CN105491729A - Automobile indoor atmosphere lamp light modulation circuit - Google Patents
Automobile indoor atmosphere lamp light modulation circuit Download PDFInfo
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- CN105491729A CN105491729A CN201610046507.XA CN201610046507A CN105491729A CN 105491729 A CN105491729 A CN 105491729A CN 201610046507 A CN201610046507 A CN 201610046507A CN 105491729 A CN105491729 A CN 105491729A
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- interrupteur
- atmosphere lamp
- brightness
- switch
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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]
-
- 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]
Landscapes
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to technical field of automobile indoor lamp light modulation and especially relates to an automobile indoor atmosphere lamp light modulation circuit. The automobile indoor atmosphere lamp light modulation circuit comprises a PWM pulse generation unit and a brightness adjusting unit. The PWM pulse generation unit is connected with a central console. The central console is used for adjusting the duty ratio of the PWM pulse generation unit. The PWM pulse generation unit generates corresponding PWM brightness adjusting pulses according to the duty ratio. The brightness adjusting unit adjusts the brightness of an atmosphere lamp by means of the PWM brightness adjusting pulses. According to the invention, a user can control the brightness of the atmosphere lamp to change in a certain range in real time through central console touch screen software when using the automobile indoor atmosphere lamp light modulation circuit, and the function of indoor atmosphere adjustment is realized.
Description
Technical field
The present invention relates to LED light regulating technology field, especially car room atmosphere lamp light regulating technology.
Background technology
In car, atmosphere lamp is the abbreviation of flexible high-brightness astigmatism optical fiber LED atmosphere lamp.It belongs to the illuminating lamp of decorative kind, normally red, blue, green etc., mainly for making compartment more gorgeous when night, setting off atmosphere in car by contrast, strengthening stimulus to the sense organ, improves car steering and experiences, prompting car load class.In car, the main material of atmosphere lamp is LED.White light LEDs is more and more used in automotive electronics as light source, and along with the progress in epoch, people require to improve constantly to electronic product, and many clients wish that light source brightness in different application occasion can regulate.Current light regulating technology mainly contains three kinds: PWM light modulation, simulation light modulation and digital dimming.
PWM and pulse-width modulation utilize the numeral of microprocessor to export the very effective technology of one controlled analog circuit, is widely used in from measurement, the power that communicates control and many fields such as conversion and LED illumination.He utilizes repeatedly switching LED driver to realize dimming function, the system of application person only needs to provide wide, narrow different digital type pulse, can realize simply changing output current, thus regulate the brightness of white light LEDs, but existing automobile room lamp can not realize not only being controlled to do illumination fast by user to be used but also can control to do atmosphere lamp with environment change by car running computer and use.
Summary of the invention
The object of the invention is the defect overcoming prior art existence, provide a kind of atmosphere lamp brightness adjustment scope large and the car room atmosphere lamp light adjusting circuit that regulating measure is various.
In order to realize object of the present invention, the technical scheme adopted is:
Car room atmosphere lamp light adjusting circuit of the present invention comprises pwm pulse generating unit and brightness adjusting unit, described pwm pulse generating unit connects console, described console is for regulating the duty ratio of pwm pulse generating unit, described pwm pulse generating unit generates the pulse of corresponding PWM brightness regulation according to duty ratio, and described brightness adjusting unit is by the brightness of described PWM brightness regulation pulse regulation atmosphere lamp.
In brightness adjusting unit of the present invention, one end of resistance R3 is connected to described pwm pulse generating unit, other one end of described resistance R3 and electric capacity C3, one end of resistance R4 is connected with the base stage of NPN type triode Q1, other one end ground connection of described electric capacity C3, other one end ground connection of described resistance R4, the grounded emitter of described NPN type triode Q1, the collector electrode of described NPN type triode Q1 is connected with the anode of diode D11, the collector electrode of described NPN type triode Q1 is connected with the current output terminal of atmosphere lamp simultaneously, one end of the negative electrode connecting valve SW6 of described diode D11, other one end of described interrupteur SW 6 connects blocking circuit or ground connection.
Resistance R3 of the present invention is connected with described pwm pulse generating unit by Pin7, when described interrupteur SW 6 connects blocking circuit, described pwm pulse generating unit controls NPN type triode Q1 switch by the pwm signal of Pin7 incoming frequency 200HZ, 12V, and coordinate console to send to the duty cycle adjustment atmosphere lamp brightness of pwm pulse generating unit, during described interrupteur SW 6 ground connection, atmosphere lamp is entirely bright with 100% brightness.
Interrupteur SW 6 of the present invention is single-pole double-throw switch (SPDT), the power input of described interrupteur SW 6 is connected with the negative electrode of described diode D11, first output of described interrupteur SW 6 is connected with described blocking circuit, second output head grounding of described interrupteur SW 6, when the power input of described interrupteur SW 6 is connected with the first output of described interrupteur SW 6, interrupteur SW 6 is connected blocking circuit, interrupteur SW 6 ground connection when the power input of described interrupteur SW 6 is connected with the second output of described interrupteur SW 6.
Atmosphere lamp light adjusting circuit of the present invention also comprises reading lamp control unit, described reading lamp control unit connects gate controlled switch, two reading lamps in left and right control light on and off respectively by interrupteur SW 3 and interrupteur SW 4, described interrupteur SW 3 is connected described gate controlled switch respectively with interrupteur SW 4 switch, described interrupteur SW 3 and SW4 switch acquiescence connect described gate controlled switch, and during enabling, two reading lamps are lighted automatically.
In reading lamp control unit of the present invention, interrupteur SW 3 and interrupteur SW 4 are single-pole double-throw switch (SPDT), the power input of described interrupteur SW 3 is connected with left reading lamp, the power input of described interrupteur SW 4 is connected with right reading lamp, described interrupteur SW 3 is connected with the power input of master switch SW2 through diode D9 with the first output of interrupteur SW 4, second output of described interrupteur SW 3 and interrupteur SW 4 is through diode D10 ground connection, described master switch SW2 is also single-pole double-throw switch (SPDT), first output of described master switch SW2 is connected with the first output of described interrupteur SW 6, second output head grounding of described master switch SW2.
Atmosphere lamp light adjusting circuit of the present invention also comprises background light unit, and one end of described background light unit connects bias light positive pole, other one end ground connection of described background light unit.
Car room atmosphere lamp light adjusting circuit of the present invention has the following advantages: car room atmosphere lamp light adjusting circuit of the present invention comprises pwm pulse generating unit and brightness adjusting unit, pwm pulse generating unit connects console, console is for regulating the duty ratio of pwm pulse generating unit, pwm pulse generating unit generates the pulse of corresponding PWM brightness regulation according to duty ratio, brightness adjusting unit is by the brightness of PWM brightness regulation pulse regulation atmosphere lamp, such user is by console touch-screen software, the brightness of real-time control atmosphere lamp changes within the specific limits, reach the function regulating atmosphere in car.
In addition, in brightness adjusting unit, one end of resistance R3 is connected to pwm pulse generating unit, other one end of resistance R3 and electric capacity C3, one end of resistance R4 is connected with the base stage of NPN type triode Q1, other one end ground connection of electric capacity C3, other one end ground connection of resistance R4, the grounded emitter of NPN type triode Q1, the collector electrode of NPN type triode Q1 is connected with the anode of diode D11, the collector electrode of NPN type triode Q1 is connected with the current output terminal of atmosphere lamp simultaneously, the negative electrode connecting valve SW6 of diode D11, interrupteur SW 6 connects blocking circuit or ground connection, can light atmosphere lamp by interrupteur SW 6 when needs throw light on makes atmosphere lamp brightness entirely bright.
Atmosphere lamp brightness adjustment scope is large by the way, and regulating measure is various, can be controlled to do illumination use fast can be controlled do atmosphere lamp with environment change by car running computer again by user.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the schematic diagram of car room atmosphere lamp light adjusting circuit of the present invention;
Fig. 2 is car room atmosphere lamp light adjusting circuit figure of the present invention;
Fig. 3 is the B place local circuit enlarged drawing of the car room atmosphere lamp light adjusting circuit in Fig. 2;
Fig. 4 is the A place local circuit enlarged drawing of the car room atmosphere lamp light adjusting circuit in Fig. 2.
Wherein: console 1, pwm pulse generating unit 2, brightness adjusting unit 3, reading lamp control unit 4, background light unit 5.
Embodiment
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " setting ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
As Figure 1-4, the car room atmosphere lamp light adjusting circuit of the present embodiment, comprise pwm pulse generating unit 2 and brightness adjusting unit 3, pwm pulse generating unit 2 connects console 1, console 1 is for regulating the duty ratio of pwm pulse generating unit 2, pwm pulse generating unit 2 generates the pulse of corresponding PWM brightness regulation according to duty ratio, brightness adjusting unit 3 is by the brightness of PWM brightness regulation pulse regulation atmosphere lamp, wherein atmosphere lamp is flexible high-brightness astigmatism optical fiber LED atmosphere lamp, a LED atmosphere lamp number and the equal alterable of kind, principle is common, atmosphere lamp in the present embodiment is preferably made up of 28 LEDs atmosphere lamp AL1-AL28, 28 LEDs atmosphere lamps connect the positive voltage of 1V.
As shown in Figures 2 and 4, each Pin pin definition of the input of car room atmosphere lamp light adjusting circuit is respectively Pin1KL30G interface pin and VCC; Pin2 anti-glare signaling interface pin; Pin358S bias light anode interface pin; Pin4GND interface pin; Reading lamp control signal interface pin after Pin5; Pin6 gate-control signal interface pin; Pin7PWM impulse generating unit 2 interface pin.
Fig. 3 shows the circuit diagram of brightness adjusting unit, composition graphs 2 and 4, in brightness adjusting unit 3, one end of resistance R3 is connected to pwm pulse generating unit 2, other one end of resistance R3 and electric capacity C3, one end of resistance R4 is connected with the base stage of NPN type triode Q1, other one end ground connection of electric capacity C3, other one end ground connection of resistance R4, the grounded emitter of NPN type triode Q1, the collector electrode of NPN type triode Q1 is connected with the anode of diode D11, the collector electrode of NPN type triode Q1 is connected with the current output terminal of atmosphere lamp simultaneously, the current output terminal of atmosphere lamp connects the anode of diode D11 simultaneously, the negative electrode connecting valve SW6 of diode D11, interrupteur SW 6 connects blocking circuit or ground connection, embodiment is as follows, interrupteur SW 6 is single-pole double-throw switch (SPDT), the power input of interrupteur SW 6 is connected with the negative electrode of diode D11, first output of interrupteur SW 6 is connected with blocking circuit, this blocking circuit cannot On current, if but interrupteur SW 6 needs and other control switchs are combined when realizing dual control, this blocking circuit can be connected with other single-pole double-throw switch (SPDT)s, this blocking circuit is by other single-pole double-throw switch (SPDT) turning circuits, thus realize the dual control of atmosphere lamp.Second output head grounding of interrupteur SW 6, when the power input of interrupteur SW 6 is connected with the first output of interrupteur SW 6, interrupteur SW 6 is connected blocking circuit, interrupteur SW 6 ground connection when the power input of interrupteur SW 6 is connected with the second output of interrupteur SW 6.
Resistance R3 is connected with pwm pulse generating unit 2 by Pin7, when interrupteur SW 6 connects blocking circuit, the current circuit of atmosphere lamp disconnects, the circuit of atmosphere lamp has to pass through triode and could form current circuit, and pwm pulse generating unit 2 is by Pin7 incoming frequency 200HZ, the pwm signal of 12V controls NPN type triode Q1 switch, NPN type triode Q1 makes the current circuit of atmosphere lamp be switched on or switched off with the frequency of 200HZ, atmosphere lamp is with the frequency light on and off of 200HZ, console 1 is now coordinated to send to the duty ratio of pwm pulse generating unit 2, pwm pulse generating unit 2 generates the pulse of corresponding PWM brightness regulation, brightness adjusting unit 3 is by the brightness of PWM brightness regulation pulse regulation atmosphere lamp, namely the frequency of atmosphere lamp light on and off is 200HZ, and the at every turn bright time can by duty cycle adjustment, duty ratio is larger, time bright in atmosphere lamp each cycle is longer, corresponding bright is large, otherwise brightness diminishes.Such user, by console 1 touch-screen software, controls atmosphere lamp brightness in real time and changes within the specific limits, reach the function regulating atmosphere in car.
During interrupteur SW 6 ground connection, now atmosphere lamp directly just can form current circuit by interrupteur SW 6, atmosphere lamp is entirely bright with 100% brightness, such user controls atmosphere lamp by an interrupteur SW 6 and lights, brightness can be done illumination and use, and interrupteur SW 6 gives tacit consent to connection blocking circuit, regulated the brightness of atmosphere lamp under normal circumstances by brightness adjusting unit 3, atmosphere lamp can be lighted by interrupteur SW 6 when needs throw light on and make atmosphere lamp brightness entirely bright.
The car room atmosphere lamp light adjusting circuit of the present embodiment also comprises reading lamp control unit 4, reading lamp control unit 4 connects gate controlled switch, two reading lamps in left and right are respectively by interrupteur SW 3 and the light on and off of SW4 switch control rule, interrupteur SW 3 is connected gate controlled switch respectively with SW4 switch, interrupteur SW 3 and SW4 switch acquiescence connect gate controlled switch, and during enabling, two reading lamps are lighted automatically.See Fig. 2 and 4, after being provided with reading lamp car on, can by reading lamp light on and off after SW1 switch control rule.
In reading lamp control unit 4, interrupteur SW 3 and interrupteur SW 4 are single-pole double-throw switch (SPDT), the power input of interrupteur SW 3 is connected with left reading lamp, the power input of interrupteur SW 4 is connected with right reading lamp, interrupteur SW 3 is connected with the power input of master switch SW2 through diode D9 with the first output of interrupteur SW 4, second output of interrupteur SW 3 and interrupteur SW 4 is through diode D10 ground connection, wherein, first output of interrupteur SW 4 connects the anode of diode D9, the power input of master switch SW2 connects the negative electrode of diode D9, interrupteur SW 3 is connected the anode of diode D10 respectively with the second output of interrupteur SW 4, the minus earth of diode D10, interrupteur SW 3 and interrupteur SW 4 give tacit consent to connection first output, now can control light on and off by master switch SW2, if master switch SW2 disconnects, the light on and off of left and right reading lamp can be controlled respectively by interrupteur SW 3 and interrupteur SW 4.
Master switch SW2 is also single-pole double-throw switch (SPDT), first output of master switch SW2 is connected with the first output of interrupteur SW 6, second output head grounding of master switch SW2, under default conditions, interrupteur SW 6 connects blocking circuit, controls atmosphere lamp brightness by brightness control unit, but if the power input of master switch SW2 connects the second output, the blocking circuit of now interrupteur SW 6 connection is via master switch SW2 conducting, and now the return circuit connection atmosphere lamp brightness of atmosphere lamp is entirely bright.
Above-mentioned brightness adjusting unit 3 and reading lamp control unit 4 can be controlled by master switch SW2, and user controls reading lamp by total button SW2 and atmosphere lamp is lighted simultaneously, leads indoor maximum brightness.
If the power input of master switch SW2 connects the first output, form blocking circuit, now the power input of interrupteur SW 6 can second output of connecting valve SW6, brightness is regulated by brightness adjusting unit 3, interrupteur SW 3 can be connected the second output with interrupteur SW 4, open two atmosphere lamps, or, see Fig. 2, power input still connecting valve SW3 and interrupteur SW 4 first output of interrupteur SW 3 and interrupteur SW 4, and interrupteur SW 3 and interrupteur SW 4 first output are connected gate controlled switch by interrupteur SW 5, under interrupteur SW 5 connected state, two atmosphere lamps are controlled by gate controlled switch, during car door opening, two atmosphere lamps light.
As shown in Figures 2 and 4, atmosphere lamp light adjusting circuit also comprises background light unit 5, and one end of background light unit 5 connects 58S bias light positive pole, other one end ground connection of background light unit 5.
Atmosphere lamp light adjusting circuit in the present embodiment can realize following functions: when 1, opening car load position lamp, background light unit 5 is lighted, and illuminates switch; 2, two, left and right reading lamp is not lighted by interrupteur SW 3 and interrupteur SW 4; 3, user controls atmosphere lamp by interrupteur SW 6 and lights, and brightness can be done illumination and use; 4, user controls two reading lamps by master switch SW2 and atmosphere lamp is lighted simultaneously, makes indoor obtain maximum brightness; When 5, opening the door, two reading lamps are lighted automatically, and atmosphere lamp coordinates other lamp groups of car load to be controlled to light by same brightness by console 1, and this function is closed by SW5; 6, user is by console 1 touch-screen software, controls atmosphere lamp brightness in real time and changes within the specific limits, reach the function regulating atmosphere in car; 7, after being provided with reading lamp car on, can also by reading lamp light on and off after SW1 switch control rule.
Should be appreciated that specific embodiment described above only for explaining the present invention, being not intended to limit the present invention.Still be among protection scope of the present invention by spirit institute's apparent change of extending out of the present invention or change.
Claims (7)
1. a car room atmosphere lamp light adjusting circuit, it is characterized in that: comprise pwm pulse generating unit (2) and brightness adjusting unit (3), described pwm pulse generating unit (2) connects console (1), described console (1) is for regulating the duty ratio of pwm pulse generating unit (2), described pwm pulse generating unit (2) generates the pulse of corresponding PWM brightness regulation according to duty ratio, and described brightness adjusting unit (3) is by the brightness of described PWM brightness regulation pulse regulation atmosphere lamp.
2. car room atmosphere lamp light adjusting circuit according to claim 1, it is characterized in that: in described brightness adjusting unit (3), one end of resistance R3 is connected to described pwm pulse generating unit (2), other one end of described resistance R3 and electric capacity C3, one end of resistance R4 is connected with the base stage of NPN type triode Q1, other one end ground connection of described electric capacity C3, other one end ground connection of described resistance R4, the grounded emitter of described NPN type triode Q1, the collector electrode of described NPN type triode Q1 is connected with the anode of diode D11, the collector electrode of described NPN type triode Q1 is connected with the current output terminal of atmosphere lamp simultaneously, the current output terminal of atmosphere lamp connects the anode of diode D11 simultaneously, one end of the negative electrode connecting valve SW6 of described diode D11, other one end of described interrupteur SW 6 connects blocking circuit or ground connection.
3. car room atmosphere lamp light adjusting circuit according to claim 2, it is characterized in that: described resistance R3 is connected with described pwm pulse generating unit (2) by Pin7, when described interrupteur SW 6 connects blocking circuit, described pwm pulse generating unit (2) controls NPN type triode Q1 switch by the pwm signal of Pin7 incoming frequency 200HZ, 12V, and coordinate console (1) to send to the duty cycle adjustment atmosphere lamp brightness of pwm pulse generating unit (2), during described interrupteur SW 6 ground connection, atmosphere lamp is entirely bright with 100% brightness.
4. car room atmosphere lamp light adjusting circuit according to claim 3, it is characterized in that: described interrupteur SW 6 is single-pole double-throw switch (SPDT), the power input of described interrupteur SW 6 is connected with the negative electrode of described diode D11, first output of described interrupteur SW 6 is connected with described blocking circuit, second output head grounding of described interrupteur SW 6, when the power input of described interrupteur SW 6 is connected with the first output of described interrupteur SW 6, interrupteur SW 6 is connected blocking circuit, interrupteur SW 6 ground connection when the power input of described interrupteur SW 6 is connected with the second output of described interrupteur SW 6.
5. car room atmosphere lamp light adjusting circuit according to claim 4, it is characterized in that: described atmosphere lamp light adjusting circuit also comprises reading lamp control unit (4), described reading lamp control unit (4) connects gate controlled switch, two reading lamps in left and right control light on and off respectively by interrupteur SW 3 and interrupteur SW 4, described interrupteur SW 3 is connected described gate controlled switch respectively with interrupteur SW 4 switch, described interrupteur SW 3 and SW4 switch acquiescence connect described gate controlled switch, and during enabling, two reading lamps are lighted automatically.
6. car room atmosphere lamp light adjusting circuit according to claim 5, it is characterized in that: in described reading lamp control unit (4), interrupteur SW 3 and interrupteur SW 4 are single-pole double-throw switch (SPDT), the power input of described interrupteur SW 3 is connected with left reading lamp, the power input of described interrupteur SW 4 is connected with right reading lamp, described interrupteur SW 3 is connected with the power input of master switch SW2 through diode D9 with the first output of interrupteur SW 4, second output of described interrupteur SW 3 and interrupteur SW 4 is through diode D10 ground connection, described master switch SW2 is also single-pole double-throw switch (SPDT), first output of described master switch SW2 is connected with the first output of described interrupteur SW 6, second output head grounding of described master switch SW2.
7. car room atmosphere lamp light adjusting circuit according to claim 5, it is characterized in that: described atmosphere lamp light adjusting circuit also comprises background light unit (5), one end of described background light unit (5) connects bias light positive pole, other one end ground connection of described background light unit (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610046507.XA CN105491729B (en) | 2016-01-22 | 2016-01-22 | A kind of car room atmosphere lamp light adjusting circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610046507.XA CN105491729B (en) | 2016-01-22 | 2016-01-22 | A kind of car room atmosphere lamp light adjusting circuit |
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| CN105491729A true CN105491729A (en) | 2016-04-13 |
| CN105491729B CN105491729B (en) | 2017-12-08 |
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| CN105813264A (en) * | 2016-04-21 | 2016-07-27 | 鹤壁市华美电气有限公司 | Rhythm atmosphere lamp |
| CN108966468A (en) * | 2018-09-11 | 2018-12-07 | 河南天海电子科技有限公司 | A kind of atmosphere lamp control circuit based on microcontroller on automobile BCM |
| CN113022436A (en) * | 2019-12-09 | 2021-06-25 | 观致汽车有限公司 | Early warning reminding method and device based on atmosphere lamp and vehicle |
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