CN206181456U - Optical signal generator is transferred to LED pulse width dimming control system and LED pulse width - Google Patents
Optical signal generator is transferred to LED pulse width dimming control system and LED pulse width Download PDFInfo
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- CN206181456U CN206181456U CN201621260802.7U CN201621260802U CN206181456U CN 206181456 U CN206181456 U CN 206181456U CN 201621260802 U CN201621260802 U CN 201621260802U CN 206181456 U CN206181456 U CN 206181456U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model discloses an optical signal generator is transferred to LED pulse width dimming control system and LED pulse width. This signal generator contains the control of the switching in short -term branch road that connects in parallel on lamps and lanterns power supply major loop, contain electric capacity and switching control switch in this control branch road. The dimming control system contain communication adjust luminance drive power supply with signal generator, drive power supply is adjusted luminance including detection circuitry, singlechip and LED drive power supply to communication. The voltage generation that signal generator passes through on the switching electric capacity messenger lamps and lanterns power supply major loop in the time of need adjusting luminance is appointed undulant, communication is adjusted luminance the dimming control end that drive power supply detected behind this voltage fluctuation to LED drive power supply and is sent corresponding control signal and realize adjusting luminance. The dimming control signal of this product by signal generator forms and only through power supply line transmission to the communication drive power supply that adjusts luminance, need not additionally increases the control signal line, and the signal interference that has avoided the length wiring probably to bring is suitable for newly -built lighting system and to the transformation of upgrading of current lighting system.
Description
Technical field
This utility model is related to LED illumination control field, occurs more particularly to a kind of LED pulsewidths dim signal
Device and a kind of LED pulsewidths dimming control system.
Background technology
LED is lamp terminal light source extremely common on the market.During work, LED need to configure LED drive power (or
Claim LED drive unit), the alternating current power supply for electrical network to be provided is converted into the DC source needed for LED lights.Prior art
In frequently with LED drive power be that LED inverse becomes driving power supply or LED high-voltage driver element.
In the market the function of LED is relatively simple, does not generally possess dimming function, especially far distance light regulation function.
The technical scheme of Light modulating type fluorescent lamp of also sporadically appearing once in a while is disclosed：The Chinese invention patent of such as Publication No. CN101646296A
Document, its scheme carries out Control on Communication by power carrier, has the disadvantage that equipment is more complicated and control signal quality cannot ensure,
Most probably it is interfered and misoperation occurs, meanwhile, electric ballast and fluorescent lamp long-time full power operation also cause electronics
The life-span of ballast and light fixture is affected.Additionally, LED is due to needing constant current-supplying, otherwise easy aged deterioration, thus cannot
It is dimmed by the way of routine, direct adjustment light fixture both end voltage.Market survey finds that existing LED is usual
It is still using the i.e. permanent Brightness Duty of constant power output.
Utility model content
To overcome the not enough above of prior art, the purpose of this utility model to be that a kind of cost of offer is lower, work
More reliable LED pulsewidths dimming control system and its LED pulsewidth dim signal generators.
The technical side of this utility model LED pulsewidth dim signal generators introduced below and LED pulsewidth dimming control systems
Case：
This utility model LED pulsewidth dim signal generators, have specifically included and have been powered master for being connected in parallel on LED illumination lamp
Switching controlling brancher in short-term on loop, its effect is after controlled throwing/cut to produce the voltage on residing main circuit power supply to contain
There are one or more fluctuations of default pulsewidth duration；The throwing of capacitor and the capacitor/cut is included in the controlling brancher
Controlling switch；The capacity configuration of the capacitor, it will usually specifically determine depending on the size of LED lamp load, existed with capacitor
Voltage 0.5~the 20V of rise/fall on residing main circuit power supply is set to be advisable after throwing/cutting；Throw/cut duration every time generally may be used
It is set to 0.2s~300s.Switching control in short-term belongs to art technology technology and general knowledge, and its concrete scheme can be by art
Technical staff is used in combination the actual designed, designed/selection of occasion, will not be described here.This utility model LED pulsewidth dim signals
Generator is used to produce LED pulsewidth dim signals, may be installed any place of LED illumination lamp main circuit power supply；Existing LED
The LED drive power of conventional configuration only need to be transform as lamp (or being changed to adopt) LED communication dimming drive power hereinafter, with
This utility model LED pulsewidth dim signal generators are used cooperatively, you can easily realize that LED illumination is dimmed.
This utility model LED pulsewidth dimming control systems, have specifically included LED pulsewidth dim signal generating units and at least
One LED communication dimming drive power, LED pulsewidths dim signal generating unit therein adopts LED pulsewidths recited above
The circuit structure of dim signal generator；And each LED communication dimming drive power, including being provided with sequentially connected voltage
Detection circuit, single-chip microcomputer, pwm signal drive circuit and the LED drive power for driving LED illumination；The LED drive power
Can using LED illumination drive circuit of the prior art (such as LED inverse becomes driving power supply or LED high-voltage driver element), and
Wherein draw brightness adjustment control end (this is art technology general knowledge)；The voltage detecting circuit is included for LED illumination lamp
Supply voltage on tool main circuit power supply is monitored and is sent to the single-chip microcomputer；The single-chip microcomputer, monitors for basis
The supply voltage fluctuation, by system it is set in advance rule (for example by systemic presupposition SCM PWM output signal with
Corresponding relation between the supply voltage waveform running parameter for monitoring), by described in the pwm signal outfan Jing of single-chip microcomputer
Pwm signal drive circuit to the brightness adjustment control end of the LED drive power sends corresponding pwm control signal.The pwm signal
Drive circuit also can be substituted with 0~10VDC signal drive circuits.When the LED drive power use it is of the prior art
When LED inverse becomes driving power supply, the control signal output of the pwm signal drive circuit is become into driving power supply with the LED inverse
In Current Negative Three-Point Capacitance loop be connected.
This utility model LED pulsewidths dimming control system is used to be supported the use with LED illumination lamp, realizes that LED illumination is adjusted
Light.The following is a kind of using method for enumerating：During LED normal illumination, make described in LED pulsewidth dim signal generating units
Throw/cut controlling switch to remain off and make the capacitor open from grid disruption；Needing to adjust LED illumination lamp
Light time, make the throwing in LED pulsewidth dim signal generating units/cut controlling switch close (such as 5 seconds) in short-term and make described
Capacitor accesses electrical network and then makes the supply voltage of LED illumination lamp fluctuate, and voltage detecting circuit monitors the power supply electricity
The fluctuation of pressure simultaneously feeds back to single-chip microcomputer, and single-chip microcomputer can be by system rule set in advance (such as voltage change, change in voltage frequency
Dimming control signal that degree, regular voltage pulsation pulsewidth duration or other voltage waveform running parameters are exported with single-chip microcomputer and
Corresponding relation etc. of light modulation amplitude, light modulation gear) pwm signal drive circuit described in Jing sends corresponding to the LED drive power
Pwm control signal, and then accordingly adjust the output current of the LED drive power, realize the light modulation to LED.More than make
It is only to enumerate with method, according to art technology general knowledge, the controlling brancher of switching in short-term is in normal illumination in access
State and when needing to dim, the scheme that is off is obviously also feasible.
Due to being installed in any one place of LED illumination lamp main circuit power supply, this utility model by the way of parallel connection
LED pulsewidth dim signal generators (i.e. described LED pulsewidths dim signal generating unit) extremely suitable small modular, it is and described
LED communication dimming drive power is equally prepared into stand-alone product and is produced and installed, and produces and sells and transports so as to not only facilitate
Defeated, more convenient regarding is entered using scene actual (such as installation site, depending on lamp load size condenser capacity is carried out/change configure)
Row Matching and selection, extremely facilitates and installs and safeguard.
The technical solution of the utility model is not only applicable to single-phase circuit, is also applied for three-phase circuit.When being applied to three-phase
During circuit system, each LED illumination lamp is each equipped with LED communication dimming drive power and corresponding LED pulsewidths dim signal is sent out
Raw unit (i.e. described LED pulsewidths dim signal generator), now the capacitor in the controlling brancher can adopt three phase capacitance
Device is simultaneously connected using the connection of △ types or Y types；Single-chip microcomputer in each LED communication dimming drive power is according to the corresponding LED for monitoring
The fluctuation of supply voltage on lighting main circuit power supply, by preset rules the brightness of corresponding LED illumination lamp load is adjusted.Adopt
Equal or unequal value, concrete root are can be configured to each phase capacitance in the three-phase capacitor of the connection of △ types or the connection of Y types
Determine according to the size of the LED load of place phase.
In such scheme, LED pulsewidth dim signal generating units (i.e. described LED pulsewidths dim signal generator) are single-phase
The controlling brancher of switching in short-term arranged in circuit can be only one, or comprising a plurality of；When same circuitry phase
When the controlling brancher of switching in short-term of middle setting has a plurality of, the capacity of capacitor can be configured to identical or not phase on each bar branch road
With value, throw/cut the different voltage pulsation of generation multi gear, the different voltages of formation with (combination) that will pass through without capacity capacitor and become
Change waveform parameter and the further different light modulation amplitude of correspondence and/or light modulation gear, or even realize stepless dimming.
As the further optimization to such scheme, in the controlling brancher of switching in short-term capacitor protector is also in series with
Part, such as fuse or chopper.
To sum up, this utility model LED pulsewidths dim signal generator and LED pulsewidth dimming control systems have following features
And advantage：
1st, LED pulsewidths dim signal is produced by way of simple switched capacitor and then brightness adjustment control is realized, due to
The dimming control signal can be provided on the spot, therefore hardware input cost is extremely low；Simultaneously as without the need for additionally increasing control signal
Line, it is to avoid over long distances connect up the signal interference that may be brought, easily realize far distance light regulation control, can greatly save or even avoid
Again cloth, the construction cost sunken cord, are not only adapted to the structure of brand-new illuminator, are also extremely applicable to existing road and public
The upgrading of the illuminators such as occasion；
2nd, the generating mechanism of brightness adjustment control instruction is used a capacitor as, because it belongs to short time duty, therefore is worked
Reliability is high, while it for electricity consumption using will not be to being brought obvious harmful effect；Meanwhile, light modulation amplitude can be held by the way that switching is different
The electric capacity of amount is simultaneously configured with suitable light modulation rule (such as light modulation amplitude size, light modulation gear and switching duration, voltage pulsation width
Degree, voltage pulsation pulsewidth duration, the corresponding relation of voltage fluctuation waveform) realize, extremely facilitate according to actual autonomous using scene
Arrange, strong interference immunity facilitates implementation stepless dimming；
3rd, LED pulsewidths dim signal generator (i.e. LED pulsewidths dim signal generating unit) is due to being using side in parallel
Formula is arranged on LED illumination lamp main circuit power supply, thus the visual scene of installation site it is actual make at any time, arbitrarily adjustment, in addition
It is equally convenient with the LED communication dimming drive power and be adapted to be prepared into small modular product and produced and used, more
Contribute to reducing installing and maintenance cost, be extremely easy to this utility model LED pulsewidth dim signal generators and the light modulation of LED pulsewidths
Control system is popularized LED dimming energy-savings field.
Description of the drawings
Fig. 1 a, b are the circuit groups of the different embodiments of two, this utility model LED pulsewidth dim signals generator and its application
Into principle schematic.
Fig. 2 is one embodiment of this utility model LED pulsewidth dim signal generators and LED pulsewidth dimming control systems
Circuit theory of constitution schematic diagram.
Fig. 3 a- Fig. 3 d are this utility model LED pulsewidth dim signal generators and LED pulsewidth dimming control system applications
In the circuit theory of constitution schematic diagram of four embodiments of three-phase system.
Specific embodiment
Below in conjunction with drawings and Examples to this utility model LED pulsewidth dim signal generators and the light modulation control of LED pulsewidths
System processed is further described.
Fig. 1 a, b are the circuit groups of the different embodiments of two, this utility model LED pulsewidth dim signals generator and its application
Into principle schematic.As illustrated, control is thrown/cut to this utility model LED pulsewidth dim signals generator mainly by capacitor C with it
The series circuit composition that system switch KJ is formed, by this signal generator and LED illumination lamp main circuit power supply is connected in during installation
It is upper.Because the effect of this signal generator is to produce pulsewidth brightness adjustment control by switching KJ and controlling the throwing/cut of capacitor C
Signal, corresponding LED illumination lamp detects and dims control to realize that light modulation must also be configured with corresponding pulsewidth dimming control signal
The driving power supply (being named as in Fig. 1 " LED communication dimming drive power ") of function processed.This utility model LED pulsewidth dim signals
The capacity configuration of capacitor C described in generator, it will usually specifically determine depending on the size of LED lamp load, existed with capacitor C
The voltage rise/fall 0.5V~20V on residing main circuit power supply is set to be advisable after throwing/cutting.In view of this signal generator is generally only
For producing LED pulsewidth dimming control signals, therefore short time duty is may be designed as, opened using throwing/cut control when needing light modulation
Close KJ and this signal generator is accessed in short-term electrical network, be dialysis electrical network after signal generation.Depending on concrete situation, each of KJ is switched
Throwing/cut duration can generally be set to 0.2s~300s.
The series arm illustrated in Fig. 1 a only has one, but is needing to produce the voltage pulsations different compared with multi gear, formed not
With the simultaneously and then correspondingly different light modulation amplitude of voltage waveform running parameter and/or the occasion of light modulation gear, the series arm can
It is a plurality of to be set to as shown in Figure 1 b, and be identical or differ value by the capacity configuration of capacitor on each bar branch road.To improve
System rejection to disturbance performance, can also be capacitor after controlled throwing/cut by this utility model pulsewidth dim signal Generator Design
The voltage on residing main circuit power supply is set to produce one or more fluctuations containing default pulsewidth duration, to increase waveform change ginseng
Several polytropies；Even, during one of fluctuation pulsewidth included in the mains ripple for the switching in short-term being caused
It is long, the criterion formally started as dimming commands is preset in systems, and/or, it is default to deposit and between target dim amplitude or gear
In corresponding relation.When there is corresponding relation between pulsewidth duration and target dim amplitude or gear when fluctuating, due in prior art
Millisecond can be reached to the monitoring degree of accuracy of voltage pulsation duration, so even voltage pulsation duration in short-term can also be arranged
Into corresponding tens even hundreds of grade light modulation output currents, this means scheme now equivalent to being capable of achieving continuous, nothing
Level light modulation.
Fig. 2 is one embodiment of this utility model LED pulsewidth dim signal generators and LED pulsewidth dimming control systems
Circuit theory of constitution schematic diagram.As shown in Fig. 2 this utility model LED pulsewidths dimming control system is mainly dimmed by LED communication
Driving power supply (can integrated installation in LED lamp) and LED pulsewidth dim signal generating units (and can be connected in LED illumination lamp
Any place on tool main circuit power supply) composition；LED pulsewidths dim signal generating unit therein adopts LED as shown in Figure 1
The circuit theory of pulsewidth dim signal generator (has connected chopper QF as capacitor protection for its increase in the present embodiment
Device), and the LED communication dimming drive power mainly drives electricity by the voltage detecting circuit, single-chip microcomputer and LED that are sequentially connected
Source (this LED drive power can adopt LED inverse of the prior art to become the technical scheme of driving power supply or LED high-voltage driver element,
And brightness adjustment control end is set wherein) composition：Voltage detecting circuit is mainly used in the confession on LED illumination lamp main circuit power supply
Piezoelectric voltage is monitored and is sent to the single-chip microcomputer；Single-chip microcomputer is advance by system according to the fluctuation of the supply voltage for monitoring
The rule of setting is direct by the pwm signal outfan of single-chip microcomputer or Jing pwm signal drive circuits (can also adopt 0~10VDC
Signal drive circuit is substituted) send the brightness adjustment control end of corresponding pwm control signal to LED drive power.
Due to the LED communication dimming drive power in the present embodiment LED pulsewidth dimming control systems can pole easily with
LED lamp holder carries out being integrated to form integration product, and LED pulsewidth dim signals generating unit also preferably carries out modularized design and makes
For into independent LED pulsewidth dim signal generators, with more convenient for the installation of system, enforcement, while reducing system building, peace
Dress, maintenance cost, are favorably improved the operational reliability of system.
LED pulsewidth brightness adjustment control application systems in Fig. 1 a illustrated embodiments contain a LED pulsewidths dim signal to be occurred
Unit (i.e. LED pulsewidths dim signal generator) and several LED communication dimming drive powers, each LED communication light modulation drives electricity
Source correspondence drives different LED illumination lamps；When needing light modulation, LED pulsewidth dim signal generating units are to same supply line
The unification of several LED illumination lamps send dim signals.Because each LED illumination lamp is each equipped with respective LED communication
Dimming drive power, and single-chip microcomputer therein can be preset with identical/voltage waveform running parameter for differing and drive electricity with LED
Corresponding relation between the output current of source, then each LED communication dimming drive power receive after the dimming commands combine it is identical/no
Identical light modulation rule realizes corresponding light modulation to light fixture.The scheme of the present embodiment be excellently suitable for road and public arena illumination,
Landscape brightening system etc. needs the occasion for carrying out unifying light modulation and far distance light regulation.
Fig. 3 a- Fig. 3 d are this utility model LED pulsewidth dim signal generators and LED pulsewidth dimming control system applications
The circuit theory of constitution schematic diagram of four different embodiments when three-phase circuit.As illustrated, the LED pulsewidths in the present embodiment
Dimming control system is made up of several LED communication dimming drive powers and a LED pulsewidth dim signal generating unit, now
Capacitor in LED pulsewidth dim signal generating units can be using three-phase capacitor and using the connection of △ types or the connection of Y types.Using
Each phase capacitance in the three-phase capacitor that △ types connect or Y types connect can as needed be configured to equal or unequal value.
When using, the single-chip microcomputer of each LED communication dimming drive power on the corresponding LED illumination lamp main circuit power supply for monitoring according to supplying
The fluctuation of piezoelectric voltage, by preset rules the brightness of corresponding LED illumination lamp load is adjusted.
Above content is only some better embodiments of the present utility model for enumerating, it is impossible to be considered as limiting this practicality
New form of implementation.Equivalent variations and improvement that all one of ordinary skill in the art can make according to technical solutions of the utility model,
All should belong within the covering scope of technical solutions of the utility model.
Claims (10)
1.LED pulsewidth dim signal generators, it is characterised in that：Include for being connected in parallel on LED illumination lamp main circuit power supply
On switching controlling brancher in short-term, to make the voltage on residing main circuit power supply produce containing default pulsewidth after controlled throwing/cut
One or more fluctuations of duration；The throwing of capacitor and the capacitor/cut controlling switch is included in the controlling brancher；Institute
State the capacity configuration of capacitor, should cause its cause after throwing/cutting the voltage rise/fall 0.5 on residing main circuit power supply~
20V。
2. LED pulsewidths dim signal generator according to claim 1, it is characterised in that when this signal generator is applied to
During three-phase system, the capacitor in the controlling brancher is using three-phase capacitor and using the connection of △ types or the connection of Y types.
3. LED pulsewidths dim signal generator according to claim 2, it is characterised in that：Connected using the connection of △ types or Y types
Each phase capacitance in the three-phase capacitor for connecing is configured to equal or unequal value.
4. LED pulsewidth dim signal generators according to one of claims 1 to 3, it is characterised in that：In same circuitry phase
It is provided with described in one or more switching controlling brancher in short-term；The switching controlling brancher in short-term described in arrange in same circuitry phase
When having a plurality of, the capacity configuration of capacitor on each bar branch road is identical or differ value.
5. LED pulsewidths dim signal generator according to claim 4, it is characterised in that：The control of switching in short-term
Capacitor protection device is also in series with road.
6. LED pulsewidths dim signal generator according to claim 5, it is characterised in that：The capacitor protection device
For fuse or chopper.
7.LED pulsewidth dimming control systems, it is characterised in that：Include LED pulsewidth dim signal generating units and at least one
LED communication dimming drive power；
Each LED communication dimming drive power, including being provided with sequentially connected voltage detecting circuit, single-chip microcomputer, pwm signal
Drive circuit and the LED drive power for driving LED illumination；The LED drive power is provided with brightness adjustment control end；The voltage
Detection circuit includes for being monitored to the supply voltage on LED illumination lamp main circuit power supply and is sent to the monolithic
Machine；The single-chip microcomputer, for according to the fluctuation of the supply voltage for monitoring, by system rule set in advance monolithic being passed through
Pwm signal drive circuit described in the pwm signal outfan Jing of machine to the brightness adjustment control end of the LED drive power sends corresponding
Pwm control signal；
The LED pulsewidths dim signal generating unit is sent out using the LED pulsewidths dim signal as described in one of claims 1 to 3
Raw device.
8. LED pulsewidths dimming control system according to claim 7, it is characterised in that：The LED drive power includes
LED inverse becomes driving power supply or LED high-voltage driver element.
9. LED pulsewidths dimming control system according to claim 8, it is characterised in that：The LED inverse becomes driving power supply and sets
There is Current Negative Three-Point Capacitance loop；The control signal output of the pwm signal drive circuit is connected with the Current Negative Three-Point Capacitance loop.
10. LED pulsewidths dimming control system according to claim 7, it is characterised in that：The confession that the switching in short-term is caused
One of fluctuation pulsewidth duration included in piezoelectric voltage fluctuation, presets as sentencing that dimming commands formally start in systems
According to, and/or, it is default to there is corresponding relation and between target dim amplitude or gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260802.7U CN206181456U (en) | 2016-11-21 | 2016-11-21 | Optical signal generator is transferred to LED pulse width dimming control system and LED pulse width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260802.7U CN206181456U (en) | 2016-11-21 | 2016-11-21 | Optical signal generator is transferred to LED pulse width dimming control system and LED pulse width |
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| CN206181456U true CN206181456U (en) | 2017-05-17 |
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| CN201621260802.7U Active CN206181456U (en) | 2016-11-21 | 2016-11-21 | Optical signal generator is transferred to LED pulse width dimming control system and LED pulse width |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019084744A1 (en) * | 2017-10-31 | 2019-05-09 | 骆武宁 | Method for generating low-frequency power carrier control signal |
| WO2019084743A1 (en) * | 2017-10-31 | 2019-05-09 | 骆武宁 | Communication control power source |
| CN112637993A (en) * | 2020-12-09 | 2021-04-09 | 北京金晟达生物电子科技有限公司 | Dimming control system and working method thereof |
-
2016
- 2016-11-21 CN CN201621260802.7U patent/CN206181456U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019084744A1 (en) * | 2017-10-31 | 2019-05-09 | 骆武宁 | Method for generating low-frequency power carrier control signal |
| WO2019084743A1 (en) * | 2017-10-31 | 2019-05-09 | 骆武宁 | Communication control power source |
| CN111656663A (en) * | 2017-10-31 | 2020-09-11 | 骆武宁 | Method for generating low-frequency power carrier control signal |
| CN111656663B (en) * | 2017-10-31 | 2022-06-14 | 骆武宁 | Method for generating low-frequency power carrier control signal |
| US11528055B2 (en) | 2017-10-31 | 2022-12-13 | Wuning LUO | Method for generating low-frequency power carrier control signal |
| CN112637993A (en) * | 2020-12-09 | 2021-04-09 | 北京金晟达生物电子科技有限公司 | Dimming control system and working method thereof |
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