CN105813258B - A kind of synchronous method of LED power solid conductor synchronization - Google Patents
A kind of synchronous method of LED power solid conductor synchronization Download PDFInfo
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- CN105813258B CN105813258B CN201610191267.2A CN201610191267A CN105813258B CN 105813258 B CN105813258 B CN 105813258B CN 201610191267 A CN201610191267 A CN 201610191267A CN 105813258 B CN105813258 B CN 105813258B
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- signal
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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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
A kind of synchronous method the present invention provides LED power with solid conductor synchronization, it is characterized in that communication is synchronized using solid conductor between LED power synchronous communication port, the datum of synchronizing signal is the output negative terminal of bridge rectifier, and the signal end of synchronizing signal is AC phase conductors or the output plus terminal of bridge rectifier；Datum of the signal end signal of data and synchronizing signal to be synchronized based on synchronizing signal itself is carried out signal modulation by master control LED power, exported as synchronizing signal and by synchronous communication port, LED power to be synchronized demodulates synchronous signal by analyzing the synchronizing signal of synchronous signal port with the datum of itself.Light modulation brightness and switching signal, the transmission high-voltage signal identical with power cord are transmitted using solid conductor, it is not necessary to isolate, there is no phase limitation to the power cord of transmission signal, any phase line transmission signal, unlimited distance and power supply number in three phase mains can be used.
Description
Technical field
The present invention relates to Led lighting areas, the synchronous method of more particularly to a kind of LED power solid conductor synchronization.
Background technology
The products application of LED light modulations at present is more and more wider, and same region can install more same class due to the needs of illumination
The lamps and lanterns of type, when some application places may require that light modulation with switch, all lamps and lanterns of same dimmer switch control will be in
Same state.Existing power supply can realize this function in a small range, but asynchrony phenomenon often occurs, i.e.,：
What is had in the same area is bright, and what is had is dark, and client cannot receive.
Existing power pin is substantially all and goes to solve this with carrying out communication by low-voltage dc signal for this problem
Problem, also the mode of useful pwm signal, which connects, solves the problems, such as this, the common ground of these schemes be all it is secondary, it is necessary to every
From transmission, and 2 conducting wires are typically necessary, connect the limited amount system of product, the defects of line length is also restricted, bad wiring.
The content of the invention
For disadvantages described above, present invention aims at the quantity for how reducing line synchro, and ensure its synchronic distance and standard
True Communication.
In order to solve problem above, the present invention proposes a kind of synchronous method of LED power solid conductor synchronization, it is special
Levy and be to synchronize communication using solid conductor between LED power synchronous communication port, the datum of synchronizing signal is bridge
The level of the output negative terminal of formula rectification, the synchronous communication port of synchronizing signal for AC phase conductors or bridge rectifier output just
End；Master control LED power is by the signal of the synchronous communication port of data and synchronizing signal to be synchronized based on synchronizing signal itself
Datum carries out signal modulation, is exported as synchronizing signal and by synchronous communication port, LED power to be synchronized passes through analysis
The synchronizing signal of synchronous signal port demodulates synchronous signal with the datum of itself；LED power synchronous communication port is same
When there is synchronous signal output end and synchronous signal input end, synchronous signal output end and synchronous signal input end share
Same synchronous communication port, when one of LED power is configured to master control LED power, this LED power synchronous communication port
It is configured to synchronous signal output end；When being configured to LED power to be synchronized, LED power synchronous communication port is configured to synchronous letter
Number input terminal；The light modulation process circuit for producing synchronizing signal is additionally provided with the master control LED power.
The synchronous method of LED power solid conductor synchronization, it is characterised in that LED power synchronous communication port leads to
News single power mode in same group section is either simplex or semiduplex mode.
The synchronous method of LED power solid conductor synchronization, it is characterised in that LED power synchronous communication port leads to
News transmission signal is power switch signal, PWM dim signals or binary digital signal.
The synchronous method of LED power solid conductor synchronization, it is characterised in that also set in the master control LED power
Have a zero passage detection module, zero passage detection module be used for realization detection supply voltage whether zero passage, testing result is input to master control
The master controller of LED power.
The synchronous method of LED power solid conductor synchronization, it is characterised in that the signal modulation is by treating
Synchronous data control silicon-controlled, triode, the relay either mode of the control terminal of MOSFET and AC phase conductors or bridge-type
The output plus terminal of rectification realizes modulation, and it is defeated during current power voltage zero-crossing signal that master controller detects that zero passage detection module inputs
Go out data to be synchronized.
The present invention transmits light modulation luminance signal and power switch signal by using solid conductor, it is not necessary to isolates, uses
The high-voltage signal identical with power cord, does not have phase limitation to the power cord of transmission signal, can use in three phase mains and appoint
One phase line transmission signal, unlimited distance are unlimited to the power supply number of connection in principle；Single power line is only needed, can be at the same time
Pulse width signal and switching signal or binary digital signal are transmitted, very easily realizes synchronously opening between power supply and power supply
Pass and brightness adjustment control.
Brief description of the drawings
Potential difference graphs of a relation of the Fig. 1 between each line of three-phase four-wire system；
Fig. 2 is the power-supply system block diagram for the synchronous method for realizing the synchronization of LED power solid conductor；
Fig. 3 is that the switching waveform diagram of synchronous end output is intended to；
Fig. 4 is the schematic diagram that this programme is realized using thyristor；
Fig. 5 is the schematic diagram that this programme is realized using triode.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment, belongs to the scope of protection of the invention.
Potential difference graphs of a relation of the Fig. 1 between each line of three-phase four-wire system, in three phase and four wire circuit system, phase line A, B,
There are one between C and neutral conductor N to fix potential difference, is normally only connected in A, B, C three-phase in the lighting circuit used in us
A wherein phase forms a current supply circuit with neutral conductor N, is supplied to late-class circuit to use after full-bridge rectification, full-bridge is by 4
Diode forms, and when source current flows through full-bridge, the positive half cycle and negative half period that are flowed through in electric current, always there is 2 diodes and company
The phase line that connects, N form circuit, to rear class circuit provide needed for power supply.Four pins that full bridge rectifier bridge heap is drawn, two two poles
The tie point of pipe anode is full-bridge direct current output terminal " cathode ", and the tie point of two diode cathodes is full-bridge direct current output terminal
" anode ", the positive half cycle flowed through in source current and negative half period, any one phase line is exported " negative by diode and full-bridge
Pole " forms circuit, all there is fixed potential difference between " anode " of full-bridge output and any phase line, and the prime of each power supply is whole
Current circuit is identical, so " anode " of the full-bridge output in each power supply can have fixed current potential between any phase line
Difference, as long as we can transmit the voltage of any one phase line in A, B, C three-phase, with regard to that can detect whether there is transmission electricity on power supply
Press signal.The present invention just transmits the pulse width signal of dimming power source and switching signal using this potential difference.
Fig. 2 is the power-supply system block diagram for the synchronous method for realizing the synchronization of LED power solid conductor；System includes whole
Flow filter circuit 1, DC-DC conversion circuit 2, output rectification filter 3, synchronous input circuit 5, synchronism output circuit 6, central processing
Circuit 4, light modulation process circuit 7 form.Wherein DC-DC conversion circuit 2 provide synchronous input circuit 5, synchronism output circuit 6, in
Entreat process circuit 4, dim power supply needed for process circuit 7, and the high pressure that current rectifying and wave filtering circuit 1 is exported is converted into high frequency low voltage,
Become direct current by 3 rectifying and wave-filtering of output rectification filter to power to LED.Synchronous circuit includes synchronous input circuit 5, synchronism output
Circuit 6 and central processing circuit 4.The power supply of the system can be configured to master control dimming power source or light modulation electricity to be synchronized as needed
Source, a lighting system set a master control dimming power source and multiple dimming power sources to be synchronized, line synchro and master control dimming power source
The synchronous signal output end of synchronism output circuit 6 be connected, the synchronous input circuit 5 of dimming power source to be synchronized with synchronous letter
Number input terminal is connected；When this power supply receives the dim signal or switching signal of external dimmer port, pass through center first
Process circuit 4 is the brightness value of power supply output adjustment to dim signal itself, while central processing circuit 4 opens synchronism output electricity
Road 6, the brightness value of power supply dim signal itself is handled by the internal processes of central processing circuit 4, is exported to synchronizing signal
Output terminal；Dimming power source to be synchronized detects that synchronous signal input end has synchronizing signal input, is carried out by synchronous input circuit 5
Data convert processing, is converted to the signal of the identification of central processing circuit 4, and central processing circuit 4 is controlled according to the signal received
This dimming power source to be synchronized is dimmed or switch control operations, realizes and master control dimming power source Synchronization Control.
Fig. 3 is that the switching waveform diagram of synchronous end output is intended to；Waveform W1 is synchronization end when dimming duty cycle is maximum
Waveform；Waveform W2 is the waveform at the synchronous end after dimming duty cycle change；Waveform W3 is the waveform at the synchronous end after light modulation shut-off.
Fig. 4 is the schematic diagram that this programme is realized using thyristor；When central processing unit 4 needs outgoing synchronizing signal
When, detect first SYNC feet whether zero passage, ensure that synchronizing signal is synchronous with supply voltage, if having been subjected to zero, central processing
Device 4 calculates different pulsewidths according to the different luminance meters of power supply itself, by triggering controlled silicon conducting at different phase angles, passes
Defeated PWM pulse width signals are to synchronous end.When synchronous input circuit 5 has detected outer synchronous signal input, by exterior synchronization
Signal is sent into central processing unit 4 by shaping and is handled, if effective synchronizing signal, then central processing unit 4 controls DC-DC to become
Change 2 response action of circuit.
Triode or MOSFET are replaced with silicon-controlled in Fig. 5, when central processing unit 4 needs outgoing synchronizing signal,
Central processing unit 4 calculates different pulsewidths according to the different luminance meters of power supply itself, by exporting different PWM width control systems Q1
Conducting, transmission PWM pulse width signals to synchronous end.When synchronous input circuit 5 has detected outer synchronous signal input, by outside
Synchronizing signal by shaping be sent into central processing unit 4 handle, if effective synchronizing signal, then central processing unit 4 controls
2 response action of DC-DC conversion circuit.
Above disclosed is only an embodiment of the present invention, cannot limit this interest field with this certainly, this
Field those of ordinary skill is appreciated that to realize all or part of flow of above-described embodiment, and is made according to the claims in the present invention
Equivalent variations, still fall within the scope that is covered of the present invention.
Claims (5)
1. a kind of LED power synchronous method of solid conductor synchronization, it is characterised in that LED power synchronous communication is adopted between port
Communication is synchronized with solid conductor, and the datum of synchronizing signal is the level of the output negative terminal of bridge rectifier, synchronizing signal
Synchronous communication port for AC phase conductors or bridge rectifier output plus terminal；Master control LED power is by data to be synchronized and together
Walk datum of the signal of the synchronous communication port of signal based on synchronizing signal itself and carry out signal modulation, as synchronizing signal
And exported by synchronous communication port, LED power to be synchronized is by analyzing the synchronizing signal of synchronous signal port and the ginseng of itself
Examine level demodulation and go out synchronous signal；LED power synchronous communication port has synchronous signal output end and the synchronizing signal defeated at the same time
Enter the function at end, synchronous signal output end and synchronous signal input end share same synchronous communication port, as one of LED
When power configuration is master control LED power, this LED power synchronous communication port is configured to synchronous signal output end；When being configured to treat
During synchronous LED power supply, LED power synchronous communication port is configured to synchronous signal input end；It is additionally provided with the master control LED power
Produce the light modulation process circuit of synchronizing signal.
2. the LED power according to claim 1 synchronous method of solid conductor synchronization, it is characterised in that LED power is same
It is either simplex or semiduplex mode to walk communication port communication single power mode in same group section.
3. the LED power according to claim 2 synchronous method of solid conductor synchronization, it is characterised in that LED power is same
It is power switch signal, PWM dim signals or binary digital signal to walk communication port communication transfer signal.
4. the LED power according to claim 3 synchronous method of solid conductor synchronization, it is characterised in that the master control
Be additionally provided with zero passage detection module in LED power, zero passage detection module be used for realization detection supply voltage whether zero passage, will detection knot
Fruit is input to the master controller of master control LED power.
5. the LED power according to claim 4 synchronous method of solid conductor synchronization, it is characterised in that the signal
Modulate by way of the control terminal that data to be synchronized control silicon-controlled, triode, relay or MOSFET with exchanging phase
The output plus terminal of line or bridge rectifier realizes modulation, and master controller detects that zero passage detection module inputs current power voltage mistake
Data to be synchronized are exported during zero-signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610191267.2A CN105813258B (en) | 2016-03-30 | 2016-03-30 | A kind of synchronous method of LED power solid conductor synchronization |
Applications Claiming Priority (1)
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| CN201610191267.2A CN105813258B (en) | 2016-03-30 | 2016-03-30 | A kind of synchronous method of LED power solid conductor synchronization |
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| CN105813258A CN105813258A (en) | 2016-07-27 |
| CN105813258B true CN105813258B (en) | 2018-04-17 |
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| CN107801269B (en) * | 2016-09-06 | 2019-07-26 | 比亚迪股份有限公司 | LED illumination dimming device and vehicle |
| CN109936894B (en) * | 2019-01-30 | 2021-10-01 | 浙江创意声光电科技有限公司 | Fusion media light control method and system |
| AT17211U1 (en) * | 2020-04-06 | 2021-09-15 | Tridonic Gmbh & Co Kg | LED module system |
| TWI790709B (en) | 2021-04-16 | 2023-01-21 | 國立大學法人筑波大學 | Sintered body for radiation shielding material, radiation shielding material, and method for producing the same |
| CN113395806B (en) * | 2021-04-27 | 2023-01-24 | 青岛威奥轨道股份有限公司 | Synchronous flashing circuit of railway tail lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7116294B2 (en) * | 2003-02-07 | 2006-10-03 | Whelen Engineering Company, Inc. | LED driver circuits |
| CN202276515U (en) * | 2011-10-10 | 2012-06-13 | 杭州罗莱迪思照明系统有限公司 | Wireless linkage device |
| CN202335020U (en) * | 2011-11-29 | 2012-07-11 | 叶军 | Light-emitting diode (LED) driving circuit and LED driving chip |
| CN104488182B (en) * | 2012-07-26 | 2017-07-11 | 奥斯兰姆施尔凡尼亚公司 | Flyback AC DC converters |
| CN102984873B (en) * | 2012-12-27 | 2018-07-20 | 莱得圣智能科技（上海）有限公司 | One wire system intelligently takes electric electronic dimming system |
| CN203574896U (en) * | 2013-10-28 | 2014-04-30 | 深圳迈睿智能科技有限公司 | LED driving power supply with networking function |
| CN104837267B (en) * | 2015-05-12 | 2018-09-18 | 金红涛 | Multichannel light modulating device |
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Address after: 2, 3, 3 building, 380 Xiangshan Avenue, Luotian community, Songgang street, Shenzhen, Guangdong, Baoan District 518105, China Applicant after: SHENZHEN MERRY INTELLIGENT TECHNOLOGY CO., LTD. Address before: 518103, A building, Baoan District District, Fenghuang industrial first industrial zone, Fenghuang street, Fuyong, Guangdong, Shenzhen, Fourth Applicant before: SHENZHEN MERRY INTELLIGENT TECHNOLOGY CO., LTD. |
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