CN104411061B - Driving device and driving method - Google Patents
Driving device and driving method Download PDFInfo
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- CN104411061B CN104411061B CN201410712133.1A CN201410712133A CN104411061B CN 104411061 B CN104411061 B CN 104411061B CN 201410712133 A CN201410712133 A CN 201410712133A CN 104411061 B CN104411061 B CN 104411061B
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Abstract
The invention is applicable to the field of LED lighting, and provides a driving device and a driving method. The driving device comprises a regulating and controlling module and a plurality of constant-current output modules, wherein the regulating and controlling module is used for receiving electric signals, used for adjusting driving signals output to the constant-current output modules according to opening frequency that opening actions are detected from the electric signals every time, and used for selectively powering on one or more constant-current output modules according to the driving signals; the opening frequency is the frequency that the opening actions are already detected from the electric signals; the constant-current output modules are used for outputting constant direct current to the LED lamp when being selectively powered on by the driving signals. Thereof, when the opening action is executed each time, the regulating and controlling module reselects that constant direct current is output to the LED lamp from which constant-current output modules, so that the magnitude of the direct current flowing into the LED lamp is changed, and the brightness of the LED is adjusted.
Description
Technical field
The invention belongs to field of LED illumination, more particularly to a kind of driving means and driving method.
Background technology
In recent years, light fixture not only can be used as lighting apparatus, be also used as decoration and used.With people's quality of life
Raising, in light fixture used in decoration, it is desirable to which the brightness of lamp luminescence can be adjusted with the needs of scene, or light fixture send out
The color of light with the needs of user with can set.
At present, the implementation of the brightness or color that adjust lamp luminescence has various, and such as PWM light modulations, analog linearity are adjusted
Light, controllable silicon light modulation etc.；But these dimming modes are required for special light-adjusting module to realize, with original lighting lamp system
Poor compatibility, application scenario limitation is big, and high cost.
The content of the invention
For the problem described in background technology, it is an object of the invention to provide a kind of driving means and driving method, with
Number of times is opened (i.e. according to the controlling switch of light fixture：The number of times for opening or closing) adjustment light fixture brightness or colour temperature.
In a first aspect, the present invention provides a kind of driving means, the driving means are electrically connected with the LED in light fixture, institute
Stating driving means includes：Regulation and control module and multiple constant current output modules, the regulation and control module respectively with constant current output each described
Module is electrically connected, and the constant current output module is electrically connected with the LED；
The regulation and control module is used for：Electric signal is received, is detected from the electric signal start secondary according to opening when making every time
Number adjusts the drive signal that it is exported to the constant current output module, and with the drive signal one or more described constant currents are gated
Output module, the number of times of opening is：The number of times for starting work is had detected that from the electric signal；
The constant current output module is used for：When being gated by the drive signal, to the direct current of the LED output constant current
Electricity.
Second aspect, the present invention provides a kind of light fixture, and the light fixture includes above-mentioned driving means.
The third aspect, the present invention provides a kind of driving method, is applied to the light fixture with one or more LEDs, described
Driving method includes：
Regulation and control module receive electric signal, detect from the electric signal every time start when making according to open number of times adjust its to
The drive signal of the constant current output module output, with the drive signal one or more described constant current output modules are gated,
The number of times of opening is：The number of times for starting work is had detected that from the electric signal；
Constant current output module when being gated by the drive signal, to the direct current of the LED output constant current.
Beneficial effects of the present invention：Perform every time and start work, which constant current output module is regulation and control module is all reselected by
To the direct current of LED output constant current, so as to change the galvanic size of current for flowing into LED, realization lights to LED
The adjustment of brightness.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to embodiment or description of the prior art
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can be with according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the structure chart of driving means provided in an embodiment of the present invention；
Fig. 2 be Fig. 1 driving means in regulate and control module 1 a kind of optional instance graph；
Fig. 3 is a kind of exemplary application map of driving means provided in an embodiment of the present invention；
Fig. 4 is the structure chart that driving means provided in an embodiment of the present invention are applied to the first LED light group；
Fig. 5 is the structure chart that driving means provided in an embodiment of the present invention are applied to the second LED light group；
Fig. 6 is a kind of exemplary application map for being applied to the first LED light group of driving means provided in an embodiment of the present invention；
Fig. 7 is a kind of exemplary application map for being applied to the second LED light group of driving means provided in an embodiment of the present invention；
Fig. 8 is the flow chart of driving method provided in an embodiment of the present invention；
Fig. 9 is a kind of particular flow sheet of the driving method shown in Fig. 8；
Figure 10 is the flow chart of the application example of driving method provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.In order to illustrate technical solutions according to the invention, illustrate below by specific embodiment.
Light fixture described in the embodiment of the present invention, is provided with one or more LEDs in the light fixture.What deserves to be explained is, this
Bright embodiment also with the addition of driving means in the light fixture, and the driving means are constituted using electronic device, but the embodiment of the present invention
Physical circuit to how to be made up of the driving means electronic device is not limited.As a kind of enforcement for realizing the driving means
Mode, the driving means are by the integrated chip of electronic device is realized.
Fig. 1 shows the concrete structure of driving means provided in an embodiment of the present invention, but for purposes of illustration only, Fig. 1 is only illustrated
The part related to the embodiment of the present invention.
As shown in figure 1, driving means provided in an embodiment of the present invention, the driving means are electrically connected with the LED in light fixture
Connect.Specifically in embodiments of the present invention, the driving means are used for：Drive the LED in light fixture；Specifically, the driving means to
The direct current of the LED output constant current in the light fixture.When the driving means are to the straight of the different electric currents of LED output in the light fixture
During stream electricity, the brightness of LED can be adjusted accordingly.
As shown in figure 1, the driving means include regulation and control module 1 and multiple constant current output modules 2, the regulation and control module 1
Electrically connect with constant current output module 2 each described respectively, the constant current output module 2 is electrically connected with the LED.
Specifically in embodiments of the present invention, whether the constant current output module 2 exports electric signal to the LED, by institute
State regulation and control module 1 control, specifically, it is described regulation and control module 1 to the output drive signal of constant current output module 2, by the driving
Signal controls whether the constant current output module 2 exports electric signal to the LED.Illustrate, when it is described regulation and control module 1 to
During certain output drive signal " 1 " of constant current output module 2, the constant current output module 2 can export electric signal to LED；Work as institute
When stating regulation and control module 1 to output drive signal " 0 " of constant current output module 2, stop the constant current output module 2 to LED
Output electric signal.
The regulation and control module 1 as shown in Figure 1, is used for：Electric signal is received, is detected from the electric signal start every time
Its drive signal exported to the constant current output module 2 is adjusted according to opening number of times, with the drive signal one is gated when making
Or multiple constant current output modules 2, the number of times of opening is：The number of times for starting work is had detected that from the electric signal.
The constant current output module 2 as shown in Figure 1, is used for：When being gated by the drive signal, to the LED
The direct current of output constant current.
Specifically in embodiments of the present invention, the regulation and control module 1 receives the electricity that other circuits are exported to the driving means
Signal, the electric signal includes starting work or pass action in the circuit；When control the circuit perform start make when, the circuit starts
Electric energy is exported to the driving means；When circuit execution pass action is controlled, the circuit starts to stop to the driving means
Output electric energy.
The regulation and control module 1 detects the electric signal, judges whether the circuit performs and starts work, can also detect as needed
Whether the circuit performs pass action.A kind of embodiment of work or pass action is started as the detection from the electric signal, in advance
Setting signal threshold value, the regulation and control module 1 compares the electric signal for receiving with the signal threshold value；When the width for detecting electric signal
Value from become smaller than the signal threshold value more than the signal threshold value when, be judged to that the circuit performs once the pass action；Work as inspection
Measure the amplitude of electric signal from become greater than the signal threshold value less than the signal threshold value when, be judged to that the circuit performs once institute
State and start work.
In embodiments of the present invention, often detect once from the electric signal of the circuit output it is described start work, will be described
Open number of times and plus one.That is, it is opening number of times described in current time：The regulation and control module 1 is defeated from before the circuit in this prior moment
The cumulative number for starting work is detected in the electric signal for going out.
The regulation and control module 1 is often detected from the electric signal once starts work, opens secondary according to current immediately
The number adjustment drive signal that once it is exported to the constant current output module 2.Under normal circumstances, the driving before adjusting and after adjustment
Signal is that different, different drive signals can select the different constant current output modules 2, described in drive signal selection
Constant current output module 2 can export direct current to LED, and the constant current output module 2 not selected by drive signal will not be to
LED exports direct current, and then adjusts the electric current to LED output；For LED, meeting when being driven by different electric currents
Correspondence sends the light of different brightness；So, the brightness of different drive signal meeting Indirect method LEDs.From the above it can be seen that of the invention
" gating " described in embodiment, is to select constant current output module 2 by drive signal, and selected constant current output module 2 can be to
LED exports direct current, does not have selected constant current output module 2 to export direct current to LED.
Fig. 2 is shown based on a kind of optimization composition structure of the driving means of Fig. 1, for the ease of description, illustrate only with
The related part of the embodiment of the present invention.
As regulation and control the embodiment of module 1 one, referring to Fig. 2, the regulation and control module 1 specifically include motion detection module 11,
Drive module 12 and reference voltage module 13, the drive module 12 is electric with the motion detection module 11, the benchmark respectively
Die block 13 and each described constant current output module 2 are electrically connected, the reference voltage module 13 and each described constant current output mould
Block 2 is electrically connected.
Referring to Fig. 2, the motion detection module 11 is used for：The electric signal is received, is detected according to from the electric signal
To the work/pass action of starting generate switching signal.
Specifically, for the electric signal that driving means are received from other circuits (such as power module), by motion detection
Module 11 detects the electric signal, specifically compares the electric signal with the signal threshold value；When detecting the amplitude of electric signal from big
When the signal threshold value becomes smaller than the signal threshold value, it is judged to that the circuit performs once the pass action；When detecting electricity
The amplitude of signal from become greater than the signal threshold value less than the signal threshold value when, be judged to that the circuit performs once described starting
Make.
Illustrate as a kind of of switching signal is generated, when starting of detecting from the electric signal is made, start
Output high potential " 1 "；When the pass action detected from the electric signal, start to export electronegative potential " 0 "；So as to action inspection
Survey module detects when starting work/pass action that the motion detection module 11 can be exported by " 1 " and " 0 " group for more than 11 times from electric signal
Into switching signal.
Therefore, the switching signal for being generated according to present embodiment, can more clearly judge whether other circuits perform out
Action and/or pass action.
Referring to Fig. 2, the drive module 12 is used for：Drive signal is generated according to the switching signal and the number of times of opening.
Specifically, detect from switching signal every time and start when making, the number of times of opening plus one, and opened according to current
Number of times regenerates a drive signal, by the drive signal that regenerates the constant current output module 2 is selected, only by selecting
The constant current output module 2 to LED exports direct current.
Referring to Fig. 2, the reference voltage module 13 is used for：Adjusted to the constant current output module according to the drive signal
2 output reference voltages, with the constant current output module 2 according to the reference voltage adjust its to the LED export it is straight
The electric current of stream electricity.
In the present embodiment, the reference voltage module 13 includes base modules and selecting module；Wherein, the benchmark
Module generates multiple reference voltages, and the multiple reference voltages for generating are exported to the selecting module；The selecting module, according to institute
One or more bases are selected in the multiple reference voltages that generate from the selecting module of drive signal for stating the generation of drive module 12
Quasi- voltage.
As a kind of embodiment to the output reference voltage of constant current output module 2, the reference voltage module 13
Export reference voltage that is different, selecting to the different constant current output modules 2 respectively.So, different constant current output moulds
Block 2, adjusts it to the electricity of the electric signal of LED output according to the reference voltage module 13 to its reference voltage for exporting respectively
Stream.
As another embodiment to the output reference voltage of constant current output module 2, the reference voltage module
13 respectively to the multiple output of constant current output module 2 identicals, the reference voltage for selecting.So, multiple constant current output modules
2, respectively its electric signal exported to LED is adjusted to its same reference voltage for exporting according to the reference voltage module 13
Electric current.
In the present embodiment, not only according to drive signal selection from which constant current output module 2 to LED output direct current
Electricity, but also the reference voltage that the reference voltage module 13 is exported to the constant current output module 2, institute are determined from the drive signal
The constant current output module 2 for stating drive signal selection is adjusted to LED according to the reference voltage that the reference voltage module 13 is exported
The galvanic electric current of output；So as to adjust the luminosity of LED.
Used as the regulation and control embodiment of module 1 one, the driving means external power supply module 3, the power module 3 includes electricity
Source switch 31, the power switch 31 is used for：Start as when turn on the power module 3 electric energy output, during the action of pass disconnect
The electric energy output of the power module 3.
Specifically, the driving means external power supply module 3, drives the electric energy needed for light fixture to be provided by the power module 3.
Power switch 31 is added with the power module 3, determines whether the power module 3 exports by the power switch 31
Electric signal.
Fig. 3 is shown based on a kind of optimization composition structure of the driving means of Fig. 1, for the ease of description, illustrate only with
The related part of the embodiment of the present invention.
Illustrate, referring to Fig. 3, the external civil power of power module 3, power module 3 is by power switch 31 and rectification circuit 32
Composition；Wherein, the power switch 31 in power module 3 is connected between the live wire of civil power and rectification circuit 32；Close dynamic when performing
When work disconnects power switch 31, stop rectification circuit 32 and export electric signal to the regulation and control module 1 of driving means, that is, disconnect described
The electric energy output of power module 3；When work is started in execution closes power switch 31, rectification circuit 32 can be to the tune of driving means
The control output electric signal of module 1, that is, turn on the electric energy output of the power module 3.
The motion detection module 11 specifically for：The electric signal of the output of the power module 3 is received, from the power supply mould
That the power switch 31 is detected in the electric signal of the output of block 3 starts work/pass action.
Specifically in the present embodiment, examine in the electric signal that the motion detection module 11 is exported from the power module 3
That surveys the power switch 31 starts work/pass action, and generates switching signal according to the work/pass action of starting for detecting, according to
The switching signal determines the drive signal that the drive module 12 is exported to the constant current output module 2, while being believed by the switch
Number the reference voltage that the reference voltage module 13 export to the constant current output module 2 is determined, so as to adjust lighting for LED
Brightness.
So, user can adjust the luminosity of LED in light fixture after different number of times close the power switch 31.
Used as the embodiment of the embodiment of the present invention one, multiple constant current output modules 2 are electrically connected with the first LED light group,
First LED light group includes one or more LEDs.
What deserves to be explained is, all LEDs in light fixture can be divided into first LED light group by present embodiment, may be used also
So that all LEDs in light fixture are divided into into multiple first LED light groups, part LED in light fixture can also be divided into one
One LED light group, can also be divided into multiple first LED light groups, depending on demand by part LED in light fixture.
Specifically, the first LED light group includes one or more LEDs；If the first LED light group includes multiple LEDs, this
The concrete connected mode of all LEDs that embodiment includes to the first LED light group is not limited；For example, by the first LED light group
Including all LEDs series connection；For example, all LEDs for the first LED light group being included are in parallel；For example, by the first LED light group
Including part LED it is in parallel, the part LED series connection that the first LED light group is included.
In addition, arrangement mode of the present embodiment also to LED in light fixture is also not construed as limiting, such as can be by the lamp in light fixture
Tool permutation arrangement.
What deserves to be explained is, present embodiment is electrically connected multiple constant current output modules 2 with the first LED light group simultaneously
Connect；So, because the regulation and control module 1 can be adjusted to the perseverance when detecting from the electric signal and starting and make according to number of times is held
The drive signal of the stream output of output module 2, different driving signal is from the multiple described constant current output electrically connected with the first LED light group
Constant current output module 2 is selected in module 2, is chosen from the multiple described constant current output module 2 electrically connected with the first LED light group
Constant current output module 2 to the first LED light group export direct current, it is defeated from the multiple described constant current electrically connected with the first LED light group
Going out non-selected constant current output module 2 in module 2 can not export direct current to the first LED light group LED light group group；And then it is described
Regulation and control module 1 adjust every time to the constant current output module 2 output drive signal when, can all adjust LED in the first LED light group
The luminosity of lamp, so as to adjust the Integral luminous brightness of the first LED light group.
Used as the embodiment of the embodiment of the present invention one, a constant current output module 2 is electrically connected with the second LED light group,
Second LED light group includes one or more LEDs.
What deserves to be explained is, all LEDs in light fixture can be divided into multiple second LED light groups by present embodiment,
Part LED in light fixture can also be divided into multiple second LED light groups, depending on demand.
Specifically similar with the first LED light group, the second LED light group includes one or more LEDs；If the second LED
Group includes multiple LEDs, and the concrete connected mode of all LEDs that present embodiment includes to the second LED light group is not limited；
For example, all LEDs series connection for the second LED light group being included；For example, all LEDs for the second LED light group being included are in parallel；
For example, the part LED for the second LED light group being included is in parallel, the part LED series connection that the second LED light group is included.In addition,
Arrangement mode of the present embodiment also to LED in light fixture is also not construed as limiting, and such as the light fixture permutation in light fixture can be arranged.
What deserves to be explained is, for each the second LED light group, present embodiment is only by a constant current output module 2
Electrically connect with second LED light group；So, because it is described regulation and control module 1 detect from the electric signal start make when meeting
Drive signal to the constant current output module 2 output is adjusted according to number of times is opened, different driving signal is defeated from all constant currents
Go out in module 2 to select one or more constant current output modules 2；Selected each constant current output module 2 is respectively to being connected thereto
The second LED light group output direct current, i.e., a selected constant current output module 2 is respectively to connected one second
LED light group exports direct current；Non-selected constant current output module 2 can not export direct current to connected second LED light group
Electricity；And then it is described regulation and control module 1 adjust every time to the constant current output module 2 output drive signal when, all can reselect
One or more constant current output modules 2, accordingly reselect one or more second LED light groups, adjustment selected second
The luminosity of LED in LED light group, so as to adjust the Integral luminous brightness of the second LED light group；Because of multiple second LED light groups
Luminosity change, the glow color for causing light fixture changes.
As the embodiment of the embodiment of the present invention one, referring to Fig. 4, using all LEDs in light fixture all as the first LED
Group, when detecting from the electric signal and start and make every time so as to the regulation and control module 1 the luminous of the first LED light group can be all adjusted
Brightness, so as to adjust the luminosity of light fixture.
As the embodiment of the embodiment of the present invention one, referring to Fig. 5, using all LEDs in light fixture all as multiple second
LED light group, when detecting from the electric signal and start and make every time so as to the regulation and control module 1 each the 2nd LED can be all adjusted
The luminosity of lamp group, so as to adjust the glow color of light fixture.
As the embodiment of the embodiment of the present invention one, the external impressed current adjusting module of the constant current output module 2, the electric current
Adjusting module is electrically connected respectively with multiple constant current output modules 2；
The current adjusting module is used for：The electric signal of the constant current output module 2 output that adjustment is connected electrically
Electric current.
In the present embodiment, current adjusting module, constant current output module 2 and LED series connection, if adjustment electric current adjustment
The impedance of module, then can adjust the electric current for flowing through constant current output module 2, that is, adjust constant current output module 2 to the electricity of LED output
Stream.
Used as the case study on implementation of present embodiment one, current adjusting module includes that the first matrix current adjustment circuit and the second electric current are adjusted
Whole circuit.Wherein, the first matrix current adjustment circuit is connected with the LED light group of constant current output module 2 and first；Second matrix current adjustment circuit
Connect with the LED light group of constant current output module 2 and second.First matrix current adjustment circuit and the second matrix current adjustment circuit can with identical,
Can also be different.
Used as the case study on implementation of the embodiment of the present invention one, referring to Fig. 6, the driving means include two constant current output moulds
Block 2, two constant current output modules 2 are electrically connected with the first LED light group simultaneously, and first LED light group includes one or many
Individual LED；The external impressed current adjusting module 4 of the constant current output module 2, the current adjusting module 4 include first resistor R1 and
Second resistance R2, first one constant current output module 2 of termination of first resistor R1, the second of first resistor R1
Another constant current output module 2 is terminated, second resistance R2 is connected to second end and ground of first resistor R1
Between；
The driving means external power supply module 3, the power module 3 includes power switch 31；
The regulation and control module specifically includes motion detection module 11, drive module 12 and reference voltage module 13, the drive
Dynamic model block 12 is electric with the motion detection module 11, the reference voltage module 13 and each described constant current output module 2 respectively
Connection, the reference voltage module 13 is electrically connected with constant current output module 2 each described；
The motion detection module 11 is used for：The electric signal of the output of the power module 3 is received, from the power module 3
That the power switch 31 is detected in the electric signal of output starts work/pass action, according to opening for detecting from the electric signal
Action/pass action generates switching signal；
The drive module 12 is used for：Drive signal is generated according to the switching signal and the number of times of opening；
The reference voltage module 13 is used for：Adjusted to the constant current output module 2 output according to the drive signal
Reference voltage, so that each described constant current output module 2 adjusts it to first LED light group according to the reference voltage respectively
The galvanic electric current of output.
The implementation case shown in Fig. 6 be by driving means include two constant current output modules 2 as a example by, wherein, two perseverances
Stream output module 2 is electrically connected with the first LED light group simultaneously, the operation principle of the driving means shown in Fig. 6：
When first time closure power switch 31, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 1 ", EN2=" 1 "), reference voltage module 13 is according to the drive signal (EN1=" 1 ", EN2=
" 1 ") select output reference voltage Vref1 to control second constant current output mould by the drive signal (EN1=" 1 ", EN2=" 1 ")
Block is to the first LED light group direct current, the galvanic electric current Iout=Vref1/R2 of output.
When second closure power switch 31, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 0 ", EN2=" 1 "), reference voltage module 13 is according to the drive signal (EN1=" 0 ", EN2=
" 1 ") output reference voltage Vref2 is selected, second constant current output mould is controlled by the drive signal (EN1=" 0 ", EN2=" 1 ")
Block 2 is to the first LED light group direct current, the galvanic electric current Iout=Vref2/R2 of output.
When third time closure power switch 31, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 1 ", EN2=" 0 "), reference voltage module 13 is according to the drive signal (EN1=" 1 ", EN2=
" 0 ") output reference voltage Vref2 is selected, first constant current output mould is controlled by the drive signal (EN1=" 1 ", EN2=" 0 ")
Block 2 is to the first LED light group direct current, the galvanic electric current Iout=Vref2/ (R1+R2) of output.
When the 4th closure switch power supply 31, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 1 ", EN2=" 1 "), reference voltage module 13 is according to the drive signal (EN1=" 1 ", EN2=
" 1 ") select output reference voltage Vref1 to control second constant current output mould by the drive signal (EN1=" 1 ", EN2=" 1 ")
Block 2 is to the first LED light group direct current, the galvanic electric current Iout=Vref1/R2 of output.
It is similar to the above, the output current of the first LED light group group is adjusted according to the opening and closing number of times of power switch 31, close every time
When closing power switch 31, the luminosity of the first LED light group all can change, i.e., the luminosity of light fixture can change.
Used as the case study on implementation of the embodiment of the present invention one, referring to Fig. 7, the driving means include two constant current output moulds
Block 2, each described correspondence of constant current output module 2 connects second LED light group, and second LED light group includes one or more
LED；The external impressed current adjusting module 4 of the constant current output module 2, the current adjusting module 4 includes 3rd resistor R3 and the
Four resistance R4, the first end of 3rd resistor R3 is corresponding with the second end to connect a constant current output module 2 and ground, and described the
The first end of four resistance R4 is corresponding with the second end to connect another described constant current output module 2 and ground；
The driving means external power supply module 3, the power module 3 includes power switch 31；
The regulation and control module specifically includes motion detection module 11, drive module 12 and reference voltage module 13, the drive
Dynamic model block 12 is electric with the motion detection module 11, the reference voltage module 13 and each described constant current output module 2 respectively
Connection, the reference voltage module 13 is electrically connected with constant current output module 2 each described；
The motion detection module 11 is used for：The electric signal of the output of the power module 3 is received, from the power module 3
That the power switch 31 is detected in the electric signal of output starts work/pass action, according to opening for detecting from the electric signal
Action/pass action generates switching signal；
The drive module 12 is used for：Drive signal is generated according to the switching signal and the number of times of opening；
The reference voltage module 13 is used for：Adjusted to the constant current output module 2 output according to the drive signal
Reference voltage, so that each described constant current output module 2 adjusts it to connected described according to the reference voltage respectively
The galvanic electric current of the second LED light group output.
The implementation case shown in Fig. 7 is two constant current outputs so that driving means include two constant current output modules 2 as an example
Module 2 is electrically connected respectively with second LED light group, the operation principle of the driving means shown in Fig. 7：
When first time closure power switch 31, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 1 ", EN2=" 1 "), reference voltage module 13 is according to the drive signal (EN1=" 1 ", EN2=
" 1 ") output reference voltage Vref1 is selected, by the drive signal (EN1=" 1 ", EN2=" 1 ") while selecting the first constant current output
Module and second constant current output module；First constant current output module to first the second LED light group direct current, output
The galvanic electric current Iout1=Vref1/R1；Second constant current output module to second the second LED light group direct current,
The galvanic electric current Iout2=Vref1/R2 of output.
When second closure power switch 31, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 0 ", EN2=" 1 "), reference voltage module 13 is according to the drive signal (EN1=" 0 ", EN2=
" 1 ") output reference voltage Vref2 is selected, while it is defeated to control second constant current by the drive signal (EN1=" 0 ", EN2=" 1 ")
Go out module 2 to second the second LED light group direct current, the galvanic electric current Iout2=Vref2/R2 of output；First
Individual constant current output module 2 is closed, i.e., first the second LED light group electric current is 0.
When third time closure power switch 31, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 1 ", EN2=" 0 "), reference voltage module 13 is according to the drive signal (EN1=" 1 ", EN2=
" 0 ") output reference voltage Vref2 is selected, while it is defeated to control first constant current by the drive signal (EN1=" 1 ", EN2=" 0 ")
Go out module 2 to first the second LED light group direct current, the galvanic electric current Iout1=Vref2/R1 of output；Second
Individual constant current output module 2 is closed, i.e., second the second LED light group electric current is 0.
When power switch 31 is closed the 4th time, motion detection module 11 detects the closed action, and by drive module
12 output drive signals (EN1=" 1 ", EN2=" 1 "), reference voltage module 13 is according to the drive signal (EN1=" 1 ", EN2=
" 1 ") output reference voltage Vref1 is selected, by the drive signal (EN1=" 1 ", EN2=" 1 ") while selecting the first constant current output
Module and second constant current output module；First constant current output module to first the second LED light group direct current, output
The galvanic electric current Iout1=Vref1/R1；Second constant current output module to second the second LED light group direct current,
The galvanic electric current Iout2=Vref1/R2 of output.
It is similar to the above, every time during closure power switch 31, all can adjust to first the second LED light group output
Galvanic electric current Iout1, while adjusting the galvanic electric current Iout2 to second the second LED light group output；From
And, every time during closure power switch 31, the luminosity of first second LED light group and second second LED
The luminosity of group all can change, so as to the glow color for causing light fixture changes.
The embodiment of the present invention also provides a kind of light fixture, and the light fixture includes above-mentioned driving means.But the embodiment of the present invention
Other circuit structures or frame for movement of light fixture are not limited, whether adds other functions to the light fixture in addition, and how
Realize that other functions are not limited.
It should be noted that driving method provided in an embodiment of the present invention is applicable to driving provided in an embodiment of the present invention
Device.
Fig. 8 shows the flow process of driving method provided in an embodiment of the present invention, for the ease of description, illustrate only and this
The related part of bright embodiment.
Driving method provided in an embodiment of the present invention, as shown in figure 8, the light fixture with one or more LEDs is applied to,
Characterized in that, the driving method includes step A1 and step A2.
Step A1, regulation and control module receives electric signal, detects from the electric signal start when making according to opening number of times every time
Its drive signal exported to the constant current output module is adjusted, one or more described constant currents is gated with the drive signal defeated
Go out module, the number of times of opening is：The number of times for starting work is had detected that from the electric signal；
Step A2, constant current output module when being gated by the drive signal, to the direct current of the LED output constant current
Electricity.
Fig. 9 shows a kind of Optimizing Flow of driving method provided in an embodiment of the present invention, for the ease of description, only illustrates
The part related to the embodiment of the present invention.
As the embodiment of the embodiment of the present invention one, as shown in figure 9, the regulation and control module receives electric signal, every time from institute
State detect in electric signal start when making according to open number of times adjust drive signal that it is exported to the constant current output module this
Step specifically includes step A11, step A12 and step A13.
Step A11, motion detection module receives the electric signal, according to detect from the electric signal start work/
Pass action generates switching signal；
Step A12, drive module generates drive signal according to the switching signal and the number of times of opening；
Step A13, reference voltage module adjusts the benchmark to constant current output module output according to the drive signal
Voltage, its galvanic electric current exported to the LED is adjusted with the constant current output module according to the reference voltage；
Wherein, the regulation and control module includes the motion detection module, the drive module and the reference voltage module.
Figure 10 shows a kind of Optimizing Flow of driving method provided in an embodiment of the present invention, for the ease of description, only shows
The part related to the embodiment of the present invention is gone out.
Used as the embodiment of the embodiment of the present invention one, as shown in Figure 10, the regulation and control module receives electric signal, every time from institute
State detect in electric signal start when making according to open number of times adjust drive signal that it is exported to the constant current output module this
Before step, the driving method also includes step A3.
Step A3, power module to the motion detection module exports electric signal so that the motion detection module is from institute
State and detect in the electric signal of power module output that power switch starts work/pass action.
Wherein, the power module includes power switch, and the power switch is used for：Start as when turn on the power supply mould
The electric energy output of block, disconnects the electric energy output of the power module during action of pass；
As the embodiment of the embodiment of the present invention one, the constant current output module when being gated by the drive signal, to
The step for direct current of the LED output constant current, specifically include：
Multiple constant current output modules are simultaneously to the direct current of the first LED light group output constant current；Or
Direct current of one constant current output module to the second LED light group output constant current；
Wherein, first LED light group includes one or more LEDs, and second LED light group includes one or more
LED.
It will be appreciated by those skilled in the art that the modules included by driving means provided in an embodiment of the present invention are only
Divided according to function logic, but be not limited to above-mentioned division, as long as corresponding function can be realized；Separately
Outward, the specific name of each functional module is also only to facilitate mutually differentiation, is not limited to protection scope of the present invention.Together
When, using which kind of circuit realiration above-mentioned functions module, also do not limit.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention,
Some equivalent substitutes or obvious modification are made on the premise of without departing from present inventive concept, and performance or purposes are identical, all should
It is considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.
Claims (9)
1. a kind of driving means, the driving means are electrically connected with the LED in light fixture, it is characterised in that the driving means
Including：Regulation and control module and multiple constant current output modules, the regulation and control module is electrically connected respectively with constant current output module each described,
The constant current output module is electrically connected with the LED；
The regulation and control module is used for：Receive electric signal, detect from the electric signal every time start when making according to open number of times tune
The whole drive signal that it is exported to the constant current output module, with the drive signal one or more described constant current outputs are gated
Module, the number of times of opening is：The number of times for starting work is had detected that from the electric signal；
The constant current output module is used for：When being gated by the drive signal, to the direct current of the LED output constant current；
The regulation and control module specifically includes motion detection module, drive module and reference voltage module, the drive module difference
Electrically connect with the motion detection module, the reference voltage module and each described constant current output module, the reference voltage
Module is electrically connected with constant current output module each described；
The motion detection module is used for：The electric signal is received, is moved according to the work/pass of starting detected from the electric signal
Make generation switching signal；
The drive module is used for：Drive signal is generated according to the switching signal and the number of times of opening；
The reference voltage module is used for：Benchmark electricity to constant current output module output is adjusted according to the drive signal
Pressure, its galvanic electric current exported to the LED is adjusted with the constant current output module according to the reference voltage.
2. driving means as claimed in claim 1, it is characterised in that the driving means external power supply module, the power supply
Module includes power switch, and the power switch is used for：Start as when turn on the power module electric energy output, during the action of pass
Disconnect the electric energy output of the power module；
The motion detection module specifically for：The electric signal of the power module output is received, from power module output
Electric signal in detect the power switch start work/pass action.
3. driving means as claimed in claim 1, it is characterised in that multiple constant current output modules and the first LED light group
Electrical connection, first LED light group includes one or more LEDs；
Or a constant current output module is electrically connected with the second LED light group, second LED light group includes one or more
LED.
4. driving means as described in any one of claims 1 to 3, it is characterised in that the constant current output module external impressed current
Adjusting module, the current adjusting module is electrically connected respectively with multiple constant current output modules；
The current adjusting module is used for：The electric current of the electric signal of the constant current output module output that adjustment is connected electrically.
5. driving means as claimed in claim 1, it is characterised in that the driving means include two constant current output moulds
Block, two constant current output modules are electrically connected with the first LED light group simultaneously, and first LED light group includes one or more
LED；The constant current output module external impressed current adjusting module, the current adjusting module is electric including first resistor and second
Resistance, first one constant current output module of termination of the first resistor, second another institute of termination of the first resistor
Constant current output module is stated, the second resistance is connected between the second end of the first resistor and ground；
The driving means external power supply module, the power module includes power switch；
The regulation and control module specifically includes motion detection module, drive module and reference voltage module, the drive module difference
Electrically connect with the motion detection module, the reference voltage module and each described constant current output module, the reference voltage
Module is electrically connected with constant current output module each described；
The motion detection module is used for：The electric signal of the power module output is received, from the electricity of power module output
That the power switch is detected in signal starts work/pass action, and according to what is detected from the electric signal work/pass action is started
Generate switching signal；
The drive module is used for：Drive signal is generated according to the switching signal and the number of times of opening；
The reference voltage module is used for：Benchmark electricity to constant current output module output is adjusted according to the drive signal
Pressure, so that each described constant current output module adjusts what it was exported to first LED light group according to the reference voltage respectively
Galvanic electric current.
6. driving means as claimed in claim 1, it is characterised in that the driving means include two constant current output moulds
Block, each described constant current output module correspondence connects second LED light group, and second LED light group includes one or more LED
Lamp；The constant current output module external impressed current adjusting module, the current adjusting module includes 3rd resistor and the 4th resistance, institute
State 3rd resistor first end it is corresponding with the second end connect a constant current output module and ground, the first end of the 4th resistance
It is corresponding with the second end to connect another described constant current output module and ground；
The driving means external power supply module, the power module includes power switch；
The regulation and control module specifically includes motion detection module, drive module and reference voltage module, the drive module difference
Electrically connect with the motion detection module, the reference voltage module and each described constant current output module, the reference voltage
Module is electrically connected with constant current output module each described；
The motion detection module is used for：The electric signal of the power module output is received, from the electricity of power module output
That the power switch is detected in signal starts work/pass action, and according to what is detected from the electric signal work/pass action is started
Generate switching signal；
The drive module is used for：Drive signal is generated according to the switching signal and the number of times of opening；
The reference voltage module is used for：Benchmark electricity to constant current output module output is adjusted according to the drive signal
Pressure, so that each described constant current output module adjusts it to connected 2nd LED according to the reference voltage respectively
The galvanic electric current of lamp group output.
7. a kind of driving method, is applied to the light fixture with one or more LEDs, it is characterised in that the driving method bag
Include：
Regulation and control module receives electric signal, detects to start every time from the electric signal and adjust it to constant current according to opening number of times when making
The drive signal of output module output, with the drive signal one or more described constant current output modules are gated, described to open secondary
Number is：The number of times for starting work is had detected that from the electric signal；
The constant current output module when being gated by the drive signal, to the direct current of the LED output constant current；
It is described regulation and control module receive electric signal, detect from the electric signal every time start when making according to open number of times adjust its to
The step for drive signal of the constant current output module output, specifically includes：
Motion detection module receives the electric signal, is opened according to the work/pass action generation of starting detected from the electric signal
OFF signal；
Drive module generates drive signal according to the switching signal and the number of times of opening；
Reference voltage module adjusts the reference voltage to constant current output module output according to the drive signal, with the perseverance
Stream output module adjusts its galvanic electric current exported to the LED according to the reference voltage；
Wherein, the regulation and control module includes the motion detection module, the drive module and the reference voltage module.
8. driving method as claimed in claim 7, it is characterised in that the regulation and control module receives electric signal, every time from described
Detect in electric signal and start when making according to drive signal this step for opening that number of times adjusts that it is exported to the constant current output module
Before rapid, the driving method also includes：
Power module to the motion detection module exports electric signal so that the motion detection module is defeated from the power module
That power switch is detected in the electric signal for going out starts work/pass action；
Wherein, the power module includes power switch, and the power switch is used for：Start as when turn on the power module
Electric energy is exported, and the electric energy output of the power module is disconnected during the action of pass.
9. driving method as claimed in claim 7, it is characterised in that the constant current output module is being selected by the drive signal
When logical, to the LED output constant current direct current the step for, specifically include：
Multiple constant current output modules are simultaneously to the direct current of the first LED light group output constant current；Or
Direct current of one constant current output module to the second LED light group output constant current；
Wherein, first LED light group includes one or more LEDs, and second LED light group includes one or more LED
Lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712133.1A CN104411061B (en) | 2014-11-28 | 2014-11-28 | Driving device and driving method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712133.1A CN104411061B (en) | 2014-11-28 | 2014-11-28 | Driving device and driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104411061A CN104411061A (en) | 2015-03-11 |
| CN104411061B true CN104411061B (en) | 2017-05-10 |
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| CN110708813B (en) * | 2019-11-14 | 2022-03-25 | 武汉呵尔医疗科技发展有限公司 | Multi-path accurate adjustable constant-current LED driving circuit |
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| JP4450019B2 (en) * | 2007-07-03 | 2010-04-14 | ソニー株式会社 | Control device and control method, and planar light source device and planar light source device control method |
| CN101621878A (en) * | 2008-07-03 | 2010-01-06 | 林焕博 | Light-adjusting driving device and method |
| CN101707836B (en) * | 2009-11-12 | 2013-05-01 | 英飞特电子（杭州）股份有限公司 | Circuit for dimming through power switch |
| CN202603016U (en) * | 2012-06-08 | 2012-12-12 | 吴雯雯 | Driving circuit of LED (light-emitting diode) fluorescent lamp with adjustable light |
| CN103687217B (en) * | 2013-11-29 | 2015-11-18 | 上海亚明照明有限公司 | A kind of switch dimming LED drive circuit |
| CN203748068U (en) * | 2014-02-25 | 2014-07-30 | 广东极佳光电科技有限公司 | LED lamp intelligent dimming circuit |
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