and vacation is negative
Resistive module R4 is carried not work, and field-effect tube Q3 is due to the effect of pull-up power supply VCC, field-effect tube Q3 grids are high level,
Field-effect tube Q3 conductings, the HD1-HDn work of distance light luminous tube, long-and-short distant light is opened at this time.Circuit of the present invention passes through fictitious load
The switching of resistive module and high beam, to realize that far and near optical drive shares.
In conclusion the embodiment of the present invention, car headlamp distance light drive circuit, distance-light share same DC-DC and drive
Dynamic control module substantially reduces member by the switching of dummy resistance module and high beam to realize that far and near optical drive shares
Device cost improves service efficiency, keeps use of the LED light source in distance-light function more and more extensive.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. a kind of car headlamp distance light drive circuit, it is characterised in that：Including resistance R1, R2, R3, R4, R5, R6, two poles
Pipe D1, D2, D3, D4, D5, distance light luminous tube HD1-HDn, dipped beam luminous tube LD1-LDn, DC-DC drive control module, field-effect
Pipe Q1, Q2, Q3, Q4, power supply VCC；Power supply VCC respectively with the cathode of diode D1, D2, one of DC-DC drive control modules
Input terminal is connected, another input end grounding of DC-DC drive control modules；One output end of DC-DC drive control modules is grounded, DC-
Another output end of DC drive control modules is connected with luminous tube LD1 anodes, and dipped beam luminous tube LD1-LDn is connected in series with, dipped beam hair
Light pipe LDn cathodes are connected with the one end resistance R4, distance light luminous tube HD1 anodes respectively, the resistance R4 other ends with field-effect tube Q2
Drain electrode is connected, and distance light luminous tube HD1-HDn is connected in series with, and distance light luminous tube HDn cathodes are connected with field-effect tube Q3 drain electrodes, field effect
Should pipe Q3 source electrodes ground connection, field-effect tube Q3 grids are grounded by resistance R6, field-effect tube Q3 grids and field-effect tube Q4 drain electrodes and
The one end resistance R5 is connected, and the resistance R5 other ends are connected with power supply VCC；Field-effect tube Q4 source electrodes are grounded, and field-effect tube Q4 grids are logical
Resistance R3 ground connection is crossed, field-effect tube Q4 grids are connected with diode D5 cathodes, and diode D5 anodes are leaked with field-effect tube Q1 respectively
Pole, diode D4 anodes, the one end resistance R1 are connected, and the resistance R1 other ends are connected with power supply VCC, diode D4 cathodes and field-effect
Pipe Q2 grids, the one end resistance R2 are connected, resistance R2 other ends ground connection, field-effect tube Q2 source electrodes ground connection；Field-effect tube Q1 grids with
Diode D3 cathodes are connected, and diode D3 anodes are connected with diode D1, D2 anode respectively.
2. a kind of car headlamp distance light drive circuit as described in claim 1, which is characterized in that the DC-DC drivings
Control module is BOOST switch power modules.
3. a kind of car headlamp distance light drive circuit as claimed in claim 2, which is characterized in that the BOOST switches
Power module input voltage is 9-16V.
4. a kind of car headlamp distance light drive circuit as described in claim 1, which is characterized in that the field-effect tube
Q1, Q2, Q3, Q4 are N-channel MOS pipe.
5. a kind of car headlamp distance light drive circuit as described in claim 1, which is characterized in that the diode D1,
D2, D3, D4, D5 are fast recovery diode.
6. a kind of car headlamp distance light drive circuit as claimed in claim 5, which is characterized in that two poles of the fast recovery
Pipe D1, D2, D3, D4, D5 S2M.
7. a kind of car headlamp distance light drive circuit as described in claim 1, which is characterized in that the resistance R4 is constituted
Dummy resistance module, the power of dummy resistance module are equal to the power of distance light luminous tube HD1-HDn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069006.4A CN108575023B (en) | 2017-11-03 | 2017-11-03 | Far and near light driving circuit of automobile headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069006.4A CN108575023B (en) | 2017-11-03 | 2017-11-03 | Far and near light driving circuit of automobile headlamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108575023A true CN108575023A (en) | 2018-09-25 |
| CN108575023B CN108575023B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711069006.4A Active CN108575023B (en) | 2017-11-03 | 2017-11-03 | Far and near light driving circuit of automobile headlamp |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704352A (en) * | 2009-11-16 | 2010-05-12 | 杭州电子科技大学 | Near light and far light control circuit of automotive headlamp |
| CN202818699U (en) * | 2012-08-16 | 2013-03-20 | 重庆雷本光电科技有限公司 | LED automotive headlamp drive circuit |
| JP2015125800A (en) * | 2013-12-25 | 2015-07-06 | 株式会社小糸製作所 | Vehicle lamp |
| CN206332881U (en) * | 2016-12-13 | 2017-07-14 | 武汉通畅汽车电子照明有限公司 | Built-in type distance-light control module |
| CN207573669U (en) * | 2017-11-03 | 2018-07-03 | 常州星宇车灯股份有限公司 | A kind of car headlamp distance light drive circuit |
-
2017
- 2017-11-03 CN CN201711069006.4A patent/CN108575023B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704352A (en) * | 2009-11-16 | 2010-05-12 | 杭州电子科技大学 | Near light and far light control circuit of automotive headlamp |
| CN202818699U (en) * | 2012-08-16 | 2013-03-20 | 重庆雷本光电科技有限公司 | LED automotive headlamp drive circuit |
| JP2015125800A (en) * | 2013-12-25 | 2015-07-06 | 株式会社小糸製作所 | Vehicle lamp |
| CN206332881U (en) * | 2016-12-13 | 2017-07-14 | 武汉通畅汽车电子照明有限公司 | Built-in type distance-light control module |
| CN207573669U (en) * | 2017-11-03 | 2018-07-03 | 常州星宇车灯股份有限公司 | A kind of car headlamp distance light drive circuit |
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| Publication number | Publication date |
|---|---|
| CN108575023B (en) | 2023-12-26 |
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