CN105007661A - LED control device with automatic brightness regulating function - Google Patents
LED control device with automatic brightness regulating function Download PDFInfo
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- CN105007661A CN105007661A CN201510452181.6A CN201510452181A CN105007661A CN 105007661 A CN105007661 A CN 105007661A CN 201510452181 A CN201510452181 A CN 201510452181A CN 105007661 A CN105007661 A CN 105007661A
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Abstract
The invention discloses an LED control device with an automatic brightness regulating function. The LED control device comprises an ambient light detection module, a master control circuit, a photoelectric coupler, a pulse width modulation control circuit, a first rectification/filter circuit, a power supply input end, a power switch circuit, a transformer and a second rectification/filter circuit. LED brightness can be automatically regulated in real time according to indoor ambient light so that indoor illuminance is ensured to be maintained at a preset value constantly; silicon controlled rectifier light regulation is supported, and the illumination threshold value of the LED can be regulated by a user via a silicon controlled rectifier phase switching light regulator and a touch control screen on the wall; meanwhile, the mode of the LED can be switched to a full-power working mode via the continuous rapid switch of the ON/OFF switch on the silicon controlled rectifier phase switching light regulator panel, and various requirements of the user can be met so that the LED control device is simple in structure, low in cost, convenient to use, complete in function and energy-saving and environment-friendly.
Description
Technical field
The present invention relates to a kind of LED control technology field, particularly relate to a kind of LED control device with automatic brightness adjusting function.
Background technology
LED illumination technology has the incomparable advantage of conventional lighting technology, has obtained at present and has applied extremely widely.LED illumination lamp has the advantage such as high light flux, low-power consumption.Make full use of the illumination capability of LED and the advantage of integrating control ability, at utmost meet human comfort requirement, required by people.After traditional LED lamp energising, brightness immobilizes, and is suitable only for and throws light in the environment of dark, cause the scope of application of LED to have limitation, electric power resource can be caused to waste when the daytime of insufficient light uses this kind of LED.In addition, the control circuit not only complex structure that existing LED luminance controls, cost is high, and cannot regulate LED illuminance in real time according to the light luminance of environment residing for LED.
Summary of the invention
The object of the invention is to, by a kind of LED control device with automatic brightness adjusting function, solve the problem that above background technology part is mentioned.
For reaching this object, the present invention by the following technical solutions:
There is a LED control device for automatic brightness adjusting function, comprise ambient light detection module, main control circuit, photoelectrical coupler, control circuit for pulse-width modulation, the first rectifying/filtering circuit, power input, power switch circuit, transformer and the second rectifying/filtering circuit; Described ambient light detection module one end connects the signal input part of main control circuit, connects the secondary coil of transformer after the other end is connected with main control circuit; The output of described main control circuit connects one end of photoelectrical coupler, and the other end of photoelectrical coupler connects control circuit for pulse-width modulation; The control end of described control circuit for pulse-width modulation connects power switch circuit control end, control circuit for pulse-width modulation power end connects the first rectifying/filtering circuit output, power switch circuit input, first rectifying/filtering circuit input connects power input, the primary coil of power switch circuit output connection transformer.
Especially, the LED control device described in automatic brightness adjusting function also comprises controllable silicon phase-cut dimmer and touch control screen; Described controllable silicon phase-cut dimmer is electrically connected the first rectifying/filtering circuit input, and described touch control screen connects main control circuit.
Especially, the panel of described controllable silicon phase-cut dimmer is provided with ON/OFF switch, by the mode of operation of described ON/OFF switching over LED.
Especially, described ambient light detection module selects illuminance transducer; Described main control circuit comprises micro-control unit (MCU).
Technical scheme of the present invention can regulate LED self brightness in real time automatically according to ambient room light, guarantees that indoor light intensity remains on preset value all the time; Support controllable silicon light modulation, user can get rid of by the controllable silicon phase-cut dimmer on metope, touch control the illumination threshold values regulating LED; LED can be switched to full power operation pattern by the continuous high-speed switch of the ON/OFF switch on controllable silicon phase-cut dimmer panel simultaneously, meet the various demand of user, the present invention not only structure is simple, and cost is low, and easy to use, perfect in shape and function, energy-conserving and environment-protective.
Accompanying drawing explanation
The structured flowchart with the LED control device of automatic brightness adjusting function that Fig. 1 provides for the embodiment of the present invention.
The circuit structure diagram with the LED control device of automatic brightness adjusting function that Fig. 2 provides for the embodiment of the present invention.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make to disclosure of the present invention understand more thorough comprehensively.Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Please refer to shown in Fig. 1, the structured flowchart with the LED control device of automatic brightness adjusting function that Fig. 1 provides for the embodiment of the present invention.
The LED control device in the present embodiment with automatic brightness adjusting function specifically comprises ambient light detection module 101, main control circuit 102, photoelectrical coupler 103, control circuit for pulse-width modulation 104, first rectifying/filtering circuit 105, power input 106, power switch circuit 107, transformer 108 and the second rectifying/filtering circuit 109.
Described ambient light detection module 101 one end connects the signal input part of main control circuit 102, and the other end connects the secondary coil of transformer 108 after being connected with main control circuit 102; The output of described main control circuit 102 connects one end of photoelectrical coupler 103, and the other end of photoelectrical coupler 103 connects control circuit for pulse-width modulation 104; The control end of described control circuit for pulse-width modulation 104 connects power switch circuit 107 control end, control circuit for pulse-width modulation 104 power end connects the first rectifying/filtering circuit 105 output, power switch circuit 107 input, first rectifying/filtering circuit 105 input connects power input 106, the primary coil of power switch circuit 107 output connection transformer 108.The LED control device in the present embodiment with automatic brightness adjusting function also comprises controllable silicon phase-cut dimmer, touch control screen.Described controllable silicon phase-cut dimmer is electrically connected the first rectifying/filtering circuit 105 input.Described touch control screen connects main control circuit 102.By the illumination threshold values of controllable silicon phase-cut dimmer, touch control screen setting LED.The panel of described controllable silicon phase-cut dimmer is provided with ON/OFF switch, by the mode of operation of described ON/OFF switching over LED.LED can be switched to full power operation pattern by the continuous high-speed switch of this ON/OFF switch.Described ambient light detection module 101 selects illuminance transducer.Power factor correction (PFC) function is integrated with in described control circuit for pulse-width modulation 104.Described main control circuit 102 comprises micro-control unit (MCU).
Below operation principle of the present invention is explained the main points briefly: luminosity information sends to main control circuit 102 to process by I2C bus after the wide region luminosity information detected is carried out digital processing by illuminance transducer, main control circuit 102 will export corresponding PWM (pulse-width modulation) signal and deliver to control circuit for pulse-width modulation 104 and go regulation output to the size of current of LED, guarantee that indoor light maintains set point.When daytime, ambient room light was very strong, the brightness value that illuminance transducer detects will exceed the set point of main control circuit 102, and the size of current exporting to LED will be reduced to zero by control circuit for pulse-width modulation 104, power switch circuit 107 by main control circuit 102 gradually.Until during indoor light illumination deficiency set point, main control circuit 102 just can be lighted by control LED automatically, and electric current increases gradually, until LED luminance reaches setting threshold values.When the external controllable silicon phase-cut dimmer of this control device input, control circuit for pulse-width modulation 104 will detect controllable silicon phase angle, thus the ON time of Modulating Power switching circuit 107 breaker in middle pipe, reach the object of adjustment bearing power, namely can set the maximal illumination of light fixture.In addition, LED can be switched to full power operation pattern by on-board switching continuous high-speed switch in controllable silicon phase-cut dimmer face on metope by user, give main control circuit 102 by RC delay circuit generation transient state and stable state height two kinds of level, main control circuit 102 is held time according to level and is judged and perform light sensation or non-light sensation pattern.
In the present embodiment, described in there is the particular circuit configurations of the LED control device of automatic brightness adjusting function as shown in Figure 2, comprising: resistance R1-R40, electric capacity C1-C22, electric capacity CY1, electric capacity CY2, electric capacity CY3, transformer L1, inductance L 2, inductance L 3, transformer L5, transformer L6, fuse F1, rectifier bridge BD1, diode D1-D13, triode Q1-Q4, photoelectrical coupler U1, dimmer, PDM keyer, micro-control unit, touch control shields, and illuminance transducer.
The LED control device with automatic brightness adjusting function that the present invention proposes can regulate LED self brightness in real time automatically according to ambient room light, guarantees that indoor light intensity remains on preset value all the time; Support controllable silicon light modulation, user can get rid of by the controllable silicon phase-cut dimmer on metope, touch control the illumination threshold values regulating LED; LED can be switched to full power operation pattern by the continuous high-speed switch of the ON/OFF switch on controllable silicon phase-cut dimmer panel simultaneously, meet the various demand of user, the present invention not only structure is simple, and cost is low, and easy to use, perfect in shape and function, energy-conserving and environment-protective.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (4)
1. one kind has the LED control device of automatic brightness adjusting function, it is characterized in that, comprise ambient light detection module, main control circuit, photoelectrical coupler, control circuit for pulse-width modulation, the first rectifying/filtering circuit, power input, power switch circuit, transformer and the second rectifying/filtering circuit; Described ambient light detection module one end connects the signal input part of main control circuit, connects the secondary coil of transformer after the other end is connected with main control circuit; The output of described main control circuit connects one end of photoelectrical coupler, and the other end of photoelectrical coupler connects control circuit for pulse-width modulation; The control end of described control circuit for pulse-width modulation connects power switch circuit control end, control circuit for pulse-width modulation power end connects the first rectifying/filtering circuit output, power switch circuit input, first rectifying/filtering circuit input connects power input, the primary coil of power switch circuit output connection transformer.
2. the LED control device with automatic brightness adjusting function according to claim 1, is characterized in that, also comprises controllable silicon phase-cut dimmer and touch control screen; Described controllable silicon phase-cut dimmer is electrically connected the first rectifying/filtering circuit input, and described touch control screen connects main control circuit.
3. the LED control device with automatic brightness adjusting function according to claim 2, is characterized in that, the panel of described controllable silicon phase-cut dimmer is provided with ON/OFF switch, by the mode of operation of described ON/OFF switching over LED.
4. according to the LED control device with automatic brightness adjusting function one of claims 1 to 3 Suo Shu, it is characterized in that, described ambient light detection module selects illuminance transducer; Described main control circuit comprises micro-control unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510452181.6A CN105007661A (en) | 2015-07-28 | 2015-07-28 | LED control device with automatic brightness regulating function |
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| CN201510452181.6A CN105007661A (en) | 2015-07-28 | 2015-07-28 | LED control device with automatic brightness regulating function |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201001216Y (en) * | 2007-01-24 | 2008-01-02 | 先礼群 | High power LED drive circuit |
| CN102014559A (en) * | 2010-11-19 | 2011-04-13 | 宁波龙源照明电器有限公司 | Light-emitting diode light source driving power supply |
| CN102474956A (en) * | 2009-08-07 | 2012-05-23 | 夏普株式会社 | Lighting equipment |
| US20130002156A1 (en) * | 2010-07-30 | 2013-01-03 | Melanson John L | Transformer-isolated led lighting circuit with secondary-side dimming control |
| CN204887576U (en) * | 2015-07-28 | 2015-12-16 | 无锡畅欧光电科技有限公司 | LED controlling means with automatic adjustting of lighteness function |
-
2015
- 2015-07-28 CN CN201510452181.6A patent/CN105007661A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201001216Y (en) * | 2007-01-24 | 2008-01-02 | 先礼群 | High power LED drive circuit |
| CN102474956A (en) * | 2009-08-07 | 2012-05-23 | 夏普株式会社 | Lighting equipment |
| US20130002156A1 (en) * | 2010-07-30 | 2013-01-03 | Melanson John L | Transformer-isolated led lighting circuit with secondary-side dimming control |
| CN102014559A (en) * | 2010-11-19 | 2011-04-13 | 宁波龙源照明电器有限公司 | Light-emitting diode light source driving power supply |
| CN204887576U (en) * | 2015-07-28 | 2015-12-16 | 无锡畅欧光电科技有限公司 | LED controlling means with automatic adjustting of lighteness function |
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Application publication date: 20151028 |
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