CN108650733A - A kind of circuit of the multiple LED light brightness of list firewire far distance controlled - Google Patents
A kind of circuit of the multiple LED light brightness of list firewire far distance controlled Download PDFInfo
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- CN108650733A CN108650733A CN201810456191.0A CN201810456191A CN108650733A CN 108650733 A CN108650733 A CN 108650733A CN 201810456191 A CN201810456191 A CN 201810456191A CN 108650733 A CN108650733 A CN 108650733A
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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
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- 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
A kind of circuit of the multiple LED light brightness of list firewire far distance controlled is adjusted driving unit and is formed, the brightness of multiple LED light can be adjusted with independent control by wall control switch unit, multiple LED light.Wall control switch unit includes single fire-wire power module, single chip control module, phase shift drive module, zero passage detection module, the given module of brightness, and it includes microcontroller adjustment module, LED drive module that LED light, which adjusts driving unit,.When thering is the brightness of LED light to change, wall control switch unit by control the voltage waveform of single fire wire output end output send by guiding waveform, address waveform and data sets of waveforms at brightness control signal, LED light adjusts driving unit and receives brightness control signal by microcontroller adjustment module and control LED light brightness.The LED light light-dimming method is not necessarily to remote controler, and without power cord is laid again, the replacement upgrading and transformation of general lighting lamp may be implemented.
Description
Present patent application is divisional application, and application No. is 201510229297.3, the applying date is on May 8th, 2015 for original bill,
A kind of circuit of the multiple LED light brightness of entitled single firewire far distance controlled.
Technical field
The present invention relates to a kind of lighting lamp control technology, the especially multiple LED light brightness of a kind of single firewire far distance controlled
Circuit.
Background technology
Due to the nonlinear characteristic of LED light, the brightness of LED light cannot be realized by the way of adjusting voltage.
When using brightness of the controllable constant-current source to adjust LED light, the change of operating current can bring the chromatography of LED light inclined
It moves, meanwhile, LED light load current also becomes very low under low-light level, and the reduction of controllable constant-current source efficiency and Wen Sheng can be made to increase, be lost
Power consumption on driving chip is bigger, to damage the service life of constant-current source and LED light source.
LED light brightness is controlled using PWM (pulsewidth modulation) dimming mode, to avoid voltage regulating mode and current system band can be adjusted
The problem come.There are three types of currently used LED light light-dimming methods：
First, using remote control control.LED light control circuit is equipped with remote controler reception device, can be by remote controler to LED light
It has carried out grade light modulation either stepless dimming and has caused remote controler quantity the disadvantage is that a LED light needs to be equipped with a remote controler
More, management bothers, and cost is also higher.
Second is that using digital control technology.For example, using DALI (lighting interface of digital address) technology, DALI systems
Software can be separately addressed to the single or multiple LED lamps on same forceful electric power circuit or different circuit, pass through DALI systems
Software accurately dim and switch controlling to single lamp or arbitrary lamp group.The program is technologically advanced, but cost is very high, system
In addition to needing to lay power line, it is also necessary to lay control line.
Third, using single firewire switch on and off control technology.For example, using NU102 special chips, you can utilize common wall
The switch motion of face switch before the deadline, realizes the brightness regulation of LED light.But this method can only provide 4 grades of LED light
Adjust brightness, and the requirement of switch motion having time.
Invention content
The purpose of the present invention is intended to provide one kind in the case where not changing existing illuminating line wiring, utilizes single firewire pair
The circuit that multiple LED light are dimmed.
In order to achieve the above objectives, the technical solution adopted by the present invention is that：A kind of multiple LED light of list firewire far distance controlled are bright
The circuit of degree, the wall control switch unit for being adjusted driving unit by K LED light and being connected on single firewire form, and control K LED
The brightness of lamp, K are to be less than or equal to 9 integer more than or equal to 1；The wall control switch unit is equipped with single firewire input terminal, single firewire
Output end；The list firewire input terminal is connected to AC power firewire；The LED light adjusts driving unit and is inputted equipped with firewire
End, zero curve input terminal；The firewire input terminal that the K LED light adjusts driving unit is connected to the single fiery of wall control switch unit
Line output terminal, zero curve input terminal are connected to AC power zero curve.
The wall control switch unit is by single fire-wire power module, single chip control module, phase shift drive module, zero passage detection
Module, brightness give module composition.
The list fire-wire power module has single firewire OFF state current-taking function and ON state current-taking function, for being switched to wall control
Unit provides working power.
The zero passage detection module exports the mistake of the AC power when bidirectional thyristor turns off in phase shift drive module
Zero-signal, and it is supplied to single chip control module.
The brightness gives module and is capable of providing K brightness Setting signal to single chip control module.
The phase shift drive module is that bidirectional thyristor exchanges phase-shift circuit.
The single chip control module sends out trigger signal and controls phase shift drive module to K according to brightness Setting signal
LED light adjusts driving unit power supply, and adjusts and drive to K LED light to the voltage waveform exported by the single fire wire output end of control
Moving cell sends out brightness control signal.
The brightness control signal by guiding waveform, address waveform and data sets of waveforms at；Address waveform is by a cycle
Phase shift waveform composition, bear half-wave be phase shifting angle γ1, positive half-wave is phase shifting angle γ0；Data waveform by a cycle phase shift wave
Shape forms, and it is phase shifting angle β to bear half-wave1, positive half-wave is phase shifting angle β0。
It is random to stop trigger signal output when single chip control module sends out brightness control signal；It is triggered when stopping output
When at the time of signal during AC power positive half-wave, the bidirectional thyristor in phase shift drive module is in next AC power
Negative half-wave is not turned on, and zero passage detection module bears half-wave in next AC power and exports zero cross signal, and zero cross signal is to correspond to
The AC power being not turned on bears the positive pulse of half-wave；At the time of stopping trigger signal output during AC power bears half-wave
When, it is equal that bidirectional thyristor in phase shift drive module in next AC power positive half-wave and next AC power bears half-wave
It is not turned on, zero passage detection module does not export zero cross signal in the AC power positive half-wave being not turned on, in next AC power
Negative half-wave exports zero cross signal, and zero cross signal is the positive pulse that corresponding next AC power bears half-wave；Just by zero cross signal
Pulse falling edge is phase shifting angle γ as zero passage time zero, after 10ms1Zero crossing, be phase shifting angle γ after 20ms0Zero passage
Point is phase shifting angle β after 30ms1Zero crossing, be phase shifting angle β after 40ms0Zero crossing.
Described address waveform indicates that LED light adjusts the address code of driving unit, and the data waveform indicates the brightness of LED light
Grade.
The zero passage detection module is halfwave rectifier bleeder circuit, by diode D2, resistance R4, resistance R5, voltage-stabiliser tube DW1
Composition.
The phase shift drive module is made of bidirectional thyristor, silicon-controlled output optocoupler, resistance R1, resistance R2, resistance R3.
The list fire-wire power module include single firewire voltage-stablizer and its peripheral cell diode D1, capacitance C1, capacitance C2,
Inductance L1, inductance L2, low-dropout regulator.
The list firewire input terminal is the simulation of wall control switch unit, and the alternating voltage for being connected to single firewire voltage-stablizer is public
End altogether；The both ends of capacitance C1 are respectively connected to filter capacitor input terminal and the alternating voltage common end of single firewire voltage-stablizer；Dan Huo
Digitally for wall control switch unit, the both ends of inductance L2 are respectively connected to wall control and open the DC output voltage ground terminal of line voltage-stablizer
Close unit digitally with simulation ground；Diode D1, inductance L1 and capacitance C2 form halfwave rectifier filter circuit, halfwave rectifier filter
The input of wave circuit is connected to single fire wire output end, output is connected to the high direct voltage input terminal of single firewire voltage-stablizer；It is described low
The input terminal of pressure difference voltage-stablizer is connected to the DC voltage output end of single firewire voltage-stablizer, and output end exports DC supply.
Two anode taps of the bidirectional thyristor are respectively connected to the alternating current pressure side of single fire wire output end and single firewire voltage-stablizer；Electricity
Resistance R1 is connected in parallel on two anode taps of bidirectional thyristor V1；The output of silicon-controlled output optocoupler is silicon-controlled to connect with resistance R2,
Series arm is connected to the first anode and control pole of bidirectional thyristor；The input light emitting diode and electricity of silicon-controlled output optocoupler
R3 series connection is hindered, series arm one end is connected to DC supply, and other end is trigger signal input terminal.The zero passage inspection
Module is surveyed to be made of diode D2, resistance R4, resistance R5, voltage-stabiliser tube DW1；The both ends of the resistance R4 are respectively connected to diode
D2 cathodes and voltage-stabiliser tube DW1 cathodes；Diode D2 anodes are connected to single fire wire output end；Voltage-stabiliser tube DW1 anodes are connected to wall control
The simulation of switch unit；Resistance R5 is connected in parallel on the both ends voltage-stabiliser tube DW1；Zero cross signal is exported from voltage-stabiliser tube DW1 cathodes.
The LED light adjusts driving unit and is made of microcontroller adjustment module, LED drive module；The LED light, which is adjusted, drives
Moving cell can carry out address code setting；The LED drive module is equipped with ac input end and LED light drives end, wherein exchange
Input terminal is connected to the firewire input terminal and zero curve input terminal that LED light adjusts driving unit, and LED light driving end is connected to LED light；
The LED drive module is additionally provided with PWM brightness regulated signal input terminals.
The microcontroller adjustment module includes to adjust microcontroller, positive half-wave rectification shaping circuit, negative halfwave rectifier shaping
Circuit and regulator rectifier circuit are equipped with ac input end, PWM brightness regulated signal output ends；The ac input end is connected to
LED light adjusts the firewire input terminal and zero curve input terminal of driving unit, and PWM brightness regulated signal output ends are connected to LED drivings
The PWM brightness regulated signal input terminals of module；The positive half-wave rectification shaping circuit and negative halfwave rectifier shaping circuit are right respectively
The alternating voltage of firewire input terminal input carries out positive half-wave rectification shaping and negative halfwave rectifier shaping；The positive half-wave rectification shaping
The output for exporting, bearing halfwave rectifier shaping circuit of circuit is respectively connected to adjust the different pulse capture input terminal of microcontroller；
The LED light adjusts driving unit and receives brightness control signal by microcontroller adjustment module and control brightness.
The brightness gives module and is made of K BCD rotary encoder.
The AC power is single-phase 220V alternating currents.
The model MP-6V-02S of the list firewire voltage-stablizer；The model MOC3053 of the silicon-controlled output optocoupler；
The single chip control module includes control single chip computer, control single chip computer model MSP430G2553.
It is connected on single firewire, can generate and sends out by different phase shifts the invention has the advantages that providing one kind
It is angle waveform composition, that multiple LED light brightness can be controlled respectively, there is brightness degree brightness control signal and can realize list
Fire-wire electronic switch is turned off the light the wall control switch unit of function, while being additionally provided and being carried out zero cross signal detection and really on single firewire
Determine the method for zero crossing.Wall control switch unit controls multiple LED light brightness using single firewire mode, is not necessarily to remote controler, without control
The replacement upgrading and transformation of general lighting lamp may be implemented without power cord is laid again in line processed；LED light brightness regulation is total
Divide 9 grades, is adjusted using knob assembly, meet operating habit；Brightness control signal on single firewire is only when changing brightness
It is sent in short-term, when not sending out brightness control signal, the voltage waveform of single fire wire output end output is continuous whole single-phase
Sine wave, without harmonic wave.
Description of the drawings
Fig. 1 is system embodiment structure diagram.
Fig. 2 is wall control switch unit example structure figure.
Fig. 3 is wall control switch unit embodiment circuit diagram.
Fig. 4 is the corresponding angles the α schematic diagram of ternary.
Fig. 5 is the waveform example Fig. 1 for sending a brightness control signal.
Fig. 6 is the waveform example Fig. 2 for sending a brightness control signal.
Fig. 7 is brightness control signal sending control method.
Fig. 8 is that LED light adjusts structure of driving unit figure.
Fig. 9 is microcontroller adjustment module embodiment circuit diagram.
Figure 10 is LED drive module embodiment circuit diagram.
Figure 11 is that brightness controls to adjust method.
Specific implementation mode
The present invention is described in further detail below by attached drawing and in conjunction with the embodiments, but embodiments of the present invention
It is without being limited thereto.
Circuit of the present invention adjusts driving unit by wall control switch unit and multiple LED light and forms.Wall control switch unit list fire
Line AC is into single firewire AC1 goes out.After multiple LED light adjust driving unit parallel connection, firewire AC1 is into zero curve N goes out.There are 4 LED light tune
The example structure of driving unit is saved as shown in Figure 1, it is respectively that 1-4#LED lamps adjust driving that 4 LED light, which adjust driving unit,
Unit controls to adjust the brightness of 4 LED light respectively；Driving unit is adjusted if necessary to increase LED light, increased LED light is adjusted
Driving unit is in parallel with 1-4#LED lamps adjusting driving unit.
Wall control switch unit example structure is as shown in Fig. 2, by single fire-wire power module, single chip control module, phase shift
Drive module, zero passage detection module, brightness give module composition.Single fire-wire power module has single firewire OFF state current-taking function,
Also there is ON state current-taking function, for providing working power to wall control switch unit.
The AC power zero cross signal of zero passage detection module detection is fed to single chip control module, and brightness gives module and carries
For all LED light brightness Setting signal to single chip control module.Single chip control module is according to brightness Setting signal, control
Phase shift drive module adjusts driving unit power supply to all LED light, and adjusts driving unit to all LED light and send out brightness control
Signal.
The embodiment circuit for the wall control switch unit that 4 LED light of control adjust driving unit is as shown in Figure 3.
Single fire-wire power module is by single firewire voltage-stablizer U1 and its peripheral cell diode D1, capacitance C1, capacitance C2, inductance
L1, inductance L2 and low-dropout regulator U2 and its peripheral cell capacitance C3, capacitance C4 compositions.The type of single firewire voltage-stablizer U1
Number be MP-6V-02S, the model HT7333 of low-dropout regulator U2.
Single firewire input terminal AC is the simulation of wall control switch unit, and the alternating voltage for being connected to single firewire voltage-stablizer U1 is public
COM is held altogether；The both ends of capacitance C1 be respectively connected to single firewire voltage-stablizer U1 filter capacitor input terminal FIL and alternating voltage it is public
Hold COM；The DC output voltage of single firewire voltage-stablizer U1 the ends GND be wall control switch unit digitally, the both ends of inductance L2
Be respectively connected to wall control switch unit digitally with simulation ground；Diode D1, inductance L1 and capacitance C2 composition halfwave rectifier filters
Wave circuit, the input of halfwave rectifier filter circuit is connected to single fire wire output end AC1, output is connected to single firewire voltage-stablizer U1's
High direct voltage input terminal HDC.Single firewire voltage-stablizer U1 is additionally provided with DC voltage output end VCC, alternating current pressure side AC.
The input terminal VIN of low-dropout regulator U2 is connected to the DC voltage output end VCC of single firewire voltage-stablizer U1, output
Hold the DC supply VDD of VOUT outputs+3.3V；The ground terminal GND of single firewire voltage-stablizer U1 is connected to wall control switch unit
Digitally；Capacitance C3, capacitance C4 are respectively the input voltage of low-dropout regulator U2, output voltage filter capacitor.
Phase shift drive module be bidirectional thyristor exchange phase-shift circuit, by bidirectional thyristor V1, silicon-controlled output optocoupler U3,
Resistance R1, resistance R2, resistance R3 compositions, the model MOC3053 of silicon-controlled output optocoupler U3.Two sun of bidirectional thyristor V1
Extremely it is respectively connected to the alternating current pressure side AC of single fire wire output end AC1 and single firewire voltage-stablizer U1；Resistance R1 is connected in parallel on two-way
Two anode taps of thyristor V1；The output of silicon-controlled output optocoupler U3 is silicon-controlled to connect with resistance R2, series arm connection
To the first anode and control pole of bidirectional thyristor V1；The input light emitting diode of silicon-controlled output optocoupler U3 is gone here and there with resistance R3
Connection, series arm one end are connected to DC supply VDD, and other end is trigger signal input terminal.
Zero passage detection module is halfwave rectifier bleeder circuit, by diode D2, resistance R4, resistance R5, voltage-stabiliser tube DW1 groups
At.The both ends of resistance R4 are respectively connected to diode D2 cathodes and voltage-stabiliser tube DW1 cathodes；Diode D2 anodes are connected to single firewire
Output terminals A C1；Voltage-stabiliser tube DW1 anodes are with being connected to the simulation of wall control switch unit；Resistance R5 is connected in parallel on the both ends voltage-stabiliser tube DW1.
Zero cross signal is exported from voltage-stabiliser tube DW1 cathodes.
The brightness of embodiment gives module and is capable of providing 4 brightness Setting signals to single chip control module, controls 4
The brightness of LED light.The brightness of embodiment gives module and is made of 4 BCD rotary encoders SW1-SW4, controls 1-4# respectively
The brightness of LED light.The BCD codings of BCD rotary encoders output are 0000-1001, wherein BCD encodes 0001-1001 and represents
Brightness 1-9 when BCD is encoded to 0000, represents brightness 1.It is connected after the BCD coding output end parallel connections of 4 BCD rotary encoders
To the coding input end of single chip control module；The common end of each BCD rotary encoders is connected to single chip control module
Coding input control terminal.In Fig. 3, the output of 4 BCD rotary encoders SW1-SW4 is respectively 1,6,7,4, respectively represents brightness
1, brightness 6, brightness 7, brightness 4.
Brightness is given module and can also be divided to DC supply VDD using multiple potentiometers, and output area exists
The brightness given voltage of 0-3.3V.The brightness given voltage of the 0-3.3V of potentiometer output is divided into 10 sections, most
It is corresponding with the coding of BCD rotary encoders 0000 between low-voltage area, the coding 1001 in ceiling voltage section and BCD rotary encoders
It is corresponding.
Single chip control module includes control single chip computer U4, crystal oscillator XT1.The model of control single chip computer U4 is
MSP430G2553.Zero cross signal is inputted from the P2.0 of control single chip computer U4, and the P1.0 of trigger signal from control single chip computer U4 are defeated
Go out, coding input end is P2.4-P2.1, and coding input control terminal includes 4 control terminal P1.4-P1.1, controls 4 respectively
The BCD coding inputs of BCD rotary encoders SW1-SW4.
Potentiometer, the output voltage of 4 potentiometers is used to be connected to the 4 of control single chip computer U4 if brightness gives module
A analog voltage input.
Single chip control module effectively, sequentially inputs 4 per 1 in secondary control coding input control terminal P1.4-P1.1
The BCD of BCD rotary encoders SW1-SW4 is encoded and is read from coding input end P2.4-P2.1.In embodiment illustrated in fig. 3, compile
Code input control end P1.4-P1.1 is that low level is effective, for example, control P1.1 is low level, P1.4-P1.2 is high level,
What is then inputted from coding input end P2.4-P2.1 is the BCD codings of BCD rotary encoders SW1, and what is accordingly read is 1#LED lamps
Brightness Setting signal.
If brightness gives module and uses potentiometer, respectively to the given electricity of the brightness of each analog voltage input input
Pressure carries out A/D conversions, obtains the brightness Setting signal of 4 LED light.
Wall control switch unit sends brightness control signal by controlling the voltage waveform of single fire wire output end AC1 outputs,
When the maintenance of wall control switch unit does not send out brightness control signal state, single chip control module persistently exports low level triggering letter
Number, the voltage waveform of bidirectional thyristor V1 constant conductions in addition to zero crossing, single fire wire output end AC1 outputs is continuous whole list
Phase sine wave.
When wall control switch unit needs to send a brightness control signal, the waveform of a brightness control signal is by guiding
Waveform+address waveform+data waveform composition；The negative half-wave that guiding waveform is not turned on by one, immediately one is completely connected just
Half wave component；The complete cycle that can also be not turned on by one of guiding waveform, immediately a positive half-wave composition be completely connected.
Address waveform is made of the phase shift waveform of a cycle, and it is phase shifting angle γ to bear half-wave1, positive half-wave is phase shifting angle γ0；
Phase shifting angle γ1, phase shifting angle γ0Value can be respectively phase shifting angle α2、α1、α0In one, phase shifting angle α2、α1、α0Three are corresponded to respectively
System number code value 2,1,0.Address waveforms stands be LED light adjust driving unit address code, address code is by 2 ternarys
Location data composition, can at most control 9 LED light and adjust driving unit.1-9#LED lamps adjust driving unit and correspond in order
2 ternary address codes be 00,01,02,10,11,12,20,21,22.
Data waveform is made of the phase shift waveform of a cycle, and it is phase shifting angle β to bear half-wave1, positive half-wave is phase shifting angle β0；It moves
Phase angle beta1, phase shifting angle β0Value can be respectively phase shifting angle α2、α1、α0In one, phase shifting angle α2、α1、α0Ternary is corresponded to respectively
Digital value 2,1,0.Each LED light has 9 grades of different brightness degrees from low to high, i.e. brightness 1-9, by 2 ternary brightness numbers
According to expression；2 ternary brightness datas corresponding with brightness 1-9 are 00,01,02,10,11,12,20,21,22 successively；Phase shift
Angle beta1For a high position for 2 ternary brightness datas, phase shifting angle β0For the low level of 2 ternary brightness datas.
Phase shifting angle α2、α1、α0Meet α2<α1<α0Relationship, representative value takes α2=30 °, α1=60 °, α0=90 °, such as Fig. 4 institutes
Show.Phase shifting angle α2、α1、α0It can also value α2=0 °, α1=45 °, α0=90 ° or value α2=0 °, α1=30 °, α0=
60°。
As shown in Fig. 5 waveform example Fig. 1 of a brightness control signal is sent, wherein Fig. 5 (a) is that single firewire is defeated
The brightness control signal voltage waveform of outlet AC1 outputs, Fig. 5 (b) are zero cross signal voltage waveform, and Fig. 5 (c) is brightness control letter
Voltage waveform after number negative halfwave rectifier shaping, Fig. 5 (d) are voltage waveform after brightness control signal positive half-wave rectification shaping.
When single fire wire output end AC1 exports continuous whole single-phase sine wave, single fire wire output end AC1 is inputted with single firewire
The voltage difference very little between AC, zero passage detection module is held not to export zero cross signal, zero cross signal is maintained low level state.
It is random to stop trigger signal output when single chip control module needs to send a brightness control signal.Work as stopping
When at the time of exporting trigger signal during AC power positive half-wave, positive half-wave bidirectional thyristor V1 has been turned on, next
Negative half-wave bidirectional thyristor V1 be not turned on, zero passage detection module exports zero cross signal in entire negative half-wave, and zero cross signal is pair
AC power is answered to bear the positive pulse of half-wave, as shown in the pulse 1 in Fig. 5,1 width of pulse is close to 10ms.Single chip control module
A trigger pulse for being no more than 10ms is sent out in the falling edge of pulse 1, controls the next positive half-waves of bidirectional thyristor V1
Conducting；It regard the falling edge of pulse 1 as zero passage time zero simultaneously, is phase shifting angle γ after 10ms1Zero crossing, be after 20ms
Phase shifting angle γ0Zero crossing, be phase shifting angle β after 30ms1Zero crossing, be phase shifting angle β after 40ms0Zero crossing.In Fig. 5 (a),
Waveform 2-5 corresponding is phase shifting angle γ respectively1, phase shifting angle γ0, phase shifting angle β1, phase shifting angle β0；Phase shifting angle γ1Value be α0, move
Phase angle γ0Value be α1, the address code of representative is 01, and it is 2# that corresponding LED light, which adjusts driving unit,；Phase shifting angle β1Value be α1,
Phase shifting angle β0Value be α2, the corresponding 2 ternary brightness datas of brightness control signal are 12；Transmitted brightness control signal
It is meant that：The brightness degree for controlling 2#LED lamps is brightness 6.
When single chip control module needs to send a brightness control signal, it is random at the time of stop trigger signal output
When during the negative half-wave of AC power, which has been turned on, next positive half-wave bidirectional thyristor V1
It is not turned on, but since zero passage detection module is using halfwave rectifier, positive half-wave bidirectional thyristor V1 is not turned on, will not make
Zero detection module exports zero cross signal；Until negative half-wave bidirectional thyristor V1 next is not turned on, zero passage detection module exists
Entirely negative half-wave exports zero cross signal, and zero cross signal is positive pulse.Waveform example Fig. 2 of a brightness control signal is sent as schemed
Shown in 6, Fig. 6 (a) is the brightness control signal voltage waveform of single fire wire output end AC1 outputs, and Fig. 6 (b) is zero cross signal voltage
Waveform, Fig. 6 (c) are that brightness control signal bears voltage waveform after halfwave rectifier shaping, and Fig. 6 (d) is brightness control signal positive half-wave
Voltage waveform after rectification shaping.Pulse 11 in Fig. 6 is zero cross signal positive pulse, and width is close to 10ms.Microcontroller controls mould
Block sends out a trigger pulse for being no more than 10ms, control bidirectional thyristor V1 next just half in the falling edge of pulse 11
Waveguide is logical；It regard the falling edge of pulse 11 as zero passage time zero simultaneously, is phase shifting angle γ after 10ms1Zero crossing, 20ms
It is phase shifting angle γ afterwards0Zero crossing, be phase shifting angle β after 30ms1Zero crossing, be phase shifting angle β after 40ms0Zero crossing.Fig. 6 (a)
In, waveform 12-15 corresponding is phase shifting angle γ respectively1, phase shifting angle γ0, phase shifting angle β1, phase shifting angle β0；Phase shifting angle γ1Value be
α0, phase shifting angle γ0Value be α1, the address code of representative is 01, and it is 2# that corresponding LED light, which adjusts driving unit,；Phase shifting angle β1Value
For α0, phase shifting angle β0Value be α2, the corresponding 2 ternary brightness datas of brightness control signal are 02；Transmitted brightness control
Signal is meant that：The brightness degree for controlling 2#LED lamps is brightness 3.
When the BCD of all BCD rotary encoders outputs is encoded to 0000, single chip control module stops output triggering letter
Number, all LED light are closed in bidirectional thyristor V1 shutdown, realize that single-fire-wire electronic switch is turned off the light function.It is connected in parallel on bidirectional thyristor
The resistance R1 of two anode taps of V1 provides a micro-current circulation passage when V1 is turned off, when V1 is turned off, single firewire output
End AC1 resistance R1 flows through micro-current, and single fire-wire power module flows through micro- electricity that multiple LED light adjust driving unit by this simultaneously
Stream is converted by DC/DC and realizes OFF state current-taking function.
Fig. 7 is brightness control signal sending control method, is realized by the program in single chip control module, method
It is：
Step A judges whether to close LED light, is to close LED light, into LED light state is closed, goes to step D；Otherwise it is
Non- closing LED light state, goes to step B；
Step B determines the address code and brightness degree of brightness control signal；
Step C sends out a brightness control signal；
Step D, judges whether brightness Setting signal changes, and brightness Setting signal changes, return to step A；Brightness is given
Determine signal not change, return to step C.
When wall control switch unit does not send out brightness control signal, the voltage waveform of single fire wire output end AC1 outputs is to connect
Continuous complete single-phase sine wave.
When determining brightness control signal, first determine whether be the corresponding LED light of which address code brightness Setting signal occur
Change, determine address code, then determines its brightness degree.If there is the brightness Setting signal of the corresponding LED light of multiple address codes
It changes, then first handles one of them, send out a brightness control signal；There is untreated complete can be returned again in step D
Step A is returned, handles successively and sends out brightness control signal.
When judging whether brightness Setting signal changes, as long as there is 1 or more, including the given letter of the brightness of 1 LED light
It number changes, then it is assumed that brightness Setting signal changes.
The structure that all LED light adjust driving unit is all identical, as shown in figure 8, being driven by microcontroller adjustment module, LED
It is defeated that the ac input end of module composition, microcontroller adjustment module and LED drive module is connected to firewire input terminal AC1, zero curve
Enter to hold N.
For LED drive module for driving LED light to light, all LED equipped with PWM brightness regulated signal input terminals drive mould
Block is suitable for the present invention.
Microcontroller adjustment module is equipped with PWM brightness regulated signals output end and is connected to the PWM brightness tune of LED drive module
Save signal input part.
The embodiment circuit of microcontroller adjustment module is as shown in Figure 9.
In embodiment illustrated in fig. 9, microcontroller adjustment module is by adjusting microcontroller U5, diode D3, diode D4, diode
D5, diode D6, diode D7, diode D8, voltage-stabiliser tube DW2, voltage-stabiliser tube DW3, voltage-stabiliser tube DW4, resistance R6, resistance R7, electricity
Hinder R8, capacitance C5, crystal oscillator XT2, BCD toggle switch SW compositions.
Diode D3, diode D4 cathodes, diode D5, diode D6, capacitance C5, resistance R6, voltage-stabiliser tube DW2 compositions are whole
Regulator circuit is flowed, power supply is provided to microcontroller U5 is adjusted.
Diode D8, resistance R8, voltage-stabiliser tube DW4 compositions bear halfwave rectifier shaping circuit, negative half obtained on voltage-stabiliser tube DW4
Shown in wave waveform such as Fig. 5 (c), Fig. 6 (c)；Diode D7, resistance R7, voltage-stabiliser tube DW3 form positive half-wave rectification shaping circuit, surely
Shown in the positive half-wave waveform obtained on pressure pipe DW3 such as Fig. 5 (d), Fig. 6 (d).Positive half-wave rectification shaping circuit and negative halfwave rectifier are whole
Shape circuit carries out positive half-wave rectification shaping and negative halfwave rectifier shaping to the alternating voltage of firewire input terminal AC1 inputs respectively.Just
The output for exporting, bearing halfwave rectifier shaping circuit of halfwave rectifier shaping circuit is respectively connected to adjust the capture ratio of microcontroller U5
Compared with input terminal P2.0, P2.1.
It is that the PWM brightness regulated signals are defeated to adjust microcontroller U5 models MSP430G2553, PWM output end P1.2
Outlet.Adjust the power supply negative input end VSS of microcontroller U5 with being connected to common reference.
BCD toggle switch SW is connected to the address code setting input terminal of microcontroller adjustment module, in embodiment illustrated in fig. 9,
Address code sets P2.2-P2.5 of the input terminal to adjust microcontroller U5.BCD toggle switch SW adjusts driving for setting LED light
The address code of unit；When the BCD coding ranges of BCD toggle switch SW output are 0001-1001, corresponding LED light tune in order
The number for saving driving unit is 1-9#, and corresponding 2 ternary address codes are 00,01,02,10,11,12,20,21,22；BCD
When the BCD of toggle switch SW outputs is encoded to 0000, which, which adjusts driving unit, will close LED light, stop receiving brightness control
Signal processed.In embodiment illustrated in fig. 9, the BCD of BCD toggle switch SW outputs is encoded to 0001, indicates this LED light adjusting driving
Unit is set as 1#LED lamps and adjusts driving unit, and 2 ternary address codes of respective settings are 00.
LED drive module is equipped with the LED drive module of PWM brightness regulated signal input terminals all for driving LED light to light
It can be adapted for the present invention, be only one of embodiment circuit shown in Figure 10.
In Figure 10, LED drive module is by LED driver U6, diode D9, diode D10, diode D11, diode
D12, capacitance C6, capacitance C7, capacitance C8, inductance L3, fast recovery diode D13, switching tube VD, resistance R9, resistance R10 compositions.
The model HV9910 of LED driver U6.
In Figure 10, diode D9, diode D10, diode D11, diode D12 form single phase bridge type rectifier circu.It is single
2 ac input ends of phase bridge rectifier are respectively connected to firewire input terminal AC1, zero curve input terminal N, direct current output negative terminal
With being connected to common reference, direct current output anode is connected to the power supply of capacitance C6 anodes, one end of capacitance C7, LED driver U6
Input terminal VIN, one end of inductance L3, fast recovery diode D13 cathodes.The ground input terminal GND of LED driver U6 is connected to public
Reference ground.Capacitance C6 cathode, capacitance C7 the other end with being connected to common reference.Fast recovery diode D13 anodes and switching tube
Negative polarity connecting pin LED- after the drain electrode connection of VD as high-powered LED lamp, the other end of inductance L3 is as high-power
The positive polarity connecting pin LED+ of LED light.The source electrode of switching tube VD is connected to the LED driver U6 after being coupled with the one end resistance R9
LED current test side CS；The other end of resistance R9 is with being connected to common reference.The grid of switching tube VD is connected to LED drivings
The driving end GATE of device U6；One end of resistance R10 is connected to the frequency of oscillation control terminal RT of LED driver U6, other end connection
To common reference.Capacitance C8 anodes are connected to the control voltage output end VDD and linear current control terminal of LED driver U6
LD, cathode are with being connected to common reference.The enabled control terminal PWM_D of LED driver U6 inputs for the PWM brightness regulated signals
End.
LED light adjusts driving unit and receives brightness control signal by microcontroller adjustment module and control brightness, such as Figure 11 institutes
To show, method is,
Step 1, initialization, control LED light are original intensity；
Step 2 judges whether there is brightness control signal on single firewire；There is no brightness control signal, return to step two；There is brightness
Signal is controlled, step 3 is gone to；
Step 3 receives brightness control signal, obtains 2 ternary address codes and 2 ternary brightness datas；
Step 4 determines whether target LED light；It is not target LED light, return to step two；It is target LED light, goes to step
Five；
Step 5 changes LED light brightness, return to step two.
Original intensity could be provided as any one of 9 grades of different brightness, for example, being set as brightness 1.
Judge whether there is brightness control signal on single firewire, method is to judge whether there is brightness control signal on single firewire
Guide waveform.Under normal circumstances, the voltage waveform of firewire input terminal AC1 inputs is continuous whole single-phase sine wave, bears half-wave
The waveform of rectification shaping circuit output is the rectangular wave of period 20ms, the nearly 10ms of pulse width.Wall control switch unit sends primary
When brightness control signal, guiding waveform causes the missing of a negative half-wave, such as Fig. 5 (c) and 1 corresponding position of Fig. 5 (b) pulses
Negative half-wave pulse missing, as the negative half-wave pulse of Fig. 6 (c) and 11 corresponding position of Fig. 6 (b) pulses lacks.Microcontroller adjustment module
Judge that the waveform of negative halfwave rectifier shaping circuit output has negative half-wave pulse to lack, and next positive half-wave rectification shaping electricity
The positive half-wave waveform of road output is complete, and corresponding positive half-wave pulse is the pulse 6 in Fig. 5 or the pulse 16 in Fig. 6, you can
Judge the guiding waveform for having brightness control signal on single firewire.
Brightness control signal is received, 2 ternary address codes and 2 ternary brightness datas are obtained, method is to survey successively
The angle of flow for measuring the angle of flow and positive half-wave of the negative half-wave of address waveform, data waveform, is calculated negative half-wave phase shifting angle and just half
After wave phase shifting angle, reconvert is at 2 ternary address codes and 2 ternary brightness datas.In Fig. 5 in the width, Fig. 6 of pulse 7
The width of pulse 17 is the angle of flow that address waveform bears half-wave, and the width of pulse 18 is address in the width, Fig. 6 of pulse 8 in Fig. 5
The angle of flow of waveform positive half-wave；The width of pulse 19 is the conducting that data waveform bears half-wave in the width, Fig. 6 of pulse 9 in Fig. 5
Angle, the width of pulse 20 is the angle of flow of data waveform positive half-wave in the width, Fig. 6 of pulse 10 in Fig. 5.Phase shifting angle and the angle of flow
The sum of be 180 °, or be time 10ms.Negative half-wave phase shifting angle γ1And β1, positive half-wave phase shifting angle γ0And β0Selection and shifting respectively
Phase angle α2、α1、α0In immediate one, to determine corresponding trit code value 2,1,0 respectively.
Determine whether target LED light, method be 2 ternary address codes judging to receive whether with this LED light tune
2 ternary address codes of section driving unit setting are consistent；It is consistent, is target LED light；It is inconsistent, it is not target LED
Lamp.
Change LED light brightness, by changing the PWM brightness regulations letter for being connected to LED driver U6 and enabling control terminal PWM_D
Number duty ratio realize.
In Fig. 1, wall control switch unit is single firewire AC into single firewire AC1 goes out；All LED light adjust driving unit fire
Line AC1 is into zero curve N goes out.From the point of view of anti-interference, the positions firewire AC and zero curve N in Fig. 1 are exchanged, it is of the present invention
Method is still effective, and anti-interference ability is stronger.
The present invention has following features：
1. controlling LED light brightness using single firewire mode, it is not necessarily to remote controler, is not necessarily to control line, without laying power cord again；
2. LED light brightness regulation is divided into 9 grades, adjusted using knob assembly, meets operating habit；
3. the brightness control signal on single firewire is only to be sent in short-term when changing brightness；
4. can individually control the brightness of most 9 LED light using single firewire.
Claims (10)
1. a kind of circuit of the multiple LED light brightness of list firewire far distance controlled, it is characterised in that：
The wall control switch unit that driving unit is adjusted by K LED light and is connected on single firewire forms, and controls the bright of K LED light
Degree, K are to be less than or equal to 9 integer more than or equal to 1；The wall control switch unit is equipped with single firewire input terminal, single firewire output
End；The list firewire input terminal is connected to AC power firewire；The LED light adjusts driving unit and is equipped with firewire input terminal, zero
Line input terminal；The firewire input terminal of the K LED light adjusting driving unit is connected to single firewire output of wall control switch unit
End, zero curve input terminal are connected to AC power zero curve；
The wall control switch unit is by single fire-wire power module, single chip control module, phase shift drive module, zero passage detection mould
Block, brightness give module composition；
The phase shift drive module is that bidirectional thyristor exchanges phase-shift circuit；
The list fire-wire power module has single firewire OFF state current-taking function and ON state current-taking function, is used for wall control switch unit
Working power is provided；
The zero passage detection module exports the zero passage letter of the AC power when bidirectional thyristor turns off in phase shift drive module
Number, and it is supplied to single chip control module；
The brightness gives module and is capable of providing K brightness Setting signal to single chip control module；
The single chip control module sends out trigger signal and controls phase shift drive module to K LED light according to brightness Setting signal
Driving unit power supply is adjusted, and driving unit is adjusted to K LED light to by controlling the voltage waveform that single fire wire output end exports
Send out brightness control signal.
2. the circuit of the multiple LED light brightness of list firewire far distance controlled according to claim 1, it is characterised in that：It is described
Brightness control signal by guiding waveform, address waveform and data sets of waveforms at；Address waveform by a cycle phase shift sets of waveforms
At it is phase shifting angle γ to bear half-wave1, positive half-wave is phase shifting angle γ0；Data waveform is made of the phase shift waveform of a cycle, bears half-wave
For phase shifting angle β1, positive half-wave is phase shifting angle β0。
3. the circuit of the multiple LED light brightness of list firewire far distance controlled according to claim 2, it is characterised in that：Monolithic
It is random to stop trigger signal output when machine control module sends out brightness control signal；When stop export trigger signal at the time of
When during AC power positive half-wave, the bidirectional thyristor in phase shift drive module is born half-wave in next AC power and is not led
Logical, zero passage detection module bears half-wave in next AC power and exports zero cross signal, and zero cross signal corresponds to this and is not turned on
AC power bears the positive pulse of half-wave；When at the time of stopping trigger signal output during AC power bears half-wave, phase shift is driven
Dynamic model bidirectional thyristor in the block is born half-wave in next AC power positive half-wave and next AC power and is not turned on, mistake
Zero detection module does not export zero cross signal in the AC power positive half-wave being not turned on, and half-wave output is born in next AC power
Zero cross signal, zero cross signal are the positive pulse that corresponding next AC power bears half-wave；By the positive pulse failing edge of zero cross signal
It is phase shifting angle γ after 10ms as zero passage time zero1Zero crossing, be phase shifting angle γ after 20ms0Zero crossing, be after 30ms
Phase shifting angle β1Zero crossing, be phase shifting angle β after 40ms0Zero crossing.
4. the circuit of the multiple LED light brightness of list firewire far distance controlled according to claim 3, it is characterised in that：It is described
Address waveform indicates that LED light adjusts the address code of driving unit, and the data waveform indicates the brightness degree of LED light.
5. any one of single firewire long distance according to claim 1-4 is from the circuit for controlling multiple LED light brightness, feature
It is：The zero passage detection module is halfwave rectifier bleeder circuit, by diode D2, resistance R4, resistance R5, voltage-stabiliser tube DW1 groups
At.
6. the circuit of the multiple LED light brightness of list firewire far distance controlled according to claim 5, it is characterised in that：It is described
Phase shift drive module is made of bidirectional thyristor, silicon-controlled output optocoupler, resistance R1, resistance R2, resistance R3.
7. the circuit of the multiple LED light brightness of list firewire far distance controlled according to claim 6, it is characterised in that：It is described
Single fire-wire power module includes single firewire voltage-stablizer and its peripheral cell diode D1, capacitance C1, capacitance C2, inductance L1, inductance
L2, low-dropout regulator.
8. the circuit of the multiple LED light brightness of list firewire far distance controlled according to claim 7, it is characterised in that：It is described
Single firewire input terminal is the simulation of wall control switch unit, is connected to the alternating voltage common end of single firewire voltage-stablizer；Capacitance C1
Both ends be respectively connected to filter capacitor input terminal and the alternating voltage common end of single firewire voltage-stablizer；Single firewire voltage-stablizer it is straight
Digitally for wall control switch unit, the both ends of inductance L2 are respectively connected to the number of wall control switch unit to stream output voltage ground terminal
Ground and simulation ground；Diode D1, inductance L1 and capacitance C2 form halfwave rectifier filter circuit, the input of halfwave rectifier filter circuit
It is connected to single fire wire output end, output is connected to the high direct voltage input terminal of single firewire voltage-stablizer；The low-dropout regulator
Input terminal is connected to the DC voltage output end of single firewire voltage-stablizer, and output end exports DC supply；
Two anode taps of the bidirectional thyristor are respectively connected to the alternating voltage of single fire wire output end and single firewire voltage-stablizer
End；Resistance R1 is connected in parallel on two anode taps of bidirectional thyristor V1；The output of silicon-controlled output optocoupler is silicon-controlled to go here and there with resistance R2
Connection, series arm are connected to the first anode and control pole of bidirectional thyristor；The input light-emitting diodes of silicon-controlled output optocoupler
Pipe is connected with resistance R3, and series arm one end is connected to DC supply, and other end is trigger signal input terminal；
The zero passage detection module is made of diode D2, resistance R4, resistance R5, voltage-stabiliser tube DW1；The both ends of the resistance R4 point
It is not connected to diode D2 cathodes and voltage-stabiliser tube DW1 cathodes；Diode D2 anodes are connected to single fire wire output end；Voltage-stabiliser tube DW1
Anode is with being connected to the simulation of wall control switch unit；Resistance R5 is connected in parallel on the both ends voltage-stabiliser tube DW1；Zero cross signal is from voltage-stabiliser tube DW1
Cathode exports.
9. the circuit of the multiple LED light brightness of single firewire far distance controlled according to any one of claim 1-8, feature
It is：The LED light adjusts driving unit and is made of microcontroller adjustment module, LED drive module；The LED light adjusts driving
Unit can carry out address code setting；The LED drive module is equipped with ac input end and LED light drives end, wherein exchange is defeated
Enter end and be connected to firewire input terminal and zero curve input terminal that LED light adjusts driving unit, LED light driving end is connected to LED light；Institute
It states LED drive module and is additionally provided with PWM brightness regulated signal input terminals.
10. the circuit of the multiple LED light brightness of list firewire far distance controlled according to claim 9, it is characterised in that：It is described
Microcontroller adjustment module includes that adjusting microcontroller, positive half-wave rectification shaping circuit, negative halfwave rectifier shaping circuit and rectification are steady
Volt circuit is equipped with ac input end, PWM brightness regulated signal output ends；The ac input end is connected to LED light and adjusts driving
The firewire input terminal and zero curve input terminal of unit, PWM brightness regulated signal output ends are connected to the PWM brightness of LED drive module
Regulate signal input terminal；The positive half-wave rectification shaping circuit and negative halfwave rectifier shaping circuit respectively input firewire input terminal
Alternating voltage carry out positive half-wave rectification shaping and negative halfwave rectifier shaping；The positive half-wave rectification shaping circuit is exported, is born
The output of halfwave rectifier shaping circuit is respectively connected to adjust the different pulse capture input terminal of microcontroller；The LED light is adjusted
Driving unit receives brightness control signal by microcontroller adjustment module and controls brightness.
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| CN201810456191.0A CN108650733A (en) | 2015-05-08 | 2015-05-08 | A kind of circuit of the multiple LED light brightness of list firewire far distance controlled |
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| CN201510229297.3A CN104869707A (en) | 2015-05-08 | 2015-05-08 | Single-live line multi-LED lamp brightness remote control circuit |
| CN201810456191.0A CN108650733A (en) | 2015-05-08 | 2015-05-08 | A kind of circuit of the multiple LED light brightness of list firewire far distance controlled |
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| CN201510229297.3A Division CN104869707A (en) | 2015-05-08 | 2015-05-08 | Single-live line multi-LED lamp brightness remote control circuit |
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| CN201510229297.3A Pending CN104869707A (en) | 2015-05-08 | 2015-05-08 | Single-live line multi-LED lamp brightness remote control circuit |
| CN201810456191.0A Pending CN108650733A (en) | 2015-05-08 | 2015-05-08 | A kind of circuit of the multiple LED light brightness of list firewire far distance controlled |
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| US10928681B2 (en) * | 2017-09-15 | 2021-02-23 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Intelligent light alignment driving system and driving method thereof |
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| CN106094968B (en) * | 2016-06-15 | 2017-10-27 | 湖南工业大学 | Many ground controlling switch |
| CN106155167B (en) * | 2016-06-15 | 2017-10-20 | 湖南工业大学 | Capacitance touch list live wire is switched |
| CN110087370B (en) * | 2019-04-30 | 2021-05-04 | 领佳科技发展有限公司 | Phase-cut dimming equipment combination circuit adopting voltage coding to transmit control command |
| CN112672473A (en) * | 2021-01-13 | 2021-04-16 | 杭州昀芯光电科技有限公司 | Multi-code mixed power line edge signal triggered colored lamp device |
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| CN202009528U (en) * | 2011-05-13 | 2011-10-12 | 惠州市纯英半导体照明科技有限公司 | LED (light-emitting diode) lamp-dimming system |
| CN103281849A (en) * | 2013-06-26 | 2013-09-04 | 湖南工业大学 | Light-adjusting device and method of LED illuminating lamp |
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| KR100823313B1 (en) * | 2007-03-29 | 2008-04-17 | 건아정보기술 주식회사 | Led lamp device for position confirmation |
| CN101815383B (en) * | 2010-03-31 | 2013-11-06 | 许波 | LED dimming driving device and dimming LED lamp |
| CN102548148A (en) * | 2012-01-10 | 2012-07-04 | 江苏三显照明科技有限公司 | Integrated LED (Light Emitting Diode) ceiling lamp independently powered by firing line |
| TWI477190B (en) * | 2012-08-10 | 2015-03-11 | Macroblock Inc | Light emitting diode driving apparatus |
| CN203072200U (en) * | 2012-12-12 | 2013-07-17 | 欧司朗股份有限公司 | Current compensation device and illumination equipment having the same |
| CN104470046B (en) * | 2013-09-25 | 2018-05-04 | 施建强 | A kind of single fire line control illumination light modulation and the method for switch |
| CN203814012U (en) * | 2014-04-10 | 2014-09-03 | 江苏普明光电科技有限公司 | Driving circuit capable of improving LED visual lighting effect |
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| CN202009528U (en) * | 2011-05-13 | 2011-10-12 | 惠州市纯英半导体照明科技有限公司 | LED (light-emitting diode) lamp-dimming system |
| CN103281849A (en) * | 2013-06-26 | 2013-09-04 | 湖南工业大学 | Light-adjusting device and method of LED illuminating lamp |
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| US10928681B2 (en) * | 2017-09-15 | 2021-02-23 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Intelligent light alignment driving system and driving method thereof |
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| CN108811241A (en) | 2018-11-13 |
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