CN110366292A - The method for reducing stroboscopic after LED shines - Google Patents
The method for reducing stroboscopic after LED shines Download PDFInfo
- Publication number
- CN110366292A CN110366292A CN201910634432.0A CN201910634432A CN110366292A CN 110366292 A CN110366292 A CN 110366292A CN 201910634432 A CN201910634432 A CN 201910634432A CN 110366292 A CN110366292 A CN 110366292A
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- CN
- China
- Prior art keywords
- led
- circuit
- leds
- stroboscopic
- shines
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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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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
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
Abstract
A kind of method of stroboscopic after shining the invention discloses reduction LED, including substrate, circuit, the circuit is welded on substrate, the circuit includes more IC, the more IC series connection, multiple pins of every IC are separately connected LED, every IC and LED corresponding with the IC are encapsulated on corresponding circuit, every IC is located at corresponding plurality of LEDs side, when electric current passes through multiple IC, every IC can control electric current pass through connect with the IC plurality of LEDs/without the plurality of LEDs being connect with the IC, the more IC control corresponding multiple LED and open together, it closes together, part is opened or part is closed.Change the mode of LED parallel connection in conventional keyboard, pass through concatenated IC, LED connected to it is driven by every IC, each LED is controlled by independent IC, it realizes luminous synchronous between LED and LED, the time difference for reducing light emission time between LED and LED realizes more effective illumination effect, solves the problems, such as the screen flash that LED occurs when realizing light efficiency on keyboard.
Description
Technical field
The present invention relates to the methods for reducing stroboscopic after LED shines.
Background technique
Traditional keyboard LED structure: LED is parallel connection, and existing keyboard LED light effect gives LED pulse by PWM control
Signal simultaneously controls LED in parallel, and PWM carries out open and close to LED by low and high level, and each LED is sent out after being sequentially received signal
Light and light efficiency are presented, and pulse process signal is to LED for opens and closed circuit, having time between the first LED and last LED
Postpone (i.e. time difference), so will appear stroboscopic phenomenon.
Summary of the invention
To overcome disadvantages mentioned above, frequency after shining the purpose of the present invention is to provide a kind of reduction LED for solving stroboscopic phenomenon
The method of sudden strain of a muscle.
In order to reach the goals above, the technical solution adopted by the present invention is that: a method of reduce LED shine after stroboscopic,
It is characterized by comprising substrate, circuit, the circuit is welded on substrate, and the circuit includes more IC, the more IC string
Connection, multiple pins of every IC be separately connected LED, every IC and LED corresponding with the IC be encapsulated in it is corresponding
Circuit on, every IC is located at corresponding plurality of LEDs side, and when electric current passes through multiple IC, every IC can be controlled
Electric current processed passes through the plurality of LEDs that connect with the IC/without the plurality of LEDs connecting with the IC, and it is right with it that the more IC are controlled
The multiple LED answered are opened together, are closed together, part is opened or part is closed.
The beneficial effect that the present invention reduces the method for stroboscopic after LED shines is to change the side of LED parallel connection in conventional keyboard
Formula drives LED connected to it, each LED to be controlled by independent IC by concatenated IC by every IC, realize LED and LED it
Between shine and synchronize, reduce the time difference of light emission time between LED and LED, realize more effective illumination effect, solve on keyboard
The screen flash problem that LED occurs when realizing light efficiency.
Preferably, the staircase waveform for using two ranks to rise or fall to the pulse signal that IC is provided, the staircase waveform is by least
Two pulses are superimposed and realize.It can and be made to keep pulse that can reduce screen flash improvement luminous efficiency with this waveform.
Preferably, the circuit further includes light adjusting circuit, and to adjust the brightness of every LED, the light adjusting circuit includes
It is sequentially connected to receive dim signal and generate the first analog signal digital analog converter, to adjust the first simulation
Signal revolution rate simultaneously outputs it the control circuit of the second analog signal, driving circuit, and first analog signal has multiple
The step voltage of consecutive variations, the control circuit control the revolution rate of the first analog signal so that the slope of step voltage compared with
To be smooth, the driving circuit is connect with every IC respectively.Driving circuit can incrementally adjust IC, be controlled by IC luminous
The brightness of the brightness of element, LED can be relatively evenly adjusted, and reduce the phenomenon that fluorescent screen flashes in actual use.
Preferably, the LED is adopting surface mounted LED or is the LED with pin.
Preferably, single sudden strain of a muscle control device is connected between the pin of every LED and IC, which includes AC, rectification
Pipe and capacitor, the AC, rectifying tube and LED light are cascaded, and are in parallel with capacitor.When the LED single flashing light structure shines
It will not be made to generate the equation of light with other LED light in running lamp, and good heat dissipation effect, service life are long.
Preferably, the IC is distributed on substrate with a matrix type.
Detailed description of the invention
Fig. 1 is the top view of the present embodiment；
Fig. 2 is the main view of the present embodiment；
Fig. 3 is the cascaded structure schematic diagram of the present embodiment.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to shown in attached drawing 1-3, the method that one of the present embodiment reduces stroboscopic after LED shines, including substrate 1, electricity
Road, circuit weld on substrate 1, and circuit includes more IC2, and more IC2 connect, and IC is distributed on substrate 1 with a matrix type,
Multiple pins of every IC2 are separately connected LED3, and the LED3 in the present embodiment can be adopting surface mounted LED 3 or be with pin
LED3, every IC2 and LED3 corresponding with the IC2 are encapsulated on corresponding circuit, and every IC2 is located at corresponding more
3 side of LED, when electric current passes through multiple IC2, every IC2 can control electric current pass through the plurality of LEDs 3/ that is connect with the IC2 without
Cross the plurality of LEDs 3 connecting with the IC2, more IC2 control corresponding multiple LED3 open, close together together, portion it is separated
It opens or part is closed.The present embodiment changes the mode of LED3 parallel connection in conventional keyboard, by concatenated IC2, is driven by every IC2
LED3 connected to it, each LED3 are controlled by independent IC2, realize LED3 and LED3 between shine it is synchronouss, reduce LED3 and
The time difference of light emission time between LED3 realizes more effective illumination effect, solves LED3 on keyboard and goes out when realizing light efficiency
Existing screen flash problem.
Improve luminous efficiency to further decrease screen flash, the pulse signal provided to IC2 can be risen using two ranks
Or the staircase waveform of decline, staircase waveform is superimposed by least two pulses and realizes.
In order to further reduce the phenomenon that flashing in actual use, circuit may also include light adjusting circuit, every to adjust
The brightness of LED 3, light adjusting circuit include the sequentially connected digital mould to receive dim signal and generate the first analog signal
Intend converter, to adjust the first analog signal revolution rate and output it the control circuit of the second analog signal, driving circuit,
First analog signal has the step voltage of multiple consecutive variations, and control circuit controls the revolution rate of the first analog signal, so that
The slope of step voltage is more smooth, and driving circuit is connect with every IC2 respectively.Driving circuit can incrementally adjust IC2, lead to
IC2 is crossed to control the brightness of light-emitting component, the brightness of LED3 can be relatively evenly adjusted, and reduce fluorescence screen flash in actual use
Bright phenomenon.
In addition, can be also connected between every LED 3 and the pin of IC2 it is single dodge control device, which includes AC, whole
Flow tube and capacitor, AC, rectifying tube and LED3 lamp string are linked togather, and are in parallel with capacitor.When the LED3 single flashing light structure shines
It will not be made to generate the equation of light with other LED3 lamps in running lamp, and good heat dissipation effect, service life are long.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention
The equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.
Claims (6)
1. a kind of method for reducing stroboscopic after LED shines, including substrate (1), circuit, the circuit are welded on substrate (1),
Be characterized in that: the circuit includes more IC (2), more IC (2) series connection, multiple pins difference of every IC (2)
It connects LED (3), every IC (2) and LED (3) corresponding with IC (2) are encapsulated on corresponding circuit, every institute
It states IC (2) and is located at corresponding plurality of LEDs (3) side, when electric current passes through multiple IC (2), every IC (2) can control electricity
The plurality of LEDs (3) that stream process is connect with the IC (2)/without the plurality of LEDs (3) being connect with the IC (2), the more IC (2)
Corresponding multiple LED (3) are controlled to open, close together together, partially opening or partially closing.
2. the method according to claim 1 for reducing stroboscopic after LED shines, it is characterised in that: the pulse provided to IC (2)
The staircase waveform that signal uses two ranks to rise or fall, the staircase waveform is superimposed by least two pulses and realizes.
3. the method according to claim 1 for reducing stroboscopic after LED shines, it is characterised in that: the circuit further includes adjusting
Optical circuit, to adjust the brightness of every LED (3), the light adjusting circuit includes sequentially connected to receive dim signal simultaneously
Generate the digital analog converter of the first analog signal, to adjust the first analog signal revolution rate and output it the second simulation
The control circuit of signal, driving circuit, first analog signal have the step voltage of multiple consecutive variations, the control electricity
Road controls the revolution rate of the first analog signal so that the slope of step voltage is more smooth, the driving circuit respectively with every
IC (2) connection.
4. the method according to claim 1 for reducing stroboscopic after LED shines, it is characterised in that: the LED (3) is patch
Formula LED (3) is the LED (3) with pin.
5. the method according to claim 1 for reducing stroboscopic after LED shines, it is characterised in that: every LED (3) with
Be connected between the pin of IC (2) it is single dodge control device, which includes AC, rectifying tube and capacitor, the AC, rectifying tube with
LED (3) lamp string is linked togather, and is in parallel with capacitor.
6. the method according to claim 1 for reducing stroboscopic after LED shines, it is characterised in that: the IC is with the shape of matrix
Formula is distributed on substrate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634432.0A CN110366292A (en) | 2019-07-15 | 2019-07-15 | The method for reducing stroboscopic after LED shines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634432.0A CN110366292A (en) | 2019-07-15 | 2019-07-15 | The method for reducing stroboscopic after LED shines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110366292A true CN110366292A (en) | 2019-10-22 |
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ID=68219169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910634432.0A Pending CN110366292A (en) | 2019-07-15 | 2019-07-15 | The method for reducing stroboscopic after LED shines |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551073A (en) * | 1998-09-04 | 2004-12-01 | 松下电器产业株式会社 | Plasma display panel driving method and plasma display panel apparatus |
| CN201042097Y (en) * | 2007-05-29 | 2008-03-26 | 李树强 | LED circuit for single line cascading multi-level gray full color floating charge |
| CN201273489Y (en) * | 2008-05-12 | 2009-07-15 | 伍铁军 | Follow spotlight strip |
| CN202002003U (en) * | 2011-01-13 | 2011-10-05 | 陶沿蓉 | LED single flashing light structure |
| CN102364211A (en) * | 2011-10-27 | 2012-02-29 | 杭州希和光电子有限公司 | Light-emitting diode (LED) module |
| CN104992665A (en) * | 2015-06-30 | 2015-10-21 | 苏州合欣美电子科技有限公司 | LED display screen drive circuit |
| CN105813255A (en) * | 2015-01-16 | 2016-07-27 | 安恩科技股份有限公司 | Light-emitting diode lighting device with synchronized PWM dimming control |
| CN106804081A (en) * | 2015-11-26 | 2017-06-06 | 华硕电脑股份有限公司 | Light adjusting circuit and dimming controlling method |
-
2019
- 2019-07-15 CN CN201910634432.0A patent/CN110366292A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551073A (en) * | 1998-09-04 | 2004-12-01 | 松下电器产业株式会社 | Plasma display panel driving method and plasma display panel apparatus |
| CN201042097Y (en) * | 2007-05-29 | 2008-03-26 | 李树强 | LED circuit for single line cascading multi-level gray full color floating charge |
| CN201273489Y (en) * | 2008-05-12 | 2009-07-15 | 伍铁军 | Follow spotlight strip |
| CN202002003U (en) * | 2011-01-13 | 2011-10-05 | 陶沿蓉 | LED single flashing light structure |
| CN102364211A (en) * | 2011-10-27 | 2012-02-29 | 杭州希和光电子有限公司 | Light-emitting diode (LED) module |
| CN105813255A (en) * | 2015-01-16 | 2016-07-27 | 安恩科技股份有限公司 | Light-emitting diode lighting device with synchronized PWM dimming control |
| CN104992665A (en) * | 2015-06-30 | 2015-10-21 | 苏州合欣美电子科技有限公司 | LED display screen drive circuit |
| CN106804081A (en) * | 2015-11-26 | 2017-06-06 | 华硕电脑股份有限公司 | Light adjusting circuit and dimming controlling method |
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Application publication date: 20191022 |