CN107914636A - Vehicle-mounted light adjusting controller - Google Patents
Vehicle-mounted light adjusting controller Download PDFInfo
- Publication number
- CN107914636A CN107914636A CN201711378119.2A CN201711378119A CN107914636A CN 107914636 A CN107914636 A CN 107914636A CN 201711378119 A CN201711378119 A CN 201711378119A CN 107914636 A CN107914636 A CN 107914636A
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- China
- Prior art keywords
- microcontroller
- effect tube
- vehicle
- power
- field
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/80—Circuits; Control arrangements
Abstract
A kind of vehicle-mounted light adjusting controller, including：12V DC power supply：For vehicular power-bottle, for powering to other components；Touch-screen：There is light modulation icon on touch-screen, dim signal can be sent by touching light modulation icon；Microcontroller：For receiving dim signal and exporting modulated pulse signal；Field-effect tube:For N-channel field-effect tube, its output terminal connection LED light strip, field-effect tube is used to receive the pulse signal that microcontroller is sent, and adjusts output voltage according to pulse signal, and then controls the brightness of LED light strip；Power module：Power for regulating power source voltage, and to microcontroller and touch-screen；Serial communication modular：For data transfer, the dim signal that touch is sent can be transferred to microcontroller.Solve the problems, such as stepping light modulation can not meet appropriate light degree of illuminating, while solve the problems, such as light modulation occur flash.
Description
Technical field
The present invention relates to street rod electronic technology field, and in particular to a kind of vehicle-mounted light adjusting controller.
Background technology
Under the development situation that current electronic product is advanced by leaps and bounds, with the continuous improvement that people require vehicle performance,
Automotive control system increasingly hommization, intelligence, can achieve the effect that in-vehicle device the requirement that it is also proposed higher, its
Middle light plays very crucial effect in the car, under different environmental patterns, bright dark also different, user's needs of light
Different lamp light modes is used in different environments, in order to meet the control of different light, and the bright dark control of light, one
As controller light modulation occur that light flashes, the light modulating frequency higher of this light adjusting controller, parts selection is more stable, and light is trembled
Dynamic situation is changed.
The content of the invention
The object of the present invention is to provide a kind of vehicle-mounted light adjusting controller, and appropriate light degree of illuminating can not be met by solving stepping light modulation
The problem of, at the same solve the problems, such as light modulation occur flash.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of vehicle-mounted light adjusting controller, it is characterized in that：Including：
12V DC power supply：For vehicular power-bottle, for powering to other components；
Touch-screen：There is light modulation icon on touch-screen, dim signal can be sent by touching light modulation icon；
Microcontroller：For receiving dim signal and exporting modulated pulse signal；
Field-effect tube:For N-channel field-effect tube, its output terminal connection LED light strip, field-effect tube is sent for receiving microcontroller
Pulse signal, and according to pulse signal adjust output voltage, and then control LED light strip brightness；
Power module：Power for regulating power source voltage, and to microcontroller and touch-screen；
Serial communication modular：For data transfer, the dim signal that touch is sent can be transferred to microcontroller.
Power through the above technical solutions, vehicular power-bottle can be other components, people is clicked on light modulation button by touch-screen
Analog signal is converted to digital signal, and controller single-chip microcomputer is sent to by serial ports, microcontroller by the signal instruction that receives,
Drain electrode to control field-effect tube exports PWM modulation pulse, controls pulse duty factor, the size of output voltage is adjusted, so as to reach
To the effect of control LED light strip brightness.
The present invention is further arranged to：The N-channel field-effect tube is high-speed switch power tube, its pin 3 connection 12V is straight
Galvanic electricity source, pin 1 and 5 connect LED light strip cathode, and light bar anode is with picking up body, the single-chip microcomputer output is connected with this
Current-limiting resistance R1 and triode Q1, triode Q1 emitter are grounded, and monolithic is connected after triode Q1 base series current-limiting resistances R2
Machine.
Through the above technical solutions, two output terminal connecting lamp strip cathodes of field-effect tube, the anode of light bar can car nearby
Body bonding, reduces the circuit that anode walks back controller, and microcontroller output PWM ripples can control the frequency that triode Q1 is turned on, lead to
The output voltage of field-effect tube can be controlled by crossing the turn-on frequency of change triode Q1.
The present invention is further arranged to：The field-effect tube pin 4 be connected with turn the divider resistance R3 that is arranged in series with
Divider resistance R4, divider resistance R3 are connected microcontroller with divider resistance R4 nodes.
Through the above technical solutions, the pin 4 of field-effect tube is current detecting pin, current detecting pin output current with
Load current is directly proportional, can play the role of monitoring current size to the current conditions of LED light are fed back to microcontroller, send out
Microcontroller can be timely fed back to during raw short circuit and reminds user.Divider resistance can play the role of partial pressure, make the electricity of feedback signal
Stream is maintained in the operating voltage range of microcontroller.
The present invention is further arranged to：Power module includes the first power circuit and second source circuit, and described second
Power circuit output pin connects microcontroller, its output pin has also been arranged in parallel a filter capacitor C1, and filter capacitor C1 is another
End ground connection.
Through the above technical solutions, filter capacitor C1 can play filter action, it can be exported with smooth direct current, make microcontroller
The voltage received tends towards stability, and avoids surge caused by power supply opening and closing from causing damage microcontroller.
The present invention is further arranged to：The field-effect tube supply voltage input pin loong shunt sets a transient state to suppress two
Pole pipe DL1, Transient Suppression Diode the DL1 other end are grounded.
Through the above technical solutions, when the two poles of the earth are subject to reverse transient state high energy impact events, Transient Suppression Diode DL1 can be with
The speed of 10 minus 12 power second-time, is changed into Low ESR by the high impedance of its two interpolar, absorbs up to thousands of watts of surge work(
Rate, makes the voltage clamp of two interpolars the precision components in electronic circuit effectively be protected, from various waves in a predetermined value
Gush the damage of pulse.
The present invention is further arranged to：The fly-wheel diode in parallel with LED light strip is provided with the field-effect tube pin 1
DL2。
Through the above technical solutions, it can prevent from turning off the light suddenly and producing big induced voltage, so as to damage circuit components.
The present invention is further arranged to：The second source circuit output end connects serial communication modular, the communication mould
Block loong shunt is provided with filter capacitor C3.
Through the above technical solutions, second source module can be powered serial communication modular, filter capacitor C3 is played
Voltage regulation filtering acts on, and makes the voltage regime that serial communication modular obtains steady.
The present invention is further arranged to：Second source circuit input end is also in series with anti-reverse diode D1, and second
Power circuit input terminal is also parallel with a zener diode D2, one filter capacitor C2 of zener diode D2 loong shunts.
Through the above technical solutions, filter capacitor C2 and zener diode D2 can make the second electricity with voltage stabilizing and filter action
The voltage of source module input is more stablized, and plays a protective role to second source module.
In conclusion the invention has the advantages that：
First, this vehicle-mounted light adjusting controller exports PWM ripples to control the output voltage of field-effect tube using microcontroller, is adjusted with this
The brightness of LED light strip, and being operated by touch-screen, it is possible to achieve multistage light modulation, and the problem of can be shaken to avoid light；
2nd, LED light cathode connection field-effect tube, anode body earth nearby, reduces the circuit that anode walks back controller；
3rd, filter capacitor and Transient Suppression Diode etc. are both provided with outside this vehicle-mounted each component of light adjusting controller, stablized
Property more preferable, light modulating frequency higher, light adjust it is smoother.
Brief description of the drawings
The vehicle-mounted light adjusting controller system principle diagrams of Fig. 1；
The vehicle-mounted light adjusting controller internal circuit schematic diagrams of Fig. 2.
In figure, 1, DC power supply；2nd, the first power circuit；3rd, second source circuit；4th, touch-screen；5th, serial communication mould
Block；6th, microcontroller；7th, field-effect tube；8th, LED light strip.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing.
As depicted in figs. 1 and 2, a kind of vehicle-mounted light adjusting controller, including 12V DC power supply 1, touch-screen 4, the first power supply electricity
Road 2, second source circuit 3, serial communication modular 5, microcontroller 6 and field-effect tube 7,12V DC power supply 1 are vehicular power-bottle,
Power supply is provided for touch-screen 4 and microcontroller 6,12V DC electricity can be converted into by the first power circuit 2 and second source circuit 3
3.3V, normal operating voltage is provided to microcontroller 6 and communication module.7 output terminal of field-effect tube connects LED light strip 8, touch-screen
Light modulation icon is provided with 4, dim signal can be sent by touching light modulation icon, and the simulation that people is clicked on light modulation button by touch-screen 4 is believed
Number digital signal is converted to, controller single-chip microcomputer 6 is sent to by serial communication modular 5, microcontroller 6 passes through the signal that receives
Instruction, to the drain electrode output modulation pulse of control field-effect tube 7, controls pulse duty factor, so that the size of output voltage is adjusted,
Reach the effect of control 8 brightness of LED light strip.
As shown in Fig. 2, touch-screen 4 is directly connected to DC12V DC power supplies 1, touch-screen 4 connects serial ports by CAN bus and leads to
Believe module 5,5 output terminal of serial communication modular connects 12 and 13 pins of microcontroller 6, the model of the microcontroller 6
STM32F103.Power module includes the first power circuit 2 and second source circuit 3, and 3 output pin of second source circuit connects
611 pin of microcontroller is connect, 3 output pin of second source circuit has also been arranged in parallel a filter capacitor C1, and filter capacitor C1 is another
End ground connection.3 input terminal of second source circuit is also in series with anti-reverse diode D1, and 3 input terminal of second source circuit is also simultaneously
It is associated with a zener diode D2, one filter capacitor C2 of zener diode D2 loong shunts.Filter capacitor C2 and zener diode D2 can
With voltage stabilizing and filter action, the voltage that second source module inputs more is stablized, play a protective role to second source module；
Filter capacitor C1 can play filter action, can be exported with smooth direct current, the voltage that microcontroller 6 receives is tended towards stability, keep away
Surge caused by power-free opening and closing causes damage microcontroller 6.
As shown in Fig. 2, the pin 1 of the first power circuit 2（That is input terminal）Couple 12V DC power supply 1, the first power circuit
2 pins 2 are grounded, 2 pin 3 of the first power circuit（That is output terminal）Communication module is coupled, 2 output terminal of the first power circuit is exportable
3.3V rated voltages, for being powered to communication module, communication module loong shunt is provided with a filter capacitor C3, filter capacitor
The C3 other ends are grounded.Filter capacitor C3 can play rectified action, can be exported with smooth direct current, the voltage for obtaining communication module
More stablize.
As shown in Fig. 2, N-channel field-effect tube 7 is high-speed switch power tube, model BTS6143, there is five pins, defeated
Enter pin 3 and connect input DC12V power supplys, output pin 1 and 5 connects 8 cathode of LED light strip, and the anode of light bar is with picking up body.Field effect
The sustained diode L2 being arranged in parallel with LED light strip 8 should be additionally provided with the output pin of pipe 7, can prevent from turning off the light and producing suddenly
Raw big induced voltage, so as to damage circuit components.The controlling switch of field-effect tube 7 is sequentially connected current-limiting resistance R1 and driving
Triode Q1, driving triode Q1 emitter are grounded, and 618 pin of microcontroller is connected after one current-limiting resistance R2 of base series.Field effect
Should pipe 7 be used to receive the pulse signal that microcontroller 6 is sent, and output voltage is adjusted according to pulse signal, and then control LED light
With 8 brightness.
As shown in Fig. 2, 7 current detecting pin of field-effect tube, which connects 4, is connected with the divider resistance R3 and partial pressure electricity being arranged in series
R4 is hindered, divider resistance R3 is connected 614 pin of microcontroller with divider resistance R4 nodes.The current detecting pin output of field-effect tube 7
Electric current is directly proportional to load current, can play monitoring current size to the current conditions of LED light are fed back to microcontroller 6
Effect, microcontroller 6 can be timely fed back to by occurring during short circuit reminds user.Divider resistance can play the role of partial pressure, make feedback
The electric current of signal is maintained in the operating voltage range of microcontroller 6.
As shown in Fig. 2, the cathode of 12V DC power supply 1 is also associated with what is be arranged in parallel with field-effect tube 7 and power module
Transient Suppression Diode DL1, its other end ground connection.When the two poles of the earth are subject to reverse transient state high energy impact events, it can be with minus the 12 of 10
The speed of power second-time, is changed into Low ESR by the high impedance of its two interpolar, absorbs up to thousands of watts of surge power, make two
The voltage clamp of interpolar effectively protects the precision components in electronic circuit, from various surge pulses in a predetermined value
Damage.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
All protected in the right of invention be subject to Patent Law.
Claims (8)
1. a kind of vehicle-mounted light adjusting controller, it is characterized in that：Including：
12V DC power supply (1)：For vehicular power-bottle, for powering to other components；
Touch-screen (4)：There is light modulation icon on touch-screen (4), dim signal can be sent by touching light modulation icon；
Microcontroller (6)：For receiving dim signal and exporting modulated pulse signal；
Field-effect tube (7):For N-channel field-effect tube (7), its output terminal connection LED light strip (8), field-effect tube (7) is used to connect
The pulse signal that microcontroller (6) is sent is received, and output voltage is adjusted according to pulse signal, and then controls the bright of LED light strip (8)
Degree；
Power module：Power for regulating power source voltage, and to microcontroller (6) and touch-screen (4)；
Serial communication modular (5)：For data transfer, the dim signal that touch is sent can be transferred to microcontroller (6).
2. a kind of vehicle-mounted light adjusting controller according to claim 1, it is characterized in that：The N-channel field-effect tube (7) is height
Fast switching power tube, its pin 3 connection 12V DC power supply (1), pin 1 and 5 connect LED light strip (8) cathode, and light bar anode is
With picking up body, microcontroller (6) output terminal is connected with current-limiting resistance R1 and triode Q1 with this, and triode Q1 emitters connect
Ground, microcontroller (6) is connected after triode Q1 base series current-limiting resistances R2.
3. a kind of vehicle-mounted light adjusting controller according to claim 1, it is characterized in that：Field-effect tube (7) pin 4 is successively
The divider resistance R3 and divider resistance R4 being arranged in series is connected with, divider resistance R3 is connected microcontroller with divider resistance R4 nodes
(6)。
4. a kind of vehicle-mounted light adjusting controller according to claim 1, it is characterized in that：The power module includes the first power supply
Circuit (2) and second source circuit (3), second source circuit (3) the output pin connection microcontroller (6), its output are drawn
Foot has also been arranged in parallel a filter capacitor C1, filter capacitor C1 other ends ground connection.
5. a kind of vehicle-mounted light adjusting controller according to claim 1, it is characterized in that：Field-effect tube (7) power input
Pin loong shunt is provided with Transient Suppression Diode DL1, Transient Suppression Diode DL1 other ends ground connection.
6. a kind of vehicle-mounted light adjusting controller according to claim 1, it is characterized in that：Set on field-effect tube (7) pin 1
It is equipped with the sustained diode L2 in parallel with LED light strip (8).
7. a kind of vehicle-mounted light adjusting controller according to claim 4, it is characterized in that：Second source circuit (3) output
End connection serial communication modular (5), serial communication modular (5) loong shunt are provided with filter capacitor C3.
8. a kind of vehicle-mounted light adjusting controller according to claim 4, it is characterized in that：Second source circuit (3) input terminal is also
Anti-reverse diode D1 is in series with, and second source circuit (3) input terminal is also parallel with a zener diode D2, two pole of voltage stabilizing
One filter capacitor C2 of pipe D2 loong shunts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711378119.2A CN107914636A (en) | 2017-12-19 | 2017-12-19 | Vehicle-mounted light adjusting controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711378119.2A CN107914636A (en) | 2017-12-19 | 2017-12-19 | Vehicle-mounted light adjusting controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107914636A true CN107914636A (en) | 2018-04-17 |
Family
ID=61893651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711378119.2A Pending CN107914636A (en) | 2017-12-19 | 2017-12-19 | Vehicle-mounted light adjusting controller |
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| Country | Link |
|---|---|
| CN (1) | CN107914636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010770A (en) * | 2020-01-08 | 2020-04-14 | 江西省永亮照明电器有限公司 | Lighting lamp dimming system |
| CN112272429A (en) * | 2020-10-26 | 2021-01-26 | 兰普电器股份有限公司 | Light source driver |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981052A (en) * | 2014-07-16 | 2015-10-14 | 厦门兴恒隆照明科技有限公司 | Touch-sensitive constant-current dimming controller used for LED light source |
| CN207737194U (en) * | 2017-12-19 | 2018-08-17 | 车质尚（北京）汽车制造有限公司 | Vehicle-mounted light adjusting controller |
-
2017
- 2017-12-19 CN CN201711378119.2A patent/CN107914636A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981052A (en) * | 2014-07-16 | 2015-10-14 | 厦门兴恒隆照明科技有限公司 | Touch-sensitive constant-current dimming controller used for LED light source |
| CN207737194U (en) * | 2017-12-19 | 2018-08-17 | 车质尚（北京）汽车制造有限公司 | Vehicle-mounted light adjusting controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010770A (en) * | 2020-01-08 | 2020-04-14 | 江西省永亮照明电器有限公司 | Lighting lamp dimming system |
| CN112272429A (en) * | 2020-10-26 | 2021-01-26 | 兰普电器股份有限公司 | Light source driver |
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