CN201520248U - Far and near light control circuit of automobile headlight - Google Patents
Far and near light control circuit of automobile headlight Download PDFInfo
- Publication number
- CN201520248U CN201520248U CN2009202000636U CN200920200063U CN201520248U CN 201520248 U CN201520248 U CN 201520248U CN 2009202000636 U CN2009202000636 U CN 2009202000636U CN 200920200063 U CN200920200063 U CN 200920200063U CN 201520248 U CN201520248 U CN 201520248U
- Authority
- CN
- China
- Prior art keywords
- resistance
- positive
- far
- aerotron
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a far and near light control circuit of an automobile headlight. Currently, the cost for realizing far and near light control of the automobile headlight is relatively high; and the far and near light control circuit comprises a singlechip EM78P153, a three-terminal voltage stabilizing circuit and a full-bridge power drive circuit. One end of a near light limiting contact switch S1, one end of a far light limiting contact switch S2 and two contacts of a far and near light change-over switch S3 are respectively connected with the singlechip. The three-terminal voltage stabilizing circuit comprises a three-terminal voltage stabilizer and two filter capacitors; the full-bridge power drive circuit comprises two PNP type triodes, two NPN type triodes, eight resistors and one filter capacitor. A direct-current motor in the far and near light control circuit obtains electricity for work at the change-over instance of far and near light of the automobile headlight to realize fast stretch so as to achieve the aim of illumination of far light and near light respectively, thus realizing that far light and near light share one light source and one electronic ballast, and saving the cost of the automobile headlight. The far and near light control circuit has small power consumption and high reliability.
Description
Technical field
The utility model relates to the far and near light conversion control circuit of a kind of automobile front, is mainly used in the integrated light fixture of automobile dimming-distance light, belongs to electronic technology field.
Background technology
Automobile front is a vitals that guarantees automobile safety traffic in night, automobile is in night during running on expressway, require the distance of head light irradiation enough far away, and automobile is when night, avenue travelled, require the light-struck distance of head light too not far away again, in order to avoid influence other vehicle '.And in traditional automobile front far and near light each with a bulb, so fitting structure complexity especially is not suitable for the new automobile xenon front lamp.
The vehicle xenon lamp is the New-generation efficient energy-saving green light source after filament lamp and halide torch, and the light output of xenon lamp is that 4 times of halide torch, life-span are more than 10 times of halide torch, and colour rendering is better, therefore is the perfect light source that substitutes traditional halide torch.The same with other traditional gas-discharge lamp, xenon lamp also has negative resistance effect, must could work the distribution sub-ballast during use.The price of present xenon fluorescent tube and electric ballast is tens of times of common halide torch, therefore in order to save the cost of automobile front tool, wish the shared light source of far and near luminous energy and an electric ballast, by far and near optical controller automobile front pipe energy quick-expansion, reach the purpose that distance light and dipped beam throw light on respectively.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art exactly, provides a kind of later-model car headlamp far and near light control circuit.
The utility model comprises micro controller system EM78P153, three-terminal voltage-stabilizing circuit, full bridge power driving circuit.
The end of the spacing contact switch S1 of dipped beam is connected with the P62 pin of micro controller system EM78P153, the end of the spacing contact switch S2 of distance light is connected with the P63 pin of micro controller system EM78P153, two contacts of far and near light change-over swith S3 are connected with the P65 pin with the P64 pin of micro controller system EM78P153 respectively, wherein the P64 pin is that dipped beam signal end, P65 pin are the distance light signal end, and the GND pin of the other end of the spacing contact switch S2 of the other end, distance light of the spacing contact switch S1 of dipped beam, the common port of far and near light change-over swith S3 and micro controller system EM78P153 all is connected with the negative pole of automotive battery.
The three-terminal voltage-stabilizing circuit comprises three terminal regulator U1, the first filter capacitor C1 and the second filter capacitor C2.The Vout end of three terminal regulator U1, the end of the first filter capacitor C1 are connected with the Vcc pin of micro controller system EM78P153, the Vin end of three terminal regulator U1, the end of the second filter capacitor C2 are connected with the positive pole of automotive battery, and the other end of the other end of the first filter capacitor C1, the second filter capacitor C2 and the GND pin of three terminal regulator U1 all are connected with the negative pole of automotive battery.
The full bridge power driving circuit comprises the first positive-negative-positive aerotron Q101, the second positive-negative-positive aerotron Q102, a NPN type aerotron Q201, the 2nd NPN type aerotron Q202, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 3rd filter capacitor C3.
The base stage of the first positive-negative-positive aerotron Q101 is connected with an end of first resistance R 1, an end of second resistance R 2, the base stage of the second positive-negative-positive aerotron Q102 is connected with an end of the 5th resistance R 5, an end of the 6th resistance R 6, the base stage of the one NPN type aerotron Q201 is connected with an end of an end of the 3rd resistance R 3, the 4th resistance R 4, and the base stage of the 2nd NPN type aerotron Q202 is connected with an end of an end of the 7th resistance R 7, the 8th resistance R 8; The other end of the emitter of the emitter of the first positive-negative-positive aerotron Q101, the second positive-negative-positive aerotron Q102, the other end of first resistance R 1, the 5th resistance R 5 all is connected with the positive pole of automotive battery, the other end of the emitter of the emitter of the one NPN type aerotron Q201, the 2nd NPN type aerotron Q202, the other end of the 4th resistance R 4, the 8th resistance R 8 all is connected with the negative pole of automotive battery, the other end of the 3rd resistance R 3 is connected with the P60 pin of micro controller system EM78P153, and the other end of the 7th resistance R 7 is connected with the P61 pin of micro controller system EM78P153; The collecting electrode of the collecting electrode of the other end of the 6th resistance R 6, the first positive-negative-positive aerotron Q101, a NPN type aerotron Q201, the end of the 3rd filter capacitor C3 all are connected with an input end of DC machine, and the collecting electrode of the collecting electrode of the other end of second resistance R 2, the second positive-negative-positive aerotron Q102, the 2nd NPN type aerotron Q202, the other end of the 3rd filter capacitor C3 all are connected with another input end of DC machine.
The utility model is by micro controller system EM78P153 control, and when far and near light change-over swith S3 common port mediated, the P60 pin of micro controller system EM78P153 and P61 pin were all exported low Gao Ping, and DC machine is not changeed; When far and near light change-over swith S3 common port turns to P65 pin (being high-beam condition), this moment micro controller system EM78P153 P65 pin input low level, P60 pin output high level, P61 output low level, the second positive-negative-positive aerotron Q102 and a NPN type aerotron Q201 conducting, the first positive-negative-positive aerotron Q101 and the 2nd NPN type aerotron Q202 end, DC machine is just changeed, fluorescent tube is protruding, after meeting the spacing contact switch S2 of distance light on the light fixture, motor stall, and the position of pinning fluorescent tube by mechanical device; When far and near light change-over swith S3 turns to P64 pin (being the dipped beam state), this moment micro controller system EM78P153 P64 pin input low level, P60 pin output low level, P61 pin output high level, NP type aerotron Q101 and the 2nd NPN type aerotron Q202 conducting, the second positive-negative-positive aerotron Q102 and a NPN type aerotron Q201 end, DC machine counter-rotating, the inside indentation of fluorescent tube, after meeting the spacing contact switch S1 of dipped beam, the motor stall.Therefore, DC machine in the utility model only gets electric work in the far and near light conversion of automobile front moment, the automobile front pipe is realized quick-expansion by far and near optical controller, reach distance light and dipped beam illumination purposes respectively, thereby realize the shared light source of far and near luminous energy and an electric ballast, saved the cost of automobile front tool.Simultaneously, the utlity model has little, the high reliability features of power consumption.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
The specific embodiment
As shown in Figure 1, the far and near light conversion control circuit of a kind of automobile front comprises micro controller system EM78P153, three-terminal voltage-stabilizing circuit, full bridge power driving circuit.
The end of the spacing contact switch S1 of dipped beam is connected with the P62 pin of micro controller system EM78P153, the end of the spacing contact switch S2 of distance light is connected with the P63 pin of micro controller system EM78P153, two contacts of far and near light change-over swith S3 are connected with the P65 pin with the P64 pin of micro controller system EM78P153 respectively, wherein the P64 pin is that dipped beam signal end, P65 pin are the distance light signal end, and the GND pin of the other end of the spacing contact switch S2 of the other end, distance light of the spacing contact switch S1 of dipped beam, the common port of far and near light change-over swith S3 and micro controller system EM78P153 all is connected with the negative pole of automotive battery 1.
The three-terminal voltage-stabilizing circuit comprises three terminal regulator U1 (78L05), the first filter capacitor C1 (0.1uF) and the second filter capacitor C2 (0.1uF).The Vout end of three terminal regulator U1, the end of the first filter capacitor C1 are connected with the Vcc pin of micro controller system EM78P153, the Vin end of three terminal regulator U1, the end of the second filter capacitor C2 are connected with the positive pole of automotive battery 1, and the other end of the other end of the first filter capacitor C1, the second filter capacitor C2 and the GND pin of three terminal regulator U1 all are connected with the negative pole of automotive battery 1.
The full bridge power driving circuit comprises the first positive-negative-positive aerotron Q101 (2SB772), the second positive-negative-positive aerotron Q102 (2SB772), the one NPN type aerotron Q201 (2SD882), the 2nd NPN type aerotron Q202 (2SD882), first resistance R 1 (4.7K Ω), second resistance R 2 (220 Ω), the 3rd resistance R 3 (220 Ω), the 4th resistance R 4 (4.7K Ω), the 5th resistance R 5 (4.7K Ω), the 6th resistance R 6 (220 Ω), the 7th resistance R 7 (220 Ω), the 8th resistance R 8 (4.7K Ω), the 3rd filter capacitor C3 (1uF CBB electric capacity).
The base stage of the first positive-negative-positive aerotron Q101 is connected with an end of first resistance R 1, an end of second resistance R 2, the base stage of the second positive-negative-positive aerotron Q102 is connected with an end of the 5th resistance R 5, an end of the 6th resistance R 6, the base stage of the one NPN type aerotron Q201 is connected with an end of an end of the 3rd resistance R 3, the 4th resistance R 4, and the base stage of the 2nd NPN type aerotron Q202 is connected with an end of an end of the 7th resistance R 7, the 8th resistance R 8; The other end of the emitter of the emitter of the first positive-negative-positive aerotron Q101, the second positive-negative-positive aerotron Q102, the other end of first resistance R 1, the 5th resistance R 5 all is connected with the positive pole of automotive battery, the other end of the emitter of the emitter of the one NPN type aerotron Q201, the 2nd NPN type aerotron Q202, the other end of the 4th resistance R 4, the 8th resistance R 8 all is connected with the negative pole of automotive battery 1, the other end of the 3rd resistance R 3 is connected with the P60 pin of micro controller system EM78P153, and the other end of the 7th resistance R 7 is connected with the P61 pin of micro controller system EM78P153; The collecting electrode of the collecting electrode of the other end of the 6th resistance R 6, the first positive-negative-positive aerotron Q101, a NPN type aerotron Q201, the end of the 3rd filter capacitor C3 all are connected with an input end of DC machine 2, and the collecting electrode of the collecting electrode of the other end of second resistance R 2, the second positive-negative-positive aerotron Q102, the 2nd NPN type aerotron Q202, the other end of the 3rd filter capacitor C3 all are connected with another input end of DC machine 2.
The working process of this circuit is as follows:
By micro controller system EM78P153 control, when far and near light change-over swith S3 common port mediated, the P60 pin of micro controller system EM78P153 and P61 pin were all exported low Gao Ping, and DC machine is not changeed; When far and near light change-over swith S3 common port turns to P65 pin (being high-beam condition), this moment micro controller system EM78P153 P65 pin input low level, P60 pin output high level, P61 output low level, the second positive-negative-positive aerotron Q102 and a NPN type aerotron Q201 conducting, the first positive-negative-positive aerotron Q101 and the 2nd NPN type aerotron Q202 end, DC machine is just changeed, fluorescent tube is protruding, after meeting the spacing contact switch S2 of distance light on the light fixture, motor stall, and the position of pinning fluorescent tube by mechanical device; When far and near light change-over swith S3 turns to P64 pin (being the dipped beam state), this moment micro controller system EM78P153 P64 pin input low level, P60 pin output low level, P61 pin output high level, NP type aerotron Q101 and the 2nd NPN type aerotron Q202 conducting, the second positive-negative-positive aerotron Q102 and a NPN type aerotron Q201 end, DC machine counter-rotating, the inside indentation of fluorescent tube, after meeting the spacing contact switch S1 of dipped beam, the motor stall.From above-mentioned principle of work as can be known, the DC machine in the utility model only gets electric work in the far and near light conversion of automobile front moment, therefore the utlity model has little, the high reliability features of power consumption.
Claims (1)
1. a near light and far light control circuit of automotive headlamp comprises micro controller system EM78P153, three-terminal voltage-stabilizing circuit, full bridge power driving circuit, it is characterized in that:
The end of the spacing contact switch S1 of dipped beam is connected with the P62 pin of micro controller system EM78P153, the end of the spacing contact switch S2 of distance light is connected with the P63 pin of micro controller system EM78P153, two contacts of far and near light change-over swith S3 are connected with the P65 pin with the P64 pin of micro controller system EM78P153 respectively, and the GND pin of the other end of the spacing contact switch S2 of the other end, distance light of the spacing contact switch S1 of dipped beam, the common port of far and near light change-over swith S3 and micro controller system EM78P153 all is connected with the negative pole of automotive battery;
The three-terminal voltage-stabilizing circuit comprises three terminal regulator U1, the first filter capacitor C1 and the second filter capacitor C2; The Vout end of three terminal regulator U1, the end of the first filter capacitor C1 are connected with the Vcc pin of micro controller system EM78P153, the Vin end of three terminal regulator U1, the end of the second filter capacitor C2 are connected with the positive pole of automotive battery, and the other end of the other end of the first filter capacitor C1, the second filter capacitor C2 and the GND pin of three terminal regulator U1 all are connected with the negative pole of automotive battery;
The full bridge power driving circuit comprises the first positive-negative-positive aerotron Q101, the second positive-negative-positive aerotron Q102, a NPN type aerotron Q201, the 2nd NPN type aerotron Q202, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 3rd filter capacitor C3; The base stage of the first positive-negative-positive aerotron Q101 is connected with an end of first resistance R 1, an end of second resistance R 2, the base stage of the second positive-negative-positive aerotron Q102 is connected with an end of the 5th resistance R 5, an end of the 6th resistance R 6, the base stage of the one NPN type aerotron Q201 is connected with an end of an end of the 3rd resistance R 3, the 4th resistance R 4, and the base stage of the 2nd NPN type aerotron Q202 is connected with an end of an end of the 7th resistance R 7, the 8th resistance R 8; The other end of the emitter of the emitter of the first positive-negative-positive aerotron Q101, the second positive-negative-positive aerotron Q102, the other end of first resistance R 1, the 5th resistance R 5 all is connected with the positive pole of automotive battery, the other end of the emitter of the emitter of the one NPN type aerotron Q201, the 2nd NPN type aerotron Q202, the other end of the 4th resistance R 4, the 8th resistance R 8 all is connected with the negative pole of automotive battery, the other end of the 3rd resistance R 3 is connected with the P60 pin of micro controller system EM78P153, and the other end of the 7th resistance R 7 is connected with the P61 pin of micro controller system EM78P153; The collecting electrode of the collecting electrode of the other end of the 6th resistance R 6, the first positive-negative-positive aerotron Q101, a NPN type aerotron Q201, the end of the 3rd filter capacitor C3 all are connected with an input end of DC machine, and the collecting electrode of the collecting electrode of the other end of second resistance R 2, the second positive-negative-positive aerotron Q102, the 2nd NPN type aerotron Q202, the other end of the 3rd filter capacitor C3 all are connected with another input end of DC machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202000636U CN201520248U (en) | 2009-11-16 | 2009-11-16 | Far and near light control circuit of automobile headlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202000636U CN201520248U (en) | 2009-11-16 | 2009-11-16 | Far and near light control circuit of automobile headlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520248U true CN201520248U (en) | 2010-07-07 |
Family
ID=42506427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202000636U Expired - Lifetime CN201520248U (en) | 2009-11-16 | 2009-11-16 | Far and near light control circuit of automobile headlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704352B (en) * | 2009-11-16 | 2011-11-30 | 杭州电子科技大学 | Near light and far light control circuit of automotive headlamp |
| CN104228666A (en) * | 2014-10-16 | 2014-12-24 | 卢颖钰 | Car lamp far-near light switching control circuit |
-
2009
- 2009-11-16 CN CN2009202000636U patent/CN201520248U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704352B (en) * | 2009-11-16 | 2011-11-30 | 杭州电子科技大学 | Near light and far light control circuit of automotive headlamp |
| CN104228666A (en) * | 2014-10-16 | 2014-12-24 | 卢颖钰 | Car lamp far-near light switching control circuit |
| CN104228666B (en) * | 2014-10-16 | 2017-02-15 | 卢颖钰 | Car lamp far-near light switching control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101704352B (en) | Near light and far light control circuit of automotive headlamp | |
| CN102410458B (en) | LED daylight lamp device capable of directly replacing fluorescent lamp | |
| CN201467512U (en) | Light emitting diode (LED) illumination driving device for vehicles and ships | |
| CN201520248U (en) | Far and near light control circuit of automobile headlight | |
| CN2886978Y (en) | 24V and 12V universal LED functional bulb for automobile | |
| CN203974665U (en) | LED automobile front distance-light conversion control circuit | |
| CN208285593U (en) | Vehicle brake lamp and Rear Position Lamp integrated drive electronics | |
| CN204681657U (en) | A kind of Sofe Switch type DC-DC conversion circuit and vehicle-mounted HID lamp ballast thereof | |
| CN201066063Y (en) | Novel vehicular far and near light xenon metal halide lamp | |
| CN204425746U (en) | Automobile brake lamp brightness regulating circuit | |
| CN202873162U (en) | Switching device for xenon lamp high voltage start circuit | |
| CN104175946A (en) | Vehicle LED headlamp high and low beam switching control circuit | |
| CN202016428U (en) | Energy-saving vehicle rear lamp | |
| CN204669657U (en) | For the control circuit of driving at night lamp and stop lamp | |
| CN210899741U (en) | LED double-light car lamp driving circuit | |
| CN205283871U (en) | Light -operated locomotive flash of light guard lamp | |
| CN202016427U (en) | Novel vehicle tail lamp | |
| CN201197207Y (en) | Signal flashing circuit for vehicle steering | |
| CN203467043U (en) | Led emergency controller | |
| CN203595053U (en) | Glaring large-power LED street lamp | |
| CN209650155U (en) | A kind of automobile understands light control circuit automatically | |
| CN201396664Y (en) | Steering LED lamp | |
| CN206136408U (en) | Shine LED lamp controlgear before car | |
| CN2804974Y (en) | Roadblock flashing lamp | |
| CN102395238B (en) | Double-Moss tube asynchronous control HID transformer frequency output apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100707 Effective date of abandoning: 20091116 |