CN202172510U - Multi-channel LED (light-emitting diode) controlling and driving system - Google Patents

Multi-channel LED (light-emitting diode) controlling and driving system Download PDF

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Publication number
CN202172510U
CN202172510U CN2011202415044U CN201120241504U CN202172510U CN 202172510 U CN202172510 U CN 202172510U CN 2011202415044 U CN2011202415044 U CN 2011202415044U CN 201120241504 U CN201120241504 U CN 201120241504U CN 202172510 U CN202172510 U CN 202172510U
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CN
China
Prior art keywords
led
control
led lamp
driver module
drive
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Expired - Fee Related
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CN2011202415044U
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Chinese (zh)
Inventor
陈竞坤
章燕
冉宏宇
付海琴
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SUZHOU CHENGE ELECTRONICS CO Ltd
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SUZHOU CHENGE ELECTRONICS CO Ltd
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Abstract

The utility model provides a multi-channel LED (light-emitting diode) controlling and driving system, which comprises an LED lamp, an integration driving module, a control terminal and a network module, wherein the integration driving module is used for driving and controlling the LED lamp and comprises a power output port used for outputting energy to the LED lamp; the control terminal is used for operably controlling the operation of the integration driving module and the LED lamp; the network module is connected with the control terminal and at least one integration driving module; the integration driving module comprises a dedicated integration circuit; and the dedicated integration circuit comprises a control port used for sending a control signal to the LED lamp. The multi-channel LED controlling and driving system has the beneficial effects that the cost is low, the efficiency is high, and the energy consumption is low; the driving is stable, thereby prolonging the service life of an LED; and the wiring cost is low.

Description

A kind of LED multi-path control and drive system
Technical field
The utility model relates to the LED field, relates in particular to a kind of LED multi-path control and drive system.
Background technology
LED be called as the 4th generation lighting source or green light source, have energy-conservation, environmental protection, safety, the life-span is long, low consumption, low-heat, coloured light, white light, high brightness, waterproof, miniature, shockproof, be prone to light modulation, light beam is concentrated, and safeguards simple or the like characteristics.
In the face of global climate transition and continuous surging energy prices; National governments have all begun to classify the product of some highly energy-consumings as primary disabled for object; Like incandescent lamp is exactly the most tangible case, thereby LED comprehensively replaces incandescent light fitting has become trend of the times.Under this background, the LED application constantly expands wide, and the downstream demand is constantly vigorous.It throws light in family expenses, commercialization, high-grade hotel, and club, interior decoration, the automobile-used LED lamp, the solar LED street lamp aspect is used also and is constantly enlarged.Though LED lamp light fixture more in the past is with the obvious advantage, adjustable in order to bring into play it, advantages such as low consumption have also proposed requirements at the higher level to drive circuit and control circuit.
In order to light the LED lamp, need be the operating voltage of led chip with 220 volts of voltage transition of civil power, and provide one to drive and light the LED light fixture according to the desired Constant Direct Current of LED light-emitting diode and with this.In order to satisfy the job requirement of led chip; Existing technology generally is under the prerequisite that obtains 220 volts of supply power voltages of civil power, to insert transformer and rectifying and voltage-stabilizing constant flow module; And two positive and negative terminations of receiving the LED wick to the constant current output, thereby realize the workflow of LED.The driver module of this single lamp operation is because of factors such as cost, self power consumptions, and its energy conversion efficiency is generally not high, and simple again system also is that the sparrow may be small but it has all the vital organs, so cost is high.In addition, this single lamp system can only play a lamp light on and off, and for colour temperature, whether excess load to be, further brilliance control, and color mixture is just powerless, needs to set up expensive special lamp light control system.And owing to the PWM pulse-width signal sets in advance, so adjustment automatically in time in light of the circumstances.
In addition; In the prior art; The drive scheme of LED or adopt constant-current source shown in Figure 3, or adopt PWM pulse-width signal shown in Figure 4, that adopts that constant-current source can be best satisfies the LED lamp because the response characteristic of himself; Adopt pwm signal can obtain best brightness regulation effect, and not enough to some extent on the other hand accordingly.
In addition, in the prior art, the lamp group of LED and the information transportation between the control module adopt the serial/parallel row communication pattern of DALI and DMX usually; Thereby in various application scenarios such as Smart Home or public illuminations; Needing be separately the laying control circuit independently of LED, complex structure, cost rising.
The utility model content
The purpose of the utility model is to solve above-mentioned technical problem, and a kind of LED multi-path control and the drive system of a kind of low cost, low energy consumption is provided.
The purpose of the utility model realizes that with drive system it comprises through following a kind of LED multi-path control is provided: the LED lamp; Integrated driver module drives and control LED lamp, comprises the output port of power source to LED lamp output energy; Control terminal, the operation of integrated driver module of exercisable control and LED lamp; Mixed-media network modules mixed-media connects control terminal and at least one integrated driver module, and said integrated driver module comprises application-specific integrated circuit (ASIC), and said application-specific integrated circuit (ASIC) comprises the control port that sends control signal to the LED lamp.
Preferably, said integrated driver module also comprises the constant current constant voltage source by the pwm signal modulation, and said constant current constant voltage source is exported energy through said output port of power source to the LED lamp.
Preferably, said application-specific integrated circuit (ASIC) comprises many group control ports, and said each control port connects one group of LED lamp string respectively, and the control signal of each control port output is separate.
Preferably, said application-specific integrated circuit (ASIC) comprises one 4 bit register, and said integrated driver module carries out addressing to 16 groups of control ports at the most through 4 bit registers.
Preferably, said integrated driver module also comprises NE, and said NE comprises the module register, and said mixed-media network modules mixed-media is through a plurality of integrated driver module addressing of said module register pair.
Preferably, said addressing is carried out through ICP/IP protocol.
Preferably, application-specific integrated circuit (ASIC) also comprises the transducing signal access interface, and said transducing signal access interface connects external sensor to receive transducing signal.
Preferably, said transducer comprises temperature sensor, and said temperature sensor is collected the temperature information of LED lamp, and said application-specific integrated circuit (ASIC) offers the driving energy of corresponding LED lamp according to the temperature information adjustment that receives.
Preferably, the energy consumption of said integrated driver module self is smaller or equal to one of percentage of the energy consumption of all LED that it drove.
Preferably, intelligent terminal is computer or smart mobile phone or palmtop PC, has the control interface that supplies user's operation.
The beneficial effect of the utility model is mainly reflected in:
1, high efficiency, low energy consumption.Through test shows, the application-specific integrated circuit (ASIC) of the utility model (ASIC) only needs to consume 0.33 watt, just can drive the LED lamp of 16 passages up to 400 watts, and its conversion efficiency is greater than 99.9%.Drive the more energy-conserving and environment-protective of the driver module of the utility model with respect to traditional LED;
2, driving is stable, and the LED life-span is long.The integrated driver module of the utility model is different from traditional constant current, or the type of drive of pwm signal modulation, adopts the pwm signal modulation to combine constant voltage/current isolator, has proposed the third type of drive.It is convenient to the variation of Real Time Observation LED, thereby regulates the current/voltage of its driving, thus the reliability that strengthens LED with increase the service life.
3, wiring cost is low.The signal traffic interface of the utility model is broken through traditional DALI and the serial/parallel row communication pattern of DMX, adopts distribute widely controlled in wireless or TCP/IP of reality to control.The characteristics of this control model are the wiring costs of having saved control circuit, and directly adopt the existing network architecture to carry out interchange.
Description of drawings
Fig. 1 is the LED control system structured flowchart of the specific embodiment of the utility model.
Fig. 2 is the drive principle sketch map of the specific embodiment of the utility model.
Fig. 3 is traditional constant current control sketch map.
Fig. 4 is conventional P WM control sketch map.
Fig. 5 is the control sketch map of the integrated driver module of the utility model.
Embodiment
Address other technologies content, characteristics and effect about before the utility model, in detailed description, can clearly appear with embodiment.Yet those skilled in the art will recognize that the reference here the specific descriptions of accompanying drawing only be used for the example purpose, the utility model is not limited thereto.
With reference to Fig. 1, the LED control system of the specific embodiment of the utility model mainly comprises control terminal 4, integrated driver module 2, mixed-media network modules mixed-media 3 and LED lamp 1.LED lamp 1 is the final workpiece of whole system, is installed in various occasions, luminous lighting under the control of system; Integrated driver module 2 directly connects the LED lamp, for its conveying capacity with control, integrated driver module 2 connects many group LED lamp strings usually; Mixed-media network modules mixed-media 3 is the communication bridges between control terminal 4 and the integrated driver module 2, and a plurality of integrated driver modules 2 are connected to control terminal 4 through mixed-media network modules mixed-media 3; Control terminal 4 is coordinated the running of control whole LED control system, can be computer or smart mobile phone or palmtop PC and TV, special-purpose suitable devices such as controller, and control terminal 4 has the control interface that supplies user's operation.
With reference to Fig. 1 and Fig. 2; Integrated driver module 2 is the base unit of whole system with its at least one group of LED lamp string controlling; Be different from prior art, integrated driver module 2 has been integrated drive circuit and control circuit, controls LED multi-path lamp string simultaneously through a module.
The core of integrated driver module 2 is application-specific integrated circuit (ASIC), i.e. asic chip.ASIC is the abbreviation of Application-specific integrated circuit; Be meant the special requirement logic IC that designs according to special-purpose; In the utility model; Asic chip has multichannel output, forms many group control ports and sends control signal with correspondence, separate to the LED lamp, the many groups of control LED lamp string.And it can also receive PWM and constant current control through peripheral combinational circuit.Because Highgrade integration; This chip, be that application-specific integrated circuit (ASIC) has minimum shunt resistance, this makes the dynamical possibility that transforms into, and has avoided the power consumption heat dissipation problem of control system; Thereby obtain maximum power output and high conversion efficiency; Through test shows, the application-specific integrated circuit (ASIC) of the utility model (ASIC) only needs to consume 0.33 watt, just can drive the LED lamp of 16 passages up to 400 watts; Its conversion efficiency is greater than 99.9%, and the energy consumption of integrated driver module 2 self is smaller or equal to one of percentage of the energy consumption of all LED that it drove.Simultaneously, because many group control ports are separately independently, the magnitude of current of each output loop is adjustable continuously, and this makes and is easy to obtain compensation because of aging, temperature, the different brightness irregularities that caused of produce in factory technology between each led chip lamp string.
Concrete, application-specific integrated circuit (ASIC) is built-in with one 4 bit register, the 4 line SPI interfaces that are connected to the outside that 4 bit registers are corresponding.This interface mode extremely flexibly makes the addressing system of existing various controls all become possibility.Through the conversion of external circuit, application-specific integrated circuit (ASIC) can be accepted the addressing and the transfer mode of DMX, DALI or ICP/IP protocol.In the present embodiment, use ICP/IP protocol, application-specific integrated circuit (ASIC) links to each other with the external world through the guiding of the Ethnet/T100 network chip on the integrated driver module, and the addressing range of 4 line SPI interfaces is 2 4=16.The for example 192.168.1.1 among Fig. 1,192.168.1.16 etc.Thereby, be up to 16 road control ports in the present embodiment.
The output port of power source of integrated driver module 2 links to each other through the low pressure and low power line with LED lamp 1, and only listing three lamps among Fig. 1 is example, and in fact an integrated driver module 2 can drive 16 lamp strings, and its output voltage is specifically decided according to being with lamp string from 5 volts to 48 volts.The load of each unit is decided according to the lamp string of output, and its maximum load capacity is 400 watts, and single channel is output as 0.35-1A.
Integrated driver module 2 also comprises the constant current constant voltage source by the pwm signal modulation; This constant current constant voltage source is exported energy through said output port of power source to LED lamp 1; The drive principle of integrated driver module 2 has integrated constant-current driving and PWM drives two kinds of modes commonly used, and concrete is as shown in Figure 5, integrated driver module 2 takes out constant-current source from output the counter control end of delivering to PWM of feedback control signal; Fluctuation to constant-current source is partly finely tuned, i.e. adjustment district 5.Because of the pulse gash depth of fluctuation part is very shallow, the EMC influence that is caused, and the influence of outputting current steadily degree is all very little.Simultaneously, utilize the principle of pulsewidth restriction conducting to overcome the defective that constant-current circuit consumes energy again.Finally mixed the advantage of these two kinds of controls, overcome constant-current circuit again, overcome the relatively poor shortcoming that influences with EMC of stability that the PWM control loop causes because of pulse frequency the shortcoming of the energy consumption of fluctuation part in inside circuit.Through the The whole control drive circuit board is seen whole integrated driver module 2 neither ones power consumption focus as infrared scan.
The integrated driver module 2 of many groups is connected to control terminal 4 through mixed-media network modules mixed-media 3.Concrete, mixed-media network modules mixed-media 3 be networking chain-TCP/IP Ethnet, it can be a gateway or a Network path connector, its objective is through the IP agreement to couple together independently integrated driver module 2 separately, the addressing range of these parts is 2 8* 2 8=64K.Corresponding, integrated driver module also comprises NE, is specially the Ethnet chip, the Ethnet built-in chip type module register of a sixteen bit, its addressability is 2 8* 2 8=64K.Mixed-media network modules mixed-media is through a plurality of integrated driver module addressing of said module register pair.
Can see that in the present embodiment, addressing is all carried out through ICP/IP protocol, utilize existing communication network, practice thrift the difficulty and the cost of wiring.Simultaneously, need recognize that each networking in the present embodiment and port connect owing to utilized ICP/IP protocol, can adopt existing wireless communication network to carry out.
This mixed-media network modules mixed-media 3 also is connected with control terminal 4 except with integrated driver module 2 is connected, and through this connection, the controlled function of LED lamp is achieved.
Except above-mentioned basic structure, application-specific integrated circuit (ASIC) or control terminal 4 also comprise the transducing signal access interface, and it connects external sensor to receive transducing signal.Transducer possibly comprise temperature sensor, light sensor, infrared sensor etc.Temperature sensor can be collected the temperature information of LED lamp, return to application-specific integrated circuit (ASIC) after, adjustment offers the driving energy of corresponding LED lamp to application-specific integrated circuit (ASIC) according to the temperature information that receives.Light sensor can be collected the brightness of environment; After returning to application-specific integrated circuit (ASIC); Thereby application-specific integrated circuit (ASIC) or control terminal determine the suitable brightness of LED lamp accordingly; Control port control LED lamp by application-specific integrated circuit (ASIC) changes brightness accordingly again, is specially the energy that flows to the LED lamp through the pwm signal modulation.So just reached the purpose of adjustment voluntarily.
Finally, through above-mentioned network arrangement, control terminal 4 carries out communication through Transmission Control Protocol and this lamp string, the brightness that control terminal 4 is set, time, the parameter of scope etc. then through the integrated driver module 2 of IP agreement locking desire communication and concrete lamp string; Or collection is from the information of integrated driver module 2 or control terminal 4 transducers; The parameter of setting after the calculating through control terminal 4; Form through PREFILE (presetting file) deposits in the flash memory in the integrated driver module 2, so that carry out, thereby the overall process of completion The whole control.
Below we will to this intelligentized LED control system different market scopes should be used for explain and simple declaration:
1. home lighting, high-grade hotel, the application of club's illumination
Interior decoration lantern fair field is the emerging market of LED.Through the control of electric current, LED can realize hundreds of kind even thousands of kinds of change in color.Be particular about in the personalized epoch in present stage, the led color variation helps the development in LED decorative lamp market.LED has begun to make small decorating lamp, and decorative curtain wall is applied in hotel, the room.It is predicted that indoor LED finishing market gaining rate in 5 years of future will reach CAGR, 35%.When furniture finishing LED use lamp, if can the supporting LED driving control system of going up intelligence, the color of light can be according to the variation of daylight, people's mood etc. and vary just really can be accomplished the illumination of " people-oriented " easily.
2. the application of automobile-used LED illumination
LED mainly has benefited from the fast characteristics of low-power consumption, long-life and reaction speed as automobile lamp.Have statistics to show, go down with 100 kilometers speed per hour at automobile, the vehicle brake distance that the vehicle that the LED stop lamp is housed is not more adorned the LED stop lamp will reduce 7 feet.At present, LED progressively has been applied on the 3rd stop lamp of automobile.Though LED is the also restriction of the low and relevant policies of the unit's of being faced with wattage lumen at present; Also need the regular hour at entering automobile tail light and headlight market; But along with the decline of cost-performance ratio and the lifting of luminous efficiency; Final LED will progressively realize the transfer from automotive interior, outside tail end to front end, finally occupy whole automobile lamp market.China has been maximum in the world automobile market, and by feat of the huge production capacity of automobile, LED car light market is faced with huge development potentiality.Intelligent drives and the application that is controlled at this aspect also will be taken advantage of its east wind, develop rapidly.
3. solar LED street lamp market scale
The domestic solar LED illumination output value is above 30,000,000,000 yuan.LED is a low pressure, and direct current supply will replace conventional road lamp.Expect 2012, market scale will rise to 139.6 hundred million yuan by 15.6 hundred million yuan in 2008, and annual compound growth rate reaches 63.0%.
Solar LED street lamp is the direction of novel energy-saving environment-friendly.Use the intellectualized LED control system of the utility model, can well control the bright dark of light, the regional extent that illuminates.Most importantly, through simple expansion, it can control the driving with the LED lamp that discharges and recharges of solar panels and battery simultaneously.The control mode of this pluralism in unity provides following advantage:
At first, the capacity of control test battery that can intelligence, thus judge that exactly LED can use lighting hours, for guaranteeing the illumination of enough time, thereby regulate the brightness or the illumination zone of LED street lamp automatically.If be the cloudy day today, sunlight is abundant inadequately, and battery is in low-energy state.Like this, " SmartDrive " will select the low energy mode of operation, thereby guarantees the sufficient light time;
Secondly, the self-protection function prolongs the service time of system.System's control meeting is carried out the charging current overload to battery and is limited the perhaps not enough alarm of battery capacity, also can carry out overheat protector etc. to LED simultaneously.
Thereby, having reduced engineering staff's preventive maintenance time, control system can be constantly to battery simultaneously, and solar panels and LED lamp string are tested oneself.If find to lose efficacy, can direct record, and directly send to the keeper to the form of problem through mail or information through wireless network.

Claims (10)

1. a LED multi-path is controlled and drive system, comprising:
The LED lamp;
Integrated driver module drives and control LED lamp, comprises the output port of power source to LED lamp output energy;
Control terminal, the operation of integrated driver module of exercisable control and LED lamp;
Mixed-media network modules mixed-media connects control terminal and at least one integrated driver module, it is characterized in that said integrated driver module comprises application-specific integrated circuit (ASIC), and said application-specific integrated circuit (ASIC) comprises the control port that sends control signal to the LED lamp.
2. a kind of LED multi-path control according to claim 1 and drive system is characterized in that said integrated driver module also comprises the constant current constant voltage source by the pwm signal modulation, and said constant current constant voltage source is exported energy through said output port of power source to the LED lamp.
3. a kind of LED multi-path control according to claim 1 and drive system; It is characterized in that: said application-specific integrated circuit (ASIC) comprises many group control ports; Said each control port connects one group of LED lamp string respectively, and the control signal of each control port output is separate.
4. a kind of LED multi-path control according to claim 3 and drive system, it is characterized in that: said application-specific integrated circuit (ASIC) comprises one 4 bit register, said integrated driver module carries out addressing to 16 groups of control ports at the most through 4 bit registers.
5. a kind of LED multi-path control according to claim 1 and drive system; It is characterized in that: said integrated driver module also comprises NE; Said NE comprises the module register, and said mixed-media network modules mixed-media is through a plurality of integrated driver module addressing of said module register pair.
6. according to claim 4 or 5 described any LED multi-path control and drive systems, it is characterized in that: said addressing is carried out through ICP/IP protocol.
7. a kind of LED multi-path control according to claim 6 and drive system, it is characterized in that: application-specific integrated circuit (ASIC) also comprises the transducing signal access interface, said transducing signal access interface connects external sensor to receive transducing signal.
8. a kind of LED multi-path control according to claim 7 and drive system; It is characterized in that: said transducer comprises temperature sensor; Said temperature sensor is collected the temperature information of LED lamp, and said application-specific integrated circuit (ASIC) offers the driving energy of corresponding LED lamp according to the temperature information adjustment that receives.
9. a kind of LED multi-path control according to claim 1 and drive system is characterized in that: the energy consumption of said integrated driver module self is smaller or equal to one of percentage of the energy consumption of all LED that it drove.
10. a kind of LED multi-path control according to claim 1 and drive system, it is characterized in that: intelligent terminal is computer or smart mobile phone or palmtop PC, has the control interface that supplies user's operation.
CN2011202415044U 2011-07-11 2011-07-11 Multi-channel LED (light-emitting diode) controlling and driving system Expired - Fee Related CN202172510U (en)

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CN2011202415044U CN202172510U (en) 2011-07-11 2011-07-11 Multi-channel LED (light-emitting diode) controlling and driving system

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Application Number Priority Date Filing Date Title
CN2011202415044U CN202172510U (en) 2011-07-11 2011-07-11 Multi-channel LED (light-emitting diode) controlling and driving system

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CN202172510U true CN202172510U (en) 2012-03-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102264181A (en) * 2011-07-11 2011-11-30 苏州辰戈电子有限公司 Multi-path LED (Light Emitting Diode) controlling and driving system
WO2014176920A1 (en) * 2013-04-28 2014-11-06 京东方科技集团股份有限公司 Led lamp drive method and system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102264181A (en) * 2011-07-11 2011-11-30 苏州辰戈电子有限公司 Multi-path LED (Light Emitting Diode) controlling and driving system
WO2014176920A1 (en) * 2013-04-28 2014-11-06 京东方科技集团股份有限公司 Led lamp drive method and system
US9578715B2 (en) 2013-04-28 2017-02-21 Boe Technology Group Co., Ltd. Method and system for driving LED lamp

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C17 Cessation of patent right
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Granted publication date: 20120321

Termination date: 20130711