CN109561545A - A kind of brightness controlling device and brightness control method - Google Patents
A kind of brightness controlling device and brightness control method Download PDFInfo
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- CN109561545A CN109561545A CN201811420336.8A CN201811420336A CN109561545A CN 109561545 A CN109561545 A CN 109561545A CN 201811420336 A CN201811420336 A CN 201811420336A CN 109561545 A CN109561545 A CN 109561545A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001172 regenerating effect Effects 0.000 claims abstract description 59
- 230000006698 induction Effects 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005674 electromagnetic induction Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 210000004087 cornea Anatomy 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 241000519996 Teucrium chamaedrys Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
This application discloses a kind of brightness controlling device and brightness control methods, wherein brightness controlling device is used to control the brightness of light emitting diode, wherein light emitting diode is located on sensor circuit, and the sensor circuit has induction coil, comprising: energy regenerative circuit and processor；The energy regenerative circuit has filter and the energy regenerative coil corresponding to the induction coil, the filter and the energy regenerative coils from parallel connection of coils, the processor is used for the AC-input voltage according to the voltage signal control energy regenerative circuit after the filter filtering, can be achieved with the technical effect of dimming function to play and not need the loading light adjusting circuit on light emitting device；The accurate adjusting to LED luminance can be carried out on the basis of not outer plus complicated light adjusting circuit.
Description
Technical field
This application involves lighting area is arrived, more particularly to a kind of brightness controlling device and brightness control method.
Background technique
Wireless energy regenerative illumination has good application prospect in medical field, for example is deployed in the passive device of cornea and can shine
Bright eyeground, in this way help fundus operation and inspection, such device need to realize the reception of energy, driving in minimum space
Luminescent device etc., so extremely simple device are difficult to carry light adjusting circuit, but need again in actual use real by external control
The adjusting and stabilization of existing illumination.The technical solution that the prior art does not solve the above problems.
Summary of the invention
The main purpose of the application is to provide a kind of brightness controlling device and brightness control method, can play and not need sending out
Light adjusting circuit is loaded on electro-optical device can be achieved with the technical effect of dimming function.
The application provides a kind of brightness controlling device, for controlling the brightness of light emitting diode, wherein light emitting diode position
In on sensor circuit, the sensor circuit has induction coil, comprising: energy regenerative circuit and processor；The energy regenerative circuit has
Filter and energy regenerative coil corresponding to the induction coil, the filter and the energy regenerative coils from parallel connection of coils, the processor
For the AC-input voltage according to the voltage signal control energy regenerative circuit after the filter filtering.
Further, the AC-input voltage includes sinusoidal voltage, cosine alternating voltage or triangular wave exchange
Voltage.
Further, including rectification circuit, for being rectified to the AC-input voltage, the rectification circuit and institute
State the coupling of energy regenerative circuit.
Further, the rectification circuit is full-wave rectifying circuit.
Further, the filter is high-pass filter, and the cutoff frequency of the high-pass filter is higher than the exchange
The frequency of input voltage.
The application provides a kind of brightness control method, using the brightness of brightness controlling device control light emitting diode, wherein
Light emitting diode is located on sensor circuit, and the sensor circuit has an induction coil, brightness controlling device include energy regenerative circuit with
Processor, the energy regenerative circuit have filter and the energy regenerative coil corresponding to the induction coil, the filter with it is described
Energy regenerative coils from parallel connection of coils, comprising:
Voltage signal after receiving the filter filtering；
The brightness of light emitting diode is controlled according to the filtered voltage signal adjustment AC-input voltage.
Further, the filter is high-pass filter, the voltage signal after the reception filter filtering
Step includes:
Receive the voltage signal after high pass filter filters.
Further, described that AC-input voltage is adjusted to control light emitting diode according to the filtered voltage signal
Brightness the step of include:
Adjustment | X1-X2 | the value of/T is to control the brightness of light emitting diode；
Wherein, X1, X2 are in one of the AC-input voltage or half period, about AC-input voltage
The time axial coordinate in two voltage sites of the filtered voltage signal of one peak symmetry；T is exchange input
The period of voltage.
Further, the adjustment | X1-X2 | the value of/T includes: with the step of controlling the brightness of light emitting diode
The AC-input voltage is modulated by the way of pulse width modulated or pulse amplitude modulation, so as to adjust | X1-X2 |/T
Value to control the brightness of light emitting diode.
Further, the adjustment | X1-X2 | the value of/T includes: with the step of controlling the brightness of light emitting diode
The mode for the amplitude for adjusting the AC-input voltage is used to adjust | X1-X2 | the value of/T is to control light emitting diode
Brightness.
The principle of the application include: using energy regenerative circuit to sensor circuit carry out wireless energy regenerative when, energy regenerative coil (according to
Electromagnetic induction energy regenerative) electric current and voltage can with the load of induction coil change and change, when on sensor circuit have shine two
When pole pipe (LED), LED, which is opened, can generate apparent, difference in the out of phase of the AC signal on energy regenerative coil with when shutdown
In the shake (contortion site of distortion signal) of input exchange signal, in a cycle of AC-input voltage, about exchange
The time shaft difference of two contortion sites of the distortion signal of one peak symmetry of input voltage is exactly the work of diode
Make the time, the ratio with the period of AC-input voltage is exactly the ratio that works, and senses this than the working strength that is known that LED, i.e.,
Brightness sets and controls the brightness that LED is lived in this work than that can preset with stability contorting.
Wherein, the voltage signal that distortion signal can obtain after the input exchange signal described in the filters filter is come table
Show.
Specifically, work ratio can use formula: | X1-X2 |/T indicates that (referring to fig. 4, Fig. 5, wherein the waveform of Fig. 4 will not
It is handled through over commutation, therefore X1 and X2 are existed only in above X-axis, the waveform of Fig. 5 will be handled through over commutation, to make above X-axis
Waveform overturn to above X-axis, therefore X1 and X2 are not only present in above X-axis, are also present in below X-axis), wherein X1, X2 are
In one of the AC-input voltage or half period, the filter of a peak symmetry about AC-input voltage
The time axial coordinate in two voltage sites (distorting two contortion sites of signal) of the voltage signal after wave；T is the friendship
Flow the period of input voltage.
According to brightness controlling device provided by the present application and brightness control method, it can play and not need to fill on light emitting device
Carrying light adjusting circuit can be achieved with the technical effect of dimming function；It can be carried out pair on the basis of not outer plus complicated light adjusting circuit
The accurate adjusting of LED luminance.
Detailed description of the invention
Fig. 1 is the sensor circuit of one embodiment of application and the energy regenerative circuit simplified schematic diagram of brightness controlling device；
Fig. 2 is the brightness controlling device structural schematic block diagram of one embodiment of the application；
Fig. 3 is the flow diagram of the brightness control method of one embodiment of the application；
Fig. 4 is the voltage-time curve figure of the ac input signal of the energy regenerative circuit of one embodiment of the application；
Fig. 5 is the voltage-time curve figure of the ac input signal of the energy regenerative circuit of one embodiment of the application.
Appended drawing reference concrete meaning is as follows:
1: light emitting diode；2: induction coil；3: energy regenerative coil；4: filter；5: AC-input voltage；10: induced electricity
Road；20: energy regenerative circuit；30: processor；100: brightness controlling device.
The embodiments will be further described with reference to the accompanying drawings for realization, functional characteristics and the advantage of the application purpose.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the application, it is not used to limit the application.
Embodiments herein is described below in detail, those skilled in the art of the present technique are appreciated that unless expressly stated, this
In use singular " one ", "one", " described " and "the" may also comprise plural form.It is to be further understood that
Wording " comprising " used in the description of the present application refers to that there are the feature, integer, step, operation, element and/or groups
Part, but it is not excluded that in the presence of or add other one or more features, integer, step, operation, element, component and/or they
Group.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in the application fields.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here
To explain.
Referring to Fig. 1,2, a kind of brightness controlling device provided by the embodiments of the present application, for controlling the bright of light emitting diode
Degree, wherein light emitting diode is located on sensor circuit, and the sensor circuit has induction coil, comprising: energy regenerative circuit and processing
Device；The energy regenerative circuit has filter and the energy regenerative coil corresponding to the induction coil, the filter and the energy regenerative
Coils from parallel connection of coils, the processor are used to input electricity according to the exchange of the voltage signal control energy regenerative circuit after the filter filtering
Pressure.
Wherein, brightness controlling device feeds energy to the light emitting diode on sensor circuit by energy regenerative circuit.Induction
Circuit refers to the circuit that can incude and receive the energy of energy regenerative circuit feeding, including uses magnetic resonance technology, inductive coupling
Technology, magnetic (field) manifold type, electricity (field) manifold type, electromagnetic radiation formula (such as solar radiation), mechanical wave manifold type (ultrasound), electromagnetism
The circuit of induction technology etc., such as can be the circuit for including electromagnetic induction coil, experienced by electromagnetic induction principle and is received
Energy feeding, corresponding energy regenerative circuit can be for example the circuit for including electromagnetism feeding coil, be fed by electromagnetic induction principle
To energy feeding.Distortion signal (can be indicated with by input exchange signal described in filters filter) refers to and works as light emitting diode
When opening or closing, the abnormal shake that ac input signal occurs, and since light emitting diode opens or closes all extremely short
It is completed in time, therefore the generation for distorting signal is also completed in a very short period of time, thus distorts the very high frequency of signal, be much higher than
The frequency of ac input signal (ac voltage signal).
Wherein, light emitting diode can be used for medical field, in the device for being only capable of accommodating sensor circuit, such as positioned at portion
It affixes one's name on the passive device of cornea, on the midget plant for going deep into body cavity etc..Light emitting diode can be used for other field,
It is preferably placed on the device for only accommodating circuit with little space.
Brightness controlling device includes energy regenerative circuit and processor, has filter on energy regenerative circuit, processor is according to
The AC-input voltage of voltage signal control energy regenerative circuit after filter filtering.Wherein, AC-input voltage can be any
The alternating voltage of form, including sinusoidal voltage, cosine alternating voltage or triangular wave alternating voltage, (waveform is triangle
Alternating voltage).Wherein, filter is that can will arbitrarily distort the filter of signal screening out, preferably high-pass filter, the height
The cutoff frequency of bandpass filter is higher than the frequency of the AC-input voltage, and is less than the frequency of distortion signal, so as to mistake
The AC-input voltage is filtered, filters out distortion signal (since the frequency of distortion signal will be much higher than the frequency of AC-input voltage
Rate, therefore not will be filtered).
Further, brightness controlling device further includes rectification circuit, for being rectified to the AC-input voltage, institute
It states rectification circuit and the energy regenerative circuit couples.Rectification circuit for example can be excellent for half-wave rectifying circuit, full-wave rectifying circuit etc.
Select full-wave rectifying circuit.To increase the working time of light emitting diode, increase capacity usage ratio.
Herein illustrate the present embodiment brightness controlling device application method:
1, energy regenerative circuit is inputted with sinusoidal AC voltage signal；
2, sensor circuit incudes and receives energy；
3, when the voltage of the light emitting diode on sensor circuit is higher than the threshold voltage of light emitting diode, light emitting diode
It opens；The load suddenly change of sensor circuit at this time, and the electric current and voltage of energy regenerative circuit can change with the load of receiving coil
And change, therefore the sine voltage of energy regenerative circuit will appear apparent shake (distortion)；Similarly, when shining on sensor circuit
When the voltage of diode is lower than the threshold voltage of light emitting diode, light emitting diode is closed, the sine voltage of energy regenerative circuit
It will appear apparent shake (distortion)；
4, filter is filtered to obtain distortion signal, sends distortion signal to processor；
5, processor is according to the distortion signal adjustment sinusoidal voltage (width and AC-input voltage of adjustment distortion point
The ratio in period), the brightness control of light emitting diode can be realized；The method wherein adjusted includes using pulse width modulated, pulse tune
Frequently, the mode of the amplitude of pulse amplitude modulation or the adjustment AC-input voltage is to control the brightness of light emitting diode.
According to brightness controlling device provided by the present application, it can play and not need to load light adjusting circuit energy on light emitting device
Realize the technical effect of dimming function；The accurate tune to LED luminance can be carried out on the basis of not outer plus complicated light adjusting circuit
Section.
Referring to Fig. 3, a kind of brightness control method provided by the embodiments of the present application, using brightness controlling device control luminous two
The brightness of pole pipe, wherein light emitting diode is located on sensor circuit, and the sensor circuit has induction coil, brightness controlling device
Including energy regenerative circuit and processor, the energy regenerative circuit has filter and the energy regenerative coil corresponding to the induction coil, institute
State filter and the energy regenerative coils from parallel connection of coils, comprising:
S1, the voltage signal after the filter filtering is received；
S2, the brightness that light emitting diode is controlled according to the filtered voltage signal adjustment AC-input voltage.
Wherein, brightness controlling device feeds energy to the light emitting diode on sensor circuit by energy regenerative circuit.Induction
Circuit refers to the circuit that can incude and receive the energy of energy regenerative circuit feeding, including uses magnetic resonance technology, inductive coupling
Technology, magnetic (field) manifold type, electricity (field) manifold type, electromagnetic radiation formula (such as solar radiation), mechanical wave manifold type (ultrasound), electromagnetism
The circuit of induction technology etc., such as can be the circuit for including electromagnetic induction coil, experienced by electromagnetic induction principle and is received
Energy feeding, corresponding energy regenerative circuit can be for example the circuit for including electromagnetism feeding coil, be fed by electromagnetic induction principle
To energy feeding.Distortion signal (can be indicated with by input exchange signal described in filters filter) refers to and works as light emitting diode
When opening or closing, the abnormal shake that ac input signal occurs, and since light emitting diode opens or closes all extremely short
It is completed in time, therefore the generation for distorting signal is also completed in a very short period of time, thus distorts the very high frequency of signal, be much higher than
The frequency of ac input signal (ac voltage signal).
Wherein, light emitting diode can be used for medical field, in the device for being only capable of accommodating sensor circuit, such as positioned at portion
It affixes one's name on the passive device of cornea, on the midget plant for going deep into body cavity etc..Light emitting diode can be used for other field,
It is preferably placed on the device for only accommodating circuit with little space.
Wherein, AC-input voltage can be any form of alternating voltage, including sinusoidal voltage, cosine alternating current
Pressure or triangular wave alternating voltage (alternating voltage that waveform is triangle).
Voltage signal such as above-mentioned steps S1, after receiving the filter filtering.Wherein, filter is that can will arbitrarily distort
The cutoff frequency of the filter that signal screening comes out, preferably high-pass filter, the high-pass filter is inputted higher than the exchange
The frequency of voltage, and be less than distortion signal frequency, so as to filter the AC-input voltage, obtain distortion signal (by
To be much higher than the frequency of AC-input voltage in the frequency of distortion signal, therefore not will be filtered).Filter is filtered place
Reason obtains distortion signal.Specific method includes: using filter, screening removal ac input signal, to obtain distortion letter
Number.
Such as above-mentioned steps S2, AC-input voltage is adjusted to control light emitting diode according to the filtered voltage signal
Brightness.Distort signal reaction open and close time point of light emitting diode, adjust accordingly can control it is luminous
The working time of diode, such as under the premise of the period is constant, increase distortion signal in a cycle of AC-input voltage
The width of two contortion sites of an interior peak symmetry about AC-input voltage, so that it may enhance the bright of light emitting diode
Degree；Brightness that is on the contrary then reducing light emitting diode.
Further, brightness controlling device further includes rectification circuit, for being rectified to the AC-input voltage, institute
It states rectification circuit and the energy regenerative circuit couples.Rectification circuit for example can be excellent for half-wave rectifying circuit, full-wave rectifying circuit etc.
Select full-wave rectifying circuit.To increase the working time of light emitting diode, increase capacity usage ratio.
In one embodiment, above-mentioned steps S2 includes:
S1, adjustment | X1-X2 | the value of/T is to control the brightness of light emitting diode；
Wherein, X1, X2 are in one of the AC-input voltage or half period, about AC-input voltage
The time axial coordinate in two voltage sites of the filtered voltage signal of one peak symmetry；T is exchange input
The period of voltage.
AC-input voltage curve shown in Figure 4, wherein the light emitting diode when voltage is Uo, on sensor circuit
Voltage be just threshold voltage.Therefore AC-input voltage can be shaken when voltage is Uo, i.e. contortion site (Fig. 4, figure
Shown in 5, only legend for ease of understanding, actual distortion shake can be the waveform of arbitrary shape, but contortion site when
Between axial coordinate be it is certain, wherein the waveform of Fig. 4 will not pass through rectification processing, therefore X1 and X2 are existed only in above X-axis, Fig. 5
Waveform will be handled through over commutation, to make the waveform above X-axis overturn to above X-axis, therefore X1 and X2 are not only present in X-axis
Top is also present in below X-axis), the time axial coordinate of contortion site is respectively X1, X2, when voltage is within the X1-X2 period,
Light emitting diode is in the open state.As shown in Figure 4,5, | X1-X2 | it is the working time of light emitting diode, | X1-X2 |/T
The as work ratio of light emitting diode, tunes up | X1-X2 | the value of/T can enhance the brightness of light emitting diode；Turn down | X1-X2 |/
The value of T can weaken the brightness of light emitting diode.
In one embodiment, above-mentioned steps S21 includes:
S211, the AC-input voltage is modulated by the way of pulse width modulated or pulse amplitude modulation, so as to adjust | X1-
X2 | the value of/T is to control the brightness of light emitting diode.
Referring to fig. 4, by previous embodiment it is found that control | X1-X2 | the value of/T is the brightness of controllable light emitting diode.Tool
Body, the AC-input voltage is modulated by the way of pulse width modulated or pulse amplitude modulation, to control light emitting diode
Brightness.
In one embodiment, above-mentioned steps S2 includes:
S212, the mode for the amplitude for adjusting the AC-input voltage is used to adjust | X1-X2 | the value of/T is luminous to control
The brightness of diode.
Referring to fig. 4, by previous embodiment it is found that control | X1-X2 | the value of/T is the brightness of controllable light emitting diode.Cause
This adjusts the amplitude of the AC-input voltage, can in the case where cycle T is constant, adjust | X1-X2 | value, reach control
The purpose of the brightness of light emitting diode.
Further, processor can also carry out translation processing to AC-input voltage curve, to change exchange input
The intersection point of voltage curve and U=Uo achievees the purpose that the brightness for controlling light emitting diode to change the value of X1, X2.
The brightness control method provided according to the present invention can play and not need to load light adjusting circuit energy on light emitting device
Realize the technical effect of dimming function；The accurate tune to LED luminance can be carried out on the basis of not outer plus complicated light adjusting circuit
Section.
The foregoing is merely preferred embodiment of the present application, are not intended to limit the scope of the patents of the application, all utilizations
Equivalent structure or equivalent flow shift made by present specification and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, similarly include in the scope of patent protection of the application.
Claims (10)
1. a kind of brightness controlling device, for controlling the brightness of light emitting diode, wherein light emitting diode is located on sensor circuit,
The sensor circuit has induction coil characterized by comprising energy regenerative circuit and processor；The energy regenerative circuit has filter
Wave device and energy regenerative coil corresponding to the induction coil, the filter and the energy regenerative coils from parallel connection of coils, the processor are used
In the AC-input voltage according to the voltage signal control energy regenerative circuit after the filter filtering.
2. brightness controlling device according to claim 1, which is characterized in that the AC-input voltage includes simple alternating current
Voltage, cosine alternating voltage or triangular wave alternating voltage.
3. brightness controlling device according to claim 1, which is characterized in that including rectification circuit, for the exchange
Input voltage is rectified, and the rectification circuit and the energy regenerative circuit couple.
4. brightness controlling device according to claim 3, which is characterized in that the rectification circuit is full-wave rectifying circuit.
5. brightness controlling device according to claim 1-4, which is characterized in that the filter is high-pass filtering
Device, the cutoff frequency of the high-pass filter are higher than the frequency of the AC-input voltage.
6. a kind of brightness control method controls the brightness of light emitting diode using brightness controlling device, wherein light emitting diode position
In on sensor circuit, the sensor circuit has induction coil, and brightness controlling device includes energy regenerative circuit and processor, the feedback
Energy circuit has filter and the energy regenerative coil corresponding to the induction coil, the filter and the energy regenerative coils from parallel connection of coils,
It is characterised by comprising:
Voltage signal after receiving the filter filtering；
The brightness of light emitting diode is controlled according to the filtered voltage signal adjustment AC-input voltage.
7. brightness control method according to claim 6, which is characterized in that the filter is high-pass filter, described
The step of voltage signal after receiving the filter filtering includes:
Receive the voltage signal after high pass filter filters.
8. according to the described in any item brightness control methods of claim 6-7, which is characterized in that described according to described filtered
Voltage signal adjusts AC-input voltage with the step of controlling the brightness of light emitting diode
Adjustment | X1-X2 | the value of/T is to control the brightness of light emitting diode；
Wherein, X1, X2 are one in one of the AC-input voltage or half period, about AC-input voltage
The time axial coordinate in two voltage sites of the filtered voltage signal of peak symmetry；T is the AC-input voltage
Period.
9. brightness control method according to claim 8, which is characterized in that the adjustment | X1-X2 | the value of/T is to control
The step of brightness of light emitting diode includes:
The AC-input voltage is modulated by the way of pulse width modulated or pulse amplitude modulation, so as to adjust | X1-X2 | the value of/T
To control the brightness of light emitting diode.
10. brightness control method according to claim 8, which is characterized in that the adjustment | X1-X2 | the value of/T is to control
The step of brightness of light emitting diode includes:
The mode for the amplitude for adjusting the AC-input voltage is used to adjust | X1-X2 | the value of/T is to control the bright of light emitting diode
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420336.8A CN109561545A (en) | 2018-11-26 | 2018-11-26 | A kind of brightness controlling device and brightness control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420336.8A CN109561545A (en) | 2018-11-26 | 2018-11-26 | A kind of brightness controlling device and brightness control method |
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| CN109561545A true CN109561545A (en) | 2019-04-02 |
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| CN201811420336.8A Pending CN109561545A (en) | 2018-11-26 | 2018-11-26 | A kind of brightness controlling device and brightness control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971703A (en) * | 2008-03-24 | 2011-02-09 | 东芝照明技术株式会社 | Power supply unit and lighting fixture with the same |
| US20140077715A1 (en) * | 2012-09-20 | 2014-03-20 | Silicon Works Co., Ltd. | System control unit, led driver including the system control unit, and method of controlling static current of the led driver |
| US20140111108A1 (en) * | 2012-09-20 | 2014-04-24 | Silicon Works Co., Ltd. | System control unit, led driver including the system control unit, and method of controlling static current of the led driver |
| CN103857148A (en) * | 2012-11-30 | 2014-06-11 | 硅工厂股份有限公司 | Power supply apparatus for LED lighting and LED lighting apparatus using the same |
| CN209693099U (en) * | 2018-11-26 | 2019-11-26 | 杨松 | A kind of brightness controlling device |
-
2018
- 2018-11-26 CN CN201811420336.8A patent/CN109561545A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971703A (en) * | 2008-03-24 | 2011-02-09 | 东芝照明技术株式会社 | Power supply unit and lighting fixture with the same |
| US20140077715A1 (en) * | 2012-09-20 | 2014-03-20 | Silicon Works Co., Ltd. | System control unit, led driver including the system control unit, and method of controlling static current of the led driver |
| US20140111108A1 (en) * | 2012-09-20 | 2014-04-24 | Silicon Works Co., Ltd. | System control unit, led driver including the system control unit, and method of controlling static current of the led driver |
| CN103857148A (en) * | 2012-11-30 | 2014-06-11 | 硅工厂股份有限公司 | Power supply apparatus for LED lighting and LED lighting apparatus using the same |
| CN209693099U (en) * | 2018-11-26 | 2019-11-26 | 杨松 | A kind of brightness controlling device |
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