CN103152939B - A kind of LED power four-in-one light adjusting circuit - Google Patents
A kind of LED power four-in-one light adjusting circuit Download PDFInfo
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- CN103152939B CN103152939B CN201310059718.3A CN201310059718A CN103152939B CN 103152939 B CN103152939 B CN 103152939B CN 201310059718 A CN201310059718 A CN 201310059718A CN 103152939 B CN103152939 B CN 103152939B
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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
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Abstract
The open a kind of LED power four-in-one light adjusting circuit of the present invention, including intelligent control circuit, PWM light modulation port, dividing potential drop and linearity circuit, reference circuit, voltage-stabilized power supply circuit, rc filter circuit, Current amplifier and voltage follower circuit, light modulation output control terminal mouth；Port is unidirectional is connected in its intelligent control circuit and PWM light modulation, dividing potential drop and linearity circuit are connected to dim output control terminal mouth by rc filter circuit, Current amplifier and voltage follower circuit, voltage-stabilized power supply circuit is connected with light modulation output control terminal mouth, reference circuit respectively, and reference circuit, PWM dim that port is the most unidirectional is connected to dividing potential drop and linearity circuit.The present invention can realize power transformation resistance light modulation, 0 10V voltage light modulation, PWM dimming function, and under conditions of without external any circuit, by the existing intelligent dimming function of amendment program end cause for gossip, it is achieved LED power secondary energy-saving, improves the efficiency of entirety.
Description
Technical field
The invention belongs to LED illumination control field, relate to a kind of LED power four-in-one light adjusting circuit.
Background technology
In the last few years, LED applied increasingly wider as the lighting source of new generation of green high-efficient, and LED is luminous
Efficiency is high, energy ezpenditure is low, the life-span is long, and material is recyclable, does not pollutes the environment, and has good tune
Optical property, in order to build more comfortable lighting atmosphere and save the energy, the research to LED light regulating technology seems
And it is important.But, existing LED power light modulation be all single a kind of dimming mode, user install and
Matching process all can run into a lot of problem, such as, it is necessary to buy corresponding light modulation device, make
During with very inconvenient, it is impossible to meet the application demand of people, thus decrease the selection of client, shadow
Ring LED power energy-saving effect.
Therefore, the problem existed for above-mentioned prior art, it is necessary to study in fact, to provide, there is power transformation
Resistance light modulation, the light modulation of 0-10V voltage, PWM dimming function and the LED light adjusting circuit of intelligent dimming function,
And have the feature that simple in construction, whole efficiency are high, easy to adjust, thus realize LED power two partial node
Energy.
Summary of the invention
For solving the problems referred to above, it is an object of the invention to provide and there is power transformation resistance light modulation, 0-10V voltage tune
The LED light adjusting circuit of light, PWM dimming function and intelligent dimming function, and have simple in construction, whole
The feature that body efficiency is high, easy to adjust, thus realize LED power secondary energy-saving.
For achieving the above object, the technical scheme is that
A kind of LED power four-in-one light adjusting circuit, including intelligent control circuit, resistance voltage PWM adjust
Optical port, dividing potential drop and linearity circuit, 2.5V reference circuit, voltage-stabilized power supply circuit, rc filter circuit,
Current amplifier and voltage follower circuit, light modulation output control terminal mouth, its described intelligent control circuit and resistance
Voltage PWM dim the unidirectional connection of port, dividing potential drop and linearity circuit are by rc filter circuit, electric current
Amplifying and voltage follower circuit is connected to dim output control terminal mouth, voltage-stabilized power supply circuit is controlled with light modulation output respectively
Port processed, 2.5V reference circuit connect, 2.5V reference circuit, resistance voltage PWM light modulation port respectively
Unidirectional it is connected to dividing potential drop and linearity circuit.
Further, described intelligent control circuit includes single-chip microcomputer, amendment program port, PWM output
Drive circuit, amendment program port is connected to PWM output driving circuit by single-chip microcomputer, such that it is able to pass through
Single-chip microcomputer kernel is modified by amendment program port, makes the time of single-chip microcomputer control to meet various application requirement.
Further, described PWM output driving circuit is provided with voltage order one and amplifies, and meets dimming portion
Coupling demand.
Further, described dividing potential drop and linearity circuit include resistance R11, resistance R12, resistance R13,
Resistance R14, resistance R15, operational amplifier chip U2B, electric capacity C10, electric capacity C8, resistance R11
One end ground connection after connecting with electric capacity C8, the other end is connected to operational amplifier chip U2B homophase input pin；
After resistance R14 and resistance R15 concatenation, an end is connected to operational amplifier chip U2B homophase input pin, separately
One end is connected to output pin；After resistance R13 and electric capacity C10 parallel connection, an end is connected to operational amplifier chip U2B
Anti-phase input pin, the other end is connected to output pin；Resistance R12 one end ground connection, the other end is connected to computing and puts
Big device chip U2B anti-phase input pin.
Further, described intelligent control circuit and resistance voltage be provided with switch between PWM light modulation port
S, mainly realizes the switching of Based Intelligent Control.
The advantage of LED power four-in-one light adjusting circuit of the present invention is: can realize power transformation resistance light modulation, 0-10V
Voltage light modulation, PWM dimming function, and under conditions of without external any circuit, by amendment journey
Sequence port realizes intelligent dimming function, it is achieved LED power secondary energy-saving, improves the efficiency of entirety, more greatly
Degree played LED power savings advantages.
Accompanying drawing explanation
The structural representation of Fig. 1 embodiment of the present invention a kind of LED power four-in-one light adjusting circuit.
Fig. 2 embodiment of the present invention a kind of LED power four-in-one light adjusting circuit be embodied as circuit diagram.
The dividing potential drop of Fig. 3 embodiment of the present invention a kind of LED power four-in-one light adjusting circuit and linearity circuit
It is embodied as circuit diagram.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
Refer to shown in Fig. 1, a kind of LED power four-in-one light adjusting circuit, including intelligent control circuit, electricity
Resistance voltage PWM light modulation port, dividing potential drop and linearity circuit, 2.5V reference circuit, voltage-stabilized power supply circuit,
Rc filter circuit, Current amplifier and voltage follower circuit, light modulation output control terminal mouth, its described intelligence
Control circuit and resistance voltage PWM light modulation port is unidirectional is connected, dividing potential drop and linearity circuit pass through capacitance-resistance
Filter circuit, Current amplifier and voltage follower circuit are connected to dim output control terminal mouth, and voltage-stabilized power supply circuit divides
Not with dim output control terminal mouth, 2.5V reference circuit is connected, 2.5V reference circuit, resistance voltage PWM
Port is the most unidirectional is connected to dividing potential drop and linearity circuit in light modulation.
Refer to shown in Fig. 2, the embodiment of the present invention at light adjusting circuit when being embodied as, intelligent control circuit
Including single-chip microcomputer, amendment program port, PWM output driving circuit, amendment program port passes through single-chip microcomputer
It is connected to PWM output driving circuit, when what light modulation device, can be by amendment program port to single-chip microcomputer
Kernel is modified, and makes the time of single-chip microcomputer control to meet various application requirement, and PWM output drives
Circuit is provided with voltage order one and amplifies, it is possible to meet the demand of dimming portion coupling.In addition intelligent control circuit with
Resistance voltage PWM light modulation port between be provided with switch S, the switching of Based Intelligent Control can be carried out as required
Operation.
Refer to shown in Fig. 3, described dividing potential drop and linearity circuit include resistance R11, resistance R12,
Resistance R13, resistance R14, resistance R15, operational amplifier chip U2B, electric capacity C10, electric capacity C8,
One end ground connection after resistance R11 and electric capacity C8 series connection, it is defeated that the other end is connected to operational amplifier chip U2B homophase
Enter pin；After resistance R14 and resistance R15 concatenation, an end is connected to the input of operational amplifier chip U2B homophase
Pin, the other end is connected to output pin；After resistance R13 and electric capacity C10 parallel connection, an end is connected to operational amplifier
Chip U2B anti-phase input pin, the other end is connected to output pin；Resistance R12 one end ground connection, another termination
In operational amplifier chip U2B anti-phase input pin.After energising, resistance voltage PWM light modulation port
The signal of telecommunication or the Based Intelligent Control signal of telecommunication obtain desired signal, the most successively warp by dividing potential drop and linearity circuit
Cross capacitance-resistance and consider ripple, voltage follow and the fine setting of output maximum current, it is thus achieved that the signal needed for LED power light modulation,
Realize LED power light modulation.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (3)
1. a LED power four-in-one light adjusting circuit, including intelligent control circuit, electricity Zu electricity Ya PWM
Light modulation port, dividing potential drop and linearity circuit, 2.5V reference circuit, voltage-stabilized power supply circuit, capacitance-resistance filter electricity
Road, Current amplifier and voltage follower circuit, light modulation output control terminal mouth, it is characterised in that: Intelligent control electric
Road and resistance voltage PWM light modulation port is unidirectional is connected, dividing potential drop and linearity circuit are by capacitance-resistance filter electricity
Road, Current amplifier and voltage follower circuit be connected to dim output control terminal mouth, voltage-stabilized power supply circuit respectively with tune
Light output control terminal mouth, 2.5V reference circuit connect, 2.5V reference circuit, resistance voltage PWM light modulation
Port is the most unidirectional is connected to dividing potential drop and linearity circuit；
Described intelligent control circuit includes single-chip microcomputer, amendment program port, PWM output driving circuit, repaiies
Change program port and be connected to PWM output driving circuit by single-chip microcomputer, by amendment program port to single-chip microcomputer
Kernel is modified, and makes the time of single-chip microcomputer control to meet various application requirement；
Described dividing potential drop and linearity circuit include resistance R11, resistance R12, resistance R13, resistance R14,
Resistance R15, operational amplifier chip U2B, electric capacity C10 and electric capacity C8, resistance R11 and electric capacity C8 series connection
Rear electric capacity C8 one end ground connection, resistance R11 mono-end is connected to the homophase input pin of operational amplifier chip U2B；
After resistance R14 and resistance R15 concatenation, an end is connected to the homophase input pin of operational amplifier chip U2B,
The other end is connected to output pin；After resistance R13 and electric capacity C10 parallel connection, an end is connected to operational amplifier chip
The reverse input pin of U2B, the other end is connected to output pin；Resistance R12 one end ground connection, the other end is connected to
The reverse input pin of operational amplifier chip U2B.
2. LED power four-in-one light adjusting circuit as claimed in claim 1, it is characterised in that: described
PWM output driving circuit is provided with voltage order one and amplifies, and meets dimming portion coupling demand.
3. LED power four-in-one light adjusting circuit as claimed in claim 1, it is characterised in that: described
Intelligent control circuit and resistance voltage be provided with switch S between PWM light modulation port, mainly realize Based Intelligent Control
Switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059718.3A CN103152939B (en) | 2013-02-26 | 2013-02-26 | A kind of LED power four-in-one light adjusting circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059718.3A CN103152939B (en) | 2013-02-26 | 2013-02-26 | A kind of LED power four-in-one light adjusting circuit |
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| CN103152939A CN103152939A (en) | 2013-06-12 |
| CN103152939B true CN103152939B (en) | 2016-09-07 |
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| CN201310059718.3A Active CN103152939B (en) | 2013-02-26 | 2013-02-26 | A kind of LED power four-in-one light adjusting circuit |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470060B (en) * | 2014-10-20 | 2017-09-15 | 深圳市华星光电技术有限公司 | Simulation light modulation change-over circuit and display device |
| CN104837247A (en) * | 2015-05-07 | 2015-08-12 | 成都东旭节能科技有限公司 | Four-in-one LED power supply linear dimming control circuit |
| CN104994630B (en) * | 2015-06-19 | 2019-03-08 | 伊博电源（杭州）有限公司 | A kind of LED driver control method for integrating a variety of dimming modes |
| CN106658817B (en) * | 2016-09-30 | 2018-06-22 | 深圳莱福德科技股份有限公司 | A kind of dim signal processing system for LED drive power |
| CN108112125B (en) * | 2017-12-28 | 2024-01-30 | 杨旭 | Five-in-one dimming circuit and dimming method |
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| CN201718074U (en) * | 2010-06-13 | 2011-01-19 | 钱江涛 | Centralized intelligent dimming LED fluorescent lamp |
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|---|---|---|---|---|
| JP3638442B2 (en) * | 1998-08-18 | 2005-04-13 | 旭化成マイクロシステム株式会社 | Volume circuit |
| CN201928486U (en) * | 2010-12-10 | 2011-08-10 | 佛山市顺德区瑞德电子实业有限公司 | Pulse width modulation (PWM) dimming light-emitting diode (LED) driving circuit |
| CN102395235A (en) * | 2011-11-04 | 2012-03-28 | 深圳市新超亮特种显示设备有限公司 | Energy saving lamp box control circuit and energy saving lamp box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201718074U (en) * | 2010-06-13 | 2011-01-19 | 钱江涛 | Centralized intelligent dimming LED fluorescent lamp |
| CN102026453A (en) * | 2010-12-31 | 2011-04-20 | 崧顺电子（深圳）有限公司 | Light emitting diode (LED) power source dimming control device |
| CN202059633U (en) * | 2011-04-27 | 2011-11-30 | 杭州泽旭光电科技有限公司 | Intelligent control device for LED light supplement lamp |
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| CN103152939A (en) | 2013-06-12 |
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