CN206024160U - LED dimmer, LED light modulation panels and LED light adjusting systems - Google Patents
LED dimmer, LED light modulation panels and LED light adjusting systems Download PDFInfo
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- CN206024160U CN206024160U CN201620770589.8U CN201620770589U CN206024160U CN 206024160 U CN206024160 U CN 206024160U CN 201620770589 U CN201620770589 U CN 201620770589U CN 206024160 U CN206024160 U CN 206024160U
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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]
Abstract
This application discloses LED dimmer, LED light modulation panels and LED light adjusting systems.The LED dimmer includes：Light modulation number generator, for producing pulse signal according to enabling signal；Adjusting means, is connected with light modulation number generator, and wherein, light modulation number generator produces pulse signal according to the Regulate signal of adjusting means to characterize light modulation data；Manipulator, is connected on main path and with light modulation number generator, for will be superimposed to the AC-input voltage transmitted on main path and pulse signal, so as to produce power carrier signal；And selecting switch, it is connected with manipulator, wherein, the main path is selectively connected to one of the first individual path and the second individual path by the selecting switch, wherein, the power carrier signal is used for controlling brightness and/or the colour temperature of LED, and the selecting switch is used for controlling lighting and extinguishing for LED.Due to including two kinds of adjusting meanss in a dimmer, thus brightness and/or the colour temperature of LED can be controlled, and control LED is lighted and extinguished, and circuit cost can be reduced and improve reliability.
Description
Technical field
This utility model is related to light source control technology, more particularly, to the LED dimmer for LED, LED light modulations
Panel and LED light adjusting systems.
Background technology
When light emitting diode (light-emitting diode, LED) is used for lighting field, using LED light modulating devices
Adjust brightness to meet the individual demand of user or according to the light modulation of environment needs with reducing energy consumption.Using LED light modulating devices
Brightness and the colour temperature of LED can be adjusted, to reach the demand of user.
LED light modulating devices are for example with traditional controllable silicon dimmer.However, controllable silicon dimmer is present maintains electric current one
The problem that cause property differs, and the product of every country, each brand there is also difference, asking for dimmer compatibility easily occurs
Topic.Additionally, there is also the phenomenons such as flicker in dimming process.Further improved LED light modulating devices adopt power modulus of conversion
Block provides VD, realizes light modulation by changing the electric current for flowing through LED.Power conversion module is adapted to wide scope
Supply voltage and stable electric current is provided, and intelligent dimming can be realized, be therefore widely used.
Fig. 1 illustrates the schematic block diagram of the LED light adjusting systems according to prior art.The LED light adjusting systems include dimmer
110th, 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 is connected to as the load of power conversion module
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.
The 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 light modulation data signal is decoded, control module 124 further produces control letter according to light modulation data signal
Number.Power conversion module 122 adjusts 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 the LED light adjusting systems, dimmer and LED drive device are connected in series, and using public phase line and zero
Line is powered and transmits power carrier signal.However, being difficult to meet user to many of LED using single adjusting means
Plant the demand of control.For example, the adjusting means of dimmer is adjusting means, for the brightness of indication LED lamp.If LED is also
Need to adjust colour temperature, then single adjusting means is difficult to while meeting two kinds of demands for control.
Therefore, existing LED dimmer is needed using multiple dimmers when two or more demands for control are realized.
However, causing the interference between circuit cost increase and multiple dimmers using multiple dimmers, cause less reliable.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of dimmer and LED drive device, wherein, at one
Include two kinds of adjusting meanss of adjusting means and selecting switch in dimmer, such that it is able to control brightness and/or the colour temperature of LED,
And control LED is lighted and extinguished, and circuit cost can be reduced and improve reliability.
According to one side of the present utility model, there is provided a kind of LED dimmer, it is characterised in that include：Light modulation data occur
Device, for producing pulse signal according to enabling signal；Adjusting means, is connected with light modulation number generator, wherein, dims data
Generator produces pulse signal according to the Regulate signal of adjusting means to characterize light modulation data；Manipulator, on main path and
It is connected with light modulation number generator, for will be superimposed to the AC-input voltage transmitted on main path and pulse signal, so as to
Produce power carrier signal；And selecting switch, it is connected with manipulator, wherein, the main path is selected by the selecting switch
First individual path and second individual path one of are connected to selecting property, and wherein, the power carrier signal is used for controlling LED
Brightness and/or colour temperature, the selecting switch is used for controlling lighting and extinguishing for LED.
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, the zero passage detection module is used for detecting that the AC-input voltage is changed into negative voltage from positive voltage value
Value and it is changed into the zero-acrross ing moment of at least one of positive voltage value from negative value.
Preferably, after zero-acrross ing moment, delay scheduled time, by the enabling signal from invalid shape for the time delay module
State is changed into effective status.
Preferably, wherein T0 is for AC-input voltage in the range of 4/16*T0～7/16*T0 the scheduled time
Cycle.
Preferably, the scheduled time substantially 3/8T0.
Preferably, the level of the pulse signal characterizes digital value.
Preferably, the manipulator carries out amplitude modulation.
Preferably, the adjusting means is any one in adjustable resistance, switch and rotary coding switch.
Preferably, selecting switch is single-pole double-throw switch (SPDT).
According to another aspect of the present utility model, there is provided a kind of LED light modulation panels, it is characterised in that include：LED is dimmed
The main circuit of device；Circuit box, for accommodating the main circuit of LED dimmer；Knob on front panel, and plate forward-mounted and
Button；Installing plate, for connecting front panel and permanent circuit box；And terminals, for connecting Alternating Current Power Supply line, wherein,
The main circuit of the LED dimmer includes：Light modulation number generator, for producing pulse signal according to enabling signal；Adjust dress
Put, be connected with light modulation number generator, wherein, light modulation number generator produces pulse letter according to the Regulate signal of adjusting means
Number with characterize light modulation data；Manipulator, is connected on main path and with light modulation number generator, for uploading main path
Defeated AC-input voltage is superimposed with pulse signal, so as to produce power carrier signal；And selecting switch, with manipulator phase
Connection, wherein, the selecting switch by the main path be selectively connected to the first individual path and the second individual path it
One, wherein, the power carrier signal is used for brightness and/or the colour temperature for controlling LED, and the selecting switch is used for controlling LED
Lamp is lighted and is extinguished.
Preferably, knob is connected to adjusting means for changing Regulate signal, and button is connected to selecting switch to be used 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, the installing plate also includes being open, for being fixed in wall using screw.
Preferably, adjusting means is any one in adjustable resistance, switch and rotary coding switch.
Preferably, selecting switch is single-pole double-throw switch (SPDT).
According to another aspect of the present utility model, there is provided a kind of LED light adjusting systems, it is characterised in that include：First light modulation
Device；Second dimmer；And LED drive device, wherein, first dimmer, second dimmer and the LED drive
Device is connected to each other via Alternating Current Power Supply line, and first dimmer and second dimmer include respectively：Light modulation data are sent out
Raw device, for producing pulse signal according to enabling signal；Adjusting means, is connected with light modulation number generator, wherein, dims number
Pulse signal is produced according to generator according to the Regulate signal of adjusting means to characterize light modulation data；Manipulator, on main path
And be connected with light modulation number generator, for will be superimposed to the AC-input voltage transmitted on main path and pulse signal, from
And produce power carrier signal；And selecting switch, it is connected with manipulator, wherein, the selecting switch is by the main path
One of the first individual path and the second individual path is selectively connected to, wherein, the selecting switch is used for controlling LED
Light and extinguish, the LED drive device is used for brightness and/or the colour temperature for controlling LED according to power carrier signal.
Preferably, first dimmer and second dimmer are respectively further comprised：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, the zero passage detection module is used for detecting that the AC-input voltage is changed into negative voltage from positive voltage value
Value and it is changed into the zero-acrross ing moment of at least one of positive voltage value from negative value.
Preferably, after zero-acrross ing moment, delay scheduled time, by the enabling signal from invalid shape for the time delay module
State is changed into effective status.
Preferably, the selecting switch includes that fixing end, first choice end and second select end, and wherein, described first adjusts
The fixing end of the selecting switch of light device is connected to the outfan of its manipulator, the fixing end of the selecting switch of second dimmer
It is connected to the input of its manipulator, the first choice end of the selecting switch of first dimmer and second dimmer
Connect between the first choice end of selecting switch, the first individual path of formation, and the selecting switch of first dimmer
Connect between second selection end of the second selecting switch for selecting end and second dimmer, form the second individual path.
Preferably, the LED light adjusting systems receive AC-input voltage via ac input end, first dimmer
Main path includes that from ac input end to the path between its manipulator the main path of second dimmer includes modulating from which
The outfan of device is to the path between LED.
According to the dimmer of this utility model embodiment, comprising two kinds of adjusting means and selecting switch in a dimmer
Adjusting means, dimmer transmit two kind different tune with the break-make of selecting switch to LED drive device using power carrier signal
Optical signal, such that it is able to control brightness and/or the colour temperature of LED, and control LED is lighted and is extinguished, and can be dropped
Low circuit cost and raising reliability.
Description of the drawings
By description referring to the drawings to this utility model embodiment, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 illustrates the schematic block diagram of the LED light adjusting systems according to prior art；
Fig. 2 illustrates the schematic block diagram of the LED light adjusting systems according to this utility model embodiment；
Fig. 3 a and 3b illustrate the structural representation of the LED light modulation panels according to this utility model embodiment.
Specific embodiment
This utility model is more fully described hereinafter with reference to accompanying drawing.In various figures, identical element is using similar
Reference representing.For the sake of clarity, the various pieces in accompanying drawing are not necessarily to scale.Furthermore, it is possible to not shown
Part known to some.
Describe hereinafter many specific details of the present utility model, the structure of such as device, material, size, place
Science and engineering skill and technology, to be more clearly understood that this utility model.But just as the skilled person will understand,
This utility model can not be realized according to these specific details.
This utility model can be presented in a variety of manners, some of them example explained below.
Fig. 2 illustrates the schematic block diagram of the LED light adjusting systems according to this utility model embodiment.
The LED light adjusting systems include the first dimmer 210, the second dimmer 310, LED drive device 220 and LED
230.First dimmer 210, the second dimmer 310 are carried for producing electric power according to the operation of user respectively as master controller
Ripple signal, LED drive device 220 as from controller, for being supplied to the straight of LED 230 according to power carrier signal control
Stream output voltage.
The ac input end of the LED light adjusting systems receives AC-input voltage.
First dimmer 210, the second dimmer 310 and LED drive device 220 are connected to each other via Alternating Current Power Supply line.Example
Such as, the first dimmer 210 is connected to the phase line of utility grid via ac input end.The first input end of LED drive device 220
The second dimmer 310 is connected to, the second input is connected to the zero line of utility grid via ac input end.230 conduct of LED
The load of power conversion module, is connected between the first outfan of LED drive device 220 and the second outfan.
Different from the LED light adjusting systems of the prior art shown in Fig. 1, according to the LED of this utility model embodiment light modulations system
The first dimmer 210, the second dimmer 310 in system in each half power frequency period is carried out impulse modulation to produce power carrier
Signal.For this purpose, the first dimmer 210 includes zero passage detection module 211, time delay module 212, light modulation number generator 213 and adjusts
Device processed 214, and adjusting means S1 and selecting switch K1, the second dimmer 310 include zero passage detection module 311, time delay module
312nd, light modulation number generator 313 and manipulator 314, and adjusting means S2 and selecting switch K2.
Due to the first dimmer 210 similar with the function of the circuit module of the second dimmer 310, therefore, below only with
First dimmer 210 illustrates the working method of dimmer.
The input of the first dimmer 210 is connected to phase line, and outfan is connected to LED drive device 220, such that it is able to pass through
Data signal is dimmed by power line transmission.First dimmer 210 receives AC-input voltage, the frequency example of the AC-input voltage
50Hz (0.02 second cycle) or 60Hz (0.017 second) in this way, corresponding cycle are T0.
Zero passage detection module 211 is detected from negative value to positive voltage value or from positive voltage for AC-input voltage
It is worth to the zero-acrross ing moment t0 of negative value, and produces zero passage detection signal.
Time delay module 212 receives zero passage detection signal and produces enabling signal.Postpone pre- timing after zero-acrross ing moment
Between Δ t.After each half power frequency period, moment after the peak value or valley of AC-input voltage, enabling signal is from invalid
State is transformed into effective status.For example, scheduled time Δ t is 4/16*T0～7/16*T0.Preferably, the moment is located at exchange
Near the position of the sinusoidal wave form halfwidth of input voltage, correspondingly, 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 is provided
Pulse signal.The level of the pulse signal characterizes digital value, and such as high level is characterized digital " 1 ", and low level characterizes digital " 0 ".
Adjusting means S1 is connected with light modulation number generator 213, dims tune of the number generator 213 according to adjusting means
Section signal produces pulse signal to characterize light modulation data.For example, user changes the resistance value of adjusting means S1 using knob.Accordingly
Ground, the light modulation data that continuous pulse signal is characterized also change.
Manipulator 214 is superimposed with AC-input voltage by pulse signal, so as to produce power carrier signal.The electric power is carried
Ripple signal is, for example, the sine wave of amplitude modulation in each half work cycle.
Selecting switch K1 is connected between the manipulator 214 and its outfan of the first dimmer 210.Selecting switch K1 includes
Fixing end, first choice end and second select end.Selecting switch K1 by main path be selectively connected to the first individual path and
One of second individual path.
First dimmer 210 is similar with the function of the circuit module of the second dimmer 310, the difference is that only, selects
Switch K2 is connected between the input and its manipulator 314 of the second dimmer 310.
The main path of the first dimmer 210 include from ac input end to the input of its manipulator 214 between path.
The main path of the second dimmer 310 is included from the outfan of its manipulator 314 to the path between LED.First dimmer 210
Selecting switch K1 first choice end and the second dimmer 310 selecting switch K2 first choice end between connect, formed
First individual path, the second selection end of selecting switch K1 of the first dimmer 210 and selecting switch K2 of the second dimmer 310
Second selection end between connect, formed the second individual path.
Identical one in the first individual path and the second individual path is switched in selecting switch K1 and selecting switch K2
During individual path, Alternating Current Power Supply line is connected.The first individual path and second point are switched in selecting switch K1 and selecting switch K2
In branch path during different individual paths, Alternating Current Power Supply line disconnects.
In the case of Alternating Current Power Supply line is connected, LED drive device 220 is connected with utility grid, the first dimmer 210
Power carrier signal can be transmitted respectively to LED drive device 220 with the second dimmer 310.Therefore, 210 He of the first dimmer
Any one in second dimmer 310 can adjust LED.In the case of Alternating Current Power Supply line disconnects, LED drive device 220
Separated with utility grid.Therefore, selecting switch K1 and K2 be by selecting individual path, control Alternating Current Power Supply line connection and
Disconnect, so as to control lighting and extinguishing for LED.
LED drive device 220 includes rectifier bridge 211, power conversion module 222, decoupling module 223 and control module 224.
Rectifier bridge 211 is, for example, full bridge rectifier, obtains AC-input voltage from utility grid, obtains through over commutation straight
Stream busbar voltage.The DC bus-bar voltage is, for example, the DC pulse moving voltage of half power frequency period.Power conversion module 222 is for example
It is the inverse-excitation type comprising main switch (FLY-BACK) power inverter, DC bus-bar voltage is converted further into direct current output
Voltage.
Decoupling module 223 for example includes high pass filter and comparator.High pass filter obtains height from DC bus-bar voltage
Frequency signal.The high-frequency signal is compared by comparator with reference voltage, to produce the light modulation data signal.Control module
224 further produce control signal, such as pulse-width signal according to light modulation data signal.Power conversion module 222 is in control
Output voltage and/or electric current is adjusted under the control of signal, for example, be used for the brightness for adjusting LED.
Due to the change of the output voltage and/or electric current of power conversion module 222, the brightness of LED, color become
Change, so as to realize dimming.
According to the LED light adjusting systems of this utility model embodiment, in each half power frequency period, produced using impulse modulation
Power carrier signal, in continuously multiple half power frequency periods, transmission light modulation data signal.First dimmer 210 and second is adjusted
Light device 310 is using zero passage detection module and time delay module, you can to realize the modulation control of power carrier signal.Therefore, first
, without the need for adopting special power line carrier, PLC chip, for example, low voltage power line carrier leads to for dimmer 210 and the second dimmer 310
Letter 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, you can to realize power carrier
The uneoupled control of signal.Therefore, LED drive device 220 dims data signal without the need for parsing using complicated data resolution module,
Such that it is able to reduce circuit cost.
Further, two kinds of adjusting meanss of adjusting means and selecting switch are included in a dimmer, dimmer is distinguished
Two kind different dim signals are transmitted with the break-make of selecting switch to LED drive device using power carrier signal, such that it is able to
The brightness of control LED and/or colour temperature, and control LED lights and extinguishes, and circuit cost and raising can be reduced
Reliability.
Additional logic control can be set in LED drive device 220 so that adjusted in the first dimmer 210 and second
During 310 simultaneous transmission power carrier signal of light device, keep the state of LED constant.
For example, the diverse location in room arranges the first dimmer 210 and the second dimmer 310, the first dimmer 210
The enter position in bedroom is such as arranged on, and the second dimmer 310 is for example arranged on the bedside locations in bedroom.By selecting switch K1 and
The break-make control of K2, any one in the first dimmer 210 and the second dimmer 310 can control lighting and extinguishing for LED.Logical
The regulation of toning regulating device S1 and S2, any one in the first dimmer 210 and the second dimmer 310 can control the bright of LED
Degree and/or colour temperature.
In the above-described embodiment, describe dimmer and dim signal is produced using adjusting means.In alternative embodiment
In, rotary coding switch can be adopted to substitute adjusting means.The rotary coding switch is using more inside knob and selecting switch
The contact of individual contact produces the pulse signal of strict sequential order.
Fig. 3 a and 3b illustrate the structural representation of the LED light modulation panels according to this utility model embodiment.The LED light modulations face
The form of plate e.g. switch panel, Fig. 3 a illustrate that the axonometric chart of switch panel when observing from front, Fig. 3 b are illustrated from dorsal view
The axonometric chart of switch panel when examining.
Due to the first dimmer 210 similar with the function of the circuit module of the second dimmer 310, therefore, below only with
First dimmer 210 illustrates the structure of light modulator panel.
As shown in Figure 3 a, LED light modulation panels include knob 201, button 202 and front panel 203.Knob 201 and button
On 202 plates forward-mounted 203.Knob 201 is connected to adjusting means S1 to be used for changing its resistance value.Button 202 is connected to choosing
Selecting switch K1 is used for switching its on off operating mode.
As shown in Figure 3 b, LED light modulation panels include installing plate 204, circuit box 205 and terminals 206.Installing plate 204 is used
In connection front panel 203, and it is used for permanent circuit box 205.Installing plate 204 also includes being open, for being consolidated using screw
It is scheduled on wall.Circuit box 205 is used for the main circuit for accommodating the first dimmer 210 as shown in Figure 2.206 points of two terminals
It is not the input and outfan of the first dimmer 210.For being connected to Alternating Current Power Supply line.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or deposit between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that a series of process, method, article or equipment including key elements not only includes that those will
Element, but also other key elements including being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
According to embodiment of the present utility model as described above, these embodiments do not have all of details of detailed descriptionthe,
Also it is only described specific embodiment not limit the utility model.Obviously, as described above, a lot of modifications and change can be made
Change.This specification is chosen and specifically describes these embodiments, be in order to preferably explain principle of the present utility model and actual should
With so that skilled artisan can repairing using this utility model and on the basis of this utility model well
Change use.This utility model is only limited by claims and its four corner and equivalent.
Claims (22)
1. a kind of LED dimmer, it is characterised in that include：
Light modulation number generator, for producing pulse signal according to enabling signal；
Adjusting means, is connected with light modulation number generator, wherein, dims Regulate signal of the number generator according to adjusting means
Produce pulse signal to characterize light modulation data；
Manipulator, is connected on main path and with light modulation number generator, for the exchange that transmits on main path to be input into
Voltage is superimposed with pulse signal, so as to produce power carrier signal；And
Selecting switch, is connected with manipulator, and wherein, the main path is selectively connected to first point by the selecting switch
One of branch path and the second individual path,
Wherein, the power carrier signal is used for brightness and/or the colour temperature for controlling LED, and the selecting switch is used for controlling LED
Lamp is lighted and is extinguished.
2. LED dimmer 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.
3. LED dimmer according to claim 2, it is characterised in that the zero passage detection module is used for detecting the friendship
Stream input voltage is changed into negative value from positive voltage value and is changed into the mistake of at least one of positive voltage value from negative value
Zero moment.
4. LED dimmer according to claim 2, it is characterised in that the time delay module postpones after zero-acrross ing moment
The scheduled time, the enabling signal is changed into effective status from disarmed state.
5. LED dimmer according to claim 4, it is characterised in that the scheduled time is in 4/16*T0～7/16*T0
In the range of, cycles of the wherein T0 for AC-input voltage.
6. LED dimmer according to claim 5, it is characterised in that the scheduled time substantially 3/8T0.
7. LED dimmer according to claim 1, it is characterised in that the level of the pulse signal characterizes digital value.
8. LED dimmer according to claim 1, it is characterised in that the manipulator carries out amplitude modulation.
9. LED dimmer according to claim 1, it is characterised in that the adjusting means is selected from adjustable resistance, switch
With any one in rotary coding switch.
10. LED dimmer according to claim 1, it is characterised in that selecting switch is single-pole double-throw switch (SPDT).
11. a kind of LED light modulation panels, it is characterised in that include：
The main circuit of LED dimmer；
Circuit box, for accommodating the main circuit of LED dimmer；
Knob and button on front panel, and plate forward-mounted；
Installing plate, for connecting front panel and permanent circuit box；And
Terminals, for connecting Alternating Current Power Supply line,
Wherein, the main circuit of the LED dimmer includes：
Light modulation number generator, for producing pulse signal according to enabling signal；
Adjusting means, is connected with light modulation number generator, wherein, dims Regulate signal of the number generator according to adjusting means
Produce pulse signal to characterize light modulation data；
Manipulator, is connected on main path and with light modulation number generator, for the exchange that transmits on main path to be input into
Voltage is superimposed with pulse signal, so as to produce power carrier signal；And
Selecting switch, is connected with manipulator, and wherein, the main path is selectively connected to first point by the selecting switch
One of branch path and the second individual path,
Wherein, the power carrier signal is used for brightness and/or the colour temperature for controlling LED, and the selecting switch is used for controlling LED
Lamp is lighted and is extinguished.
12. LED light modulation panels according to claim 11, it is characterised in that knob is connected to adjusting means to be used for changing
Regulate signal, button is connected to selecting switch to be used for switching its on off operating mode.
13. LED light modulation panels according to claim 11, 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.
14. LED light modulation panels according to claim 11, it is characterised in that the installing plate also includes being open, for adopting
It is fixed on wall with screw.
15. LED light modulation panels according to claim 11, it is characterised in that adjusting means is selected from adjustable resistance, switch
With any one in rotary coding switch.
16. LED light modulation panels according to claim 11, it is characterised in that selecting switch is single-pole double-throw switch (SPDT).
17. a kind of LED light adjusting systems, it is characterised in that include：
First dimmer；
Second dimmer；And
LED drive device,
Wherein, first dimmer, second dimmer and the LED drive device connect each other via Alternating Current Power Supply line
Connect,
First dimmer and second dimmer include respectively：
Light modulation number generator, for producing pulse signal according to enabling signal；
Adjusting means, is connected with light modulation number generator, wherein, dims Regulate signal of the number generator according to adjusting means
Produce pulse signal to characterize light modulation data；
Manipulator, is connected on main path and with light modulation number generator, for the exchange that transmits on main path to be input into
Voltage is superimposed with pulse signal, so as to produce power carrier signal；And
Selecting switch, is connected with manipulator, and wherein, the main path is selectively connected to first point by the selecting switch
One of branch path and the second individual path,
Wherein, the selecting switch is used for controlling lighting and extinguishing for LED,
The LED drive device is used for brightness and/or the colour temperature for controlling LED according to power carrier signal.
18. LED light adjusting systems according to claim 17, it is characterised in that first dimmer and described second is adjusted
Light device is respectively further comprised：
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.
19. LED light adjusting systems according to claim 18, it is characterised in that the zero passage detection module is used for detecting institute
State AC-input voltage to be changed into negative value from positive voltage value and be changed at least one of positive voltage value from negative value
Zero-acrross ing moment.
20. LED light adjusting systems according to claim 18, it is characterised in that the time delay module after zero-acrross ing moment,
The enabling signal is changed into effective status from disarmed state by delay scheduled time.
21. LED light adjusting systems according to claim 18, it is characterised in that
The selecting switch includes that fixing end, first choice end and second select end,
Wherein, the fixing end of the selecting switch of first dimmer is connected to the outfan of its manipulator,
The fixing end of the selecting switch of second dimmer is connected to the input of its manipulator,
The first choice of the first choice end of the selecting switch of first dimmer and the selecting switch of second dimmer
Connect between end, form the first individual path, and
Second selection end of the selecting switch of first dimmer is selected with the second of the selecting switch of second dimmer
Connect between end, form the second individual path.
22. LED light adjusting systems according to claim 18, it is characterised in that
The LED light adjusting systems receive AC-input voltage via ac input end,
The main path of first dimmer includes from ac input end to the path between its manipulator,
The main path of second dimmer is included from the outfan of its manipulator to the path between LED.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586988A (en) * | 2021-07-16 | 2021-11-02 | 浙江双宇电子科技有限公司 | AC two-wire LED high-voltage lamp string capable of synchronously dimming and toning |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586988A (en) * | 2021-07-16 | 2021-11-02 | 浙江双宇电子科技有限公司 | AC two-wire LED high-voltage lamp string capable of synchronously dimming and toning |
| CN113586988B (en) * | 2021-07-16 | 2023-08-04 | 浙江双宇电子科技有限公司 | AC two-wire LED high-voltage lamp string capable of synchronous dimming and color mixing |
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