CN103209516B - The light adjusting circuit of a kind of LED light-dimming method and employing the method - Google Patents
The light adjusting circuit of a kind of LED light-dimming method and employing the method Download PDFInfo
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- CN103209516B CN103209516B CN201210559998.XA CN201210559998A CN103209516B CN 103209516 B CN103209516 B CN 103209516B CN 201210559998 A CN201210559998 A CN 201210559998A CN 103209516 B CN103209516 B CN 103209516B
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Abstract
The light adjusting circuit of LED light-dimming method and employing the method, relates to LED light regulating technology.A kind of LED light-dimming method, control unit exports the signal of telecommunication of PWM form to signal adjustment unit, after signal adjustment unit receives the signal of telecommunication, analyzing and processing is carried out to the signal of telecommunication, and export a control signal to constant current output circuit, constant current output circuit exports to the electric current of LED load according to described control signal adjustment, completes LED light modulation.A kind of LED light adjusting circuit is the light adjusting circuit adopting the design of LED light-dimming method.PWM not only economy but also conserve space, also have good noiseproof feature.The present invention is based on PWM to carry out light modulation, be all digital form from control unit to signal adjustment unit, and without the need to carrying out digital-to-analogue conversion, stability is high and not easily produce misoperation.
Description
Technical field
The present invention relates to circuit engineering field, be specifically related to LED light regulating technology.
Background technology
Be very important to dimming light source, on the one hand, a more comfortable environment can be obtained by light modulation, on the other hand, unnecessary light can be reduced by light modulation, realize energy-saving and emission-reduction further.For LED light source, light modulation, than at other lamp, as fluorescent lamp, electricity-saving lamp, high-pressure sodium lamp, more easily realizes, therefore is necessary the function adding light modulation in all kinds of LED lamp.
Summary of the invention
The object of the invention is to, provide the light adjusting circuit of a kind of LED light-dimming method and employing the method, to solve the problem.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of LED light-dimming method, it is characterized in that, control unit exports the signal of telecommunication of PWM form to signal adjustment unit, after described signal adjustment unit receives the described signal of telecommunication, analyzing and processing is carried out to the described signal of telecommunication, and exporting a control signal to constant current output circuit, described constant current output circuit exports to the electric current of LED load according to described control signal adjustment, completes LED light modulation.PWM not only economy but also conserve space, also have good noiseproof feature.The present invention is based on PWM to carry out light modulation, be all digital form from control unit to signal adjustment unit, and without the need to carrying out digital-to-analogue conversion, stability is high and not easily produce misoperation.
The analyzing and processing of described signal adjustment unit to the signal of telecommunication of the PWM form that described control unit exports comprises short circuit output, various forms of filtering, signal limiter, signal conversion etc.The output of described signal adjustment unit can be the signal of telecommunication of PWM form, also can be the signal of telecommunication of voltage form, or the other forms of signal of telecommunication.
A kind of LED light adjusting circuit, comprises the constant current output circuit that is LED lamp input current, it is characterized in that, also comprise a control unit, described control unit connection signal adjustment unit; The signal output part of described signal adjustment unit connects the signal input part of described constant current output circuit;
The signal of telecommunication that described control unit exports is the signal of telecommunication of PWM form, described signal adjustment unit receives the signal of telecommunication of the PWM form that described control unit exports, and analyzing and processing is carried out to the described signal of telecommunication, described signal adjustment unit is to after described signal of telecommunication analyzing and processing, a control signal is exported to described constant current output circuit, described constant current output circuit exports to the electric current of LED load according to described control signal adjustment, completes LED light modulation.
The analyzing and processing of described signal adjustment unit to the signal of telecommunication of the PWM form that described control unit exports comprises short circuit output, various forms of filtering, signal limiter, signal conversion etc.The output of described signal adjustment unit can be the signal of telecommunication of PWM form, also can be the signal of telecommunication of voltage form, or the other forms of signal of telecommunication.
A kind of LED light adjusting circuit, also comprise one for providing the power module of electric energy, described power module is provided with output port of power source, and described output port of power source connects the power input port of described control unit, the power input port of described signal adjustment unit, the power input port of described constant current output circuit respectively.
Described control unit can be the intelligent cells such as MCU, also can be the interface circuit that Digital Logical Circuits, switching circuit, analog regulation etc. can adjust operating state.
As a kind of preferred version, described control unit can comprise a static database, and described control unit can export the signal of telecommunication of PWM form according to the data in described static database.The operating state of described control unit signal adjustment unit according to the Data Control of static database.Described control unit can comprise a dynamic data base, described control unit input signal to external world carries out record, and stored in described dynamic data base, described dynamic data base is in use expanded, form the dynamic data base that has Self-learning Model;
Described control unit according to described in there are data in the dynamic data base of Self-learning Model to export the signal of telecommunication of PWM form.The operating state of described control unit signal adjustment unit according to the Data Control of dynamic data base.
Described signal adjustment unit can have a plurality of, and the signal output part of the equal access control unit of signal input part of a plurality of described signal adjustment unit, the signal output part of each signal adjustment unit all connects the signal input part of a constant current output circuit.In this way, the adjustment that can realize multiple LED lamp with control unit.
Described constant current output circuit also can direct connection control unit, and adjusts its operating state according to the signal of telecommunication that control unit exports.
Accompanying drawing explanation
Fig. 1 is a kind of circuit diagram of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
With reference to Fig. 1, a kind of LED light-dimming method, control unit 2 exports the signal of telecommunication of PWM form to signal adjustment unit, after signal adjustment unit 3 receives the signal of telecommunication, analyzing and processing is carried out to the signal of telecommunication, and exporting a control signal to constant current output circuit 4, constant current output circuit 4 exports to the electric current of LED load 5 according to control signal adjustment, completes LED light modulation.PWM not only economy but also conserve space, also have good noiseproof feature.The present invention is based on PWM to carry out light modulation, is all digital form from control unit 2 to signal adjustment unit 3, and without the need to carrying out digital-to-analogue conversion, stability is high and not easily produce misoperation.
The analyzing and processing of the signal of telecommunication of the PWM form that signal adjustment unit 3 pairs of control units 2 export comprises short circuit output, various forms of filtering, signal limiter, signal conversion etc.The output of signal adjustment unit 3 can be the signal of telecommunication of PWM form, also can be the signal of telecommunication of voltage form, or the other forms of signal of telecommunication.
A kind of LED light adjusting circuit, comprises the constant current output circuit 4 that is LED lamp input current, it is characterized in that, also comprise a control unit 2, control unit 2 connection signal adjustment unit 3; The signal output part of signal adjustment unit 3 connects the signal input part of constant current output circuit 4;
The signal of telecommunication that control unit exports is the signal of telecommunication of PWM form, the signal of telecommunication of the PWM form that signal adjustment unit 3 reception control unit 2 exports, and analyzing and processing is carried out to the signal of telecommunication, after signal adjustment unit 3 pairs of signal of telecommunication analyzing and processing, a control signal is exported to constant current output circuit 4, constant current output circuit 4 exports to the electric current of LED load 5 according to control signal adjustment, completes LED light modulation.
The analyzing and processing of the signal of telecommunication of the PWM form that signal adjustment unit 3 pairs of control units 2 export comprises short circuit output, various forms of filtering, signal limiter, signal conversion etc.The output of signal adjustment unit 3 can be the signal of telecommunication of PWM form, also can be the signal of telecommunication of voltage form, or the other forms of signal of telecommunication.
A kind of LED light adjusting circuit, also comprise one for providing the power module 1 of electric energy, power module 1 is provided with output port of power source, power input port, the power input port of signal adjustment unit 3, the power input port of constant current output circuit 4 of output port of power source difference connection control unit 2.
Control unit 2 can be the intelligent cells such as MCU, also can be the interface circuit that Digital Logical Circuits, switching circuit, analog regulation etc. can adjust operating state.
As a kind of preferred version, control unit 2 can comprise a static database, and control unit 2 can export the signal of telecommunication of PWM form according to the data in static database.Control unit 2 is according to the operating state of the data controlling signal adjustment unit 3 of static database.Control unit 2 can comprise a dynamic data base, and control unit 2 input signal to external world carries out record, and stored in dynamic data base, dynamic data base is in use expanded, and forms the dynamic data base that has Self-learning Model;
Control unit 2 according to the data had in the dynamic data base of Self-learning Model to export the signal of telecommunication of PWM form.Control unit 2 is according to the operating state of the data controlling signal adjustment unit 3 of dynamic data base.
Signal adjustment unit 3 can have a plurality of, and the signal output part of the equal access control unit 2 of signal input part of a plurality of signal adjustment unit 3, the signal output part of each signal adjustment unit 3 all connects the signal input part of a constant current output circuit 4.In this way, the adjustment that can realize multiple LED lamp with a control unit 2.
Constant current output circuit 4 also can direct connection control unit 2, and adjusts its operating state according to the signal of telecommunication that control unit 2 exports.
Fig. 1 is the form of a signal adjustment unit 3, constant current output circuit 4.Wherein:
1. power module 1: for providing DC power supply to reference voltage module, voltage-adjusting unit, signal adjustment unit 3, regulation unit 2, constant current output circuit 4;
2. control unit 2: for the Drazin inverse signal of telecommunication to signal adjustment unit 3, finally to regulate the output current of constant current output circuit 4.Here the signal of telecommunication exported is the signal of telecommunication of PWM form.
3. signal adjustment unit 3: the signal of telecommunication exported for receiver voltage adjustment unit, and certain electricity process is carried out to this signal of telecommunication, to eliminate interference, signal shaping etc., then the signal of telecommunication after process is outputted to constant current output circuit 4.Here the signal of telecommunication exported is the signal of telecommunication of the form such as PWM, voltage.
4. constant current output circuit 4: the signal of telecommunication exported for Received signal strength adjustment unit 3, and the electric current of load unit is outputted to according to this Signal Regulation.
5. LED load 5: the current signal exported for receiving constant current output circuit 4 normally works.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (5)
1. a LED light-dimming method, it is characterized in that, control unit exports the signal of telecommunication of PWM form to signal adjustment unit, after described signal adjustment unit receives the described signal of telecommunication, analyzing and processing is carried out to the described signal of telecommunication, and exporting a control signal to constant current output circuit, described constant current output circuit exports to the electric current of LED load according to described control signal adjustment, completes LED light modulation;
Described control unit comprises a static database, and described control unit exports the signal of telecommunication of PWM form according to the data in described static database;
Described control unit comprises a dynamic data base, described control unit input signal to external world carries out record, and stored in described dynamic data base, described dynamic data base is in use expanded, form the dynamic data base that has Self-learning Model;
Described control unit according to described in there are data in the dynamic data base of Self-learning Model to export the signal of telecommunication of PWM form;
The output of described signal adjustment unit is the signal of telecommunication of PWM form or the signal of telecommunication of voltage form;
The analyzing and processing of described signal adjustment unit to the signal of telecommunication of the PWM form that described control unit exports comprises short circuit output, various forms of filtering, signal limiter and/or signal conversion.
2. a LED light adjusting circuit, comprises the constant current output circuit that is LED lamp input current, it is characterized in that, also comprise a control unit, described control unit connection signal adjustment unit; The signal output part of described signal adjustment unit connects the signal input part of described constant current output circuit;
The signal of telecommunication that described control unit exports is the signal of telecommunication of PWM form, described signal adjustment unit receives the signal of telecommunication of the PWM form that described control unit exports, and analyzing and processing is carried out to the described signal of telecommunication, described signal adjustment unit is to after described signal of telecommunication analyzing and processing, a control signal is exported to described constant current output circuit, described constant current output circuit exports to the electric current of LED load according to described control signal adjustment, completes LED light modulation;
Described control unit comprises a static database, and described control unit exports the signal of telecommunication of PWM form according to the data in described static database;
Described control unit comprises a dynamic data base, described control unit input signal to external world carries out record, and stored in described dynamic data base, described dynamic data base is in use expanded, form the dynamic data base that has Self-learning Model;
Described control unit according to described in there are data in the dynamic data base of Self-learning Model to export the signal of telecommunication of PWM form;
The output of described signal adjustment unit is the signal of telecommunication of PWM form or the signal of telecommunication of voltage form;
The analyzing and processing of described signal adjustment unit to the signal of telecommunication of the PWM form that described control unit exports comprises short circuit output, various forms of filtering, signal limiter and/or signal conversion.
3. a kind of LED light adjusting circuit according to claim 2, it is characterized in that: also comprise one for providing the power module of electric energy, described power module is provided with output port of power source, and described output port of power source connects the power input port of described control unit, the power input port of described signal adjustment unit, the power input port of described constant current output circuit respectively.
4. a kind of LED light adjusting circuit according to claim 2, is characterized in that: described control unit is MCU.
5. a kind of LED light adjusting circuit according to claim 2, it is characterized in that: described signal adjustment unit has a plurality of, the signal output part of the equal access control unit of signal input part of a plurality of described signal adjustment unit, the signal output part of each signal adjustment unit all connects the signal input part of a constant current output circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559998.XA CN103209516B (en) | 2012-12-20 | 2012-12-20 | The light adjusting circuit of a kind of LED light-dimming method and employing the method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559998.XA CN103209516B (en) | 2012-12-20 | 2012-12-20 | The light adjusting circuit of a kind of LED light-dimming method and employing the method |
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| CN103209516A CN103209516A (en) | 2013-07-17 |
| CN103209516B true CN103209516B (en) | 2015-09-16 |
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| CN109756267A (en) * | 2017-11-07 | 2019-05-14 | 珠海横琴华策光通信科技有限公司 | A kind of camera positioning system and its application based on LED light emission device light-seeking |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360378A (en) * | 2008-09-05 | 2009-02-04 | 广州市雅江光电设备有限公司 | Light regulating method for LED light regulating apparatus |
| CN102438378A (en) * | 2011-12-20 | 2012-05-02 | 江苏宏微科技有限公司 | LED (Light Emitting Diode) illumination intelligent control system |
| CN102497710A (en) * | 2011-12-30 | 2012-06-13 | 成都芯源***有限公司 | LED phase-shift dimming circuit and method thereof |
| CN102630110A (en) * | 2011-11-24 | 2012-08-08 | 上海显恒光电科技股份有限公司 | LED driver control system with adjustable feedback current and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5780803B2 (en) * | 2011-03-29 | 2015-09-16 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | LED dimming circuit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360378A (en) * | 2008-09-05 | 2009-02-04 | 广州市雅江光电设备有限公司 | Light regulating method for LED light regulating apparatus |
| CN102630110A (en) * | 2011-11-24 | 2012-08-08 | 上海显恒光电科技股份有限公司 | LED driver control system with adjustable feedback current and control method thereof |
| CN102438378A (en) * | 2011-12-20 | 2012-05-02 | 江苏宏微科技有限公司 | LED (Light Emitting Diode) illumination intelligent control system |
| CN102497710A (en) * | 2011-12-30 | 2012-06-13 | 成都芯源***有限公司 | LED phase-shift dimming circuit and method thereof |
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Inventor after: Liu Yaqing Inventor before: Lin Zhiyi Inventor before: Li Dongming |
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Effective date of registration: 20170504 Address after: 528478 Guangdong city of Zhongshan province Henglan Town Village Yongxing Industrial Zone Heng Fu Qing two Road No. 3 Building 5 floor C second card Patentee after: Zhongshan city erdo s Photoelectric Technology Co. Ltd. Address before: 201210 room 6, building 829, No. 504, Xuhui District, Shanghai, Yishan Road Patentee before: Shanghai Xianheng Photoelectric Technology Co., Ltd. |
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