CN103634986B - Multichannel light modulating device and light-dimming method thereof - Google Patents
Multichannel light modulating device and light-dimming method thereof Download PDFInfo
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Abstract
The present invention relates to illuminate multichannel light modulating device and the light-dimming method thereof in place, wherein this multichannel light modulating device includes the control input equipment for inputting generation dimming control signal according to user, for the control unit according to described dimming control signal output mode control signal and for the power source drive unit according to multi-channel semiconductor light source build-up of luminance described in described mode control signal driven.Within a driven cycle, at least one of only electricity time in the plurality of semiconductor light source is no more than its persistence.The output of the driver element of this multichannel light modulating device is stable, does not haves the situation of intermittent overvoltage protection, and circuit runs more stable, and service life is longer, can realize multistage or electrodeless regulation colour temperature, the dimming effect of brightness.
Description
Technical field
The present invention relates to brightness adjustment control field, especially relate to a kind of multichannel light modulating device and light-dimming method thereof.
Background technology
Existing light modulation form can include that single light source light modulation and multiple light courcess dim.Single source light modulation is typically only used for regulating the bright and dark of light source.Multiple light courcess light modulation not only can control the bright and dark of light source entirety output, it is also possible to the colour temperature of regulation light source entirety output, even color, such as common RGB mixed light regulation form etc..
As a example by semiconductor light source, the form the most generally using the corresponding single semiconductor light source of single driving means dims, the power drives link that i.e. semiconductor light source of each different colours or different-colour is the most corresponding, and control each power drives by a total control module, thereby realize the semiconductor light source build-up of luminance simultaneously controlled corresponding to each power drives, to form the mediation of various light source colors, form various light-modulating mode, meet demand.But the defect of such scheme is, in order to control multi-channel semiconductor light source build-up of luminance or bright shadow joint, it is necessary to the driving means arranging multiple correspondence realizes, and the most singly adds the cost of light adjusting and controlling device, is also difficult to subtract the volume of mini controller simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of multichannel light modulating device being realized by single driving means and multiple dimming light sources being controlled.
A kind of multichannel light modulating device, is used for controlling multi-channel semiconductor light source build-up of luminance, comprising:
Control input equipment, for inputting generation dimming control signal according to user；
Control unit, it is for selecting corresponding default light-modulating mode according to described dimming control signal, and according to selected default light-modulating mode output mode control signal；And
Power source drive unit, it is for according to multi-channel semiconductor light source build-up of luminance described in described mode control signal driven.Wherein, within a driven cycle, at least one of only electricity time in described multi-channel semiconductor light source is no more than its persistence.
Described default light-modulating mode is, by filling the dutycycle of the mode control signal of each road semiconductor light source within a driven cycle, the dutycycle sum making the mode control signal of multi-channel semiconductor light source is 1, uses permutation and combination and is shaped as various light-modulating mode.And the frequency of described mode control signal is more than or equal to 200HZ.
Present invention also offers a kind of light-dimming method based on above-mentioned multichannel light modulating device, the method comprising the steps of:
1) generation dimming control signal is inputted according to user；
2) identify described dimming control signal, and select corresponding default light-modulating mode；And
3) convert this default light-modulating mode and export corresponding pwm signal to power source drive unit, make power source drive unit alternately multi-channel semiconductor light source described in build-up of luminance within a control cycle, and continue.Wherein said light-modulating mode is: fill each road build-up of luminance light source duty ratio within a driven cycle, and permutation and combination forms default light efficiency light-modulating mode.In a duty cycle, at least one of only electricity time in described multi-channel semiconductor light source is no more than its persistence, and the frequency of described pwm signal is more than or equal to 200HZ.
Present invention also offers a kind of multichannel light modulating device, comprising:
One power source drive unit, it is for providing nominal operational voltage or electric current to multi-channel semiconductor light source；
At least one controls input block, and it is for inputting the corresponding dimming control signal of generation according to user；
At least one control unit, it exports multiple pwm signals according to described dimming control signal to described power source drive unit, utilize described power source drive unit to control described multi-channel semiconductor light source with realization extinguish according to the plurality of pwm signal and light, it is achieved the light mixing effect preset simultaneously；
Wherein, at least some of semiconductor light source in described multi-channel semiconductor light source is under the control of its pwm signal, and its time extinguished is no more than its persistence, thus can realize this at least some of semiconductor light source omnidistance mixed light in a drive cycle.
Preferably, described at least some of semiconductor light source is the semiconductor light source with different colours or colour temperature or brightness.Described at least some of semiconductor light source is alternately lighted in one drive cycle.
In one embodiment, described power source drive unit includes a constant-current source chip and multiple switching tube.Described constant-current source chip has the input port connecting external power source, and one can to described multi-channel semiconductor light source positive pole export constant current the first output port, first end of the plurality of switching tube is connected with the negative pole of corresponding semiconductor light source respectively, its second end ground connection.Described constant-current source chip also can recognize that switching-on and switching-off state, it also has second and the 3rd output port of the signal that when re-powering after each power-off of described input port, output is contrary with output signal after previous powering on, the output signal of described second output port and the 3rd output port is as described dimming control signal, and the most described constant-current source chip is also as described control input block.Described at least one control unit includes a microprocessor, two input ports of described microprocessor respectively with described second and the 3rd output port be connected, and according to second and the 3rd the output signal of output port export multiple default pwm signals to the control end of the plurality of switching tube.
Further, the one during described control input block is input power collecting unit and multiple wireless remote control signals reception processing unit.Wherein input power collecting unit is for gathering the voltage of the input power powered for described power source drive unit, and the voltage collected is as described dimming control signal.
In another embodiment, described input power is mains electricity, described power source drive unit includes the driving chip that mains electricity is converted to constant current output and a multiple switching tube, and the constant current outfan of described driving chip is connected with the positive pole of described multi-channel semiconductor light source；First end of the plurality of switching tube is connected with the negative pole of corresponding semiconductor light source respectively, its second end ground connection；Described control unit includes a microprocessor, and an input of described microprocessor is connected with the outfan of described control input block, and exports the control end of multiple default pwm signals extremely the plurality of switching tube according to described dimming control signal.
In another embodiment, being also associated with isolated location between outfan and the control end of the plurality of switching tube of multiple pwm signals of described control unit, described isolated location is the one in optocoupler and magnetic coupling.
Present invention also offers the light-dimming method of a kind of multichannel light modulating device, it includes step:
Producing multiple pwm signals according to described dimming control signal, the plurality of pwm signal drives the extinguishing of multi-channel semiconductor light source by controlling a power source drive unit and lights；
Wherein, the time that the configuration of the dutycycle of at least some of pwm signal in the plurality of pwm signal makes its corresponding semiconductor light source controlled extinguish is no more than its persistence, and the frequency of described at least some of pwm signal is more than or equal to 200HZ.
Preferably, the configuration of the dutycycle of described at least some of pwm signal makes at least some of semiconductor light source of correspondence alternately be lighted.
The multichannel light modulating device of the present invention has the advantage that
1) mode of driven is used to utilize single power source drive unit to replace the multiple semiconductor light source of starter; so; when using constant-current source to drive; the alternately output of the driving electric current of its output is to this multi-channel semiconductor light source; that is the work of driver element is stable; not havinging the situation of intermittent overvoltage protection, circuit runs more stable, and service life is longer；
2) within a driven cycle, this multi-channel semiconductor light source is not no more than the time of its twilight sunset by the time of starter (but electric), therefore, this multi-channel semiconductor light source is constantly in mixed light state in whole drive cycle, frequency after more than 200HZ, naked eyes None-identified starter and twilight sunset state.When this multi-channel semiconductor light source is the semiconductor light source with different colours or colour temperature or brightness, then can realize multistage or electrodeless regulation colour temperature, the dimming effect of brightness by the dutycycle adjusting the pwm signal of each lamp；
3) can realize only driving with a conventional ADS driving chip purpose of multi-channel semiconductor light source, then can accomplish the least with the volume that the semi-conductor light source device of this light modulating device and multi-channel semiconductor light source is overall so that the application surface of this semi-conductor light source device is wider；
4) semiconductor light source is by intermittent starter, and caloric value greatly reduces, and light source is longer for service life.
5) carrying out ratio with original pattern carrying out color-temperature regulating by the way of regulation driving chip output electric current, be that structure is simpler, cost significantly reduces, and has the highest cost performance.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of multichannel light modulating device of the present invention.
Fig. 2 is that in Fig. 1, multichannel light modulating device optionally controls input equipment and control signal type schematic diagram thereof.
Fig. 3 is the functional block diagram of control unit in Fig. 1.
Fig. 4 is the driving principle figure of power source drive unit in Fig. 1.
Fig. 5 is the three road semiconductor light sources luminous situation schematic diagram under a drive cycle in one embodiment of the invention.
Fig. 6 is the structured flowchart of multichannel light modulating device in one embodiment of the invention.
Fig. 7 is the structured flowchart of multichannel light modulating device in another embodiment of the present invention.
Fig. 8 is the structured flowchart of multichannel light modulating device in further embodiment of this invention.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, multichannel light modulating device of the present invention and light-dimming method thereof are described in further detail.
Fig. 1 shows functional structure and the control signal flow process of the multichannel light modulating device of the present invention.This multichannel light modulating device functionally divides, and mainly includes controlling input equipment, control unit and power source drive unit, is used for driving multi-channel semiconductor light source (light source N, N are integer for light source 1, light source 2...), and can realize multiple dimming effect.
Wherein, input block is controlled for inputting the corresponding dimming control signal of generation (dimming control signal 1, dimming control signal 2..., dimming control signal M, M are integer) according to user.Controlling input block can be electric switch or wireless remote control input module, such as Wi-Fi remote control module, infrared remote control module or RF remote-controlled module, is also with smart machine and coordinates wireless receiving module as controlling input block, sees Fig. 2.Corresponding, dimming control signal can be the signal of telecommunication or packet/stream.It should be understood that multichannel light modulating device possible configuration multiple control input block, it is user-friendly to.
Control unit selects the corresponding light-modulating mode preset for the dimming control signal that basis receives, and according to selected default light-modulating mode output mode control signal.Control unit preferably employs chip, and such as single-chip microcomputer, microcontroller (MCU) etc. realize its function.In one embodiment, refer to Fig. 3, multiple light-modulating mode (preset mode 1 it is preset with in control unit, preset mode 2..., preset mode M), every kind of light-modulating mode include duty cycle information corresponding for semiconductor light source 1 to N N number of with to be controlled (light source 1 dutycycle, light source 2 dutycycle ..., light source N dutycycle), and the temporal information that significant level (such as high level) starts.Every kind of light-modulating mode correspondence one dimming effect, in theory by adjusting duty cycle data, permutation and combination can go out very many dimming effects.Control unit also includes a signal identification module, for being identified the dimming control signal received, and selects the default light-modulating mode of correspondence after recognition.Control unit also includes a signal generating module, and this signal generating module produces multiple pwm signals (pwm signal 1, pwm signal 2..., pwm signal N) using as mode control signal according to selected default light-modulating mode, and exports.In other embodiments, mode control signal can realize with triangular signal, pulse signal or different electric pressure signals etc., corresponding, multiple default light-modulating mode includes triangular signal parameter, pulse signal parameter or the voltage level parameters etc. of correspondence.It should be understood that actual application can configure mode control signal that multiple control unit is enough to export quantity according to demand.
Power source drive unit is for driving multi-channel semiconductor light source build-up of luminance according to the mode control signal received.In the preferred embodiment; power source drive unit uses a constant-current source to drive power supply to coordinate multiple these multi-channel semiconductor light sources of the seamless driven of switching device (see figure 4); namely this constant-current source chip persistently exports constant current in circulation drive cycle (namely a driven cycle) and drives multi-channel semiconductor light source successively; that is the work of driver element is stable; do not have the situation of intermittent overvoltage protection; circuit runs more stable, and service life is longer.When using pwm signal to be controlled, the dutycycle sum of the pwm signal of multi-channel semiconductor light source is 1.
Fig. 5 shows that, within a control cycle (driven cycle), three semiconductor light sources are by the light mixing effect of seamless driven.It can be seen that these three semiconductor light source achieves omnidistance mixed light, and at any time, there is a lamp to be in ignition phase, and other two lamps are in twilight sunset state.In view of different-colour, the fluorescent material of the light source of different colours has different sunset glow time and different efficiency, can adjust the difference on this light source slightly by slightly adjusting this dutycycle.When three lamp color temperature differences, can realize regulating colour temperature.Again by the distribution of the dutycycle of three pwm signals of regulation, multiple dimming effect can be realized.
In addition, within a driven cycle, at least one of only electricity (namely the non-ignition phase) time in multi-channel semiconductor light source is no more than the persistence of this light source, and the frequency of pwm signal is all higher than the discernible scope of human eye (typically greater than or equal to 200HZ).It is to say, at least some of semiconductor light source is human eye None-identified at its non-ignition phase, sensuously light source is continuously in the state lighted with mixed light.The benefit being so designed that is: semiconductor light source is by intermittent starter, and caloric value greatly reduces, and light source is longer for service life.The most most important advantage is: only drive power supply to drive multi-channel semiconductor light source with one, then can accomplish the least with the volume that the semi-conductor light source device of this light modulating device and multi-channel semiconductor light source is overall so that the application surface of this semi-conductor light source device is wider.And, this multi-channel semiconductor light source is constantly in mixed light state in whole drive cycle, when this at least some of semiconductor light source is the semiconductor light source with different colours or colour temperature or brightness, then achieves regulation colour temperature, the dimming effect of brightness.Every kind of default light-modulating mode can colour temperature or brightness after corresponding a kind of regulation.
May be appreciated, in other embodiments, can use constant pressure source or other drive circuit that semiconductor light source is driven, when multiple quasiconductors are driven, the mode of seamless driven can not be used, such as can simultaneously drive in multi-channel semiconductor light source in a drive cycle is at least some of, or the most all semiconductor light sources are all in twilight sunset state, it is possible to realizes similar regulation colour temperature and regulates the effect of brightness.Those skilled in the art may utilize driving chip or pure circuit structure realizes the function of power source drive unit.
To sum up, the light-dimming method of above-mentioned multichannel light modulating device includes step:
1) generation dimming control signal is inputted according to user；
2) identify described dimming control signal, and select corresponding default light-modulating mode；
3) convert this default light-modulating mode and export corresponding pwm signal to power source drive unit, make power source drive unit alternately multi-channel semiconductor light source described in build-up of luminance within a control cycle, and continue；Wherein said light-modulating mode is: fill each road build-up of luminance light source duty ratio within a driven cycle, and permutation and combination forms default light efficiency light-modulating mode.And, in a duty cycle, at least one of only electricity time in described multi-channel semiconductor light source is no more than its persistence.
As shown in Figure 6, in one embodiment of the invention, the power source drive unit of multichannel light modulating device includes a constant-current source chip U1 and peripheral circuit (not shown) thereof and multiple switching tube (illustrate only two switching tube Q1 and Q2 in figure).Constant-current source chip U1 has input port AC1 and AC2 of connection external power source (such as mains electricity), and one can be to the first output port OUT1 of the positive pole output constant current of multi-channel semiconductor light source (illustrate only two semiconductor light source LED1 and LED2 in figure).Switching tube Q1 and Q2 can be audion or metal-oxide-semiconductor, uses metal-oxide-semiconductor in the present embodiment.First end of switching tube Q1 with Q2 negative pole with semiconductor light source LED1 and LED2 respectively is connected, its second end ground connection, and it controls end and connects control unit, and the controlled unit of its on off state controls.When switching tube Q1 and Q2 turns on, it is luminous by starter that constant-current source chip U1 flows through semiconductor light source LED1 and LED2, semiconductor light source LED1 and LED2 from the electric current that the first output port OUT1 exports, and is in starter section.When switching tube Q1 and Q2 ends, the loop of semiconductor light source LED1 and LED2 is disconnected, and semiconductor light source LED1 and LED2 is in twilight sunset section.
Constant-current source chip U1 also can recognize that switching-on and switching-off state, and it also has second and the 3rd output port CON1, CON2 of the signal that when re-powering after each power-off of input port AC1 and AC2, output is contrary with output signal after previous powering on.The output signal of the second output port and the 3rd output port CON1, CON2 is output to control unit as dimming control signal, and therefore in the present embodiment, constant-current source chip U1 is also as controlling input block.Constant-current source chip U1 can use, and is the chip of OZ2082 such as but not limited to model.
In the present embodiment, control unit includes microprocessor U2 and peripheral circuit thereof, two input port IO1 with IO2 of microprocessor U2 respectively with the second of constant-current source chip U1 and the 3rd output port CON1, CON2 be connected.By internal processes, microprocessor U2 to second and the 3rd the reversion of signal of output port CON1, CON2 output be identified, to determine the default light-modulating mode needing output.Such as, when first group of CON1, CON2 signal being detected, export two contrary pwm signals of first group, alternately control two semiconductor light sources luminous to reach the first dimming effect.When second group CON1, CON2 signal contrary with first group of CON1, CON2 signal being detected, export second group, there are two pwm signals different from the dutycycle of the pwm signal of first group, to reach the second dimming effect, by that analogy, after completing last a kind of dimming effect, start the first dimming effect.The benefit done so is that we can break away from the shortcoming of two kinds of light source inequivalence luminous fluxes, is obtained the colour temperature of oneself demand by programme-control.Additionally, due to two-way pwm signal is completely contrary, the output of first output port of chip U1 keeps constant, is difficult to the situation intermittent overvoltage protection occur.In like manner, when using the semiconductor light source of two different brightness, the effect of brightness regulation can be realized.The model of chip U1 is optional, but is not limited to Atmal
tiny13。
It will be appreciated by those skilled in the art that, the circuit in Fig. 6 is only an electrical block diagram, in actual applications, also include the peripheral circuit of each chip, and the structure design of peripheral circuit is limited to used chip, and those skilled in the art can complete, and does not repeats them here.
In another embodiment of the invention, the present invention can be realized on the basis of existing product, namely utilize the driving chip on existing product to realize, can directly remove additional driving chip, add control unit and control input block.
Its structure chart is as shown in Figure 7, wherein, the power source drive unit of multichannel light modulating device includes conventional ADS driving chip (a constant-current source chip, such as model are SD6800) U21 and peripheral circuit (not shown) thereof and multiple switching tube (illustrate only two switching tube Q1 and Q2 in figure).Driving chip U21 has input port AC1 and AC2 connecting mains electricity, and one can be to the first output port OUT1 of the positive pole output constant current of multi-channel semiconductor light source (illustrate only two semiconductor light source LED1 and LED2 in figure).First end of switching tube Q1 with Q2 negative pole with semiconductor light source LED1 and LED2 respectively is connected, its second end ground connection, and it controls end and connects control unit, and the controlled unit of its on off state controls.When switching tube Q1 and Q2 turns on, it is luminous by starter that its driving chip U21 flows through semiconductor light source LED1 and LED2, semiconductor light source LED1 and LED2 from the electric current that the first output port OUT1 exports, and is in starter section.When switching tube Q1 and Q2 ends, the loop of semiconductor light source LED1 and LED2 is disconnected, and semiconductor light source LED1 and LED2 is in twilight sunset section.
In the present embodiment, controlling input block is an input power collecting unit, and this power supply collecting unit exports to control unit as dimming control signal for the voltage of Gather and input power supply, the voltage collected.Power supply collecting unit can use the structure of existing any voltage collection circuit, does not therefore repeat them here.
Control unit includes microprocessor U22 and peripheral circuit thereof, and an input IO2 of microprocessor U22 is connected with the outfan of power supply collecting unit, the control end of its outfan PWM1 and PWM2 connecting valve pipe Q1 and Q2 respectively.By internal processes, the signal that power supply collecting unit is exported by microprocessor U22 is identified, to determine the default light-modulating mode needing output.Such as, similar with a upper embodiment, when detect first power on time, export two contrary pwm signals of first group, alternately control two semiconductor light sources luminous to reach the first dimming effect.When detect second time power on time, export second group, there are two pwm signals different from the dutycycle of the pwm signal of first group, to reach the second dimming effect, by that analogy, move in circles.
It should be understood that available wireless remote control equipment replaces power supply collecting unit to realize the purpose according to user's input and output dimming control signal.
Fig. 8 shows the circuit structure schematic diagram of third embodiment of the invention, with the difference of a upper embodiment, it is that power source drive unit also includes an isolated location U23, it is connected between outfan PWM1 and PWM2 of microprocessor U22 and the control end of switching tube Q1 and Q2, to realize signal isolation, reduce system interference.Isolated location U23 can be the one in optocoupler and magnetic coupling.It should be understood that isolated location applies also in the first embodiment.
Carry out although the description of this invention combines embodiments above, but, those skilled in the art can carry out many replacement, modifications and variations according to above-mentioned content, be apparent from.Therefore, all such replacements, improve and change in the spirit and scope being included in appended claims.
Claims (11)
1. a multichannel light modulating device, is used for controlling multi-channel semiconductor light source build-up of luminance, it is characterised in that including:
Control input equipment, for inputting generation dimming control signal according to user；
Control unit, it is for selecting corresponding default light-modulating mode according to described dimming control signal, and according to selected default light-modulating mode output mode control signal；
Power source drive unit, it is for according to multi-channel semiconductor light source build-up of luminance described in described mode control signal driven；
Wherein, within a driven cycle, the at least one of only electricity time in described multi-channel semiconductor light source is no more than its persistence, described default light-modulating mode is, by filling the dutycycle of the mode control signal of each road semiconductor light source within a driven cycle, the dutycycle sum making the mode control signal of multi-channel semiconductor light source is 1, uses permutation and combination and is shaped as various light-modulating mode.
2. according to the multichannel light modulating device described in claim 1, it is characterised in that the frequency of described mode control signal is more than or equal to 200HZ.
3. a light-dimming method based on the multichannel light modulating device described in claim 1, it is characterised in that including:
1) generation dimming control signal is inputted according to user；
2) identify described dimming control signal, and select corresponding default light-modulating mode；
3) convert this default light-modulating mode and export corresponding PWM signal to power source drive unit, make power source drive unit alternately multi-channel semiconductor light source described in build-up of luminance within a control cycle, and continue；Wherein said light-modulating mode is: fill each road build-up of luminance light source duty ratio within a driven cycle, and permutation and combination forms default light efficiency light-modulating mode；
Wherein, in a duty cycle, at least one of only electricity time in described multi-channel semiconductor light source is no more than its persistence, and the frequency of described PWM signal is more than or equal to 200HZ.
4. a multichannel light modulating device, it is characterised in that including:
One power source drive unit, it is for providing nominal operational voltage or electric current to multi-channel semiconductor light source；
At least one controls input block, and it is for inputting the corresponding dimming control signal of generation according to user；
At least one control unit, it exports multiple PWM signals according to described dimming control signal to described power source drive unit, utilize described power source drive unit to control described multi-channel semiconductor light source with realization extinguish according to the plurality of PWM signal and light, it is achieved the light mixing effect preset simultaneously；
Wherein, at least some of semiconductor light source in described multi-channel semiconductor light source is under the control of its PWM signal, and its time extinguished is no more than its persistence, thus can realize this at least some of semiconductor light source omnidistance mixed light in a drive cycle;Described at least some of semiconductor light source is alternately lighted in one drive cycle.
5. according to the multichannel light modulating device described in claim 4, it is characterised in that described at least some of semiconductor light source is the semiconductor light source with different colours or colour temperature or brightness.
6. according to the multichannel light modulating device described in claim 4, it is characterised in that described power source drive unit includes a constant-current source chip and multiple switching tube；Described constant-current source chip has the input port connecting external power source, and one can to described multi-channel semiconductor light source positive pole export constant current the first output port, first end of the plurality of switching tube is connected with the negative pole of corresponding semiconductor light source respectively, its second end ground connection；Described constant-current source chip also can recognize that switching-on and switching-off state, it also has second and the 3rd output port of the signal that when re-powering after each power-off of described input port, output is contrary with output signal after previous powering on, the output signal of described second output port and the 3rd output port is as described dimming control signal, and the most described constant-current source chip is also as described control input block；
Described at least one control unit includes a microprocessor, two input ports of described microprocessor respectively with described second and the 3rd output port be connected, and according to second and the 3rd the output signal of output port export multiple default PWM signals to the control end of the plurality of switching tube.
7. according to the multichannel light modulating device described in claim 4, it is characterized in that, described control input block is the one in input power collecting unit and multiple wireless remote control signals reception processing unit, wherein input power collecting unit is for gathering the voltage of the input power powered for described power source drive unit, and the voltage collected is as described dimming control signal.
Multichannel light modulating device the most according to claim 7, it is characterized in that, described input power is mains electricity, described power source drive unit includes the driving chip that mains electricity is converted to constant current output and a multiple switching tube, and the constant current outfan of described driving chip is connected with the positive pole of described multi-channel semiconductor light source；First end of the plurality of switching tube is connected with the negative pole of corresponding semiconductor light source respectively, its second end ground connection；Described control unit includes a microprocessor, and an input of described microprocessor is connected with the outfan of described control input block, and exports the control end of multiple default PWM signals extremely the plurality of switching tube according to described dimming control signal.
9., according to the multichannel light modulating device described in claim 6 or 8, it is characterised in that be also associated with isolated location between outfan and the control end of the plurality of switching tube of multiple pwm signals of described control unit, described isolated location is the one in optocoupler and magnetic coupling.
10. a light-dimming method based on the multichannel light modulating device described in claim 4, it is characterized in that, including: producing multiple PWM signals according to described dimming control signal, the plurality of PWM signal drives the extinguishing of multi-channel semiconductor light source by controlling a power source drive unit and lights；
Wherein, the time that the configuration of the dutycycle of at least some of PWM signal in the plurality of PWM signal makes its corresponding semiconductor light source controlled extinguish is no more than its persistence, and the frequency of described at least some of PWM signal is more than or equal to 200HZ.
11. according to the light-dimming method described in claim 10, it is characterised in that the configuration of the dutycycle of described at least some of PWM signal makes at least some of semiconductor light source of correspondence alternately be lighted.
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Citations (2)
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| CN102421230A (en) * | 2011-09-15 | 2012-04-18 | 四川新力光源有限公司 | Color adjusting driver for LED (Light-Emitting Diode) lamp |
| CN103152932A (en) * | 2013-04-21 | 2013-06-12 | 杭州乐图光电科技有限公司 | LED (Light Emitting Diode) drive circuit capable of adjusting light and color temperature |
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| US8330393B2 (en) * | 2007-04-20 | 2012-12-11 | Analog Devices, Inc. | System for time-sequential LED-string excitation |
| JP5141874B2 (en) * | 2007-06-28 | 2013-02-13 | 東芝ライテック株式会社 | Lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102421230A (en) * | 2011-09-15 | 2012-04-18 | 四川新力光源有限公司 | Color adjusting driver for LED (Light-Emitting Diode) lamp |
| CN103152932A (en) * | 2013-04-21 | 2013-06-12 | 杭州乐图光电科技有限公司 | LED (Light Emitting Diode) drive circuit capable of adjusting light and color temperature |
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