CN2862581Y - LED lamplight modulating system for airport aviation aid - Google Patents
LED lamplight modulating system for airport aviation aid Download PDFInfo
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- CN2862581Y CN2862581Y CN 200520109343 CN200520109343U CN2862581Y CN 2862581 Y CN2862581 Y CN 2862581Y CN 200520109343 CN200520109343 CN 200520109343 CN 200520109343 U CN200520109343 U CN 200520109343U CN 2862581 Y CN2862581 Y CN 2862581Y
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- dimmer
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Abstract
LED lamp light modulating system for airport aviation aid belongs to an electric light source control art. The utility model provides a light modulating method of the LED lamp. The device includes a light modulator and a LED light controller. The light modulator is essentially a voltage convetor having multilevel outputs, which different output voltages are defined as amplitude carrier signals for controlling the light intensity. The light controller mainly comprises a linear DC regulated power supply or a swich DC regulated power supply and a brightness signal seperating control circuit. The utility model is mainly used for LED lamp light modulating system for airport aviation aid, or LED lamp light group control system in other occasions.
Description
Technical field the utility model belongs to electric light source control field.
The present widely used airfield aid photosystem of background technology is by constituting with lower device: a dimmer output constant current, and several isolating transformers are connected on the output loop of dimmer, and the secondary coil of isolating transformer has connected light fixture.When the output current of dimmer changes, cause the variation of intensity of light by the variation of its isolating transformer secondary current that causes, thereby realized control lamplight brightness.This constant-current source mode only is applicable to the control of traditional light fixture such as high-pressure sodium lamp, metal halide lamp intensity of light.For the navigational lighting aid light adjusting system of LED light fixture of new generation, Shang Weijian has document announcement.
Summary of the invention the utility model proposes a kind of navigational lighting aid light adjusting system of the LED of use light fixture, comprises dimmer and LED lamp dimmer.
Be applicable to the navigational lighting aid light adjusting system of LED light fixture, its implementation is such: the primary structure of dimmer is a transformer with a plurality of lead-out terminals, two input is connected with power supply grid, output connects a change over switch, a plurality of lead-out terminals of transformer select one of them as output by change over switch lamplight brightness as required, and this output is sent to each light node by two transmission lines after can directly or connecting a rectifier rectification; Each light node is set up a lamp dimmer, and two inputs of all lamp dimmers are connected with two transmission lines of dimmer in parallel; The output of lamp dimmer connects the LED light fixture with the control lamplight brightness.Above-mentioned dimmer provides the LED lamp required electric energy on the one hand, and desirable lamplight brightness control signal is provided on the one hand; The electric energy that lamp dimmer then provides dimmer on the one hand is organized into the electrical quantity that is fit to specific LED lamp and supplies with light fixture, on the one hand the lamplight brightness control signal of dimmer is decoded with the control lamplight brightness.So just constituted whole LED lamp light control system.
The output of dimmer removes the required electric energy of supply load, a lamplight brightness control signal also is provided, this brightness control signal is just produced by the classification output voltage of dimmer, different voltage is represented different lighting level, selects one of them conduct output after rectification by change over switch lamplight brightness as required.Make lamplight brightness decline different to reduce supply load power with reducing voltage merely with tradition, the tapping voltage here carries clear and definite lamplight brightness control signal thereby its essence is exactly the voltage amplitude carrier signal, and is not only simple adjusting power output.Change over switch plays a part amplitude modulation(PAM).
The change over switch that satisfies application requirements both can be all kinds of armstrong's patent contacts, also can be the classes of semiconductors power switch of non-contact type.
The rectification of dimmer end means that its output is direct current, but also is feasible by the change over switch output AC directly.
The primary structure of lamp dimmer is made up of two functional units.One of them unit is a D.C. regulated power supply, will be organized into the required electrical quantity of LED light fixture from the electric energy of dimmer, by the controlled switch branch of some parallel connections each branch road to Combined Led Light Up.Here suppose that the LED light fixture is made up of a plurality of LED, for example by m LED series connection, the end by n such series arm is together in parallel again, the other end of branch road is as the combined lamp of control end.Another unit constitutes a brightness controller by one group of comparator and controlled switch, and comparator differentiates that the different voltages of dimmer produce control signals, removes to connect all series arms of combined lamp or part branch road with the control lamplight brightness by controlled switch.Two functional units of lamp dimmer are in parallel at input.
The D.C. regulated power supply of lamp dimmer can be a switch DC stabilized voltage power supply, also can be a linear direct current regulated power supply, preferably the former.They all can be selected in far-ranging serial power module.The voltage amplitude discriminator of lamp dimmer can also constitute by single-chip microcomputer or by other amplitude separator spare.
Obviously, dimmer is expressed the output voltage range of different lighting level must be within lamp dimmer can the specified input range of operate as normal, and the differential lamp dimmer that will make of tapping voltage is easy to differentiate and satisfy the power needs of corresponding lighting level.
Obviously, traditional airfield aid light light adjusting system and be not suitable for the light control of LED light fixture.Even with regard to method and apparatus, the scheme that the utility model proposed is also simple than traditional, and is economical and be easy to realize and safeguard.It not only can be used for airport LED light fixture navigational lighting aid light adjusting system, also can be used for the LED light fixture light group control system under other occasion.
Description of drawings Fig. 1 is the light adjusting system schematic diagram.
Fig. 2 is the schematic block circuit diagram of dimmer embodiment.
Fig. 3 is the schematic block circuit diagram of lamp dimmer embodiment.
Among the figure: 1. dimmer; 2. lamp dimmer; 3. many control ends LED light fixture; 4. many output transformers; 5. change over switch; 6. rectifier; 7. stabilized voltage power supply; 8. brightness controller.
Embodiment embodiment accompanying drawings of the present utility model is as follows.
Among Fig. 1, the input of dimmer (1) is connected with power supply grid, the output of dimmer is connected with lamp dimmer (2) input, and the lamp dimmer output is connected with LED lamp (3), and a plurality of lamp dimmers are connected with two output lines of dimmer in parallel.Constituted whole LED lamp light control system.
Fig. 2 is the practical structures of dimmer in the lamp light control system: a plurality of outputs of transformer (4) are connected to change over switch (5), and the output of change over switch is connected with rectifier (6), show that this is a routine direct current output.Obviously, the embodiment of interchange output dimmer can not connect rectifier (6) and only be made of transformer (4) and change over switch (5).The highest and the minimum voltage end of many output transformers secondary coil tap is that the specified input range with lamp dimmer adapts.Obviously, in order to adapt with the load power demand, the highest voltage output stage has been represented the full intensity level of light modulation, and minimum voltage output stage has been represented the minimum brightness level.Required brightness degree is set by change over switch.The simplest change over switch can be the manipulator dynamic formula as shown in Figure 2, and comparatively desirable change over switch should be replaced by the control circuit that semiconductor power switch or silicon-controlled device are formed.Certainly, when using the semiconductor device switch, be the effective ways that improve control of quality as conventional complementary circuit such as zero passage detection.Transformer has 5 lead-out terminals among the figure, shows that this embodiment has 5 grades dimming scope.
Fig. 3 is lamp dimmer embodiment in the lamp light control system: be made of power module of voltage regulation (7) and brightness controller (8).The input of power module of voltage regulation is connected to the output of dimmer, and the output of power module of voltage regulation is gone into end controlled switch in parallel, that output is branched off into each LED branch road by one group and powered to the LED light fixture; Brightness controller (8) constitutes a voltage amplitude discriminator by a plurality of comparators, therefore the input of comparator connects together the output voltage amplitude of carrying out of dimmer is differentiated, the output of comparator is connected to the break-make of the control end of controlled switch with each branch road of control combination formula LED light fixture (3), realizes the control of brightness.
Claims (3)
1. LED lamplight modulating system for airport aviation aid, in light adjusting system, the input of dimmer (1) is connected with power supply grid, the output of dimmer is connected with lamp dimmer (2) input, the lamp dimmer output is connected with LED lamp (3), it is characterized in that: a plurality of lamp dimmers are connected with two output lines of dimmer in parallel.
2. according to right 1 described LED lamplight modulating system for airport aviation aid, it is characterized in that: dimmer itself is a transformer (4) with a plurality of lead-out terminals, the output of transformer is connected to change over switch (5), and change over switch (5) output also can connect rectifier (6).
3. according to right 1 described LED lamplight modulating system for airport aviation aid, it is characterized in that: the primary structure of lamp dimmer is made up of two functional units, unit (7) can be a linear direct current regulated power supply, also can be a switch DC stabilized voltage power supply, its output be by the controlled switch branch of some parallel connections each branch road to LED lamp (3); Unit (8) can be a single-chip microcomputer or one group of comparator, and its input is in parallel with unit (7) input, and its output links to each other with each control end of controlled switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109343 CN2862581Y (en) | 2005-06-03 | 2005-06-03 | LED lamplight modulating system for airport aviation aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109343 CN2862581Y (en) | 2005-06-03 | 2005-06-03 | LED lamplight modulating system for airport aviation aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862581Y true CN2862581Y (en) | 2007-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520109343 Expired - Fee Related CN2862581Y (en) | 2005-06-03 | 2005-06-03 | LED lamplight modulating system for airport aviation aid |
Country Status (1)
| Country | Link |
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| CN (1) | CN2862581Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238772A (en) * | 2010-04-21 | 2011-11-09 | 武汉市鑫铸航科技有限责任公司 | Novel light level given device of light emitting diode (LED) navigation light |
-
2005
- 2005-06-03 CN CN 200520109343 patent/CN2862581Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238772A (en) * | 2010-04-21 | 2011-11-09 | 武汉市鑫铸航科技有限责任公司 | Novel light level given device of light emitting diode (LED) navigation light |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20100603 |