CN103068094A - Chopping dimmer, chopping dimming system and driver of chopping dimming system - Google Patents
Chopping dimmer, chopping dimming system and driver of chopping dimming system Download PDFInfo
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Abstract
The invention discloses a chopping dimmer, a chopping dimming system and a driver of the chopping dimming system. The chopping dimmer at least comprises a chopping switch connected between an input end of the chopping dimmer and an output end of the chopping dimmer in a series mode and a signal sending controller, wherein the signal sending controller is used for receiving a regulatory signal and acquiring a corresponding coded signal of the regulatory signal according to a switching rule and a driving signal of the coded signal corresponding to the chopping switch to obtain a set of target dimming voltage sequences including the regulatory signal. According to the chopping dimmer, the chopping dimming system and the driver of the chopping dimming system, different regulatory signals sending without the need for changing the size of a chopping phase angle can be achieved, the influence of voltage leap to a power factor is reduced, and electromagnetic interference caused by the voltage leap is lowered.
Description
Technical field
The present invention relates to a kind of copped wave dimmer, copped wave light adjusting system and driver thereof, particularly relate to a kind of input side power factor and little copped wave dimmer, copped wave light adjusting system and driver thereof of electromagnetic interference of reducing.
Background technology
At lighting field, brightness or color that a lot of occasions need to be regulated light source, this just requires illuminator to have the light source regulatory function.
Comparatively the technology of adjusting light source commonly used is the copped wave light regulating technology at present, is illustrated in figure 1 as the circuit implementation structure of a kind of light source adjuster in the prior art, and this light source adjuster comprises: by-pass cock, i.e. bidirectional thyristor S; And the circuits for triggering that consisted of by bidirectional trigger diode D1, adjustable resistance R1 and the first capacitor C 1, this light source adjuster input is communication power supply, output voltage V 1 to driver to the rear class light source.
In Fig. 1, variation by adjustable resistance R1 resistance causes the variation in the charging interval of the first capacitor C 1, and then variation that should the charging interval causes the variation of the bidirectional thyristor S angle of flow, be embodied on the output voltage V 1 of light source adjuster, then form such as the chopping voltages such as forward position formula chopping voltage shown in Figure 2.In half ac cycle of chopping voltage, corresponding phase angle of zero current duration is the copped wave phase angle.This chopping voltage is exported to the driver of rear class, driver is by the detection to copped wave phase angle size in this chopping voltage, control its output current, change brightness or the color of driver rear class light source, like this, the resistance that outside adjustment interface is regulated adjustable resistance R1 by knob, thus regulate chopping switch conducting or the shutoff moment, and then the copped wave phase angle of the chopping voltage signal of adjusting light source adjuster transmission, light source is carried out the adjusting of brightness by driver.
Yet above-mentioned chopping way to alternating current, the chopping switch long-term work is under the copped wave pattern, the variation of input voltage can affect the size of copped wave angle, thereby impact transmits the accuracy of signal to the rear class driver, the conditioning signal that driver receives directly has influence on output current, be the brightness of light source, and, the long-term copped wave of chopping switch in the dimmer, can cause the power factor of dimmer input side lower, reduce the service efficiency of electric energy, and the sudden change of chopping voltage can cause larger electromagnetic interference.
Summary of the invention
The various shortcoming that exists for overcoming above-mentioned prior art, main purpose of the present invention is to provide a kind of copped wave dimmer, copped wave light adjusting system and driver thereof, it can reach the purpose that the size that need not change the copped wave phase angle just can realize that dim signal transmits, simultaneously can reduce voltage jump to the impact of power factor, and greatly reduce the electromagnetic interference that voltage jump causes.
For reaching above-mentioned and other purpose, the invention provides a kind of copped wave dimmer, be applied in the copped wave light adjusting system, this copped wave dimmer comprises at least:
Chopping switch is connected between the input and output of this copped wave dimmer; And
One transmitting signal controller, this transmitting signal controller is used for receiving a conditioning signal, obtain code signal corresponding to this conditioning signal according to a transformation rule, and according to a coding rule, obtain this code signal to driving signal that should chopping switch, thereby obtain including one group of target dimmer voltage sequence of this conditioning signal, this transmitting signal controller is according to this coding rule, exchange in the positive and negative half period at one, export the operating state of this this chopping switch of driving signal controlling, make the dimmer voltage of the corresponding output of this copped wave dimmer as a coding subelement, the copped wave phase angle is fixed and when not being 0 copped wave state as the first operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer is as the first subelement of encoding, when the copped wave phase angle was 0 conducting state as the second operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer was as the second subelement of encoding.
Further, this code signal comprises data bit 0 and data bit 1, wherein, this data bit 0 is arranged in order the first group of dimmer voltage that forms according to this coding rule correspondence by n1 the first coding subelement and/or the second coding subelement, this data bit 1 according to this coding rule correspondence by n2 the first coding subelement and or the second coding subelement be arranged in order the second group of dimmer voltage that forms, wherein n1 and n2 are all more than or equal to 1.
Further, this first group of dimmer voltage and this second group of dimmer voltage form this target dimmer voltage sequence according to data bit 0 and data bit 1 putting in order of this code signal.
Further, this coding rule adds start bit and stop bit before and after this code signal, and correspondence obtains having added start bit dimmer voltage and stop bit dimmer voltage before and after target dimmer voltage sequence.
Further, this stop bit dimmer voltage is according to this coding rule, be arranged in order by n3 coding subelement to form, wherein, n1+n2 〉=3, n1+n2+n3 〉=5.
Further, this start bit dimmer voltage is according to this coding rule, is arranged in order by n4 coding subelement to form, and it includes the first coding subelement at least.
Further, in this first coding subelement, fixedly the copped wave phase angle is less than or equal to 30 degree.
Further, the data bit 0 of this code signal is according to this coding rule, the corresponding first group of dimmer voltage that is formed by this first coding subelement, data bit 1 is according to this coding rule, corresponding is second group of dimmer voltage that this second coding subelement and this first coding subelement form by two coding subelements successively, this stop bit is according to coding rule, corresponding this stop bit dimmer voltage that is comprised of two these continuous the second coding subelements at least.
Further, this transmitting signal controller also receives cycle, the zero passage moment or the peak value moment of an ac voltage signal to detect ac voltage signal, and it is for the initial time of the driving signal that calculates this chopping switch and the duration of high-low level.
Further, between front and back two groups of target dimmer voltage sequence corresponding to former and later two conditioning signals, this transmitting signal controller is controlled this chopping switch and is operated in conducting state.
For reaching above-mentioned and other purpose, the present invention also provides a kind of driver, be applied in the copped wave light adjusting system, its input receiving target dimmer voltage sequence, this driver comprises that at least one receives signal controller, and this receives signal controller for detection of this target dimmer voltage sequence, searches code signal corresponding to this target dimmer voltage sequence according to this coding rule, and according to this transformation rule, the main circuit of controlling this driver is exported the electric current of corresponding code signal.
Further, this reception signal controller is differentiated controlled plant to this target dimmer voltage sequence that receives.
Further, the mode of this reception signal controller differentiation controlled plant comprises: difference or the length according to code signal corresponding to this target dimmer voltage sequence is differentiated, is differentiated, differentiates and differentiate according to the chopping way difference in the first coding subelement according to the fixedly copped wave phase angle difference in the first coding subelement according to the difference of start bit dimmer voltage or stop bit dimmer voltage.
Further, after this reception signal controller is determined controlled plant, the code signal that this target dimmer voltage sequence correspondence is obtained, corresponding transformation rule inquiry draws the size of current of the light source of the total current size of light source or various different colours according to controlled plant.
For reaching above-mentioned and other purpose, the invention provides a kind of copped wave light adjusting system, comprise at least:
The copped wave dimmer, input connects alternating voltage, it comprises input and the chopping switch between the output and a transmitting signal controller that is connected on this copped wave dimmer, this transmitting signal controller receives a conditioning signal, obtain code signal corresponding to this conditioning signal according to a transformation rule, and according to a coding rule, obtain this code signal to driving signal that should chopping switch, thereby obtain including one group of target dimmer voltage sequence output of this conditioning signal, this transmitting signal controller is according to this coding rule, exchange in the positive and negative half period at one, export the operating state of this this chopping switch of driving signal controlling, make the dimmer voltage of the corresponding output of this copped wave dimmer as a coding subelement, the copped wave phase angle is fixed and when not being 0 copped wave state as the first operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer is as the first subelement of encoding, when the copped wave phase angle was 0 conducting state as the second operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer was as the second subelement of encoding; And
Driver, be connected in the output of this copped wave dimmer, it comprises that at least one receives signal controller, this receives signal controller for detection of this target dimmer voltage sequence, search code signal corresponding to this target dimmer voltage sequence according to this coding rule, and according to this transformation rule, the main circuit output of controlling this driver is to electric current that should code signal.
Compared with prior art, the two states that a kind of copped wave dimmer of the present invention, copped wave light adjusting system and driver thereof utilize chopping switch may occur in half ac cycle represents the adjusting information that the dimmer output voltage comprises, and receive the output voltage of dimmer and decode the adjusting information that wherein comprises by the rear class driver, the size of regulating its output current according to this adjusting information, on the one hand so that the present invention's dimmer reduces greatly on the impact of AC side Power Factor, the electromagnetic interference that causes of chopping voltage also reduces greatly simultaneously; On the other hand, coding rule in the light regulating technology that the present invention relates to is standardized as the light modulation agreement of transmitting adjusting information between dimmer and driver easily, and the content of this light modulation agreement is simple, comprises that setting dimmer voltage is copped wave state or conducting state at the state that exchanges in the half period arbitrarily.
Description of drawings
Fig. 1 is the circuit implementation structure of a kind of light source adjuster in the prior art;
Fig. 2 is the output voltage sequential chart of Fig. 1;
Fig. 3 is the electrical block diagram of the present invention's copped wave dimmer;
Fig. 4 is the electrical block diagram of the present invention's copped wave light adjusting system;
Fig. 5 is the corresponding relation schematic diagram of the present invention's conditioning signal, code signal and dimmer voltage sequence;
Fig. 6 is one of copped wave light adjusting system of the present invention dimmer voltage sequence schematic diagram.
Embodiment
Below by specific instantiation and accompanying drawings embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by content disclosed in the present specification.The present invention also can be implemented or be used by other different instantiation, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
Define among the present invention: chopping voltage in half ac cycle, has the voltage of lasting zero level; Dimmer voltage, in half ac cycle, alternating voltage is through the voltage behind the dimmer; The copped wave phase angle, in dimmer voltage, the zero level duration is at AC power corresponding phase angle in the cycle.
Fig. 3 is the electrical block diagram of the present invention's copped wave dimmer.As shown in Figure 3, the present invention's copped wave dimmer 301 is applied in the copped wave light adjusting system, and copped wave dimmer 301 comprises at least: be connected on the chopping switch S between copped wave dimmer 301 inputs and the output; And the transmitting signal controller 302 that is used for control chopping switch S break-make.This dimmer input connects alternating voltage Vin, V1 is to driver for output output dimmer voltage, transmitting signal controller 302 inputs receive conditioning signal, this conditioning signal is the signal that the external control device sends, such as knob, button, button, the signal that remote control or other man-machine interfaces etc. are sent, the external control device that produces conditioning signal is regulated light source for the user, at the default transformation rule of these transmitting signal controller 302 bases, inquiry obtains code signal corresponding to this conditioning signal, and according to default coding rule, inquiry obtains the driving signal of chopping switch S corresponding to this code signal, this drives signal controlling chopping switch S at the on off operating mode of alternating current positive and negative half period, thereby obtains including one group of target dimmer voltage sequence of conditioning signal; Simultaneously, this transmitting signal controller 302 also receives ac voltage signal, with cycle, the zero passage moment or the peak value moment of detecting ac voltage signal, for the initial time of the driving signal that calculates chopping switch S and the duration of high-low level.
Need to prove, transmitting the light source conditioning signal among the present invention refers to transmit the signal of regulating light-source brightness and/or transmits the signal of regulating light source colour, when transmitting the signal of regulating light-source brightness, the different different light-source brightness grades of conditioning signal representative, when transmitting the signal of regulating light source colour, the different different light source colour classifications of conditioning signal representative.
Described default transformation rule is the corresponding relation between this conditioning signal and the code signal.
More particularly, according to described default coding rule, one exchanges in the positive and negative half period, transmitting signal controller 302 obtains to drive the operating state of signal controlling chopping switch S according to code signal, make the dimmer voltage of copped wave dimmer 301 corresponding outputs as a coding subelement, wherein, the copped wave phase angle is fixed and when not being 0 copped wave state as the first operating state of chopping switch S, the dimmer voltage V1 of the present invention's copped wave dimmer 301 corresponding outputs are as the first coding subelement b1; When the copped wave phase angle was 0 conducting state as the second operating state of chopping switch S, the dimmer voltage of the present invention's copped wave dimmer 301 corresponding outputs were as the second coding subelement b2.Described target dimmer voltage sequence comprises the first coding subelement and/or the second coding subelement.
The present invention's code signal comprises data bit 0 and data bit 1, wherein data bit 0 is arranged in order the first group of dimmer voltage that forms according to default coding rule correspondence by the individual coding subelement of n1 (n1 〉=1), data bit 1 is arranged in order the second group of dimmer voltage that forms according to default coding rule correspondence by the individual coding subelement of n2 (n2 〉=1), and first group of dimmer voltage and second group of dimmer voltage are different.First group of dimmer voltage and second group of dimmer voltage form one group of target dimmer voltage sequence according to data bit 0 and data bit 1 putting in order of code signal, and as seen, coding rule essence is the corresponding relation between code signal and the target dimmer voltage sequence.
Between front and back two groups of target dimmer voltage sequence corresponding to former and later two conditioning signals, transmitting signal controller 302 control chopping switch S are operated in conducting state.
At this, it should be noted that, the kind that forms n1 of first group of dimmer voltage coding subelement is unrestricted, namely first group of dimmer voltage can be only to be comprised of n1 the first coding subelement, also can be only to be formed by n1 the second coding subelement, can also be formed by first, second kind coding subelement simultaneously, and the number sum of first, second kind coding subelement is n1; Same, the kind of n2 the subelement of encoding that forms second group of dimmer voltage is also unrestricted.
Such as, data bit 0 in the code signal can be according to coding rule, the corresponding first group of dimmer voltage that is formed by (n1=1) the first coding subelement b1, data bit 1 in the code signal is according to coding rule, the corresponding second group of dimmer voltage that is comprised of (n2=1) the second coding subelement b2; Perhaps, data bit 0 in the code signal is according to coding rule, the corresponding first group of dimmer voltage that is formed by (n1=1) the second coding subelement b2, data bit 1 in the code signal is according to described coding rule, the corresponding second group of dimmer voltage that is comprised of (n2=1) the first coding subelement b1.
At this, n1+n2 〉=3 preferably, namely the coding subelement number of the coding subelement number of data bit 0 correspondence and data bit 1 correspondence is more than or equal to 3.
It should be noted that form the in tandem order difference of each coding subelement of first group of dimmer voltage, first group of dimmer voltage will be different; Same, the in tandem order of each coding subelement that forms second group of dimmer voltage is different, and second group of dimmer voltage will be different.
The number of data bit 0 (its number is designated as a1), data bit 1 (its number is designated as a2) is relevant with n1, n2 in the length (being designated as c) of target dimmer voltage sequence and the code signal, c=a1*n1+a2*n2, namely target dimmer voltage sequence comprises c dimmer voltage.
The state of dimmer voltage is operated in the copped wave state by the Determines of current chopping switch S such as current chopping switch, and then the state of dimmer voltage just is the copped wave state, and dimmer voltage is chopping voltage; Be operated in conducting state such as current chopping switch, then the state of dimmer voltage is conducting state just, and this moment, dimmer voltage was an alternating voltage that exchanges positive and negative half period.
Better, be two groups of target dimmer voltage sequences before and after distinguishing, coding rule adds start bit and stop bit before and after also being defined in the code signal that any one described preset length is a, and correspondence obtains having added start bit dimmer voltage and stop bit dimmer voltage before and after target dimmer voltage sequence.The copped wave phase angle size of start bit dimmer voltage and the copped wave phase angle size of stop bit dimmer voltage are preseted by coding rule.Need to prove that the copped wave phase angle of start bit dimmer voltage and stop bit dimmer voltage does not change with the variation of conditioning signal, be fixing phase angle signal.
In a preferred embodiment of the present invention, the copped wave phase angle size of start bit dimmer voltage is different from the copped wave phase angle size in the first coding subelement; The copped wave phase angle size of stop bit dimmer voltage is different from the copped wave phase angle size in the first coding subelement.Such as, the copped wave phase angle of start bit dimmer voltage and stop bit dimmer voltage all is 60 °, copped wave phase angle in the first coding subelement is 20 °, when the present invention's copped wave dimmer output copped wave phase angle is 60 ° dimmer voltage, what show next transmission is one group of target dimmer voltage sequence, when the present invention's dimmer when again to export the copped wave phase angle be 60 ° dimmer voltage, show that this group target dimmer voltage sequence transmission finishes.
In another preferred embodiment of the present invention, the stop bit dimmer voltage is according to coding rule, is arranged in order by the individual coding subelement of n3 (n3 〉=1) to form n1+n2 〉=3, n1+n2+n3 〉=5; The start bit dimmer voltage is according to coding rule, is arranged in order by the individual coding subelement of n4 (n4 〉=1) to form, and it includes the first coding subelement b1 at least.Better, in the first coding subelement, coding rule set its fixedly the copped wave phase angle less than or equal to 30 degree.Because fixedly the copped wave phase angle is less, voltage jump is less, has reduced voltage jump to the impact of power factor and has greatly reduced the electromagnetic interference that voltage jump causes.When the present invention's light regulating technology was applied to dimmer with the load of Switching Power Supply class, fixedly the copped wave phase angle was less, has reduced the loss on the impedance matching circuit.
As another example of the present invention, data bit 0 in the code signal also can be according to coding rule, the corresponding first group of dimmer voltage that is formed by the first coding subelement (b1), data bit 1 is according to coding rule, corresponding is second group of dimmer voltage that the second coding subelement (b2) and the first coding subelement (b1) form by two coding subelements successively, stop bit is according to coding rule, the corresponding stop bit dimmer voltage that is comprised of two continuous the second coding subelements (b2b2) at least.In such cases, the state of stop bit dimmer voltage is conducting state.
Fig. 4 is the circuit structure diagram of preferred embodiment of the present invention's copped wave light adjusting system.The present invention's copped wave light adjusting system comprises copped wave dimmer 301 and driver 303, the output of copped wave dimmer 301 connects driver 303, the output of driver 303 is connected with light source load, and this driver 303 comprises the reception signal controller 304 of corresponding transmitting signal controller 302.
Receive signal controller 304, target dimmer voltage sequence for detection of driver 303 inputs, according to transmitting signal controller 302 in same coding rule, find code signal corresponding to this target dimmer voltage sequence, receive signal controller 304 according to transformation rule by this, the main circuit in the control driver 303 makes its output to electric current that should code signal.Described target dimmer voltage sequence comprises the first coding subelement and/or the second coding subelement.
See also Fig. 5, here said transformation rule is consistent with the transformation rule in the transmitting signal controller 302, be the corresponding relation between conditioning signal (or light source load electric current) and the code signal, coding rule is the corresponding relation between code signal and the target dimmer voltage sequence.In transmitting signal controller 302, the cataloged procedure of dim signal is for from left to right: it obtains code signal from the conditioning signal that man-machine interface receives through the transformation rule correspondence, and encoded regular correspondence obtains target dimmer voltage sequence again.And in receiving signal controller 304, the decode procedure of dim signal is for to turn left from the right side: the encoded regular correspondence of target dimmer voltage sequence that it receives obtains code signal, obtains the light source load electric current through the transformation rule correspondence again.Therefore, target dimmer voltage sequence is for the carrier that transmits dim signal between dimmer and driver.
Pass between conditioning signal and the light source load electric current is, adjusting target according to light-source brightness, the user acts on the man-machine interface of dimmer, make it export a conditioning signal to transmitting signal controller, make the driver output stream reach a certain size through the electric current of light source load, the brightness of light source namely transfers to object brightness.
Below the present invention's operation principle will be described by a concrete example:
Suppose that the light adjusting system that includes dimmer and driver can realize 7 grades of light modulations, the higher brighter display that shows the LED load of progression, coding rule specified data position 0 corresponding dimmer voltage, its state is the copped wave state, data bit 1 corresponding two dimmer voltage, and state is followed successively by conducting state and copped wave state, the corresponding dimmer voltage of start bit, its state is the copped wave state, corresponding two dimmer voltage of stop bit, and state all is conducting state.Now the brightness of LED load will be transferred to the 5th grade, the cataloged procedure of this dim signal is as follows:
Wish realizes 7 grades of light modulations, and the length that transformation rule will be preset code signal is made as 3, stipulates that 3 represented bit values of code signal are larger, and the brightness progression of LED load is higher;
Suppose in the transmitting signal controller 302, detect the conditioning signal of the 5th grade of brightness of expression, obtaining its corresponding code signal according to transformation rule inquiry is 101, according to above-mentioned coding rule, 101 code signal correspondences obtain one group of target dimmer voltage sequence (referring to " data bit " part among Fig. 6) that comprises five dimmer voltage, state is followed successively by conducting state, the copped wave state, the copped wave state, conducting state, the copped wave state, according to coding rule, before 101 code signals, add start bit, add stop bit after 101 code signals, correspondence obtains one group of dimmer voltage sequence V1 as shown in Figure 7.
The decode procedure of this dim signal is as follows:
Receive in the signal controller 304, receive one group of dimmer voltage sequence V1 as shown in Figure 7, when the state of the dimmer voltage that receives (state that refers to chopping switch this moment) during for the copped wave state, show that target dimmer voltage sequence V1 begins transmission, until when receiving continuously the state of two dimmer voltage and being conducting state, show that this group target dimmer voltage sequence transmission finishes, each dimmer voltage in the target dimmer voltage sequence that receives during this time needs to decode its corresponding code signal according to coding rule one by one, this code signal is through the query conversion rule, reduce the brightness degree signal of described code signal representative, control driver main circuit is exported the electric current of corresponding size.
The mode of above-mentioned transmission light source conditioning signal, narrate its operation principle to regulate light-source brightness as example, in fact, the light source conditioning signal of transmission also can refer to transmit the signal of regulating light source colour, i.e. the occasion that the mode of light signal also is applicable to regulate light source colour is regulated in above-mentioned transmission.
No matter be to regulate the occasion of light-source brightness or the occasion of regulating light source colour, the working method of the reception signal controller of transmitting signal controller and driver is identical.When the present invention was applied to regulate light-source brightness, described conditioning signal represented brightness degree; When the present invention is applied to regulate light source colour, described conditioning signal representative color classification.
Therefore, comprise the present invention's of dimmer and driver light adjusting system, the function that can realize regulating light-source brightness and/or regulate light source colour.When same light adjusting system, should realize regulating light-source brightness, when realizing regulating the light source colour function again, receive the target dimmer voltage sequence that 304 of signal controllers need to receive driver, differentiate controlled plant (brightness adjusting or adjustable colors) and definite regulating degree (brightness degree or colour type).
Differentiate controlled plant following several mode arranged:
The 1st kind, differentiate according to the difference of code signal corresponding to target dimmer voltage sequence.Such as, preset length is 4 code signal, data bit 0 wherein and data bit 1 permutation and combination at most can corresponding 16 kinds of different conditioning signals, get wherein 8 kind 0/1 permutation and combination corresponding light source brightness regulated signal, any one corresponding light-source brightness grade in 8 kind 0/1 the permutation and combination; Remaining 8 kind 0/1 permutation and combination corresponding light source color adaptation signal, any one corresponding a kind of light source colour in remaining 8 kind 0/1 the permutation and combination.
The 2nd kind, according to target dimmer voltage sequence, the length of corresponding code signal is differentiated.Such as, the preset length of code signal is 3 corresponding light-source brightness of regulating, the preset length of code signal is 5 corresponding light source colours of regulating.
The 3rd kind, differentiate according to the difference of start bit dimmer voltage.The difference that specifically can be divided into the copped wave phase angle, the difference of chopping way, the permutation and combination of the coding subelement of composition start bit dimmer voltage is different.Described chopping way is divided into: forward position copped wave, rear along copped wave, front and back along copped wave.Now be exemplified below respectively: according to the difference of copped wave phase angle, when regulating light-source brightness, the copped wave phase angle of start bit dimmer voltage is set to 30 °; When regulating light source colour, the copped wave phase angle of start bit dimmer voltage is set to 50 °.According to the difference of chopping way, when regulating light-source brightness, the chopping way of start bit dimmer voltage is set to forward position copped wave; When regulating light source colour, the chopping way of start bit dimmer voltage is set to rear along copped wave.Different according to the coding subelement permutation and combination that forms the start bit dimmer voltage, when regulating light-source brightness, the start bit dimmer voltage comprises a dimmer voltage, and its state is the copped wave state; When regulating light source colour, the start bit dimmer voltage comprises two dimmer voltage, and its state is followed successively by copped wave state and conducting state.
The 4th kind, differentiate according to the difference of stop bit dimmer voltage.Concrete reaching for example with the 3rd kind.
The 5th kind, differentiate according to the fixedly copped wave phase angle difference in the first coding subelement.Such as, when regulating light-source brightness, the fixedly copped wave phase angle in the first coding subelement is set to 30 °; When regulating light source colour, the fixedly copped wave phase angle in the first coding subelement is set to 50 °.
The 6th kind, differentiate according to the chopping way difference in the first coding subelement.Described chopping way is divided into: forward position copped wave, rear along copped wave, front and back along copped wave.Such as, when regulating light-source brightness, the chopping way in the first coding subelement is set to forward position copped wave; When regulating light source colour, the chopping way in the first coding subelement is set to rear along copped wave.
After object to be regulated is determined, receive the code signal that signal controller 304 obtains target dimmer voltage sequence correspondence, the size of current that corresponding transformation rule inquiry draws the light source of the total current size of light source or various different colours according to controlled plant is determined described regulating degree.
Need to prove that the versicolor light source that the present invention mentions also comprises cold white light source and warm white light source except the light source that comprises the color such as red, green, blue.Described light source can be led light source.
In sum, a kind of copped wave dimmer of the present invention, the two states that copped wave light adjusting system and driver thereof utilize chopping switch may occur in half ac cycle: conducting state (the copped wave phase angle is 0), copped wave state (the copped wave phase angle is not 0 and fixing) represents the adjusting information that the dimmer output voltage comprises, because the size that transmits different conditioning signals and do not need to change the copped wave phase angle just can realize the transmission of dim signal, and the copped wave phase angle is set fixedly hour, chopping voltage sudden change under this kind state is less, reduce the impact of voltage jump on power factor, and greatly reduced the electromagnetic interference that voltage jump causes.When the present invention was applied to copped wave dimmer with the load of Switching Power Supply class, fixedly the copped wave phase angle was less of less than or equal to 30 °, has reduced the loss on the impedance matching circuit.
Moreover, the present invention's copped wave dimmer, copped wave light adjusting system and driver thereof, because chopping switch is operated in conducting state between two groups of target dimmer voltage sequences, even in target dimmer voltage sequence, the state of some dimmer voltage also is conducting state, therefore the copped wave state of chopping switch only appeared in the very short time, dimmer is not long-term output chopping voltage, transmit like this mode of light source conditioning signal, the impact that brings for being changed by input voltage is very little, thereby has improved the accuracy that transmits signal to the rear class driver; And be conducive to reduce the impact of the power factor of dimmer input side, improve the service efficiency of electric energy, electromagnetic interference is little.
At last, coding rule in the light regulating technology that the present invention relates to is standardized as the light modulation agreement of transmitting adjusting information between dimmer and driver easily, and the content of this light modulation agreement is simple, comprises that setting dimmer voltage is copped wave state or conducting state at the state that exchanges in the half period arbitrarily.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not is used for restriction the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and above-described embodiment is modified and changed.Therefore, the scope of the present invention should be listed such as claims.
Claims (15)
1. a copped wave dimmer is applied in the copped wave light adjusting system, and this copped wave dimmer comprises at least:
Chopping switch is connected between the input and output of this copped wave dimmer; And
One transmitting signal controller, this transmitting signal controller is used for receiving a conditioning signal, obtain code signal corresponding to this conditioning signal according to a transformation rule, and according to a coding rule, obtain this code signal to driving signal that should chopping switch, thereby obtain including one group of target dimmer voltage sequence of this conditioning signal, this transmitting signal controller is according to this coding rule, exchange in the positive and negative half period at one, export the operating state of this this chopping switch of driving signal controlling, make the dimmer voltage of the corresponding output of this copped wave dimmer as a coding subelement, the copped wave phase angle is fixed and when not being 0 copped wave state as the first operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer is as the first subelement of encoding, when the copped wave phase angle was 0 conducting state as the second operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer was as the second subelement of encoding.
2. copped wave dimmer as claimed in claim 1, it is characterized in that: this code signal comprises data bit 0 and data bit 1, wherein, this data bit 0 is arranged in order the first group of dimmer voltage that forms according to this coding rule correspondence by n1 the first coding subelement and/or the second coding subelement, this data bit 1 is arranged in order the second group of dimmer voltage that forms according to this coding rule correspondence by n2 the first coding subelement and/or the second coding subelement, and wherein n1 and n2 are all more than or equal to 1.
3. copped wave dimmer as claimed in claim 2 is characterized in that: this first group of dimmer voltage and this second group of dimmer voltage form this target dimmer voltage sequence according to data bit 0 and data bit 1 putting in order of this code signal.
4. such as the described copped wave dimmer of any one in the claim 2 to 3, it is characterized in that: this coding rule adds start bit and stop bit before and after this code signal, and correspondence obtains having added start bit dimmer voltage and stop bit dimmer voltage before and after target dimmer voltage sequence.
5. copped wave dimmer as claimed in claim 4 is characterized in that: this stop bit dimmer voltage is according to this coding rule, be arranged in order by n3 coding subelement to form, wherein, n1+n2 〉=3, n1+n2+n3 〉=5.
6. copped wave dimmer as claimed in claim 4 is characterized in that: this start bit dimmer voltage is according to this coding rule, is arranged in order by n4 coding subelement to form, and it includes the first coding subelement at least.
7. copped wave dimmer as claimed in claim 1 is characterized in that: in this first coding subelement, fixedly the copped wave phase angle is spent less than or equal to 30.
8. copped wave dimmer as claimed in claim 4, it is characterized in that: the data bit 0 of this code signal is according to this coding rule, the corresponding first group of dimmer voltage that is formed by this first coding subelement, data bit 1 is according to this coding rule, corresponding is second group of dimmer voltage that this second coding subelement and this first coding subelement form by two coding subelements successively, this stop bit is according to coding rule, corresponding this stop bit dimmer voltage that is comprised of two these continuous the second coding subelements at least.
9. copped wave dimmer as claimed in claim 1, it is characterized in that: this transmitting signal controller also receives cycle, the zero passage moment or the peak value moment of an ac voltage signal to detect ac voltage signal, and it is for the initial time of the driving signal that calculates this chopping switch and the duration of high-low level.
10. copped wave dimmer as claimed in claim 1 is characterized in that: between front and back two groups of target dimmer voltage sequence corresponding to former and later two conditioning signals, this transmitting signal controller is controlled this chopping switch and is operated in conducting state.
11. driver, be applied in the copped wave light adjusting system, its input receiving target dimmer voltage sequence, this driver comprises that at least one receives signal controller, this receives signal controller for detection of this target dimmer voltage sequence, search code signal corresponding to this target dimmer voltage sequence according to this coding rule, and according to this transformation rule, the main circuit of controlling this driver is exported the electric current of corresponding code signal, and this coding rule is each the described coding rule in the claim 2 to 10.
12. driver as claimed in claim 11 is characterized in that: this reception signal controller is differentiated controlled plant to this target dimmer voltage sequence that receives.
13. driver as claimed in claim 12 is characterized in that: the mode that this reception signal controller is differentiated controlled plant comprises: difference or the length according to code signal corresponding to this target dimmer voltage sequence is differentiated, is differentiated, differentiates and differentiate according to the chopping way difference in the first coding subelement according to the fixedly copped wave phase angle difference in the first coding subelement according to the difference of start bit dimmer voltage or stop bit dimmer voltage.
14. driver as claimed in claim 13, it is characterized in that: after this reception signal controller is determined controlled plant, the code signal that this target dimmer voltage sequence correspondence is obtained, corresponding transformation rule inquiry draws the size of current of the light source of the total current size of light source or various different colours according to controlled plant.
15. a copped wave light adjusting system comprises at least:
The copped wave dimmer, input connects alternating voltage, it comprises input and the chopping switch between the output and a transmitting signal controller that is connected on this copped wave dimmer, this transmitting signal controller receives a conditioning signal, obtain code signal corresponding to this conditioning signal according to a transformation rule, and according to a coding rule, obtain this code signal to driving signal that should chopping switch, thereby obtain including one group of target dimmer voltage sequence output of this conditioning signal, this transmitting signal controller is according to this coding rule, exchange in the positive and negative half period at one, export the operating state of this this chopping switch of driving signal controlling, make the dimmer voltage of the corresponding output of this copped wave dimmer as a coding subelement, the copped wave phase angle is fixed and when not being 0 copped wave state as the first operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer is as the first subelement of encoding, when the copped wave phase angle was 0 conducting state as the second operating state of chopping switch, the dimmer voltage of the corresponding output of this copped wave dimmer was as the second subelement of encoding; And
Driver, be connected in the output of this copped wave dimmer, it comprises that at least one receives signal controller, this receives signal controller for detection of this target dimmer voltage sequence, search code signal corresponding to this target dimmer voltage sequence according to this coding rule, and according to this transformation rule, the main circuit output of controlling this driver is to electric current that should code signal.
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| CN201110321234.2A CN103068094B (en) | 2011-10-20 | 2011-10-20 | Chopping dimmer, chopping dimming system and driver of chopping dimming system |
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| CN114567951A (en) * | 2022-03-10 | 2022-05-31 | 四维生态科技（杭州）有限公司 | Method and device for adjusting lighting system and computer storage medium |
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