CN106061042A - LED light modulator, LED light modulation panel, LED light modulation method and LED driving device - Google Patents
LED light modulator, LED light modulation panel, LED light modulation method and LED driving device Download PDFInfo
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- CN106061042A CN106061042A CN201610586082.1A CN201610586082A CN106061042A CN 106061042 A CN106061042 A CN 106061042A CN 201610586082 A CN201610586082 A CN 201610586082A CN 106061042 A CN106061042 A CN 106061042A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The present invention discloses a LED light modulator, a LED light modulation panel, a LED light modulation method and a LED driving device. The LED light modulator comprises: a light modulation data generator configured to generate pulse signals according to starting signals; a first regulation device configured to connect with the light modulation data generator, wherein the light modulation data generator generates pulse signals according to regulation signals of the first regulation signals to represent light modulation data; a modulator connected with the light modulation data generator and configured to superpose alternating input voltage with the pulse signals so as to generate electric power carrier signals; and a second regulation device connected with the modulator, wherein the second regulation device is taken as an additional regulation device for transmitting additional light modulation signals through the switching itself, and the electric power carrier signals and the additional light modulation signals are configured to control the bright and/or color temperature of the LED light. Because one light modulator includes two types of regulation devices, many control requirements can be satisfied, and therefore the cost of a circuit is reduced and the reliability is improved.
Description
Technical field
The present invention relates to light source control technology, more particularly, to for LED LED dimmer, LED light modulation panel,
LED light-dimming method and LED drive device.
Background technology
When light emitting diode (light-emitting diode, LED) is used for lighting field, use LED light modulating device
Regulation brightness is to meet the individual demand of user or to dim to reduce energy consumption according to need for environment.Use LED light modulating device
Brightness and the colour temperature of LED can be adjusted, to reach the demand of user.
LED light modulating device is for example with traditional controllable silicon dimmer.But, there is maintenance electric current one in controllable silicon dimmer
The problem that cause property differs, and the product of every country, each brand there is also difference, compatible the asking of dimmer easily occurs
Topic.Additionally, there is also the phenomenons such as flicker in dimming process.The LED light modulating device improved further uses power modulus of conversion
Block provides VD, and the electric current being flow through LED by change realizes light modulation.Power conversion module is adapted to wide scope
Supply voltage and stable electric current is provided, and intelligent dimming can be realized, be widely used.
Fig. 1 illustrates the schematic block diagram of the LED light adjusting system according to prior art.This LED light adjusting system includes dimmer
110, LED drive device 120 and LED 130.Dimmer 110 is connected via Alternating Current Power Supply line with LED drive device 120.Adjust
Light device 110 produces power carrier signal according to the operation of user.LED 130, as the load of power conversion module, is connected to
Between two outfans of LED drive device 120.
LED drive device 120 includes rectifier bridge 111, power conversion module 122, decoupling module 123 and control module 124.
This rectifier bridge 111 obtains AC-input voltage from utility grid, and obtains DC bus-bar voltage through over commutation.Power modulus of conversion
DC bus-bar voltage is converted further into VD by block 122.Decoupling module 123 obtains electric power from DC bus-bar voltage
Carrier signal, and decode light modulation data signal, control module 124 produces control letter further according to light modulation data signal
Number.Power conversion module 122 regulates output voltage and/or electric current under control of the control signal.Due to output voltage and/or electricity
The change of stream, the brightness of LED, color change.
In this LED light adjusting system, dimmer and LED drive device are connected in series, and use public phase line and zero
Line is powered and transmits power carrier signal.But, use single adjusting means to be difficult to meet user many to LED
Plant the demand controlled.Such as, the adjusting means of dimmer is the first adjusting means, for the brightness of indication LED lamp.If LED
Lamp also needs to regulate colour temperature, and the most single adjusting means is difficult to meet two kinds of demands for control simultaneously.
Therefore, existing LED dimmer, when realizing two or more demands for control, needs to use multiple dimmer.
But, use multiple dimmer to cause circuit cost to increase the interference between multiple dimmer, cause less reliable.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of dimmer and LED drive device, wherein, a light modulation
Device comprises the first adjusting means and two kinds of adjusting meanss of the second adjusting means, such that it is able to meet various control demand, and
Circuit cost can be reduced and improve reliability.
According to the first aspect of the invention, it is provided that a kind of LED dimmer, it is characterised in that including: light modulation data occur
Device, for producing pulse signal according to enabling signal；First adjusting means, is connected with light modulation number generator, wherein, and light modulation
Number generator produces pulse signal to characterize light modulation data according to the regulation signal of the first adjusting means；Manipulator, with light modulation
Number generator is connected, and for AC-input voltage is superimposed with pulse signal, thus produces power carrier signal；And
Second adjusting means, is connected with manipulator, and wherein, described second adjusting means, as additional adjusting means, utilizes self
The additional dim signal of break-make transmission, wherein, described power carrier signal and described additional dim signal are used for controlling LED
The brightness of lamp and/or colour temperature.
Preferably, also include: zero passage detection module, for detecting the zero-acrross ing moment of AC-input voltage, to produce zero passage
Detection signal；And time delay module, it is connected with zero passage detection module, for producing enabling signal according to zero passage detection signal.
Preferably, described zero passage detection module is used for detecting described AC-input voltage and is changed into negative voltage from positive voltage value
Value and from negative value be changed to positive magnitude of voltage at least one zero-acrross ing moment.
Preferably, described time delay module is after zero-acrross ing moment, and delay scheduled time, by described enabling signal from invalid
State is changed into effective status.
Preferably, wherein T0 is AC-input voltage in the range of 4/16*T0～7/16*T0 the described scheduled time
Cycle.
Preferably, substantially 3/8T0 of the described scheduled time.
Preferably, the level of described pulse signal characterizes digital value.
Preferably, described manipulator carries out amplitude modulation.
Preferably, the first adjusting means is any one in adjustable resistance, switch and rotary coding switch.
Preferably, the second adjusting means is switch.
According to the second aspect of the invention, it is provided that a kind of LED dims panel, it is characterised in that including: LED dimmer
Main circuit；Circuit box, for accommodating the main circuit of LED dimmer；Knob on front panel, and plate forward-mounted and pressing
Key；Installing plate, is used for connecting front panel and permanent circuit box；And terminals, it is used for connecting Alternating Current Power Supply line.
Preferably, described LED dimmer includes: light modulation number generator, for producing pulse signal according to enabling signal；
First adjusting means, is connected with light modulation number generator, and wherein, light modulation number generator is according to the regulation of the first adjusting means
Signal produces pulse signal to characterize light modulation data；Manipulator, is connected with light modulation number generator, for by exchange input electricity
Press superimposed with pulse signal, thus produce power carrier signal；And second adjusting means, it is connected with manipulator, wherein,
Described second adjusting means, as additional adjusting means, utilizes the dim signal that the break-make transmission of self is additional, wherein, described
Power carrier signal and described additional dim signal are for controlling brightness and/or the colour temperature of LED.
Preferably, knob is connected to the first adjusting means for changing regulation signal, and button is connected to the second adjusting means
For switching its on off operating mode.
Preferably, also include: zero passage detection module, for detecting the zero-acrross ing moment of AC-input voltage, to produce zero passage
Detection signal；And time delay module, it is connected with zero passage detection module, for producing enabling signal according to zero passage detection signal.
Preferably, described installing plate also includes opening, is used for using screw to be fixed in wall.
Preferably, the first adjusting means is any one in adjustable resistance, switch and rotary coding switch.
Preferably, the second adjusting means is switch.
According to the third aspect of the invention we, it is provided that a kind of LED drive device, it is characterised in that including: rectifier bridge, be used for
By AC-input voltage rectification to obtain DC bus-bar voltage；Power conversion module is straight for producing according to DC bus-bar voltage
Stream output voltage, thus power for LED；Decoupling module, for obtaining power carrier signal from DC bus-bar voltage, and solves
Code goes out to dim data signal；Control module, for producing the first control signal according to light modulation data signal, thus regulates power and turns
The output voltage of die change block and/or electric current；And enumerator, for obtaining additional dim signal according to DC bus-bar voltage,
Wherein, described additional dim signal is by switching on-off generation, and described enumerator is carried out according to described additional dim signal
Counting, to produce count value；Mode register, for producing the second control signal according to count value, wherein, described LED drives
Device controls brightness and/or the colour temperature of LED according to described first control signal and described second control signal.
Preferably, described power conversion module is flyback power changer.
Preferably, described decoupling module includes: high pass filter, for obtaining high-frequency signal from DC bus-bar voltage；With
And comparator, it is used for by described high-frequency signal compared with reference voltage, to produce described light modulation data signal.
Preferably, described enumerator is circulated counting, described mode register stored count value and the second control signal
Corresponding relation, thus, when count value varying cyclically, the second control signal the most correspondingly circulation change.
According to the fourth aspect of the invention, it is provided that a kind of LED light-dimming method, including: produce enabling signal；In enabling signal
Time effectively, produce pulse signal according to the regulation signal of the first adjusting means；AC-input voltage is superimposed with pulse signal,
Thus produce power carrier signal；And utilize the break-make of the second adjusting means self, thus produce additional dim signal, its
In, described power carrier signal and described additional dim signal are for controlling brightness and/or the colour temperature of LED.
Preferably, produce enabling signal and include: the zero-acrross ing moment of detection AC-input voltage, to produce zero passage detection letter
Number；And produce enabling signal according to zero passage detection signal.
Preferably, the zero-acrross ing moment of detection AC-input voltage includes: detect described AC-input voltage from positive voltage value
Be changed into negative value and from negative value be changed to positive magnitude of voltage at least one zero-acrross ing moment.
Preferably, after zero-acrross ing moment, delay scheduled time, described enabling signal is changed into effectively from disarmed state
State.
Preferably, wherein T0 is AC-input voltage in the range of 4/16*T0～7/16*T0 the described scheduled time
Cycle.
Preferably, substantially 3/8T0 of the described scheduled time.
Preferably, the level of described pulse signal characterizes digital value.
Preferably, by amplitude modulation, produce power carrier signal.
Preferably, also include: produce VD according to DC bus-bar voltage, thus power for LED；From direct current
Busbar voltage obtains power carrier signal, and decodes light modulation data signal；The first control is produced according to light modulation data signal
Signal, thus regulate output voltage and/or the electric current of power conversion module；And obtain additional light modulation from DC bus-bar voltage
Signal, wherein, described additional dim signal is by switching on-off generation；The second control letter is produced according to additional dim signal
Number；And brightness and/or the colour temperature of LED is controlled according to described first control signal and described second control signal.
Dimmer according to embodiments of the present invention, comprises the first adjusting means and the second adjusting means in a dimmer
Two kinds of adjusting meanss, dimmer utilizes the break-make of power carrier signal and the second adjusting means to transmit two kinds to LED drive device
Different dim signals, such that it is able to meet various control demand, and can reduce circuit cost and improve reliability.
Accompanying drawing explanation
By description to the embodiment of the present invention referring to the drawings, above-mentioned and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 illustrates the schematic block diagram of the LED light adjusting system according to prior art；
Fig. 2 illustrates the schematic block diagram of LED light adjusting system according to embodiments of the present invention；
Fig. 3 a and 3b illustrates the structural representation of LED light modulation panel according to embodiments of the present invention.
Detailed description of the invention
It is more fully described the present invention hereinafter with reference to accompanying drawing.In various figures, it is attached that identical element employing is similar to
Figure labelling represents.For the sake of clarity, the various piece in accompanying drawing is not necessarily to scale.Furthermore, it is possible to not shown some
Known part.
Describe hereinafter the many specific structure of details, such as device, material, size, place's science and engineering of the present invention
Skill and technology, in order to be more clearly understood that the present invention.But the most as the skilled person will understand, may be used not
The present invention is realized according to these specific details.
The present invention can present in a variety of manners, some of them example explained below.
Fig. 2 illustrates the schematic block diagram of LED light adjusting system according to embodiments of the present invention.
This LED light adjusting system includes dimmer 210, LED drive device 220 and LED 230.Dimmer 210 is as master control
Device processed, produces power carrier signal for the operation according to user, and LED drive device 220 is as from controller, for according to electricity
Power carrier signal controls to be supplied to the VD of LED 230.
Dimmer 210 is connected via Alternating Current Power Supply line with LED drive device 220.Such as, dimmer 210 is connected to city
The phase line of electricity electrical network.The first input end of LED drive device 220 is connected to dimmer 210, and the second input is connected to civil power electricity
The zero line of net.LED 230, as the load of power conversion module, is connected to first outfan and of LED drive device 220
Between two outfans.
Different from the LED light adjusting system of the prior art shown in Fig. 1, in LED light adjusting system according to embodiments of the present invention
Dimmer 210 in each half power frequency period, carry out impulse modulation to produce power carrier signal.To this end, dimmer 210 wraps
Include zero passage detection module 211, time delay module 212, light modulation number generator 213 and manipulator 214, and the first adjusting means S
With the second adjusting means K.
The input of dimmer 210 is connected to phase line, and outfan is connected to LED drive device 220, such that it is able to via electricity
Line of force transmission light modulation data signal.Dimmer 210 receives AC-input voltage, the frequency of this AC-input voltage e.g. 50Hz
(0.02 second cycle) or 60Hz (0.017 second), the corresponding cycle is T0.
Zero passage detection module 211 is for AC-input voltage, and detection is from negative value to positive voltage value or from positive voltage
It is worth the zero-acrross ing moment t0 to negative value, and produces zero passage detection signal.
Time delay module 212 receives zero passage detection signal and produces enabling signal.Pre-timing is postponed after zero-acrross ing moment
Between Δ t.After each half power frequency period, in the moment after the peak value of AC-input voltage or valley, enabling signal is from invalid
State is transformed into effective status.Such as, this scheduled time Δ t is 4/16*T0～7/16*T0.Preferably, this moment is positioned at exchange
Near the position of the sinusoidal wave form halfwidth of input voltage, correspondingly, this scheduled time Δ t is about 3/8*T0.
Light modulation number generator 213 receives enabling signal, and when enabling signal is effective, light modulation number generator 213 provides
Pulse signal.The level of this pulse signal characterizes digital value, such as high level and characterizes numeral " 1 ", and low level characterizes digital " 0 ".
First adjusting means S is connected with light modulation number generator 213, and light modulation number generator 213 is according to the first regulation
The regulation signal of device produces pulse signal to characterize light modulation data.Such as, user uses knob to change the first adjusting means S
Resistance value.Correspondingly, the light modulation data that continuous print pulse signal characterizes also change.
Manipulator 214 is superimposed with AC-input voltage by pulse signal, thus produces power carrier signal.This electric power carries
The ripple signal e.g. sine wave of amplitude modulation in each half work cycle.
Second adjusting means K is connected between the outfan of manipulator 214 and dimmer 210.LED drive device 220 with
Dimmer 210 is connected.When the second adjusting means K Guan Bi, LED drive device 220 is connected with utility grid, dimmer
210 transmit power carrier signal to LED drive device 220.When the second adjusting means K disconnects, LED drive device 220 and city
Electricity electrical network separated.Second adjusting means K also as additional adjusting means, utilizes the break-make of self to LED drive device
The dim signal that 220 transmission are additional.
LED drive device 220 include rectifier bridge 211, power conversion module 222, decoupling module 223 and control module 224,
And enumerator 225 and mode register 226.
Rectifier bridge 211 for example, full bridge rectifier, obtains AC-input voltage from utility grid, obtains straight through over commutation
Stream busbar voltage.The DC pulse moving voltage of described DC bus-bar voltage e.g. half power frequency period.Power conversion module 222 is such as
For comprising inverse-excitation type (FLY-BACK) power inverter of main second adjusting means pipe, DC bus-bar voltage is converted further into
VD.
Decoupling module 223 such as includes high pass filter and comparator.High pass filter obtains height from DC bus-bar voltage
Frequently signal.Comparator by described high-frequency signal compared with reference voltage, to produce described light modulation data signal.Control module
224 produce the first control signal, such as pulse-width signal further according to light modulation data signal.Power conversion module 222 exists
Output voltage and/or electric current is regulated, such as regulating the brightness of LED under the control of the first control signal.
Enumerator 225 obtains additional dim signal from DC bus-bar voltage.The second adjusting means in dimmer 210
When off-state switches to closure state, enumerator 225 counts, to produce count value.Mode register 226 is according to meter
Numerical value produces the second control signal.Power conversion module 222 regulates output voltage and/or electricity under the control of the second control signal
Stream, such as regulating the colour temperature of LED.
Preferably, enumerator 225 can be circulated counting, and in mode register 226, stored count value and second controls
The corresponding relation of signal.Thus, when count value varying cyclically, the colour temperature of LED the most correspondingly circulation change.
Due to output voltage and/or the change of electric current of power conversion module 222, the brightness of LED, color become
Change, thus realize light modulation.
LED light adjusting system according to embodiments of the present invention, in each half power frequency period, uses impulse modulation to produce electric power
Carrier signal, in multiple half power frequency period of continuous print, transmission light modulation data signal.Dimmer 210 uses zero passage detection module
And time delay module, i.e. can realize the modulation control of power carrier signal.Therefore, dimmer 210 is without using special electric power
Carrier communication chip, such as, low-voltage powerline carrier communication chip PL3106, such that it is able to reduce circuit cost.
LED drive device 220 detects pulse signal after the peak value of DC bus-bar voltage, i.e. can realize power carrier
The uneoupled control of signal.Therefore, LED drive device 220 dims data signal without using complicated data resolution module to resolve,
Such that it is able to reduction circuit cost.
Further, a dimmer comprises the first adjusting means and two kinds of adjusting meanss of the second adjusting means, adjust
Light device is utilized respectively power carrier signal and transmits two kinds of different light modulations letters with the break-make of the second adjusting means to LED drive device
Number, such that it is able to meet various control demand, and circuit cost can be reduced and improve reliability.
In the above-described embodiment, describing dimmer uses the first adjusting means to produce dim signal.In the reality substituted
Execute in example, rotary coding switch can be used to substitute the first adjusting means.This rotary coding switch utilizes knob and the second regulation
The contact of the multiple contacts within device produces the pulse signal of strict sequential order.
Fig. 3 a and 3b illustrates the structural representation of LED light modulation panel according to embodiments of the present invention.This LED dims panel example
The form of switch panel in this way, Fig. 3 a illustrates the axonometric chart of switch panel when observing from front, and Fig. 3 b illustrates when observing from the back side
The axonometric chart of switch panel.
As shown in Figure 3 a, LED light modulation panel includes knob 201, button 202 and front panel 203.Knob 201 and button
On 202 plates 203 forward-mounted.Knob 201 is connected to the first adjusting means S for changing its resistance value.Button 202 is connected to
Second adjusting means K is used for switching its on off operating mode.
As shown in Figure 3 b, LED light modulation panel includes installing plate 204, circuit box 205 and terminals 206.Installing plate 204 is used
In connecting front panel 203, and for permanent circuit box 205.Installing plate 204 also includes opening, is used for using screw to be consolidated
It is scheduled on wall.Circuit box 205 is for accommodating the main circuit of dimmer 210 as shown in Figure 2.Two terminals 206 are respectively
The input of dimmer 210 and outfan.For being connected to Alternating Current Power Supply line.
It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
According to embodiments of the invention as described above, these embodiments do not have all of details of detailed descriptionthe, the most not
Limit the specific embodiment that this invention is only described.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is to preferably explain the principle of the present invention and actual application, so that affiliated
Technical field technical staff can utilize the present invention and amendment on the basis of the present invention to use well.The present invention is only by right
Claim and four corner thereof and the restriction of equivalent.
Claims (30)
1. a LED dimmer, it is characterised in that including:
Light modulation number generator, for producing pulse signal according to enabling signal；
First adjusting means, is connected with light modulation number generator, and wherein, light modulation number generator is according to the first adjusting means
Regulation signal produces pulse signal to characterize light modulation data；
Manipulator, is connected with light modulation number generator, for AC-input voltage is superimposed with pulse signal, thus produces
Power carrier signal；And
Second adjusting means, is connected with manipulator, and wherein, described second adjusting means, as additional adjusting means, utilizes
The dim signal that the break-make transmission of self adds,
Wherein, described power carrier signal and described additional dim signal are for controlling brightness and/or the colour temperature of LED.
LED dimmer the most according to claim 1, it is characterised in that also include:
Zero passage detection module, for detecting the zero-acrross ing moment of AC-input voltage, to produce zero passage detection signal；And
Time delay module, is connected with zero passage detection module, for producing enabling signal according to zero passage detection signal.
LED dimmer the most according to claim 2, it is characterised in that described zero passage detection module is used for detecting described friendship
Stream input voltage from positive voltage value be changed into negative value and from negative value be changed to positive magnitude of voltage at least one mistake
Zero moment.
LED dimmer the most according to claim 2, it is characterised in that described time delay module, after zero-acrross ing moment, postpones
The scheduled time, described enabling signal is changed into effective status from disarmed state.
LED dimmer the most according to claim 4, it is characterised in that the described scheduled time is at 4/16*T0～7/16*T0
In the range of, wherein T0 is the cycle of AC-input voltage.
LED dimmer the most according to claim 5, it is characterised in that substantially 3/8T0 of the described scheduled time.
LED dimmer the most according to claim 1, it is characterised in that the level of described pulse signal characterizes digital value.
LED dimmer the most according to claim 1, it is characterised in that described manipulator carries out amplitude modulation.
LED dimmer the most according to claim 1, it is characterised in that the first adjusting means is selected from adjustable resistance, switch
With any one in rotary coding switch.
LED dimmer the most according to claim 1, it is characterised in that the second adjusting means is switch.
11. 1 kinds of LED dim panel, it is characterised in that including:
The main circuit of LED dimmer；
Circuit box, for accommodating the main circuit of LED dimmer；
Knob on front panel, and plate forward-mounted and button；
Installing plate, is used for connecting front panel and permanent circuit box；And
Terminals, are used for connecting Alternating Current Power Supply line.
12. LED switch panels according to claim 11, it is characterised in that described LED dimmer includes:
Light modulation number generator, for producing pulse signal according to enabling signal；
First adjusting means, is connected with light modulation number generator, and wherein, light modulation number generator is according to the first adjusting means
Regulation signal produces pulse signal to characterize light modulation data；
Manipulator, is connected with light modulation number generator, for AC-input voltage is superimposed with pulse signal, thus produces
Power carrier signal；And
Second adjusting means, is connected with manipulator, and wherein, described second adjusting means, as additional adjusting means, utilizes
The dim signal that the break-make transmission of self adds,
Wherein, described power carrier signal and described additional dim signal are for controlling brightness and/or the colour temperature of LED.
13. LED switch panels according to claim 12, it is characterised in that knob be connected to the first adjusting means for
Changing regulation signal, button is connected to the second adjusting means for switching its on off operating mode.
14. LED switch panels according to claim 12, it is characterised in that also include:
Zero passage detection module, for detecting the zero-acrross ing moment of AC-input voltage, to produce zero passage detection signal；And
Time delay module, is connected with zero passage detection module, for producing enabling signal according to zero passage detection signal.
15. LED switch panels according to claim 12, it is characterised in that described installing plate also includes opening, is used for adopting
It is fixed on wall with screw.
16. LED switch panels according to claim 12, it is characterised in that the first adjusting means be selected from adjustable resistance,
Any one in switch and rotary coding switch.
17. LED switch panels according to claim 12, it is characterised in that the second adjusting means is switch.
18. 1 kinds of LED drive device, it is characterised in that including:
Rectifier bridge, is used for AC-input voltage rectification to obtain DC bus-bar voltage；
Power conversion module, for producing VD according to DC bus-bar voltage, thus powers for LED；
Decoupling module, for obtaining power carrier signal from DC bus-bar voltage, and decodes light modulation data signal；
Control module, for producing the first control signal according to light modulation data signal, thus regulates the output of power conversion module
Voltage and/or electric current；And
Enumerator, for obtaining additional dim signal according to DC bus-bar voltage, wherein, described additional dim signal is by opening
The break-make closed produces, and described enumerator counts according to described additional dim signal, to produce count value；
Mode register, for producing the second control signal according to count value,
Wherein, described LED drive device controls the brightness of LED according to described first control signal and described second control signal
And/or colour temperature.
19. LED drive device according to claim 18, it is characterised in that described power conversion module is inverse-excitation type merit
Rate changer.
20. LED drive device according to claim 18, it is characterised in that described decoupling module includes:
High pass filter, for obtaining high-frequency signal from DC bus-bar voltage；And
Comparator, is used for by described high-frequency signal compared with reference voltage, to produce described light modulation data signal.
21. LED drive device according to claim 18, it is characterised in that described enumerator is circulated counting, described
Mode register stored count value and the corresponding relation of the second control signal, thus, when count value varying cyclically, second controls
Signal the most correspondingly circulation change.
22. 1 kinds of LED light-dimming methods, including:
Produce enabling signal；
When enabling signal is effective, produce pulse signal according to the regulation signal of the first adjusting means；
AC-input voltage is superimposed with pulse signal, thus produce power carrier signal；And
Utilize the break-make of the second adjusting means self, thus produce additional dim signal,
Wherein, described power carrier signal and described additional dim signal are for controlling brightness and/or the colour temperature of LED.
23. methods according to claim 22, wherein, produce enabling signal and include:
The zero-acrross ing moment of detection AC-input voltage, to produce zero passage detection signal；And
Enabling signal is produced according to zero passage detection signal.
24. methods according to claim 23, wherein, the zero-acrross ing moment of detection AC-input voltage includes: detection is described
AC-input voltage from positive voltage value be changed into negative value and from negative value be changed to positive magnitude of voltage at least one
Zero-acrross ing moment.
25. methods according to claim 23, wherein, after zero-acrross ing moment, delay scheduled time, start letter by described
Number it is changed into effective status from disarmed state.
26. methods according to claim 23, wherein, the described scheduled time in the range of 4/16*T0～7/16*T0,
Wherein T0 is the cycle of AC-input voltage.
27. methods according to claim 26, wherein, substantially 3/8T0 of the described scheduled time.
28. methods according to claim 23, wherein, the level of described pulse signal characterizes digital value.
29. methods according to claim 23, wherein, by amplitude modulation, produce power carrier signal.
30. methods according to claim 23, also include:
Produce VD according to DC bus-bar voltage, thus power for LED；
Obtain power carrier signal from DC bus-bar voltage, and decode light modulation data signal；
Produce the first control signal according to light modulation data signal, thus regulate output voltage and/or the electric current of power conversion module；
And
Obtaining additional dim signal from DC bus-bar voltage, wherein, described additional dim signal is by switching on-off generation；
The second control signal is produced according to additional dim signal；And
Brightness and/or the colour temperature of LED is controlled according to described first control signal and described second control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586082.1A CN106061042B (en) | 2016-07-20 | 2016-07-20 | LED dimmer, LED light modulation panel, LED light-dimming method and LED drive device |
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| CN106061042B CN106061042B (en) | 2019-04-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110809896A (en) * | 2017-06-26 | 2020-02-18 | 赤多尼科两合股份有限公司 | Adapter and control method of adapter |
| CN116545475A (en) * | 2023-07-06 | 2023-08-04 | 北京煜邦电力技术股份有限公司 | Method and system for optimizing power carrier signal indicated by optical signal |
| CN116951360A (en) * | 2023-07-17 | 2023-10-27 | 中建三局集团华南有限公司 | Exhibition hall color temperature adjusting lamp and color temperature adjusting method |
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| CN102934522A (en) * | 2010-12-14 | 2013-02-13 | 株式会社Elm | Highly stable dimming device |
| CN205961510U (en) * | 2016-07-20 | 2017-02-15 | 杭州士兰微电子股份有限公司 | LED light modulator and LED drive arrangement |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102934522A (en) * | 2010-12-14 | 2013-02-13 | 株式会社Elm | Highly stable dimming device |
| CN205961510U (en) * | 2016-07-20 | 2017-02-15 | 杭州士兰微电子股份有限公司 | LED light modulator and LED drive arrangement |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110809896A (en) * | 2017-06-26 | 2020-02-18 | 赤多尼科两合股份有限公司 | Adapter and control method of adapter |
| CN110809896B (en) * | 2017-06-26 | 2022-09-02 | 赤多尼科两合股份有限公司 | Adapter and control method of adapter |
| CN116545475A (en) * | 2023-07-06 | 2023-08-04 | 北京煜邦电力技术股份有限公司 | Method and system for optimizing power carrier signal indicated by optical signal |
| CN116545475B (en) * | 2023-07-06 | 2023-09-08 | 北京煜邦电力技术股份有限公司 | Method and system for optimizing power carrier signal indicated by optical signal |
| CN116951360A (en) * | 2023-07-17 | 2023-10-27 | 中建三局集团华南有限公司 | Exhibition hall color temperature adjusting lamp and color temperature adjusting method |
| CN116951360B (en) * | 2023-07-17 | 2024-03-15 | 中建三局集团华南有限公司 | Exhibition hall color temperature adjusting lamp and color temperature adjusting method |
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| CN106061042B (en) | 2019-04-09 |
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