CN108263284A - Outside rear-view mirror driving circuit in electronics automatic anti-glare - Google Patents
Outside rear-view mirror driving circuit in electronics automatic anti-glare Download PDFInfo
- Publication number
- CN108263284A CN108263284A CN201810263846.2A CN201810263846A CN108263284A CN 108263284 A CN108263284 A CN 108263284A CN 201810263846 A CN201810263846 A CN 201810263846A CN 108263284 A CN108263284 A CN 108263284A
- Authority
- CN
- China
- Prior art keywords
- glare
- view mirror
- outside rear
- reduction voltage
- mcu controllers
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/04—Rear-view mirror arrangements mounted inside vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/062—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
- B60R1/07—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
Outside rear-view mirror driving circuit in electronics automatic anti-glare is related to outside rear-view mirror technical field in the electronics automatic anti-glare of automobile.Solving existing automatic anti-glare rearview mirror, there are power utilization rate is low, power consumption is big, device heating amount is big, the technical deficiencies such as output voltage less stable, includes MCU controllers, power circuit and connects the ambient light sensor of MCU controllers respectively, dazzles the eyes optical sensor and reversing circuit；Power circuit uses two-stage DC DC reduction voltage circuits, the feedback input end FB connection divider resistances R24 of second level DC DC reduction voltage circuits, the partial pressure value for changing divider resistance R24 is controlled by MCU controllers, change the output voltage of second level DC DC reduction voltage circuits by way of changing feedback input end FB feedback voltages, it is final to realize outside rear-view mirror discoloration depth adjustment in anti-glare.Cost is not only saved, greatly improves the utilization rate of chip, power supply conversion efficiency is high, and highest can reach 95%.Calorific value is small, small power consumption, output voltage stabilization.
Description
Technical field
The present invention relates to outside rear-view mirror technical fields in the electronics automatic anti-glare of automobile.
Background technology
Existing automatic anti-glare rearview mirror, such as Gentex Corp -- patent No. application publication number (CN
104968522 A) electronics automatic anti-glare in outside rear-view mirror Voltag driving circuit be to be controlled using pulse width modulating signal
System is added in the voltage inside and outside anti-dazzle driving mirror both ends, so as to change the light transmittance of inside and outside anti-dazzle driving mirror.Circuit drives electricity
It route MCU, amplifier, power resistor and power MOS pipe or power triode composition.The G poles or B poles of MOS or triode are by MCU's
PWM feet control, and adjust the duty ratio of pulse width modulating signal to control the time of the on or off of MOS or triode,
So as to adjust output voltage.This circuit there are the shortcomings that：Power utilization rate is low, and power consumption is big, and device heating amount is big, output voltage
Less stable is high to the power requirement of device.
Invention content
In conclusion it is an object of the invention to solve existing automatic anti-glare rearview mirror there are power utilization rate is low,
Power consumption is big, and device heating amount is big, the technical deficiencies such as output voltage less stable, and after proposing inside and outside a kind of electronics automatic anti-glare
Visor driving circuit.
To solve the technical issues of proposed by the invention, the technical solution that uses for：
Outside rear-view mirror driving circuit in electronics automatic anti-glare includes the MCU of outside rear-view mirror discoloration depth in control anti-glare
Controller, for vehicle-mounted out-put supply to be converted into the power circuit of outside rear-view mirror working power in MCU controllers and anti-glare,
And respectively connection MCU controllers for the ambient light sensor of environment light detection, for the dazzling light of light detection to be dazzle the eyes to pass
Sensor and the reversing circuit for astern signal detection；It is characterized in that：The power circuit includes first order DC-DC drops
Volt circuit and second level DC-DC reduction voltage circuits；
First order DC-DC reduction voltage circuits, for vehicle-mounted out-put supply to be converted into voltage needed for the work of MCU controllers；
Second level DC-DC reduction voltage circuits connect MCU controllers and first order DC-DC reduction voltage circuits, for according to MCU controllers
First order DC-DC reduction voltage circuits output voltage is further depressurized to outside rear-view mirror work institute in anti-glare by the control signal of output
It needs in voltage range.
The second level DC-DC reduction voltage circuits include power supply chip U3, the enabled input terminal EN of power supply chip U3 with
One of I/O mouthfuls of connections of MCU controllers, the output switching terminal SW of power supply chip U3 connect output voltage terminal through inductance L1
VOUT, output voltage connect and are additionally provided with storage capacitor between end VOUT and ground, and the OUT feet of power supply chip U3 meet output voltage terminal VOUT
With divider resistance R24, between divider resistance R24 and ground and different resistance values more than two are connected to, were connected by the control of MCU controllers
The transistor switching circuit of disconnection, feedback input end FB connection divider resistance R24 and each triode switch electricity of power supply chip U3
Road common end.
The vehicle-mounted out-put supply of 9-36V is down to 5V outputs, second level DC-DC by the first order DC-DC reduction voltage circuits
The 5V that first order DC-DC reduction voltage circuits export is down in the range of 0.6V to 1.2V and exports to backsight inside and outside anti-glare by reduction voltage circuit
Mirror controls outside rear-view mirror discoloration depth in anti-glare.
It is additionally provided between outside rear-view mirror in the MCU controllers and anti-glare in second level DC-DC reduction voltage circuits not work
The discharge circuit of electric discharge colour fading is carried out when making to outside rear-view mirror in anti-glare.
Beneficial effects of the present invention are：The power circuit of the present invention is using two-stage DC-DC reduction voltage circuits, first order DC-DC
Vehicle-mounted out-put supply is converted into voltage needed for the work of MCU controllers by reduction voltage circuit；And the feedback of second level DC-DC reduction voltage circuits
Input terminal FB connection divider resistance R24 are controlled the partial pressure value for changing divider resistance R24 by MCU controllers, defeated by changing feedback
Enter to hold the mode of FB feedback voltages and change the output voltage of second level DC-DC reduction voltage circuits, first order DC-DC reduction voltage circuits
The 5V voltages of output drop to the value that 0.6-1.2V needed for outside rear-view mirror work is different in anti-glare, after final realization anti-glare is inside and outside
Visor discoloration depth adjustment.The present invention not only saves cost, greatly improves the utilization rate of chip, and power supply conversion efficiency is high,
Highest can reach 95%.Calorific value is small, small power consumption, output voltage stabilization.Their current peak electric current reached 350mA in the past, put down
Equal circuit is up to 120mA, and voltage output is unstable, if particularly having sublevel ladder output demand, than relatively difficult to achieve;It is and of the invention
Power consumption peaks there was only 55mA, average current only has 29mA, and voltage output is highly stable, and ladder output stage is easy to implement.
Description of the drawings
Fig. 1 is the circuit theory block diagram of the present invention；
Fig. 2 is the circuit diagram of the first order DC-DC reduction voltage circuits of the present invention；
Fig. 3 is the circuit diagram of the second level DC-DC reduction voltage circuits of the present invention；
Fig. 4 is the circuit diagram for dazzling the eyes sensor of the present invention；
Fig. 5 is the circuit diagram of the ambient light sensor of the present invention；
Fig. 6 is the circuit diagram for the discharge circuit to fade that discharges of the present invention；
Fig. 7 is the circuit diagram of the reversing detection circuit of the present invention.
Specific embodiment
The structure of the present invention is further described below in conjunction with attached drawing and currently preferred specific embodiment.
With reference to shown in Fig. 1, outside rear-view mirror driving circuit in electronics automatic anti-glare of the invention, for driving anti-glare
Interior outside rear-view mirror, when vehicle in the process of moving, sense front vehicle light irradiation different light intensity, then with ambient light sensor produce
Raw AD values compare, and the depth that changes colour to outside rear-view mirror in anti-glare are realized by changing output voltage values, so as to automatically adjust
The reflectivity of outside rear-view mirror in anti-glare is saved, to provide the best reflectivity of driver, automatic anti-glare promotes driving safety.
Outside rear-view mirror driving circuit includes in the electronics automatic anti-glare of the present invention：Backsight inside and outside connection control anti-glare
Mirror becomes the MCU controllers of color depth, works for vehicle-mounted out-put supply to be converted into outside rear-view mirror in MCU controllers and anti-glare
The power circuit of power supply and respectively connection MCU controllers for the ambient light sensor of environment light detection, for dazzling light
Optical sensor and the reversing circuit detected for astern signal are dazzle the eyes in detection.
Shown in Fig. 3, power circuit includes protection circuit, first order DC-DC reduction voltage circuits and the second level
DC-DC reduction voltage circuits.The vehicle-mounted out-put supply of 9-36V is through protecting circuit connection first order DC-DC reduction voltage circuits, through the first order
The vehicle-mounted out-put supply of 9-36V is converted into the 5V voltages needed for the work of MCU controllers by DC-DC reduction voltage circuits.Second level DC-DC
Reduction voltage circuit connects MCU controllers and first order DC-DC reduction voltage circuits, and the control signal for being exported according to MCU controllers will
First order DC-DC reduction voltage circuits output voltage is further depressurized in anti-glare needed for outside rear-view mirror work in voltage range.
Circuit as shown in Figure 3, second level DC-DC decompression electricity may be used in second level DC-DC reduction voltage circuit concrete structures
Road includes power supply chip U3, and the enabled input terminal EN of power supply chip U3 passes through P3 ends and one of I/O mouthfuls of MCU controllers
Connection, when P3 ends are high level, the Enable Pin EN of power supply chip U3 is height, and power supply chip U3 enters operating mode at this time, defeated
Go out voltage end VOUT=0.6V.
The output switching terminal SW of power supply chip U3 meets output voltage terminal VOUT through inductance L1, and output voltage meets end VOUT and ground
Between be additionally provided with storage capacitor C14 and storage capacitor C4, that is to say inductance L1, storage capacitor C14 and storage capacitor C4 composition groups
Into accumulator.
The OUT feet of power supply chip U3 meet output voltage terminal VOUT and divider resistance R24, between divider resistance R24 and ground simultaneously
Different resistance values more than two are connected to, and the transistor switching circuit disconnected was connected by the control of MCU controllers, power supply chip U3's
Feedback input end FB connection divider resistance R24 and each transistor switching circuit common end.With divider resistance R24 and ground in Fig. 3
Between be equipped with two groups of transistor switching circuits for illustrate.Wherein, first group of transistor switching circuit is by electricity group R3, resistance R12, three
Pole pipe Q3 and resistance R25 are formed, and resistance R3 connects P1 ends, one I/O mouthfuls of P1 termination MCU controllers, when P1 ends and P3 ends simultaneously
When exporting high level, triode Q3 works in saturation conduction state, divider resistance R24, resistance R25, triode Q3, R3, R12
This partial circuit works, and the partial pressure ratio of divider resistance R24 and resistance R25 determine the corresponding electricity of output voltage terminal VOUT outputs
Pressure.Second group of transistor switching circuit is made of electricity group R22, resistance R15, triode Q1 and resistance R8, and electricity group R22 connects P2 ends,
One I/O mouthfuls of P2 termination MCU controllers, when P1 ends export low level, when P2 ends and P3 ends export high level simultaneously, triode
Q1 works in saturation conduction state, divider resistance R24, resistance R8, triode Q1, resistance R22, this partial circuit work of resistance R15
Make, the partial pressure ratio of divider resistance R24 and resistance R8 determine that output voltage terminal VOUT exports corresponding voltage；It is same former
Reason can connect countless this different resistance value transistor switching circuits, and the resistance value of divider resistance R24 immobilizes, resistance
R25, resistance R8...RN... take different values, and feedback input end FB obtains different voltage values, so as to make output voltage terminal
VOUT obtains different voltage values, second level DC-DC reduction voltage circuits is made to export corresponding voltage, output voltage is different, anti-glare
Interior outside rear-view mirror discoloration depth changes.
With reference to shown in Fig. 4 and Fig. 5, for the ambient light sensor of environment light detection and for dazzling the eyes dazzling the eyes for light detection
Optical sensor operation principle：When vehicle in the process of moving, sense front vehicle light irradiation light intensity.Different light intensity, it is photosensitive
Diode D1 forms photoelectric current of different strengths and weaknesses, flows through resistance R7 and generates the AD mouths that a voltage value is sent to MCU controls.Ambient light
The intensity of sensor sensing vehicle front ambient light, different light intensity, photodiode D7 form photoelectric current of different strengths and weaknesses, stream
The AD mouths of MCU controls are sent to through resistance R5 one voltage value of generation, according to ambient light sensor and dazzle the eyes light sensing by MCU controls
After the AD values of device compare comprehensive descision, the output valve at control P1 ends, P2 ends and P3 ends ... .PN ends.
With reference to shown in Fig. 6 and Fig. 7, during due to vehicle backing, it is necessary to keep the anti-glare work(of outside rear-view mirror in anti-glare
It can close, according to the astern signal for the high level that console during vehicle backing exports so that triode Q4 is connected, and passes through INT ends
MCU controllers output low level signal is transferred to, by P3 ends down for low level, the P4 ends of discharge circuit are high level, power supply core
Piece U3 exits working condition, and voltage end VOUT outputs are 0V；Meanwhile it is added in the voltage end VOUT of outside rear-view mirror one end in anti-glare
By the metal-oxide-semiconductor Q5 of saturation conduction to voltage cathode, since internal resistance is minimum when metal-oxide-semiconductor Q5 is connected, so the velocity of discharge is very fast, greatly
The big fading time for accelerating EC mirrors.
High conversion efficiency of the present invention, efficiency is up to 95%, and small power consumption, fever is small, and device is few, can using a power supply chip
It is at low cost to export without the different voltage of array.
Claims (4)
1. outside rear-view mirror driving circuit in electronics automatic anti-glare includes outside rear-view mirror discoloration depth in control anti-glare
MCU controllers, for vehicle-mounted out-put supply to be converted into the power supply of outside rear-view mirror working power in MCU controllers and anti-glare electricity
Road and the ambient light sensor for environment light detection, the dazzling light for dazzling the eyes light detection for connecting MCU controllers respectively
Sensor and the reversing circuit for astern signal detection；It is characterized in that：The power circuit includes first order DC-DC
Reduction voltage circuit and second level DC-DC reduction voltage circuits；
First order DC-DC reduction voltage circuits, for vehicle-mounted out-put supply to be converted into voltage needed for the work of MCU controllers；
Second level DC-DC reduction voltage circuits connect MCU controllers and first order DC-DC reduction voltage circuits, for according to MCU controllers
First order DC-DC reduction voltage circuits output voltage is further depressurized to outside rear-view mirror work institute in anti-glare by the control signal of output
It needs in voltage range.
2. outside rear-view mirror driving circuit in electronics automatic anti-glare according to claim 1, it is characterised in that：Described
Two level DC-DC reduction voltage circuits include power supply chip U3, the enabled input terminal EN of power supply chip U3 and wherein the one of MCU controllers
A I/O mouthfuls of connection, the output switching terminal SW of power supply chip U3 meet output voltage terminal VOUT through inductance L1, and output voltage meets end VOUT
Storage capacitor is additionally provided between ground, the OUT feet of power supply chip U3 connect output voltage terminal VOUT and divider resistance R24, partial pressure electricity
Between resistance R24 and ground and different resistance values more than two are connected to, the triode switch electricity disconnected was connected by the control of MCU controllers
Road, feedback input end FB connection divider resistance R24 and each transistor switching circuit common end of power supply chip U3.
3. outside rear-view mirror driving circuit in electronics automatic anti-glare according to claim 1, it is characterised in that：Described
The vehicle-mounted out-put supply of 9-36V is down to 5V outputs by level-one DC-DC reduction voltage circuits, and second level DC-DC reduction voltage circuits are by the first order
The 5V of DC-DC reduction voltage circuits output is down to output in the range of 0.6V to 1.2V and, to outside rear-view mirror in anti-glare, controls in anti-glare
Outside rear-view mirror becomes color depth.
4. outside rear-view mirror driving circuit in electronics automatic anti-glare according to claim 1, it is characterised in that：Described
It is additionally provided between outside rear-view mirror in MCU controllers and anti-glare when second level DC-DC reduction voltage circuits do not work in anti-glare
Outside rear-view mirror carries out the discharge circuit of electric discharge colour fading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263846.2A CN108263284A (en) | 2018-03-28 | 2018-03-28 | Outside rear-view mirror driving circuit in electronics automatic anti-glare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263846.2A CN108263284A (en) | 2018-03-28 | 2018-03-28 | Outside rear-view mirror driving circuit in electronics automatic anti-glare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108263284A true CN108263284A (en) | 2018-07-10 |
Family
ID=62777600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810263846.2A Pending CN108263284A (en) | 2018-03-28 | 2018-03-28 | Outside rear-view mirror driving circuit in electronics automatic anti-glare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108263284A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110857058A (en) * | 2018-08-24 | 2020-03-03 | 深圳市麦道微电子技术有限公司 | Electrolytic-capacitor-free control system based on EC full-automatic anti-dazzle inner rear-view mirror |
| CN110858046A (en) * | 2018-08-23 | 2020-03-03 | 深圳市麦道微电子技术有限公司 | Control voltage output system based on EC lens |
| CN110858047A (en) * | 2018-08-23 | 2020-03-03 | 深圳市麦道微电子技术有限公司 | Control system for quick color change of EC (EC) lens during backing |
| CN112677883A (en) * | 2021-01-05 | 2021-04-20 | 爱卓智能科技(上海)有限公司 | Manufacturing method of multi-level color-changing anti-dazzling rearview mirror |
| CN113085731A (en) * | 2021-05-10 | 2021-07-09 | 宁波铝宏汽车零部件有限公司 | Control system and control method for controlling antiglare of vehicle rearview mirror |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010010595A1 (en) * | 1997-04-02 | 2001-08-02 | Hoekstra Eric J. | Digital electrochromic mirror system |
| CN2771890Y (en) * | 2005-01-31 | 2006-04-12 | 麦格纳唐纳利(上海)汽车系统有限公司 | Electro chromic rearview mirror antiglare control device |
| CN207997812U (en) * | 2018-03-28 | 2018-10-23 | 杭州星通电子科技有限公司 | Outside rear-view mirror driving circuit in electronics automatic anti-glare |
-
2018
- 2018-03-28 CN CN201810263846.2A patent/CN108263284A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010010595A1 (en) * | 1997-04-02 | 2001-08-02 | Hoekstra Eric J. | Digital electrochromic mirror system |
| CN2771890Y (en) * | 2005-01-31 | 2006-04-12 | 麦格纳唐纳利(上海)汽车系统有限公司 | Electro chromic rearview mirror antiglare control device |
| CN207997812U (en) * | 2018-03-28 | 2018-10-23 | 杭州星通电子科技有限公司 | Outside rear-view mirror driving circuit in electronics automatic anti-glare |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110858046A (en) * | 2018-08-23 | 2020-03-03 | 深圳市麦道微电子技术有限公司 | Control voltage output system based on EC lens |
| CN110858047A (en) * | 2018-08-23 | 2020-03-03 | 深圳市麦道微电子技术有限公司 | Control system for quick color change of EC (EC) lens during backing |
| CN110857058A (en) * | 2018-08-24 | 2020-03-03 | 深圳市麦道微电子技术有限公司 | Electrolytic-capacitor-free control system based on EC full-automatic anti-dazzle inner rear-view mirror |
| CN112677883A (en) * | 2021-01-05 | 2021-04-20 | 爱卓智能科技(上海)有限公司 | Manufacturing method of multi-level color-changing anti-dazzling rearview mirror |
| CN113085731A (en) * | 2021-05-10 | 2021-07-09 | 宁波铝宏汽车零部件有限公司 | Control system and control method for controlling antiglare of vehicle rearview mirror |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108263284A (en) | Outside rear-view mirror driving circuit in electronics automatic anti-glare | |
| CN201484293U (en) | Electrochromic automobile rearview mirror | |
| CN108016348B (en) | LED automobile headlamp module and control method thereof | |
| CN207997812U (en) | Outside rear-view mirror driving circuit in electronics automatic anti-glare | |
| CN103342108A (en) | Headlight drive circuit | |
| CN104981059A (en) | Control circuit for vehicle welcome light and vehicle welcome light | |
| CN110281839B (en) | Automobile high beam and low beam automatic control system based on Bluetooth technology | |
| CN101738747A (en) | Device for performing anti-dazzle control on rearview mirror with digital EC mirror surface based on LIN bus | |
| US20180304815A1 (en) | Intelligent light reflection adjusting device, adjusting method thereof and anti-dazzle rearview mirror | |
| CN106652923A (en) | High-stability and wide-range brightness adjusting method for LED backlight, and high-stability and wide-range LED backlight driving circuit | |
| CN205657888U (en) | Auxiliary power circuit , LED drive circuit , LED driver | |
| CN207631103U (en) | A kind of automatic control device for automobile lights with defencive function | |
| CN215529379U (en) | LED lamp constant current drive circuit capable of adjusting light and color | |
| CN201311527Y (en) | LIN-bus-based antidazzle controlling device of rearview mirror with digital EC mirror surface | |
| CN203078401U (en) | Intelligent car light control device based on CAN (Controller Area Network) bus | |
| CN209170712U (en) | Atmosphere lamp control circuit based on microcontroller on automobile BCM | |
| CN201708999U (en) | Touch led controller | |
| CN209730436U (en) | A kind of EML laser bias current control device and system | |
| CN103024999A (en) | LED (Light-Emitting Diode) stroboscopic light supplement lamp | |
| CN109367485A (en) | A kind of anti-dazzle driving mirror driving circuit of adjustable transparency | |
| CN218974808U (en) | Valve body control circuit, vehicle braking system and vehicle | |
| CN108045299B (en) | Automatic automobile light control device with protection function | |
| CN206134213U (en) | Lcd drive display | |
| CN215010466U (en) | Vehicle-mounted camera | |
| CN216565656U (en) | Driving circuit applied to dynamic daytime running light |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191227 Address after: 601, floor 6, North block, wandelei building, no.017, gaoxinnan 1st Road, high tech Zone, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen alikai Technology Co., Ltd Address before: 310051, 2, 202, 7, Binan Road, Changhe street, Binjiang District, Hangzhou, Zhejiang, China, 1180 Applicant before: Hangzhou Star Electronic Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right |