CN202178895U - Light source control device - Google Patents
Light source control device Download PDFInfo
- Publication number
- CN202178895U CN202178895U CN2011202653057U CN201120265305U CN202178895U CN 202178895 U CN202178895 U CN 202178895U CN 2011202653057 U CN2011202653057 U CN 2011202653057U CN 201120265305 U CN201120265305 U CN 201120265305U CN 202178895 U CN202178895 U CN 202178895U
- Authority
- CN
- China
- Prior art keywords
- light source
- control
- light modulation
- light
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a light source control device which comprises a detection unit, a second determination unit and a control unit. The detection unit is used for receiving electric energy including chopper voltage and detecting the preset characteristic parameters of the chopper voltage. The second determination unit is used for determining light modulation items based on the value or value range of the characteristic parameters. The second determination unit is connected with the detection unit. The light modulation items are composed of the value or value range of at least one characteristic parameter of pulse driving signals. The control unit is used for determining a light source control strategy and controlling color and\or brightness of the light source control strategy indication for a light source. The control unit is connected with the second determination unit. The device of the utility model helps to realize a function for adjusting the color and\or brightness of the light source.
Description
The application be submitted that Patent Office of the People's Republic of China, application number are 201020582101.1 on October 28th, 2010, denomination of invention divides an application for the one Chinese patent application of " light source control device and system ".
Technical field
The utility model relates to the control field, relates in particular to a kind of light source control device.
Background technology
At lighting field, brightness or color that a lot of occasions need be regulated light source, this just requires illuminator to have regulatory function.
At present comparatively commonly used is the copped wave light regulating technology, is illustrated in figure 1 as a kind of circuit implementation structure of light source adjuster, and this light source adjuster comprises as the bidirectional trigger diode D1 of by-pass cock and the circuits for triggering that are made up of the adjustable resistance R1 and first capacitor C 1.
The operation principle of this light source adjuster is: when bidirectional trigger diode D1 was operated in conducting state, the output voltage V 1 of light source adjuster was an AC supply voltage; When bidirectional trigger diode D1 turn-offed, the output voltage V 1 of light source adjuster was a no-voltage; First capacitor C 1 is through adjustable resistance R1 charging, when the voltage on first capacitor C 1 rises to the conducting voltage of bidirectional trigger diode D1, and the bidirectional trigger diode D1 conducting that is triggered.Thereby; Variation through adjustable resistance R1 resistance causes the variation in the charging interval of first capacitor C 1; And then variation that should the charging interval causes the variation of the bidirectional trigger diode D1 angle of flow; Be embodied on the output voltage V 1 of light source adjuster, then form the for example chopping voltages such as forward position formula chopping voltage shown in Fig. 1 a.This chopping voltage is exported to the follow-up driver that light source drives that is used for, thereby light source is carried out the adjusting of brightness through driver.
For above copped wave light regulating technology, can only carry out light-source brightness through hardware mode and regulate, for example can't realize simultaneously that the light source colour variation waits other regulatory function in the color illumination system.
The utility model content
In view of this, the technical problem that the utility model will solve is, a kind of light source control device is provided, and can realize the regulatory function for light source colour and/or brightness etc.
For this reason, the utility model embodiment adopts following technical scheme:
The utility model embodiment provides a kind of light source control device, comprising:
Reception comprise chopping voltage electric energy, detect the detecting unit of the preset characteristic parameter of said chopping voltage;
According to second definite unit that the value and/or the span of said characteristic parameter are confirmed the light modulation project, this second definite unit is connected with said detecting unit; Said light modulation project is made up of the value and/or the span of at least one characteristic parameter of pulse drive signal;
Confirm the light source control strategy and then light source carried out the color of said light source control strategy indication and/or the control unit of brilliance control that according to said light modulation project this control unit and said second confirms that the unit is connected.
Preferably, said control unit comprises:
Confirm light source control strategy stator unit really according to said light modulation project;
According to the generation subelement of the target current value generation corresponding control signal that comprises in the light source control strategy, this generates subelement and is connected with said definite subelement;
Thereby with control signal import light source controller in case light source controller according to said control signal carry out self to the adjustment of each light source output current, make the corresponding target current value of its output realize transmission subelement for the adjusting of light source colour and/or brightness, this transmission subelement is connected with said generation subelement.
Technique effect analysis for technique scheme is following:
Confirm corresponding light modulation project according to conditioning signal; Thereby conditioning signal is converted into the pulse drive signal of light modulation project indication; Through pulse drive signal by-pass cock is controlled; Thereby make the corresponding voltage that comprises chopping voltage of by-pass cock controller output light modulation project, carry out the indication of light modulation project through said chopping voltage to light source drive, so that light source drive is to the color of dimming light sources project indication and/or the control of brightness.
Description of drawings
Fig. 1 is the circuit implementation structure figure of prior art light source adjuster;
Fig. 1 a is suitable for the light-source control system structural representation for the utility model embodiment;
Fig. 1 b is that the utility model is to output chopping voltage sketch map under first kind of mode of by-pass cock control;
Fig. 1 c is that the utility model is to output chopping voltage sketch map under the by-pass cock control second way;
Fig. 2 is the utility model embodiment light source control device structural representation;
Fig. 3 is the another kind of light source control device structural representation of the utility model embodiment;
Fig. 3 a～Fig. 3 g is the utility model embodiment light-source structure example;
Light-source control system topology example when Fig. 3 h has holding circuit for the utility model embodiment;
A kind of implementation structure example of the light source module when Fig. 3 i has holding circuit for the utility model embodiment;
Fig. 4 is the utility model embodiment light-source control system structural representation.
Embodiment
Below, be described with reference to the accompanying drawings the realization of the utility model embodiment light source control device and system.
The light source control device of the utility model embodiment goes in the light source regulating system shown in Fig. 1 a, and the structure of this system comprises:
Centralized driving module and at least one light source module that is connected with the centralized driving module, said light source module can be led module shown in Fig. 1 a or other light sources module; Wherein, said centralized driving module comprises: a regulated converter and a by-pass cock that is connected on the regulated converter output; Said by-pass cock is operated in conducting and off state (being the copped wave state) under the control of by-pass cock controller, thereby makes that the voltage of the led module output of level is chopping voltage backward.Through the conducting and the turn-off time of control adjusting switch, make that the voltage of exporting to led module is the chopping voltage of individual features parameter.Here, the voltage of said regulated converter output is direct voltage.The light source drive that comprises light source cell and carry out light source cell control in the led module of back level; Carry out the detection of chopping voltage by said light source drive; And carrying out the adjusting processing of light source in the light source cell accordingly, light source cell then receives said chopping voltage and imports as electric energy.
Fig. 2 is a kind of light source control device of the utility model embodiment, and this device can be used as the said by-pass cock controller in the centralized driving module, comprising:
First confirms unit 210, is used to obtain conditioning signal, confirms the light modulation project according to said conditioning signal; Said light modulation project is made up of the value and/or the span of at least one characteristic parameter of pulse drive signal;
Converting unit 220 is used for converting said conditioning signal into pulse drive signal that said light modulation project is indicated;
Wherein, said characteristic parameter comprises: duty ratio, frequency, high level time, low level time.
Preferably, first confirms that unit 210 can comprise:
Preset subelement is used for the corresponding relation between preset conditioning signal and the light modulation project;
Search subelement, be used for searching said corresponding relation, the light modulation project that adjusted signal is corresponding according to said conditioning signal.
Converting unit 220 specifically can be used for:
According to the light modulation project, directly convert conditioning signal into corresponding pulse drive signal; Perhaps,
Convert said conditioning signal into dc pulse signal; According to said light modulation project, convert said dc pulse signal into corresponding pulse drive signal.
On the basis of Fig. 2, more detailed explanation is carried out in the concrete realization of each unit in the described light source control device of the utility model embodiment.
Confirm unit 210 for first:
Said conditioning signal generally carries out the input of regulating command through user's adjusting operation, and then according to the regulating command that user's adjusting operation is imported, produces circuit by conditioning signal and generate corresponding conditioning signal.
Wherein, said conditioning signal produces circuit and can be made up of light-control knob and/or toning knob, produces the conditioning signal of regulating brightness and the conditioning signal of regulating color respectively by light-control knob and toning knob, thereby constitutes said conditioning signal; Perhaps, said conditioning signal produces circuit and can be realized by the light modulating device of remote controller class, through the operation of user for light modulating device, produces conditioning signal by said light modulating device; Perhaps, said conditioning signal also can realize through digitial controller, and the program of in digitial controller, being imported by the user is confirmed the conditioning signal of required output; Perhaps, said conditioning signal also can be realized by the standard interface signal of light adjusting systems such as DALI, DMX, repeat no more here.
Conditioning signal produce conditioning signal that circuit produces corresponding user's input the adjusting luminance instructions and/or regulate the color instruction; For example, the conditioning signal of output is that scope is the level signal of 1V～10V, representes to regulate brightness when the setting conditioning signal is the level signal in 1V～5V scope, representes to regulate color when conditioning signal is the level signal in 5V～10V scope; Conditioning signal also can be digital signal, is distinguished by different digital signals and regulates brightness and regulate color etc., does not give unnecessary details here.
In concrete the realization; Can preestablish different light modulation projects; And the light modulation project has corresponding relation with the corresponding conditioning signal of different light modulation instructions; Thereby in this unit, directly from said corresponding relation, search, can obtain the corresponding light modulation project of said conditioning signal according to the conditioning signal that is generated.
The said light modulation project of the utility model embodiment can be made up of: the value of at least one characteristic parameter of pulse drive signal and/or span.
For example, conditioning signal also basis carries out color and/or brightness regulation, and is divided into: conditioning signal is 1～3V; 4～6V; Three kinds of signals of 7～10V, these three kinds of conditioning signals corresponding respectively adjusting brightness, regulate color, regulate color and three kinds of light modulations instructions of brightness; The light modulation project is divided into light modulation project 1,2,3, regulates the corresponding light modulation project 1 of brightness, regulates the corresponding light modulation project 2 of color, and regulating brightness simultaneously is light modulation project 3 with regulating color; Then, can preestablish, conditioning signal is the corresponding light modulation project 1 of 1～3V; Conditioning signal is the corresponding light modulation project 2 of 4～6V, and conditioning signal is the corresponding light modulation project 3 of 7～10V, then in concrete the realization; Can find corresponding light modulation project accordingly according to the amplitude of the conditioning signal that receives.
For converting unit 220:
Said characteristic parameter in the said light modulation project can comprise: duty ratio, frequency, high level time, low level time etc.
For example, in concrete the realization, can carry out the division of light modulation project through the different values and/or the span of a characteristic parameter; For example; The light modulation project is made up of different duty ratio value and/or spans, and is concrete, can set: duty ratio is 10%～30% for light modulation project 1; Duty ratio is 40%～60% for light modulation project 2, and duty ratio is 70%～90% to be light modulation project 3;
Perhaps, also can carry out the division of light modulation project through the different values and/or the span of two characteristic parameters or a plurality of characteristic parameters, for example, the light modulation project is carried out the division of light modulation project by the different values and/or the span of frequency and duty ratio.Perhaps, different values and/or span that also can setpoint frequency be carried out the adjusting of color, and the different values of duty ratio and/or span are carried out the adjusting of brightness.
In addition, also can be divided into a plurality of grades to the adjusting of said color and/or brightness, thereby can set the number of light modulation project as required, and then reasonably carry out the division of characteristic parameter value and/or span.
For example; For example regulate the corresponding light modulation project 2 of color according to aforementioned two, light modulation project 2 is 10%～30% to constitute by duty ratio; Then divide different grade to regulating color; Promptly on the basis of light modulation project 2, set light modulation project 21, light modulation project 22 and light modulation project 23 and represent red, green and blue three-color respectively, then can duty ratio 10%～30% be divided into three scopes, represent light modulation project 21, light modulation project 22 and light modulation project 23 respectively.
In addition, the realization of converting unit 220 can also be divided into two kinds of situation according to the realization of conditioning signal:
Situation one: if said conditioning signal is a dc pulse signal, then the realization of this unit can comprise:
According to the light modulation project, directly convert conditioning signal into corresponding pulse drive signal.
Situation two: if said conditioning signal is not a dc pulse signal, then the realization of this unit can comprise:
The first conversion subelement is used for converting said conditioning signal into dc pulse signal;
The second conversion subelement is used for according to said light modulation project, converts said dc pulse signal into corresponding pulse drive signal.
For example, when conditioning signal is the level signal in 1V～3V scope, then need the level signal of 1V～3V be converted into and the corresponding pulse drive signal of 10%～30% duty ratio for example, be used for control adjusting switch according to aforementioned; Convert the level signal of 4V～6V into 40%～60% duty ratio corresponding pulse drive signal.
For output unit 230:
Said by-pass cock is controlled comprises:
First kind of mode: in institute is free, all export chopping voltage, shown in Fig. 1 b.
The second way: in the time by-pass cock is carried out copped wave control at the t1 of the t2 that gets access to conditioning signal in the time; T1＜t2, t1 >=1/f, f are the switching frequency of by-pass cock, t2 gets access to conditioning signal for this and gets access to the time interval between the conditioning signal next time.Said t1 is in the time outside the time in the time for t2 after getting access to conditioning signal, and control adjusting switch is in conducting state.Shown in Fig. 1 c.
Said copped wave control that is to say the pulse drive signal that carries out copped wave control that within said t1, generates the conditioning signal correspondence, and in other time period, generates the drive signal that makes the by-pass cock conducting.
Further, said t1 is preferably less than t2, or even is far smaller than t2.Because, for centralized driving module and light source module, as long as the conditioning signal of centralized driving module output is received and detect the transmission that can realize the light modulation instruction by light source module; And if t1 equals t2, also can realize the transmission of light modulation instruction, but as as the prior art when carrying out the light-source brightness adjusting; The centralized driving module continues the output chopping voltage; Then electromagnetic interference maybe be occurred, therefore, promptly electromagnetic interference can be reduced through output chopping voltage among the t1 in t2 only.
Corresponding with the described light source control device of Fig. 2, the utility model embodiment also provides another kind of light source control device, and this device is arranged in the light source module as the light source drive that light source cell is carried out drive controlling.As shown in Figure 3, this device comprises:
Detecting unit 310 is used to receive the electric energy that comprises chopping voltage, detects the preset characteristic parameter of said chopping voltage;
Second confirms unit 320, is used for confirming the light modulation project according to the value and/or the span of said characteristic parameter; Said light modulation project is made up of the value and/or the span of at least one characteristic parameter of pulse drive signal;
Said control unit 330 can comprise:
Confirm subelement, be used for confirming the light source control strategy according to said light modulation project;
Generate subelement, be used for the target current value that comprises according to the light source control strategy, generate control signal corresponding;
The transmission subelement; Be used for control signal is imported light source controller; So that light source controller carries out self adjustment to each light source output current according to said control signal, make the corresponding target current value of its output, thereby realize adjusting for light source colour and/or brightness.
Among the utility model embodiment shown in Figure 3, receive the electric energy that comprises chopping voltage, detect the preset characteristic parameter of said chopping voltage; Value and/or span according to said characteristic parameter are confirmed the light modulation project; Confirm the light source control strategy according to said light modulation project; And then light source carried out the color of said light source control strategy indication and/or the control of brightness; Thereby light source drive can be discerned the light modulation project through chopping voltage, and then realizes for the color of light source in the light source cell and/or the control of brightness.
For detecting unit 310:
Said preset characteristic parameter confirms that according to the characteristic parameter that said light modulation project is comprised for example, the light modulation project is made up of the value and/or the span of duty ratio, and then said preset characteristic parameter also is that said duty ratio gets final product; Perhaps, said light modulation project is made up of frequency and high level time, and then said preset characteristic parameter is said frequency and high level time.That is to say:, thereby confirm that corresponding light modulation project gets final product as long as detect said preset characteristic parameter.
According to the concrete value of detected preset characteristic parameter in the detecting unit 310, can search each light modulation project accordingly, thereby obtain the light modulation project that concrete value belonged to of said preset characteristic parameter.
Here, preset said light modulation project should be identical with preset light modulation project in the corresponding centralized driving module in the light source drive, thereby can guarantee that light source drive carries out the adjusting of light source according to the instruction of the light modulation in the centralized driving module.
For example, give an example according to aforementioned, detecting duty ratio is 10%～30%; Then, can confirm that corresponding light modulation project is a light modulation project 1, and light modulation project 1 correspondence is carried out the adjusting of light-source brightness; Accordingly; In control unit 330, will carry out the adjusting of light source according to the concrete regulating command of light modulation project 1 correspondence.
For control unit 330:
In this unit, can preset the corresponding relation between different light modulation projects and the light source control strategy, can carry out confirming of light source control strategy according to the light modulation project.
The corresponding aforesaid regulating command of said light source control strategy, for example, the light source control strategy can comprise: light source is carried out the adjusting of brightness and/or color; Perhaps, also can comprise: light source is carried out the adjusting grade of brightness and/or color adaptation etc.
General, can preset different light source control strategies is different target current values, thus the realization of this unit can for:
Confirm the light source control strategy according to said light modulation project;
According to the target current value that comprises in the light source control strategy, generate control signal corresponding;
Control signal is imported light source controller, so that light source controller carries out self adjustment to each light source output current according to said control signal, make the corresponding target current value of its output, thereby realize adjusting for light source colour and/or brightness.
In addition, at the light-source structure of required control not simultaneously, the control method in this unit may be different, are that mainly the signal of exporting to light source or light source controller is different.
Below, be that led module is an example with the light source module, more detailed explanation is carried out in the said color and/or the brilliance control of this unit:
(1) structure of led module is: a kind of LED lamp of color or the LED lamp of at least two kinds of colors; The all corresponding DC/DC circuit of the LED lamp of every kind of color; The DC/DC circuit constitutes LED current control circuit (being said light source controller); To carry out the color of each paths of LEDs lamp and/or the control of brightness through electric current, said DC/DC circuit then receives the control of light source drive output signal.
For example, under the light-source structure shown in Fig. 3 a, a led module comprises lamp R lamp, G lamp and the B lamp of three kinds of colors, and three DC/DC circuit are controlled the electric current of R lamp, G lamp and B lamp three paths of LEDs lamps respectively.
Concrete; Light source drive generates accordingly for DC/DC circuit control signal according to the light source control strategy, for example is a certain light source control strategy current corresponding, and the DC/DC circuit is according to each paths of LEDs lamp of the corresponding control of said control signal of input; For example; Current reference signal or feedback signal in the control signal control DC/DC circuit change the electric current of each paths of LEDs lamp, thereby can change the brightness or the color of led module.
Fig. 3 b is a kind of concrete realization based on Fig. 3 a; In Fig. 3 b, the DC/DC circuit adopts BUCK circuit topology and control circuit thereof, the switching tube S2 in this control circuit control BUCK main circuit; The electric current that makes output is a set point, and this set point receives the control of light source drive.In addition, the DC/DC circuit shown in Fig. 3 b can also be the DC/DC converter of other non-isolation type, like Boost, or circuit such as Buck-Boost, do not limit here.
Fig. 3 c is second kind of concrete realization based on Fig. 3 a, and the LED current control circuit adopts isolated form Flyback circuit topology and control circuit thereof.The LED current control circuit can also be other isolated form circuit, like Forword, and bridge circuit, push-pull circuit, or LLC class resonant circuit etc., do not limit here.
(2) structure of led module is: a constant-current circuit and be connected in parallel on the LED lamp of at least two kinds of colors of constant-current circuit output; The control switch that the LED current control circuit comprises constant-current circuit and is connected in parallel on LED lamp two ends carries out the color of each paths of LEDs lamp and/or the control of brightness through electric current, and said LED current control circuit then receives the control of light source drive output signal.
Shown in Fig. 3 d, led module comprises a constant-current circuit, and the output of constant-current circuit connects R lamp, G lamp and the B lamp that is in series, and control switch Sr1, Sr2 and Sr3 are connected in parallel on R lamp, G lamp and B lamp two ends respectively.
Described constant-current circuit can be the DC/DC circuit of non-isolation type, like Buck, and Boost, or circuit such as Buck-Boost; Can be the Switching Converter Topologies of isolated form also, like Flyback, Forword, bridge circuit, push-pull circuit, or LLC class resonant circuit etc., also can be linear adjustment circuit.
Said light source drive is exported control signal respectively and is given control switch Sr1, Sr2, Sr3, and constant-current circuit.Said control signal can be pulse signal.
Light source drive can be controlled the current amplitude of its output, the total brightness of promptly regulating led module through the control constant-current circuit; Can control the electric current duty ratio of every road R lamp, G lamp, B lamp through control control switch Sr1, Sr2, Sr3, thus the color of control LED lamp module.
Need to prove, can comprise any two kinds or two kinds of LED lamps that color is above in the led module, and the control corresponding switch.
Fig. 3 e is a kind of concrete realization of Fig. 3 d, and constant-current circuit adopts non-isolation type Buck circuit topology and control circuit thereof.Fig. 3 f is another kind of concrete realization of Fig. 3 d, and constant-current circuit adopts linear adjustment circuit.Wherein S2 is the adjustment pipe.
(3) structure of led module is: each led module comprises: the lamp of a kind of color of light source drive and light source drive output parallel connection or the LED lamp of at least two kinds of different colours, and with the current-limiting circuit of the LED lamp series connection of each branch road; All current-limiting circuits in led module constitute LED current control circuits.In addition, the LED lamp of a kind of color of can connecting in the major loop can not connected yet.
Shown in Fig. 3 g, each led module comprises: the lamp of a kind of color of a light source drive and its output parallel connection or the LED lamp of at least two kinds of different colours, and with the current-limiting circuit of the LED lamp series connection of each branch road; All current-limiting circuits in led module constitute LED current control circuits.The LED lamp of a kind of color of can connecting in the major loop can not connected yet.
The W lamp is connected in the total loop, and light source drive is exported three control signal Iset1, Iset2 and Iset1, controls the electric current of R, G, B lamp branch road respectively, through controlling the purposes that this three kinds of load branch electric currents realize regulating colors and/or brightness.
With reference to Fig. 3 g, described current-limiting circuit can be adjusted circuit for linearity, is example with the current-limiting circuit of R lamp branch road, comprises current-limiting control circuit, sampling resistor Rs1, adjustment pipe S1.This load branch of current-limiting control circuit sampling electric current I 1, and with sampled signal and predefined value Iset1 relatively, output drive signal is given adjustment pipe S1 is managed the size of S1 impedance through the control adjustment, makes constant flow module export constant electric current.
Light source drive output control signal corresponding control current-limiting circuit is through the electric current of each LED branch road in the current-limiting circuit change led module.
In addition, among above the utility model embodiment, because the output of centralized driving module is the voltage that comprises chopping voltage; Therefore, can constitute influence to back level light source module, therefore; Can between centralized driving module and light source module (among Fig. 3 h be example with the led module), increase voltage hold circuit; The signal of holding circuit output is non-fluctuating direct voltage, after then the input voltage of level light source module passes through voltage hold circuit, is non-fluctuating direct voltage; To not influence the operate as normal of back level led module when therefore, the centralized driving module is exported chopping voltage.But the voltage of said light source drive input still should be the voltage without the overvoltage holding circuit.For example, in the circuit shown in Fig. 3 h, the output voltage of centralized driving module is through voltage hold circuit, thereby stable electric energy is provided for led module; And the output voltage of centralized driving module is also directly imported in the light source drive, thereby guarantees that light source drive can detect the chopping voltage signal, carries out the adjusting control of light source colour and/or brightness.Shown in Fig. 3 i, said voltage hold circuit can be realized through diode and electric capacity; And Fig. 3 i for Fig. 3 a at the implementation structure that has under the voltage hold circuit, other also can increase voltage hold circuit like Fig. 3 b～Fig. 3 g etc., concrete structure is not given unnecessary details with reference to figure 3h and Fig. 3 i here.
In addition, the above said light source control device of the utility model also has the following advantages:
At first, as shown in Figure 1, the by-pass cock among Fig. 1 is through opening and turn-off the copped wave that can realize for alternating voltage, and the by-pass cock described in Fig. 1 a is then realized the copped wave for direct voltage.Therefore; Copped wave among Fig. 1 is that alternating voltage is carried out copped wave; Chopping voltage is transferred to the driver among Fig. 1; Undertaken the unified adjusting of level light source thereafter by driver, and in the time need carrying out the adjusting of light source colour and/or brightness to each corresponding light source of a certain driver, above method is also inapplicable; The described light source control device of the utility model then goes for the Different Light in the same driver is carried out respectively the adjusting of color and/or brightness.
And, under circuit structure shown in Figure 1, need respectively different light source modules to be provided with different drivers, therefore, the final general volume of realizing of light source is bigger; Then realized adjusting processing in the utility model, thereby reduced the realization volume of light source, reduced cost for a plurality of light source modules through centralized driving module and a plurality of light source module.
Secondly; Can obtain pulse square wave through copped wave in the utility model; And the frequency of pulse square wave all is feasible at a relative broad range, and the duty ratio of by-pass cock is exactly that back level light source module carries out the duty ratio that light source is regulated brightness, forms the standardized designs in the industry easily;
In addition, and in the prior art alternating voltage is carried out copped wave and compare, the light source control device of the utility model is good for electrical network AC side Electro Magnetic Compatibility, and power factor is high.
In addition, the utility model embodiment also provides a kind of light-source control system, and is as shown in Figure 4, comprising:
By-pass cock controller 410 is used to obtain conditioning signal, confirms the light modulation project according to said conditioning signal; Said light modulation project is made up of the value and/or the span of at least one characteristic parameter of pulse drive signal; Said conditioning signal is converted into the pulse drive signal of said light modulation project indication; Through pulse drive signal by-pass cock is controlled, to export the corresponding voltage that comprises chopping voltage of said light modulation project;
Light source drive 420 is used to receive the electric energy that comprises chopping voltage, detects the preset characteristic parameter of said chopping voltage; Value and/or span according to said characteristic parameter are confirmed the light modulation project; Said light modulation project is made up of the value and/or the span of at least one characteristic parameter of pulse drive signal; Confirm the light source control strategy according to said light modulation project, and then light source is carried out the control of said light source control strategy indication.
In the device and system of Fig. 1～shown in Figure 4; In centralized driving module one side; Confirm corresponding light modulation project by the by-pass cock controller according to conditioning signal; Thereby convert conditioning signal into pulse drive signal that the light modulation project is indicated, by-pass cock is controlled, thereby make the corresponding voltage that comprises chopping voltage of centralized driving module output light modulation project through pulse drive signal; Carry out the indication of light modulation project through said chopping voltage to light source module, so that the light source drive in the light source module is to the color of dimming light sources project indication and/or the control of brightness; And, receive the electric energy that comprises chopping voltage by light source drive in light source module one side, detect the preset characteristic parameter of said chopping voltage; Value and/or span according to said characteristic parameter are confirmed the light modulation project; Confirm the light source control strategy according to said light modulation project; And then light source carried out the color of said light source control strategy indication and/or the control of brightness; Thereby light source drive can be discerned the light modulation project through chopping voltage, and then realizes for the color of light source and/or the control of brightness.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.
Claims (2)
1. a light source control device is characterized in that, comprising:
Reception comprise chopping voltage electric energy, detect the detecting unit of the preset characteristic parameter of said chopping voltage;
According to second definite unit that the value and/or the span of said characteristic parameter are confirmed the light modulation project, this second definite unit is connected with said detecting unit; Said light modulation project is made up of the value and/or the span of at least one characteristic parameter of pulse drive signal;
Confirm the light source control strategy and then light source carried out the color of said light source control strategy indication and/or the control unit of brilliance control that according to said light modulation project this control unit and said second confirms that the unit is connected.
2. device according to claim 1 is characterized in that, said control unit comprises:
Confirm light source control strategy stator unit really according to said light modulation project;
According to the generation subelement of the target current value generation corresponding control signal that comprises in the light source control strategy, this generates subelement and is connected with said definite subelement;
Thereby with control signal import light source controller in case light source controller according to said control signal carry out self to the adjustment of each light source output current, make the corresponding target current value of its output realize transmission subelement for the adjusting of light source colour and/or brightness, this transmission subelement is connected with said generation subelement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202653057U CN202178895U (en) | 2010-10-28 | 2010-10-28 | Light source control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202653057U CN202178895U (en) | 2010-10-28 | 2010-10-28 | Light source control device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205821011U Division CN201967185U (en) | 2010-10-28 | 2010-10-28 | Light source control device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178895U true CN202178895U (en) | 2012-03-28 |
Family
ID=45868756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202653057U Expired - Lifetime CN202178895U (en) | 2010-10-28 | 2010-10-28 | Light source control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458014A (en) * | 2010-10-28 | 2012-05-16 | 英飞特电子（杭州）有限公司 | Light source control method, device and system |
-
2010
- 2010-10-28 CN CN2011202653057U patent/CN202178895U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458014A (en) * | 2010-10-28 | 2012-05-16 | 英飞特电子（杭州）有限公司 | Light source control method, device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102458014B (en) | Light source control method, device and system | |
| CN102548101B (en) | LED dimming system | |
| US8669721B2 (en) | Solid state light source based lighting device and lighting system | |
| CN102300355B (en) | Light emitting diode (LED) dimming system | |
| US8339053B2 (en) | LED dimming apparatus | |
| US8593079B2 (en) | LED dimming driver | |
| US8044600B2 (en) | Brightness-adjustable LED driving circuit | |
| CN103763842B (en) | LED lamp | |
| EP2676528B1 (en) | A dimmable led driver and a method for controlling the same | |
| CN202353859U (en) | Controllable silicon light regulation device and illuminating system | |
| CN108337764A (en) | Constant pressure exports AC phase Dimmable LED drivers | |
| CN103379708B (en) | Lighting device capable of adjusting brightness and brightness adjusting method thereof | |
| CN102238774A (en) | Method and device for acquiring conduction angle and light emitting diode (LED) driving method and device | |
| US8558482B2 (en) | Programmable current PWM dimming controller | |
| CN102238773A (en) | LED (light-emitting diode) drive method and system | |
| CN107046746B (en) | A kind of LED light adjusting control circuit | |
| CN107426879B (en) | Voltage dimming LED control system based on PWM | |
| GB2498371A (en) | Lamp controller | |
| US20120176057A1 (en) | Control apparatus for led diodes | |
| CN103561528A (en) | LED power source platform capable of integrating various dimming ways | |
| WO2013177757A1 (en) | Led light adjustment driver and led light source system | |
| CN205726501U (en) | A kind of LED adjusting control circuit | |
| US20170171928A1 (en) | Lighting apparatus and system having electrical insulation structure between dimmer and driver | |
| CN201967185U (en) | Light source control device and system | |
| CN201742607U (en) | LED dimming system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INVENTRONICS (HANGZHOU) CO., LTD. Free format text: FORMER NAME: INVENTRONICS (HANGZHOU) INC. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 310053 Binjiang District Dongxin Road No. 66 East communication B block 309 Patentee after: LED One (Hangzhou) Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310053 Binjiang District Dongxin Road No. 66 East communication B block 309 Patentee before: Inventronics (Hangzhou) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
|
| CX01 | Expiry of patent term |