CN109769320A - A control circuit and control device for adjusting light parameters with two lines - Google Patents
A control circuit and control device for adjusting light parameters with two lines Download PDFInfo
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- CN109769320A CN109769320A CN201910146881.0A CN201910146881A CN109769320A CN 109769320 A CN109769320 A CN 109769320A CN 201910146881 A CN201910146881 A CN 201910146881A CN 109769320 A CN109769320 A CN 109769320A
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Abstract
The invention discloses control circuits and control device that a kind of two-wire adjusts lighting programmers, it is connect with different first LED light string of colour temperature and the second LED light string, including signal output module, drive conversion module and conducting control module, signal output module is used to export corresponding dimming control signal according to current light modulation parameter to driving conversion module, driving conversion module is used to control the on state of the conducting control module according to the duty ratio of the dimming control signal, control module, which is connected, has the first output end and second output terminal, first output end connects the anode of the first LED light string and the cathode of the second LED light string, second output terminal connects the cathode of the first LED light string and the anode of the second LED light string, the first LED light string and the second LED light string are controlled according to the on state of conducting control module The duration successively alternately lighted, and then adjust lighting programmers, it is only necessary to lighting programmers adjusting can be realized in two-wire, and engineering wiring installation difficulty and cost is greatly saved.
Description
Technical field
The present invention relates to LED light regulating technology field, in particular to a kind of two-wire adjusts the control circuit and control of lighting programmers
Device processed.
Background technique
In recent years, since energy consumption is high for incandescent lamp, as the novel illumination for replacing existing lighting apparatus, using LED light source
Lighting apparatus starts gradually to popularize, and incandescent lamp is substantially substituted by LED light, with low energy consumption and durability height etc. is excellent
Point.At present in the parameter regulation of LED light lighting area generally existing colour temperature and brightness, as shown in Figure 1, prior art neutral color temperature with
The adjusting of brightness is generally the different LED light string of two-way colour temperature to be adjusted by three lines, and then realize the tune of colour temperature and brightness
Section, this can be more troublesome on project installation especially large space and needs more costs.
Thus the prior art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of two-wires to adjust lighting programmers
Control circuit and control device, by by the different two paths of LED lamp string reverse parallel connection of colour temperature, and in the drive of dimming control signal
The duration that dynamic lower control two paths of LED lamp string is successively alternately lighted, and then adjust lighting programmers, it is only necessary to light ginseng can be realized in two-wire
Number is adjusted, and engineering wiring installation difficulty and cost is greatly saved.
In order to achieve the above object, this invention takes following technical schemes:
A kind of two-wire adjusts the control circuit of lighting programmers, contacts with different first LED light string of colour temperature and the second LED light
It connects comprising signal output module, driving conversion module and conducting control module, the signal output module and driving modulus of conversion
Block connects, and for exporting corresponding dimming control signal to conversion module is driven according to current light modulation parameter, the driving is converted
Module is connect with signal output module, for controlling the conducting control module according to the duty ratio of the dimming control signal
On state, the conducting control module have the first output end and second output terminal, and first output end connects the first LED
The anode of lamp string and the cathode of the second LED light string, the second output terminal connect the cathode and the second LED light of the first LED light string
The anode of string controls first LED light string according to the on state of the conducting control module and the second LED light string is successively handed over
For the duration lighted, and then adjust lighting programmers.
The two-wire is adjusted in the control circuit of lighting programmers, the driving conversion module include the first driving unit with
Second driving unit, the conducting control module include first control unit and the second control unit, the signal output module
It is single to the first driving unit and the second driving that first control signal and second control signal are exported respectively according to current light modulation parameter
Member, first driving unit are connect with first control unit, for controlling institute according to the duty ratio of the first control signal
The turn-on time for stating first control unit, when first control unit conducting, the first LED light string is lighted；Second driving
Unit is connect with the second control unit, for controlling second control unit according to the duty ratio of the second control signal
Turn-on time, when second control unit conducting, the second LED light string is lighted.
The two-wire is adjusted in the control circuit of lighting programmers, when adjusting light colour temperature, the signal output module
According to target colour temperature, the first control is adjusted while maintaining the sum of duty ratio of first control signal and second control signal to stablize
The duty ratio ratio of signal processed and second control signal.
The two-wire is adjusted in the control circuit of lighting programmers, when adjusting lamplight brightness, the signal output module
According to object brightness, equal proportion increases while the duty ratio ratio for maintaining first control signal and second control signal is stablized
Or reduce the duty ratio of first control signal and second control signal.
The two-wire is adjusted in the control circuit of lighting programmers, and first driving unit includes first resistor, second
Resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the first metal-oxide-semiconductor, the first triode and the second triode；Institute
The one end for stating first resistor connects the grid of the first metal-oxide-semiconductor, the other end connection signal output module of the first resistor and the
One end of two resistance, the other end connection first control unit of the second resistance also pass through 3rd resistor ground connection；Described first
The source electrode of metal-oxide-semiconductor is grounded, and the drain electrode of first metal-oxide-semiconductor connects base stage, the two or three pole of the first triode by the 4th resistance
One end of the base stage of pipe and the 5th resistance；The emitter of the grounded collector of first triode, first triode connects
Connect the emitter of the second triode and one end of the 6th resistance；The collector of second triode connects the another of the 5th resistance
End and VCC feeder ear；The other end of 6th resistance connects first control unit.
The two-wire is adjusted in the control circuit of lighting programmers, and second driving unit includes the 7th resistance, the 8th
Resistance, the 9th resistance, the tenth resistance, eleventh resistor, twelfth resistor, the second metal-oxide-semiconductor, third transistor and the four or three pole
Pipe；One end of 7th resistance connects the grid of the second metal-oxide-semiconductor, the other end connection signal output module of the 7th resistance
With one end of the 8th resistance, the other end of the 8th resistance connects the second control unit, also passes through the 9th resistance eutral grounding；It is described
The source electrode of second metal-oxide-semiconductor is grounded, and the drain electrode of second metal-oxide-semiconductor passes through the tenth resistance and connects the base stage of third transistor, the 4th
The base stage of triode and one end of eleventh resistor；The grounded collector of the third transistor, the hair of the third transistor
Emitter-base bandgap grading connects the emitter of the 4th triode and one end of twelfth resistor；The collector connection the 11st of 4th triode
The other end and VCC feeder ear of resistance；The other end of the twelfth resistor connects the second control unit.
The two-wire is adjusted in the control circuit of lighting programmers, and the first control unit includes third metal-oxide-semiconductor and the
Four metal-oxide-semiconductors, the grid of the third metal-oxide-semiconductor connect the first driving unit, the source electrode ground connection of the third metal-oxide-semiconductor, the third
The drain electrode of metal-oxide-semiconductor connects second output terminal；The grid of 4th metal-oxide-semiconductor connects the first driving unit, the 4th metal-oxide-semiconductor
Source electrode connects VCC feeder ear, and the drain electrode of the 4th metal-oxide-semiconductor connects the first output end.
The two-wire is adjusted in the control circuit of lighting programmers, and second control unit includes the 5th metal-oxide-semiconductor and the
Six metal-oxide-semiconductors, the grid of the 5th metal-oxide-semiconductor connect the second driving unit, and the source electrode of the 5th metal-oxide-semiconductor is grounded, and the described 5th
The drain electrode of metal-oxide-semiconductor connects the first output end；The grid of 6th metal-oxide-semiconductor connects the second driving unit, the 6th metal-oxide-semiconductor
Source electrode connects VCC feeder ear, and the drain electrode of the 6th metal-oxide-semiconductor connects second output terminal.
A kind of two-wire adjusts the control device of lighting programmers, including pcb board, is provided on the pcb board as described above
The control circuit of two-wire adjusting lighting programmers.
Compared to the prior art, two-wire provided by the invention is adjusted in control circuit and the control device of lighting programmers, institute
The control circuit for stating two-wire adjusting lighting programmers is connect with different first LED light string of colour temperature and the second LED light string comprising
Signal output module, driving conversion module and conducting control module, the signal output module are connect with driving conversion module, are used
In exporting corresponding dimming control signal to driving conversion module, the driving conversion module and signal according to current light modulation parameter
Output module connection, for controlling the on state of the conducting control module according to the duty ratio of the dimming control signal,
The conducting control module has the first output end and second output terminal, and first output end is connecting the first LED light string just
The cathode of pole and the second LED light string, the second output terminal connect the cathode of the first LED light string and the anode of the second LED light string,
Control what first LED light string and the second LED light string were successively alternately lighted according to the on state of the conducting control module
Duration, and then adjust lighting programmers.By by the different two paths of LED lamp string reverse parallel connection of colour temperature, and in dimming control signal
Driving under the control two paths of LED lamp string successively alternately duration lighted, it is only necessary to lighting programmers adjusting can be realized in two-wire, saves significantly
About engineering wiring installation difficulty and cost.
Detailed description of the invention
Fig. 1 is the schematic diagram that three lines adjust lighting programmers in the prior art.
Fig. 2 is the structural block diagram for the control circuit that two-wire provided by the invention adjusts lighting programmers.
Fig. 3 is that two-wire provided by the invention adjusts driving conversion module and conducting control mould in the control circuit of lighting programmers
The circuit diagram of block.
Fig. 4 is that two-wire provided by the invention adjusts dimming control signal in the control circuit Application Example of lighting programmers
Timing diagram.
Specific embodiment
The purpose of the present invention is to provide two-wire adjust lighting programmers control circuit and control device, by by colour temperature not
Identical two paths of LED lamp string reverse parallel connection, and control two paths of LED lamp string under the driving of dimming control signal and successively alternately light
Duration, and then adjust lighting programmers, it is only necessary to which lighting programmers adjusting can be realized in two-wire, and it is difficult that engineering wiring installation is greatly saved
Degree and cost.
To make the purpose of the present invention, technical solution and effect clearer, clear and definite, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to
Limit the present invention.
Referring to Fig. 2, two-wire provided by the invention adjusts the control circuit and different first LED of colour temperature of lighting programmers
Lamp string LED1 and the second LED light string LED2 connection, wherein the first LED light string LED1 and the second LED light string LED2 are reversely simultaneously
Connection, cool white lamp and warm white lamp is respectively adopted in the first LED light string LED1 and the second LED light string LED2, such as wherein cool white lamp
Reference color temperature 4500K ~ 10000K can be used, 2800K ~ 3500K can be used in the reference color temperature of warm white lamp, can be according to actual needs
Selection adjustment.It includes signal output module 10, driving conversion module that specifically the two-wire, which adjusts the control circuit of lighting programmers,
20 connect with conducting control module 30, the signal output module 10 with driving conversion module 20, the driving conversion module 20
It is connect with signal output module 10, the conducting control module 30 has the first output end and second output terminal, and described first is defeated
Outlet connects the anode of the first LED light string LED1 and the cathode of the second LED light string LED2, the second output terminal connection first
The anode of the cathode of LED light string LED1 and the second LED light string LED2.Wherein, the signal output module 10 is used for according to current
It dims parameter and exports corresponding dimming control signal to driving conversion module 20, the driving conversion module 20 is used for according to
The duty ratio of dimming control signal controls the on state of the conducting control module 30, according to the conducting control module 30
On state controls the duration that the first LED light string LED1 and the second LED light string LED2 are successively alternately lighted, and then adjusts lamp
Optical parameter.
Two-wire provided by the invention is adjusted in the control circuit of lighting programmers, by two outputs that control module 30 is connected
End is connect with the two paths of LED lamp string of reverse parallel connection, has saved wiring space and cost compared with the installation of three lines, is carrying out light ginseng
When number is adjusted, corresponding dimming control signal is exported to driving according to current desired light modulation parameter by signal output module 10
Conversion module 20, wherein signal output module 10 can be used Z-wave, Zigbee, wifi, the wireless modules such as bluetooth or lora,
The either output of the wired modules such as use KNX, DMX or DALI realization dimming control signal, described driving conversion module 20
The on state of the conducting control module 30 is controlled according to the duty ratio of the dimming control signal received, and then according to conducting shape
State controls the first LED light string LED1 and the second LED light string LED2 and is successively staggeredly connected, and two under different dimming control signals
Successively alternately the duration lighted is adjustable for street lamp string, since the colour temperature of two-way lamp string is not identical, human eye vision persistence characteristic with cut
Lighting programmers can be realized on naked eyes sense organ by changing under the control of conducting duration, the adjusting including colour temperature and brightness.By by color
The different two paths of LED lamp string reverse parallel connection of temperature, and control two paths of LED lamp string under the driving of dimming control signal and successively replace
The duration lighted, and then adjust lighting programmers, it is only necessary to lighting programmers adjusting can be realized in two-wire, and engineering wiring peace is greatly saved
Fill difficulty and cost.
Preferably, in other embodiments, the electrodeless bi-colour light for being packaged with different-colour LED chip can also be used as hair
Light unit can have different colour temperatures according to the difference in current lead-through direction in i.e. same lamp bead, when using this bi-colour light
When pearl, the first output end of the conducting control module 30 connects one end of double-colored lamp bead, and second output terminal connects double-colored lamp bead
The other end, according to the on state of the conducting control module 30 control double-colored lamp bead successively alternately the direction lighted and when
It is long, such as lighted when conducting to the left for cold light LED chip, it is lighted when being connected to the right for warm light LED chip, thus by controlling lamp
Pearl conducting direction and duration adjust lighting programmers.The selection of specific luminescence unit can be adjusted according to actual needs, below
It is illustrated in embodiment with the LED light string of two-way reverse parallel connection, it is to be understood that the course of work of following control circuit
It is equally applicable to above-mentioned double-colored lamp bead.Further, also referring to Fig. 3, the driving conversion module 20 includes the first driving
Unit 21 and the second driving unit 22, the conducting control module 30 include first control unit 31 and the second control unit 32,
First driving unit 21 and the second driving unit 22 are all connected with the signal output module 10, first driving unit 21
It is also connected with first control unit 31, second driving unit 22 is also connected with the second control unit 32, wherein the signal exports
Module 10 exports first control signal and second control signal to the first driving unit 21 and the according to current light modulation parameter respectively
Two driving units 22, i.e., as shown in figure 3, wherein G-signal and R signal are respectively signal output module 10 according to current desired tune
The first control signal and second control signal of optical parameter output, control two paths of LED is respectively driven by two path control signal
The working condition of lamp string, and then realize the adjusting of lighting programmers.Wherein first driving unit 21 is according to first control signal G
The duty ratio of signal controls the turn-on time of the first control unit 31, and the second driving unit 22 is according to second control signal R
The duty ratio of signal controls the turn-on time of second control unit 32, when the first control unit 31 conducting first
LED light string LED1 is lighted, when second control unit 32 conducting when the second LED light string LED2 light, by control G-signal and
R signal successively staggeredly exports high level, and according to the duty ratio of light modulation parameter regulation two path control signal, and then can individually control
The duration that two-way lamp string processed is successively alternately lighted can when adjusting the duty ratio of two path control signal since the colour temperature of lamp string is different
The light more succinct, wiring cost is cheap is realized in the brightness and color temperature adjustment for realizing whole lamps and lanterns after two paths of LED lamp string combines
Parameter regulation circuit.
Specifically, when adjusting light colour temperature, the signal output module 10 is controlled according to target colour temperature in maintenance first
The duty of first control signal and second control signal is adjusted while the sum of duty ratio of signal and second control signal is stablized
Compare ratio.For example, controlling the sum of duty ratio of G-signal and R signal no in the colour temperature of lamps and lanterns whole after adjusting lamp string combination
Become, for example, the sum of duty ratio of two paths of signals remain it is 90% constant, the sum of adjust the duty ratio ratio of G-signal and R signal, example
If the duty ratio of current G-signal and R signal is respectively 10% and 80%, whole lamps and lanterns are warm white at this time, when the past cool white light of needs
It when direction is adjusted, needs to increase the duty ratio of cool white lamp control signal at this time, reduces the duty ratio of warm white optical control signal, such as
It is 80% and 10% by the duty cycle adjustment of G-signal and R signal, i.e., by changing the conducting dutycycle of cool white lamp and warm white lamp come real
The adjusting of existing colour temperature.
And when adjusting lamplight brightness, the signal output module 10 is maintaining first control signal according to object brightness
Equal proportion increases or reduces first control signal and believes with the second control while stabilization with the duty ratio ratio of second control signal
Number duty ratio.For example, controlling the duty ratio ratio of G-signal and R signal in the brightness of lamps and lanterns whole after adjusting lamp string combination
It is constant, such as the duty ratio ratio of G-signal and R signal is that 1:1, respectively 40% and 40% then can equal proportion when adjusting brightness
The duty ratio for increasing or reducing the two can be sequentially reduced two-way control using 5% duty ratio as step-length when needing to dim light
The control ratio of signal processed, i.e., be successively adjusted to 35% and 35%, 30% and 30% etc., until reaching brightness needed for user, lighten lamp
Light time then similarly increases the duty ratio of the two, to realize the brightness regulation under certain color temperature.Although adjusting lamp
When the brightness and color temperature parameters of light, cool white lamp and warm white lamp are not simultaneously turned on, but since switching speed is faster than human eye
Time that can be differentiated, such as cool white lamp has been turned off but human eye seems or bright, open at this time warm white lamp can be realized it is mixed
Close colour temperature, therefore by control the different LED light string of two-way colour temperature sequentially turn on and adjust the two conducting duration can be real
Colour temperature brightness regulation after now combining realizes the function that lamps and lanterns colour temperature and brightness are intelligently adjusted by two-wire.
When it is implemented, as shown in figure 3, first driving unit 21 includes first resistor R1, second resistance R2, third
Resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the first metal-oxide-semiconductor M1, the first triode Q1 and the second triode
Q2；One end of the first resistor R1 connects the grid of the first metal-oxide-semiconductor M1, and the other end connection signal of the first resistor R1 is defeated
One end of module 10 and second resistance R2 out, the other end connection first control unit 31 of the second resistance R2, also by the
Three resistance R3 ground connection；The source electrode of the first metal-oxide-semiconductor M1 is grounded, and the drain electrode of the first metal-oxide-semiconductor M1 is connected by the 4th resistance R4
Connect the base stage, the base stage of the second triode Q2 and one end of the 5th resistance R5 of the first triode Q1；The first triode Q1's
Grounded collector, the emitter of the first triode Q1 connect the second triode Q2 emitter and the 6th resistance R6 one
End；The collector of the second triode Q2 connects the other end and VCC feeder ear of the 5th resistance R5；The 6th resistance R6's
The other end connects first control unit 31.
Second driving unit 22 includes the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the
11 resistance R11, twelfth resistor R12, the second metal-oxide-semiconductor M2, third transistor Q3 and the 4th triode Q4；7th resistance
One end of R7 connects the grid of the second metal-oxide-semiconductor M2, the other end connection signal output module 10 and the 8th of the 7th resistance R7
One end of resistance R8, the other end of the 8th resistance R8 connect the second control unit 32, also by the 9th resistance R9 ground connection；Institute
The source electrode ground connection of the second metal-oxide-semiconductor M2 is stated, the drain electrode of the second metal-oxide-semiconductor M2 passes through the tenth resistance R10 connection third transistor Q3
Base stage, the base stage of the 4th triode Q4 and one end of eleventh resistor R11；The grounded collector of the third transistor Q3,
The emitter of the third transistor Q3 connects the emitter of the 4th triode Q4 and one end of twelfth resistor R12；Described
The other end and VCC feeder ear of the collector connection eleventh resistor R11 of four triode Q4；The twelfth resistor R12's is another
One end connects the second control unit 32.
The first control unit 31 includes third metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4, the grid of the third metal-oxide-semiconductor M3
The first driving unit 21 is connected, the source electrode of the specific other end for connecting second resistance R2, the third metal-oxide-semiconductor M3 is grounded, described
The drain electrode of third metal-oxide-semiconductor M3 connects second output terminal；The grid of the 4th metal-oxide-semiconductor M4 connects the first driving unit 21, specifically
The other end of the 6th resistance R6 is connected, the source electrode of the 4th metal-oxide-semiconductor M4 connects VCC feeder ear, the leakage of the 4th metal-oxide-semiconductor M4
Pole connects the first output end.
Second control unit 32 includes the 5th metal-oxide-semiconductor M5 and the 6th metal-oxide-semiconductor M6, the grid of the 5th metal-oxide-semiconductor M5
The second driving unit 22 is connected, the source electrode of the specific other end for connecting the 8th resistance R8, the 5th metal-oxide-semiconductor M5 is grounded, described
The drain electrode of 5th metal-oxide-semiconductor M5 connects the first output end；The grid of the 6th metal-oxide-semiconductor M6 connects the second driving unit 22, specifically
The other end of twelfth resistor R12 is connected, the source electrode of the 6th metal-oxide-semiconductor M6 connects VCC feeder ear, the 6th metal-oxide-semiconductor M6
Drain electrode connect second output terminal.
The conducting control module 30 further includes first diode D1 and the second diode D2, the first diode D1's
Anode the first output end of connection, the cathode of the first diode D1 connect VCC feeder ear, the anode of the second diode D2
Second output terminal is connected, the cathode of the second diode D2 connects VCC feeder ear.
The first metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2, third metal-oxide-semiconductor M3 and the 5th metal-oxide-semiconductor M5 are NMOS tube, the 4th MOS
Pipe M4 and the 6th metal-oxide-semiconductor M6 is PMOS tube, wherein the third metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 is one group of the first LED of control
The conducting of lamp string LED1, the 5th metal-oxide-semiconductor M5 and the 6th metal-oxide-semiconductor M6 are one group, control the conducting of the second LED light string LED2,
Below in conjunction with Fig. 1 to Fig. 4, for concrete application embodiment, the control circuit of lighting programmers is adjusted to two-wire provided by the invention
The course of work is illustrated:
Signal output module 10 is exporting two path control signal, i.e. G-signal and R letter according to the light modulation parameter currently needed respectively
Number, two paths of signals is pwm signal, controls the first LED light string LED1(cool white lamp respectively) and the second LED light string LED2(warm white
Lamp) light, cool white lamp and warm white lamp are successively alternately lighted under the driving of two path control signal, specially G-signal and R signal according to
Secondary alternately output high level, when G-signal is high level, high level signal is exported by second resistance R2 to third metal-oxide-semiconductor M3
Grid, control third metal-oxide-semiconductor M3 conducting, while high level signal by the first metal-oxide-semiconductor M1 it is reversed, then pass through the first triode
The push-pull circuit output of Q1 and the second triode Q2 composition provides low level, and the 4th MOS of control closes conducting, otherwise when G-signal is
Then third metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 is closed when low level, due to the circuit and the first driving unit of the second driving unit 22
21 circuit is symmetric circuit, therefore signal conduction control principle is consistent, does not repeat herein, i.e., the when R signal is high level
Five metal-oxide-semiconductor M5 and the 6th metal-oxide-semiconductor M6 conducting, the 5th metal-oxide-semiconductor M5 and the 6th metal-oxide-semiconductor M6 is closed when R signal is low level.
Since two paths of signals is successively alternately to export high level, be connected in third metal-oxide-semiconductor M3 and third metal-oxide-semiconductor M3
When, supply voltage VCC closed by the 4th MOS after after the first LED light string LED1 using being reached after the second LED light string LED2
Third metal-oxide-semiconductor M3 ground connection realizes that circuit loop lights first at this time since the 5th metal-oxide-semiconductor M5 and the 6th metal-oxide-semiconductor M6 is closed
LED light string LED1, that is, cool white lamp；And when the 5th metal-oxide-semiconductor M5 and the 6th metal-oxide-semiconductor M6 is connected, supply voltage VCC passes through the 6th MOS
Pipe M6 after the second LED light string LED2 using after the first LED light string LED1 reach the 5th metal-oxide-semiconductor M5 ground connection, at this time due to
Third metal-oxide-semiconductor M3 and the 4th metal-oxide-semiconductor M4 is closed, therefore realizes that circuit loop lights the first LED light string LED1 i.e. warm white, therefore
The working condition of bilinear con- trol two paths of LED lamp string is realized by four metal-oxide-semiconductors.
In one cycle, it when adjusting colour temperature, is realized by the high level ratio of control G-signal and R signal, i.e. 10%+
80%, 20%+70% ..., 80%+10% etc.；And in one cycle, when adjusting brightness, i.e., (two are kept under some colour temperature
Road signal high level constant rate) proportional increase or reduction duty ratio, such as the high level 45%+ in G-signal and R signal
Under 45%, need to dim light, it can be sequentially adjusted in for 40%+40%, 35%+35% ..., 5%+5%, it is emphasized that, in color
When warm inclined lower and upper limit, it is subject to duty smaller signal when adjusting brightness, such as 10%+80%, proportional reduction will 0%+
70%, it at this time should just knock out rather than become warm white or cool white lights, it is preferable that can be avoided when colour temperature is arranged this
The excessive setting parameter of gap, if certainly user it is big to the precision prescribed range of colour temperature continue to account for current ratio reduction
Empty ratio, specifically can be according to the actual demand adjusting parameter setting requirements of user.
As in Figure 4 (a), when G-signal duty ratio is much larger than R signal duty ratio in a cycle, then lamps and lanterns are showed
For cool white light, when being adjusted to R signal duty ratio much larger than G-signal duty ratio, then lamps and lanterns show as warm white, when adjusting colour temperature
When, as in Figure 4 (b), when the high level ratio of G-signal and R signal is close to a ratio a period of time, then lamps and lanterns show as nature
Light, when adjusting the brightness, as shown in (c) in Fig. 4, the sum of duty ratio of G-signal and R signal equal proportion is reduced in (b)
Half, therefore the natural light that brightness is in (b) 50% is shown as, to realize the colour temperature brightness regulation of two-wire.
The present invention correspondingly provides the control device that a kind of two-wire adjusts lighting programmers, including pcb board, on the pcb board
It is provided with the control circuit that two-wire as described above adjusts lighting programmers, due to adjusting lighting programmers to the two-wire above
Control circuit is described in detail, and and will not be described here in detail.
In conclusion two-wire provided by the invention is adjusted in control circuit and the control device of lighting programmers, the two-wire
The control circuit for adjusting lighting programmers is connect with different first LED light string of colour temperature and the second LED light string comprising signal is defeated
Module, driving conversion module and conducting control module, the signal output module are connect with driving conversion module out, are used for basis
Current light modulation parameter exports corresponding dimming control signal to conversion module is driven, and the driving conversion module and signal export mould
Block connection, it is described to lead for controlling the on state of the conducting control module according to the duty ratio of the dimming control signal
Logical control module has the first output end and a second output terminal, and first output end connects the anode and the of the first LED light string
The cathode of two LED light strings, the second output terminal connects the cathode of the first LED light string and the anode of the second LED light string, according to institute
The on state for stating conducting control module controls the duration that first LED light string and the second LED light string are successively alternately lighted, into
And adjust lighting programmers.By by the different two paths of LED lamp string reverse parallel connection of colour temperature, and under the driving of dimming control signal
The duration that control two paths of LED lamp string is successively alternately lighted, it is only necessary to which lighting programmers adjusting can be realized in two-wire, and engineering is greatly saved
It is routed installation difficulty and cost.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (9)
1. the control circuit that a kind of two-wire adjusts lighting programmers, which is characterized in that with different first LED light string of colour temperature and the
Two LED light strings connection comprising signal output module, driving conversion module and conducting control module, the signal output module
Connect with driving conversion module, for according to the corresponding dimming control signal of current light modulation parameter output to driving conversion module,
The driving conversion module is connect with signal output module, for leading according to the control of the duty ratio of the dimming control signal
The on state of logical control module, the conducting control module have the first output end and second output terminal, first output
The anode of the first LED light string of end connection and the cathode of the second LED light string, the second output terminal connect the negative of the first LED light string
The anode of pole and the second LED light string controls first LED light string and second according to the on state of the conducting control module
The duration that LED light string is successively alternately lighted, and then adjust lighting programmers.
2. the control circuit that two-wire according to claim 1 adjusts lighting programmers, which is characterized in that the driving modulus of conversion
Block includes the first driving unit and the second driving unit, and the conducting control module includes that first control unit and the second control are single
Member, the signal output module export first control signal and second control signal to the first drive according to current light modulation parameter respectively
Moving cell and the second driving unit, first driving unit are connect with first control unit, for according to first control
The duty ratio of signal controls the turn-on time of the first control unit, the first LED light when first control unit conducting
String is lighted；Second driving unit is connect with the second control unit, for the duty ratio control according to the second control signal
The turn-on time for making second control unit, when second control unit conducting, the second LED light string is lighted.
3. the control circuit that two-wire according to claim 2 adjusts lighting programmers, which is characterized in that when adjusting light colour temperature
When, the signal output module is maintaining the sum of first control signal and the duty ratio of second control signal according to target colour temperature
The duty ratio ratio of first control signal and second control signal is adjusted while stabilization.
4. the control circuit that two-wire according to claim 2 adjusts lighting programmers, which is characterized in that when adjusting lamplight brightness
When, the signal output module is according to object brightness, in the duty ratio ratio for maintaining first control signal and second control signal
Equal proportion increases or reduces the duty ratio of first control signal and second control signal while stabilization.
5. the control circuit that two-wire according to claim 2 adjusts lighting programmers, which is characterized in that first driving is single
Member includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the first metal-oxide-semiconductor, the one or three
Pole pipe and the second triode；One end of the first resistor connects the grid of the first metal-oxide-semiconductor, and the other end of the first resistor connects
Connect one end of signal output module and second resistance, the other end connection first control unit of the second resistance, also by the
Three resistance eutral groundings；The source electrode of first metal-oxide-semiconductor is grounded, and the drain electrode of first metal-oxide-semiconductor passes through the 4th resistance connection the one or three
One end of the base stage of pole pipe, the base stage of the second triode and the 5th resistance；The grounded collector of first triode, described
The emitter of one triode connects the emitter of the second triode and one end of the 6th resistance；The collector of second triode
Connect the other end and VCC feeder ear of the 5th resistance；The other end of 6th resistance connects first control unit.
6. the control circuit that two-wire according to claim 2 adjusts lighting programmers, which is characterized in that second driving is single
Member includes the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, eleventh resistor, twelfth resistor, the second metal-oxide-semiconductor, the
Three triodes and the 4th triode；One end of 7th resistance connects the grid of the second metal-oxide-semiconductor, the 7th resistance it is another
One end of connection signal output module and the 8th resistance is held, the other end of the 8th resistance connects the second control unit, also leads to
Cross the 9th resistance eutral grounding；The source electrode of second metal-oxide-semiconductor is grounded, and the drain electrode of second metal-oxide-semiconductor passes through the tenth resistance connection the
One end of the base stage of three triodes, the base stage of the 4th triode and eleventh resistor；The grounded collector of the third transistor,
The emitter of the third transistor connects the emitter of the 4th triode and one end of twelfth resistor；4th triode
Collector connection eleventh resistor the other end and VCC feeder ear；The second control of other end connection of the twelfth resistor
Unit.
7. the control circuit that two-wire according to claim 2 adjusts lighting programmers, which is characterized in that first control is single
Member includes third metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, and the grid of the third metal-oxide-semiconductor connects the first driving unit, the third metal-oxide-semiconductor
Source electrode ground connection, the drain electrode of the third metal-oxide-semiconductor connects second output terminal；The first driving of grid connection of 4th metal-oxide-semiconductor
Unit, the source electrode of the 4th metal-oxide-semiconductor connect VCC feeder ear, and the drain electrode of the 4th metal-oxide-semiconductor connects the first output end.
8. the control circuit that two-wire according to claim 2 adjusts lighting programmers, which is characterized in that second control is single
Member includes the 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor, and the grid of the 5th metal-oxide-semiconductor connects the second driving unit, the 5th metal-oxide-semiconductor
Source electrode ground connection, the drain electrode of the 5th metal-oxide-semiconductor connects the first output end；The second driving of grid connection of 6th metal-oxide-semiconductor
Unit, the source electrode of the 6th metal-oxide-semiconductor connect VCC feeder ear, and the drain electrode of the 6th metal-oxide-semiconductor connects second output terminal.
9. a kind of two-wire adjusts the control device of lighting programmers, including pcb board, which is characterized in that on the pcb board setting just like
The control circuit of the adjusting lighting programmers of two-wire described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910146881.0A CN109769320A (en) | 2019-02-27 | 2019-02-27 | A control circuit and control device for adjusting light parameters with two lines |
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| CN201910146881.0A CN109769320A (en) | 2019-02-27 | 2019-02-27 | A control circuit and control device for adjusting light parameters with two lines |
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| CN201910146881.0A Pending CN109769320A (en) | 2019-02-27 | 2019-02-27 | A control circuit and control device for adjusting light parameters with two lines |
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| CN110856301A (en) * | 2019-11-28 | 2020-02-28 | 宁波海曙浩然灯具有限公司 | A circuit that can adjust both warm and cool colors and brightness |
| CN111405704A (en) * | 2020-04-26 | 2020-07-10 | 众普森科技（株洲）有限公司 | Control circuit of a lamp and lamp |
| CN111446834A (en) * | 2020-04-03 | 2020-07-24 | 中国水产科学研究院东海水产研究所 | A swing power generation device using the principle of electromagnetic induction |
| CN112135387A (en) * | 2019-06-05 | 2020-12-25 | 香港晟瑞科技有限公司 | A system for adjusting the color temperature and brightness of an LED light source |
| CN113382501A (en) * | 2021-06-28 | 2021-09-10 | 众普森科技（株洲）有限公司 | Illumination control circuit and lamp |
| CN114801976A (en) * | 2022-05-12 | 2022-07-29 | 东风柳州汽车有限公司 | Far and near light lamp control circuit |
| CN114900930A (en) * | 2022-05-28 | 2022-08-12 | 中山市磁恒科技有限公司 | A multifunctional dimming circuit structure |
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| CN113382501A (en) * | 2021-06-28 | 2021-09-10 | 众普森科技（株洲）有限公司 | Illumination control circuit and lamp |
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| CN114801976A (en) * | 2022-05-12 | 2022-07-29 | 东风柳州汽车有限公司 | Far and near light lamp control circuit |
| CN114900930A (en) * | 2022-05-28 | 2022-08-12 | 中山市磁恒科技有限公司 | A multifunctional dimming circuit structure |
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