CN108366467A - Single firewire signal light adjusting circuit - Google Patents
Single firewire signal light adjusting circuit Download PDFInfo
- Publication number
- CN108366467A CN108366467A CN201810431588.4A CN201810431588A CN108366467A CN 108366467 A CN108366467 A CN 108366467A CN 201810431588 A CN201810431588 A CN 201810431588A CN 108366467 A CN108366467 A CN 108366467A
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- China
- Prior art keywords
- signal
- firewire
- driver
- resolution
- light adjusting
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of single firewire signal light adjusting circuit disclosed by the invention, it is characterised in that：Including be arranged panel-switch end signal generator and the signal resolution and driver in load end are set, signal generator list connects firewire, firewire alternating current is converted to dim signal by signal generator after receiving control signal, after signal resolution and driver receive dim signal and sampling analysis, pulsewidth modulation is carried out to the firewire alternating current of input signal parsing and driver, realize constant current output to LED light, light modulation of the signal completion to LDE is controlled by change, farther out due to dim signal transmission range, reduce signal decaying, increase anti-interference ability, dim signal can export zero volts and realize thoroughly shutdown LED light, and signal generator is equipped with the communication module of connection master controller, utilize the multiple single firewire signal light adjusting circuits of master controller team control, save switch panel and wiring.
Description
Technical field
The present invention relates to circuit switched domains, and in particular to a kind of list firewire signal light adjusting circuit.
Background technology
Single firewire power supply refers to controlling firewire (L lines) just with the concatenated switch of lamps and lanterns, in the zero curve that is not directly connected
The direct power supply of electronic switch, intelligent switch and the super switch installed to metope is realized under the premise of (N lines).
The two-wire system electronic switch (hereinafter referred to as single-fire-wire electronic switch) of single wire input/output has broad application prospects：
On the one hand it can be with switch on wall very universal in direct substitution household, and installation and replacement are all very convenient；On the other hand may be used also
To conveniently realize remote control or intelligent control (the ZigBee intelligent switch in such as smart home, with the remote control of wireless line, touch sense
Functions should be waited).Just because of only single wire input/output, switch be closed when, switch ends voltage is almost nil, electronic switch itself
Power supply is difficult to solve；And by switching controlled unpredictable workloads, when load is energy-saving lamp or LED lamp, switch
Having faint electric current when shutdown and flowing through makes energy-saving lamp or LED lamp flashing.
Invention content
Technical problem to be solved by the invention is to provide a kind of convenient and safe, the operation is stable of wiring and jamproof single fire
Line signal light adjusting circuit.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of list firewire signal light adjusting circuit, it is special
Sign is：Including being separately positioned on the signal generator at panel-switch end and the signal resolution and driver in load end being arranged,
The signal generator and signal resolution and driver are separately connected firewire, and the signal generator receives external control signal
Firewire alternating current is converted into dim signal afterwards and is sent to signal resolution and driver, the signal resolution and driver receive
After dim signal and sampling analysis, the firewire alternating current to inputting the signal resolution and driver carries out pulsewidth modulation, described
Signal resolution and driver output constant current electricity change the signal resolution by adjusting control signal and driver are defeated to LED light
Go out the size of Constant Electric Current, realizes the light modulation to LDE lamps.
Preferably, the communication module of external master controller is equipped in the signal generator, the communication module, which receives, to be come
From the control signal of external master controller, the master controller can connect the signal of multiple single firewire signal light adjusting circuits simultaneously
Generator.Preferably, the copped wave electricity of the prime microcontroller in the signal generator equipped with connecting communication module and connection firewire
Road, the chopper circuit are provided with zero sample device with firewire, and the zero sample device is connected with the prime microcontroller.
Preferably, the chopper circuit is silicon-controlled chopper circuit, and the communication module and the prime microcontroller are outer
The input of 24V constant voltage DCs is connect, the communication module is RS485 interfaces.
Preferably, the signal resolution and driver include sampler, rear class microcontroller, rectifier filter and constant-current voltage-stabilizing
Device, the sampler receive the dim signal and carry out sampling processing, then export to the rear class microcontroller, the rectification
The AC conversion of firewire is constant-current voltage-stabilizing output current by filter and constant current stabilizer, and is exported to LED light.
Preferably, the dim signal exports the voltage signal of 0~3.3V extremely after the sampling processing of the sampler
The rear class microcontroller, the pulse-width signal of the rear class microcontroller the output phase duty ratio corresponding.
Compared with the prior art, the advantages of the present invention are as follows be divided into signal hair using by the way that single firewire of transmission is switched road
Raw device and signal resolution and driver, signal generator are set in 86 bottom case panel-switches of transmission, signal resolution and driving
Device is set to LED light end, and the dimming signal voltage of transmission is higher relative to the single firewire switch of transmission, and electric signal decaying is smaller, resists
Interference performance is strong.When dim signal is 0V, exported after the pulsewidth modulation of signal resolution and the rear class microcontroller of driver
Stable 0V voltages, to solve the problems, such as that traditional single firewire light modulation can not be turned off thoroughly.Using master controller connection and simultaneously
The signal generator for controlling multiple single firewire switching circuits reduces the quantity of switch panel and wiring, convenient and practical.
Description of the drawings
Fig. 1 is a kind of schematic block diagram of single firewire signal light adjusting circuit of the present invention.
Fig. 2 be the present invention a kind of single firewire signal light adjusting circuit in signal generator schematic block diagram.
Fig. 3 is the schematic block diagram of signal resolution and driver in a kind of single firewire signal light adjusting circuit of the present invention.
Fig. 4 be the present invention a kind of single firewire signal light adjusting circuit in dim signal waveform diagram.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
Such as a kind of single firewire signal light adjusting circuit of Fig. 1, including it is separately positioned on 1 He of signal generator at panel-switch end
Signal resolution and driver 2 in load end is set, and signal generator 1 is connected with signal resolution and driver 2, and signal occurs
Device 1 and signal resolution and driver 2 are separately connected firewire, the also external master controller 3 of signal generator 1, the output control of master controller 3
For signal processed to signal generator 1, master controller 3 can connect multiple single firewire signal light adjusting circuits simultaneously, save and fitted up
The installation of switch panel and wiring in journey.The communication module for receiving control signal, signal generator 1 are equipped in signal generator 1
Dim signal is obtained after firewire alternating current is carried out copped wave processing according to control signal, the voltage effective value range of dim signal exists
In 0~220V, parsing and driver 2 receive the electric signal after dim signal to firewire and carry out pulsewidth modulation, pulsewidth modulation
Duty ratio is according to the big minor adjustment of dim signal, and the constant current output driving LED light after pulsewidth modulation, realization dim signal is to LED
The luminous adjusting of lamp.
The logical blocks figure of signal generator 1 as shown in Figure 2, signal generator 1 further include connecting communication module
The chopper circuit 14 of prime microcontroller 12 and connection firewire, in the present embodiment, the communication module in signal generator 1 is RS485
Interface 11, external RS485A lines and RS485B lines are to master controller 3, when master controller 3 is defeated by RS485A lines and RS485B lines
Go out coding, after the reception of signal generator 1 of multiple list firewire signal light adjusting circuits, the identification of signal generator 1 of corresponding coding is simultaneously
And control signal is obtained, control signal transmission is silicon-controlled that connection prime is provided between firewire to the processing of prime microcontroller 12
The zero sample device 13 of microcontroller 12, zero sample device 13 are connected with prime microcontroller 12 simultaneously.Firewire alternating current passes through every time
When zero crossing voltage, zero sample device 13 sends an indication signal to prime microcontroller 12, and prime microcontroller 12 is by the period
Property indication signal combine control signal, generate a postpones signal and be sent to chopper circuit, final realize is per zero passage voltage
Postpones signal is sent to the output of chopper circuit 14, makes the electric signal of the sinusoidal waveform of 14 output line of fire of chopper circuit that zero passage be decapitated
The voltage waveform of delay period after point, it is preferable that chopper circuit 14 is silicon-controlled chopper circuit, such as Fig. 4 in the present embodiment
It is shown the waveform diagram of dim signal, T is the period of firewire alternating current, and t0 is delay time, each week of dim signal
The voltage signal of 0~t0 and T/2~T/2+t0 in phase T are decapitated, real by controlling the size of Signal Regulation delay time t0
The virtual value of output dimming signal voltage is now adjusted, at this time the voltage effective value of dim signal ranging from 0~220V.
Further, prime microcontroller 12 and the external 24V constant voltage sources of RS485 interfaces 11.
Further, chopper circuit could alternatively be metal-oxide-semiconductor chopper circuit.
Further, the communication module in signal generator 1 is wireless module, can be that Zigbee receivers or WiFi connect
Receive device or Z-Wave receivers.
Signal resolution and driver 2 in a kind of single firewire signal light adjusting circuit as shown in Figure 2, including sampler 21, after
Grade microcontroller 22, rectifier filter 23 and constant current stabilizer 24, sampler 21 receive the dim signal that signal generator 1 generates,
Rear class microcontroller 22 is input to after sampling processing, rectifier filter 23 and constant current stabilizer 24 connect firewire and zero curve and will
The alternating voltage of 220V is converted into constant current output, and constant current stabilizer 24 is also connected with rear class microcontroller 22, constant current stabilizer 24
Output end be connected with LED light.
Rectification circuit, bleeder circuit, filter circuit and integration sampling circuit are equipped in sampler 21 successively, voltage is effective
Dim signal of the value in the sections 0~220V is converted to the electric signal in the sections 0~3.3V, and rear class microcontroller 22 receives 0~
It is real by the operation of rear class microcontroller 22 according to the ratio of the electric signal size and 3.3V after input electrical signal in the sections 3.3V
Existing rear class microcontroller 22 exports the pulse-width signal of corresponding scale, and pulse-width signal is transmitted to constant current stabilizer 24,
Constant current stabilizer 24 adjusts the size of constant current output according to the duty ratio of pulse-width signal, to adjust the output to the electricity of LED
Size is flowed, realizes the light modulation to LED light.
Further, the precision of sampler 21 uses 12, improves the acquisition precision of electric signal.
It is divided into signal generator 1 and signal resolution and driver 2, signal generator by the way that single firewire of transmission is switched road
1 is set in 86 bottom case panel-switches of transmission, and signal resolution and driver 2 are set to LED light end, and transmission is effective between the two
It is worth the dim signal in the sections 0~220V, therefore higher relative to the single firewire switch of transmission in the dimming signal voltage of transmission,
Smaller, the strong antijamming capability of electric signal decaying.
When dim signal is 0V, exported after the pulsewidth modulation of signal resolution and the rear class microcontroller 22 of driver 2
Stable 0V voltages, to solve the problems, such as that traditional single firewire light modulation can not be turned off thoroughly.It is realized using the connection of master controller 3 same
When control the signal generators 1 of multiple single firewire switching circuits, reduce the quantity of switch panel and wiring, it is convenient and practical.
Although the preferred embodiment of the present invention described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Appoint made by all within the spirits and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of list firewire signal light adjusting circuit, it is characterised in that：Signal generator including being separately positioned on panel-switch end
(1) and signal resolution and driver (2) in load end be set, the signal generator (1) and signal resolution and driver (2)
It is separately connected firewire, the signal generator (1) receives and firewire alternating current is converted to dim signal after external control signal
And it is sent to signal resolution and driver (2), after the signal resolution and driver (2) reception dim signal and sampling analysis,
Firewire alternating current to inputting the signal resolution and driver (2) carries out pulsewidth modulation, the signal resolution and driver (2)
Output constant current electricity changes the big of the signal resolution and driver (2) output constant current electricity to LED light, by adjusting control signal
It is small, realize the light modulation to LDE lamps.
2. a kind of single firewire signal light adjusting circuit as described in claim 1, it is characterised in that：In the signal generator (1)
Communication module equipped with external master controller (3), the communication module receive the control signal from external master controller (3),
The master controller (3) can connect the signal generator (1) of multiple single firewire signal light adjusting circuits simultaneously.
3. a kind of single firewire signal light adjusting circuit as claimed in claim 2, it is characterised in that：In the signal generator (1)
The chopper circuit (14) of prime microcontroller (12) and connection firewire equipped with connecting communication module, the chopper circuit (14) and fire
Line is provided with zero sample device (13), and the zero sample device (13) is connected with the prime microcontroller (12).
4. a kind of single firewire signal light adjusting circuit as claimed in claim 3, it is characterised in that：The chopper circuit (14) is can
Control silicon chopper circuit, the communication module and the external 24V constant voltage DCs input of the prime microcontroller (12), the communication mould
Block is RS485 interfaces (11).
5. a kind of single firewire signal light adjusting circuit as described in claim 1, it is characterised in that：The signal resolution and driver
(2) include sampler (21), rear class microcontroller (22), rectifier filter (23) and constant current stabilizer (24), the sampler
(21) it receives the dim signal and carries out sampling processing, then export to the rear class microcontroller (22), the rectifying and wave-filtering
Firewire AC conversion is constant-current voltage-stabilizing output current by device (23) and constant current stabilizer (24), and is exported to LED light.
6. list firewire signal light adjusting circuit according to claim 5, it is characterised in that：The dim signal is adopted described in passing through
The voltage signal of 0~3.3V is exported after the sampling processing of sample device (21) to the rear class microcontroller (22), the rear class microcontroller
(22) pulse-width signal of the output phase duty ratio corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431588.4A CN108366467A (en) | 2018-05-08 | 2018-05-08 | Single firewire signal light adjusting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810431588.4A CN108366467A (en) | 2018-05-08 | 2018-05-08 | Single firewire signal light adjusting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108366467A true CN108366467A (en) | 2018-08-03 |
Family
ID=63011650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810431588.4A Pending CN108366467A (en) | 2018-05-08 | 2018-05-08 | Single firewire signal light adjusting circuit |
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| CN (1) | CN108366467A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819568A (en) * | 2019-03-29 | 2019-05-28 | 广州腾龙电子塑胶科技有限公司 | A kind of more level based on two lines correspond to multi channel signals Transmission system |
| CN115002959A (en) * | 2022-05-23 | 2022-09-02 | 深圳市鸿远微思电子有限公司 | Digital dimming LED lamp driving circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281849A (en) * | 2013-06-26 | 2013-09-04 | 湖南工业大学 | Light-adjusting device and method of LED illuminating lamp |
| CN103298221A (en) * | 2013-07-01 | 2013-09-11 | 湖南工业大学 | Dimming circuit and method of LED (Light Emitting Diode) lighting lamp |
| CN104837249A (en) * | 2015-05-08 | 2015-08-12 | 湖南工业大学 | Low-harmonic dimming method of wall-controlled LED lamp |
-
2018
- 2018-05-08 CN CN201810431588.4A patent/CN108366467A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281849A (en) * | 2013-06-26 | 2013-09-04 | 湖南工业大学 | Light-adjusting device and method of LED illuminating lamp |
| CN103298221A (en) * | 2013-07-01 | 2013-09-11 | 湖南工业大学 | Dimming circuit and method of LED (Light Emitting Diode) lighting lamp |
| CN104837249A (en) * | 2015-05-08 | 2015-08-12 | 湖南工业大学 | Low-harmonic dimming method of wall-controlled LED lamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819568A (en) * | 2019-03-29 | 2019-05-28 | 广州腾龙电子塑胶科技有限公司 | A kind of more level based on two lines correspond to multi channel signals Transmission system |
| CN109819568B (en) * | 2019-03-29 | 2024-02-13 | 广州腾龙健康实业股份有限公司 | Multi-level corresponding multi-channel signal transmission system based on two lines |
| CN115002959A (en) * | 2022-05-23 | 2022-09-02 | 深圳市鸿远微思电子有限公司 | Digital dimming LED lamp driving circuit |
| CN115002959B (en) * | 2022-05-23 | 2023-04-07 | 深圳市鸿远微思电子有限公司 | Digital dimming LED lamp driving circuit |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |
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| RJ01 | Rejection of invention patent application after publication |