CN113507771A - Light driving system - Google Patents
Light driving system Download PDFInfo
- Publication number
- CN113507771A CN113507771A CN202110625341.8A CN202110625341A CN113507771A CN 113507771 A CN113507771 A CN 113507771A CN 202110625341 A CN202110625341 A CN 202110625341A CN 113507771 A CN113507771 A CN 113507771A
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- China
- Prior art keywords
- circuit
- resistor
- operational amplifier
- driving system
- capacitor
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- 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.)
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- 230000005236 sound signal Effects 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 18
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 230000033764 rhythmic process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/12—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
The invention relates to the technical field of light driving, in particular to a light driving system which comprises an audio power amplifier, a light driving circuit, an audio signal amplifier and a driving enhancement circuit, wherein the audio signal amplifier and the driving enhancement circuit are arranged between the audio power amplifier and the light driving circuit. The invention aims to provide a light driving system, and the technical scheme provided by the invention solves the technical problem that the existing vehicle-mounted key background light mode is monotonous.
Description
Technical Field
The invention relates to the technical field of light driving, in particular to a light driving system.
Technical Field
At present, the vehicle-mounted key backlight schemes are both in a fixed brightness mode or a daytime and night mode, and the modes are monotonous. In the light driving structure, the DSP audio power amplifier and the light control work independently, and the DSP audio power amplifier and the light control do not have relevance.
If a user wants the vehicle-mounted light to have a rhythm effect, accessories such as an atmosphere lamp and the like are additionally added to refit the vehicle, so that a large refit action is needed, and large labor and material cost is paid; but also influences the appearance of the interior trim, and the structure of the interior trim can be changed to a certain extent by additionally arranging other accessories.
Disclosure of Invention
The invention aims to provide a light driving system, and the technical scheme provided by the invention solves the technical problem that the existing vehicle-mounted key background light mode is monotonous.
In order to solve the above technical problem, the present invention provides a lamp driving system, which includes an audio power amplifier, a lamp driving circuit, and an audio signal amplifier and a driving enhancement circuit disposed between the audio power amplifier and the lamp driving circuit.
Preferably, the lighting circuit further comprises a mode switching circuit connected between the audio signal amplifier and the drive enhancing circuit and the lighting driving circuit.
Preferably, the mode switching switch circuit is connected with the MCU.
Preferably, the audio signal amplifier and the drive enhancement circuit comprise an operational amplifier circuit, a filter circuit connected between the reverse input end of the operational amplifier circuit and the audio power amplifier, and a power supply circuit connected to the forward input end of the operational amplifier circuit; and the output end of the operational amplifier circuit is connected to the lamplight driving circuit.
Preferably, the filter circuit comprises a first capacitor, a second capacitor and a first resistor which are sequentially connected between the audio power amplifier and the reverse input end of the operational amplifier circuit; a 3.3V power supply connected through a second resistor is connected between the first capacitor and the second capacitor, and is pulled down and grounded through a third resistor; and a fourth resistor is connected between the reverse input end and the output end of the operational amplifier circuit.
Preferably, the power supply circuit comprises a 5V power supply connected to the positive input end of the operational amplifier circuit through a fifth resistor; and the positive input end of the operational amplifier circuit is grounded through a third capacitor, a second capacitor and a sixth resistor respectively.
Preferably, the mode selector switch circuit comprises a selector switch controlled by the MCU; and a first contact of the change-over switch is connected with a 3.3V power supply through a seventh resistor, and a second contact of the change-over switch is connected with the output end of the operational amplifier circuit through an eighth resistor.
From the above, the application of the technical scheme provided by the invention has the following beneficial effects: through increasing simple and easy drive circuit and software switch interface for the vehicle-mounted button backlight realizes the music rhythm effect, compares with ordinary button backlight, has increased the effect of the individualized rhythm lamp of light, obviously promotes user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a block diagram of a lighting driving system according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a lighting driving system according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The prior art scheme is as follows: the DSP audio power amplifier and the light control work independently, and the DSP audio power amplifier and the light control do not have relevance.
Referring to fig. 1-2, to solve the above technical problems, the present embodiment provides a lamp driving system, which includes an audio power amplifier, a lamp driving circuit, an audio signal amplifier and a driving enhancement circuit disposed between the audio power amplifier and the lamp driving circuit.
Specifically, the audio signal amplifier and the drive enhancement circuit comprise an operational amplifier circuit, a filter circuit connected between a reverse input end of the operational amplifier circuit and the audio power amplifier, and a power supply circuit connected to a forward input end of the operational amplifier circuit; the output end of the operational amplifier circuit is connected with the light driving circuit.
The filter circuit comprises a first capacitor, a second capacitor and a first resistor which are sequentially connected between the audio power amplifier and the reverse input end of the operational amplifier circuit; a 3.3V power supply connected through a second resistor is connected between the first capacitor and the second capacitor, and is pulled down and grounded through a third resistor; and a fourth resistor is connected between the reverse input end and the output end of the operational amplifier circuit.
The power supply circuit comprises a 5V power supply which is connected to the positive input end of the operational amplifier circuit through a fifth resistor; the positive input end of the operational amplifier circuit is grounded through a third capacitor, a second capacitor and a sixth resistor respectively.
The application generates electrical association between the DSP audio power amplifier and the light control through the audio signal amplifier and the drive enhancing circuit, and the light control is realized while the audio drive is realized.
Simultaneously, in order to further realize the diversified control of light, this application still includes and connects in the mode change over switch circuit between audio signal amplifier and drive reinforcing circuit and the light drive circuit. The mode switching switch circuit is connected with the MCU. The mode switching switch circuit comprises a switching switch controlled by the MCU; and a first contact of the change-over switch is connected with a 3.3V power supply through a seventh resistor, and a second contact of the change-over switch is connected with the output end of the operational amplifier circuit through an eighth resistor.
This application is between audio power amplifier and light control, increases a simple and easy conversion and drive circuit, converts audio information into the strong signal that can control light to realize the rhythm function that light accompanies the music, simultaneously, through increasing the mode selection switch, the terminal user selects the mode that oneself needs, MCU reads behind user's the mode setting request, the corresponding required light mode of opening of control mode change over switch, and is simple and convenient, provides an individualized rhythm lamp effect.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (7)
1. A light driving system, characterized by: the lighting circuit comprises an audio power amplifier, a lighting driving circuit, an audio signal amplifier and a driving enhancement circuit, wherein the audio signal amplifier and the driving enhancement circuit are arranged between the audio power amplifier and the lighting driving circuit.
2. A light driving system according to claim 1, wherein: and the mode switching circuit is connected between the audio signal amplifier and the drive enhancing circuit and the lamplight drive circuit.
3. A light driving system according to claim 2, wherein: the mode switching switch circuit is connected with the MCU.
4. A light driving system according to claim 1, wherein: the audio signal amplifier and drive enhancing circuit comprises an operational amplifier circuit, a filter circuit connected between the reverse input end of the operational amplifier circuit and the audio power amplifier, and a power supply circuit connected to the forward input end of the operational amplifier circuit; and the output end of the operational amplifier circuit is connected to the lamplight driving circuit.
5. A light driving system according to claim 4, wherein: the filter circuit comprises a first capacitor, a second capacitor and a first resistor which are sequentially connected between the audio power amplifier and the reverse input end of the operational amplifier circuit; a 3.3V power supply connected through a second resistor is connected between the first capacitor and the second capacitor, and is pulled down and grounded through a third resistor; and a fourth resistor is connected between the reverse input end and the output end of the operational amplifier circuit.
6. A light driving system according to claim 5, wherein: the power supply circuit comprises a 5V power supply which is connected to the positive input end of the operational amplifier circuit through a fifth resistor; and the positive input end of the operational amplifier circuit is grounded through a third capacitor, a second capacitor and a sixth resistor respectively.
7. A light driving system according to claim 3, wherein: the mode switching switch circuit comprises a switching switch controlled by the MCU; and a first contact of the change-over switch is connected with a 3.3V power supply through a seventh resistor, and a second contact of the change-over switch is connected with the output end of the operational amplifier circuit through an eighth resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110625341.8A CN113507771A (en) | 2021-06-04 | 2021-06-04 | Light driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110625341.8A CN113507771A (en) | 2021-06-04 | 2021-06-04 | Light driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113507771A true CN113507771A (en) | 2021-10-15 |
Family
ID=78009428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110625341.8A Pending CN113507771A (en) | 2021-06-04 | 2021-06-04 | Light driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113507771A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477914A (en) * | 2002-08-22 | 2004-02-25 | 张志杰 | Music lamp and its implement method |
| CN2831635Y (en) * | 2005-06-30 | 2006-10-25 | 康佳集团股份有限公司 | Cell phone having its indicator lamp brightness variated with sounding variation |
| KR20100104254A (en) * | 2009-03-17 | 2010-09-29 | 정희성 | Circuit for controlling led array by using attributes of audio signal |
| CN203675376U (en) * | 2013-12-25 | 2014-06-25 | 中国科学院广州能源研究所 | Intelligent illumination control system |
| CN205485400U (en) * | 2016-02-16 | 2016-08-17 | 温州市艺美建筑装饰工程有限公司 | Sound control lamp and sound control lamp system comprising same |
| CN206773456U (en) * | 2017-04-20 | 2017-12-19 | 深圳市蓝海华腾技术股份有限公司 | A kind of controller for music fountain with audio signal detection and signal light control |
| CN108925010A (en) * | 2018-08-28 | 2018-11-30 | 广东卡仕达电子科技有限公司 | A kind of control method of automatic navigator key backlight lamp |
| CN209390078U (en) * | 2019-01-31 | 2019-09-13 | 广州德勤龙健电子有限公司 | Audio expands device and broadcast system |
| CN110753432A (en) * | 2019-11-30 | 2020-02-04 | 济宁中科先进技术研究院有限公司 | Multi-state new energy automobile atmosphere lamp system and control method thereof |
| CN110896582A (en) * | 2018-08-22 | 2020-03-20 | 上海擎感智能科技有限公司 | Vehicle-mounted terminal and control method of backlight module of key |
-
2021
- 2021-06-04 CN CN202110625341.8A patent/CN113507771A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477914A (en) * | 2002-08-22 | 2004-02-25 | 张志杰 | Music lamp and its implement method |
| CN2831635Y (en) * | 2005-06-30 | 2006-10-25 | 康佳集团股份有限公司 | Cell phone having its indicator lamp brightness variated with sounding variation |
| KR20100104254A (en) * | 2009-03-17 | 2010-09-29 | 정희성 | Circuit for controlling led array by using attributes of audio signal |
| CN203675376U (en) * | 2013-12-25 | 2014-06-25 | 中国科学院广州能源研究所 | Intelligent illumination control system |
| CN205485400U (en) * | 2016-02-16 | 2016-08-17 | 温州市艺美建筑装饰工程有限公司 | Sound control lamp and sound control lamp system comprising same |
| CN206773456U (en) * | 2017-04-20 | 2017-12-19 | 深圳市蓝海华腾技术股份有限公司 | A kind of controller for music fountain with audio signal detection and signal light control |
| CN110896582A (en) * | 2018-08-22 | 2020-03-20 | 上海擎感智能科技有限公司 | Vehicle-mounted terminal and control method of backlight module of key |
| CN108925010A (en) * | 2018-08-28 | 2018-11-30 | 广东卡仕达电子科技有限公司 | A kind of control method of automatic navigator key backlight lamp |
| CN209390078U (en) * | 2019-01-31 | 2019-09-13 | 广州德勤龙健电子有限公司 | Audio expands device and broadcast system |
| CN110753432A (en) * | 2019-11-30 | 2020-02-04 | 济宁中科先进技术研究院有限公司 | Multi-state new energy automobile atmosphere lamp system and control method thereof |
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