CN102548083A - Circuit control system of multiple groups of LED (light-emitting diode) lamps - Google Patents
Circuit control system of multiple groups of LED (light-emitting diode) lamps Download PDFInfo
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- CN102548083A CN102548083A CN2010105754806A CN201010575480A CN102548083A CN 102548083 A CN102548083 A CN 102548083A CN 2010105754806 A CN2010105754806 A CN 2010105754806A CN 201010575480 A CN201010575480 A CN 201010575480A CN 102548083 A CN102548083 A CN 102548083A
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- modular converter
- retainer
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Abstract
The invention discloses a circuit control system of multiple groups of LED (light-emitting diode) lamps. The circuit control system comprises a controller, a keyboard circuit, an A/D (analog/digital) conversion module, a display circuit and a D/A (digital/analog) conversion module, wherein the keyboard circuit and the A/D conversion module are connected at the input end of the controller; the display circuit and the D/A conversion module are connected at the output end of the controller; the input end of the A/D conversion module and the output end of the D/A conversion module are respectively connected with a multi-path selector which is connected with a multi-path retainer; the multi-path retainer is connected with a current conditioning module; the input end of the multi-path retainer is also connected with a linear direct-current power supply; the output end of the current conditioning module is connected with the multiple LED lamp groups; the controller is a single chip microcomputer which generates and outputs a constant-current source with corresponding size set by a user according to parameters set by the user to the LED lamp groups; and the controller receives signals acquired by the A/D conversion module and carries out closed-loop regulation on the outputted constant-current source after processing. The circuit control system has the advantages that the structure is simple, the design is reasonable, the system structure of the multiple groups of LED lamps is simplified, the controllability is good, the flexibility and the reliability are high, the cost is low, the use effect is good and the promotion and the use are convenient.
Description
Technical field
The invention belongs to the LED lighting technical field, especially relate to a kind of circuit control system of many group LED lamps.
Background technology
The LED illumination has energy-saving and environmental protection, safety, energy consumption is low, the life-span is long; Low-heat, white light, high brightness, easy light modulation, light beam are concentrated; Advantages such as waterproof, shockproof, miniature, easy maintenance are widely used in places such as road lighting, office lighting, advertising lighting, waiting room illumination, automotive lighting at present.LED is generally constant-current source and drives, and mode is the LED lamp of one group of series connection of a power drives usually, if wherein a certain LED lamp damages short circuit, does not influence the work of other LED lamps, if open circuit, does not then all work.In this manner, want complete overhaul after opening circuit, complicated operation has increased the cost of overhaul; And, when needs are much organized LED, just need a lot of power supplys, increased the complexity of system, increased cost, also wayward.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned deficiency of the prior art, and a kind of circuit control system of many group LED lamps is provided, and it is simple in structure; Reasonable in design, simplified many groups LED lamp system structure, controllability is good; Flexibility is high, and reliability is high, and cost is low; Result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of circuit control system of many group LED lamps; It is characterized in that: the display circuit and the D/A modular converter that comprise controller, be connected on the keyboard circuit and the A/D modular converter of controller input and be connected on controller output end; The output of the input of said A/D modular converter and D/A modular converter all joins with MUX; Said MUX and multichannel retainer join, and said multichannel retainer and current regulating module are joined, and the input of said multichannel retainer also is connected to the linear DC power supply into its power supply; The output of said current regulating module is connected to a plurality of LED lamp groups, and the current regulating module is made up of corresponding with the multichannel retainer respectively constant current source generating circuit that joins and isolate each other of multichannel; Said controller is for obtaining the customer parameter setting, producing the correspondent voltage signal and combine MUX, multichannel retainer with the linear DC power supply current regulating module respective channel to be produced and constant-current source that the user is provided with corresponding size is exported to the single-chip microcomputer of LED lamp group according to control D/A modular converter is set through keyboard circuit; Said A/D modular converter is transferred to controller to current regulating module output signal real-time sampling and with the signal that collects, and after signal that said controller reception A/D modular converter is collected and the process analyzing and processing output constant-current source is carried out closed-loop adjustment.
The circuit control system of above-mentioned many groups LED lamp is characterized in that: said single-chip microcomputer is MSP430 single-chip microcomputer or 51 single-chip microcomputers.
The circuit control system of above-mentioned many groups LED lamp is characterized in that: said display circuit is a liquid crystal display circuit.
The circuit control system of above-mentioned many groups LED lamp is characterized in that: said MUX for couple together by two 74151 chips constitute 16 select 1 MUX.
The present invention compared with prior art has the following advantages: the present invention proposes a kind of circuit control system of many group LED lamps, and simple in structure and reasonable in design, simplified the system configuration of many groups LED lamp, strengthened its controllability and flexibility simultaneously, reduced cost; The present invention can adjust the output of circuit according to the parameter that the user imports from keyboard circuit in real time; The set point of each passage and real data all can show through display circuit; So that the user in time understands the ruuning situation of system and makes corresponding adjustment; Automaticity is high, complete function; The present invention helps promoting the use of of LED illumination, and flexible and convenient to use, workable, result of use is good, is convenient to promote the use of.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a circuit structure block diagram of the present invention.
Description of reference numerals:
The 1-controller; The 2-keyboard circuit; The 3-A/D modular converter;
The 4-display circuit; The 5-D/A modular converter; The 6-MUX;
7-multichannel retainer; 8-current regulating module; 9-linear DC power supply;
10-LED lamp group.
Embodiment
As shown in Figure 1; The display circuit 4 and the D/A modular converter 5 that the present invention includes controller 1, be connected on the keyboard circuit 2 and the A/D modular converter 3 of controller 1 input and be connected on controller 1 output; The output of the input of said A/D modular converter 3 and D/A modular converter 5 all joins with MUX 6; Said MUX 6 joins with multichannel retainer 7; Said multichannel retainer 7 joins with current regulating module 8; The input of said multichannel retainer 7 also is connected to the linear DC power supply 9 into its power supply, and the output of said current regulating module 8 is connected to a plurality of LED lamp groups 10, and said current regulating module 8 is made up of with the multichannel retainer 7 corresponding constant current source generating circuits that join and isolate each other respectively multichannel; Said controller 1 is for obtaining the customer parameter setting, producing the correspondent voltage signals and combine MUX 6, multichannel retainer 7 with linear DC power supply 9 current regulating module 8 respective channel to be produced and constant-current source that the user is provided with corresponding size is exported to the single-chip microcomputer of LED lamp group 10 according to control D/A modular converter 5 is set through keyboard circuit 2; 3 pairs of current regulating modules of said A/D modular converter, 8 output signal in real time are sampled and the signal that collects are transferred to controller 1, after signal that said controller 1 reception A/D modular converter 3 is collected and the process analyzing and processing output constant-current source are carried out closed-loop adjustment.
As shown in Figure 1, in the present embodiment, said single-chip microcomputer is MSP430 single-chip microcomputer or 51 single-chip microcomputers.Said display circuit 4 is a liquid crystal display circuit.Said MUX 6 for couple together by two 74151 chips constitute 16 select 1 MUX.
The operation principle of the present invention and the course of work are: at first, the user is through keyboard circuit 2 each channel parameters of input.Controller 1 real-time storage relevant parameter; After bringing into operation; Controller 1 is given D/A modular converter 5 according to the output control signal corresponding is set; Produce the correspondent voltage signal at each passage successively through D/A modular converter 5 and MUX 6; And output on the multichannel retainer 7, the voltage signal of each passage produces the constant-current source output signal of corresponding size just as the voltage signal of constant current source generating circuit in the current regulating module 8 on the multichannel retainer 7 on the corresponding constant current source generating circuit of each passage.Simultaneously, controller 1 is also exported signal with MUX 6 to the constant-current source of each passage through A/D modular converter 3 and is carried out real-time sampling, compares with set point, in real time the output signal is adjusted, thereby is realized closed-loop control, to improve the precision of system.The set point of each passage of system and real data all can show through display circuit 4, so that the user in time understands the ruuning situation of system and makes corresponding adjustment.In order to improve the reliability of system, the multiple constant current source generating circuit in the current regulating module 8 all is separately independently corresponding to each output channel, realizes interchannel isolation.Like this, when going wrong, close this passage, other passage is not exerted an influence on a certain road.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection range of technical scheme of the present invention.
Claims (4)
1. organize the circuit control system of LED lamp one kind more; It is characterized in that: the display circuit (4) and the D/A modular converter (5) that comprise controller (1), be connected on the keyboard circuit (2) and the A/D modular converter (3) of controller (1) input and be connected on controller (1) output; The output of the input of said A/D modular converter (3) and D/A modular converter (5) all joins with MUX (6); Said MUX (6) joins with multichannel retainer (7); Said multichannel retainer (7) joins with current regulating module (8); The input of said multichannel retainer (7) also is connected to the linear DC power supply (9) into its power supply, and the output of said current regulating module (8) is connected to a plurality of LED lamp groups (10), and said current regulating module (8) is made up of corresponding with multichannel retainer (7) the respectively constant current source generating circuit that joins and isolate each other of multichannel; Said controller (1) is for obtaining the customer parameter setting, producing the correspondent voltage signal and combine MUX (6), multichannel retainer (7) and the constant-current source that linear DC power supply (9) makes generation of current regulating module (8) respective channel and user that corresponding size is set to export to the single-chip microcomputer of LED lamp group (10) according to control D/A modular converter (5) is set through keyboard circuit (2); Said A/D modular converter (3) is transferred to controller (1) to current regulating module (8) output signal in real time sampling and with the signal that collects, and after signal that said controller (1) reception A/D modular converter (3) is collected and the process analyzing and processing output constant-current source is carried out closed-loop adjustment.
2. according to the circuit control system of the described many group LED lamps of claim 1, it is characterized in that: said single-chip microcomputer is MSP430 single-chip microcomputer or 51 single-chip microcomputers.
3. according to the circuit control system of the described many group LED lamps of claim 1, it is characterized in that: said display circuit (4) is a liquid crystal display circuit.
4. according to the circuit control systems of the described many group LED lamps of claim 1, it is characterized in that: said MUX (6) for couple together by two 74151 chips constitute 16 select 1 MUX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105754806A CN102548083A (en) | 2010-12-07 | 2010-12-07 | Circuit control system of multiple groups of LED (light-emitting diode) lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105754806A CN102548083A (en) | 2010-12-07 | 2010-12-07 | Circuit control system of multiple groups of LED (light-emitting diode) lamps |
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| CN102548083A true CN102548083A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105754806A Pending CN102548083A (en) | 2010-12-07 | 2010-12-07 | Circuit control system of multiple groups of LED (light-emitting diode) lamps |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409215A (en) * | 2016-10-10 | 2017-02-15 | 深圳市康铭盛科技实业股份有限公司 | LED backlight control method |
| CN106523935A (en) * | 2016-10-10 | 2017-03-22 | 深圳市康铭盛科技实业股份有限公司 | Integrated type LED light-emitting module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578713A (en) * | 2007-07-06 | 2009-11-11 | 罗姆股份有限公司 | Driving circuit for light emitting element, and electronic device |
| CN101701695A (en) * | 2009-09-14 | 2010-05-05 | 连添渟 | Temperature-control intelligent color-changing light |
| CN101861012A (en) * | 2010-04-20 | 2010-10-13 | 深圳茂硕电源科技股份有限公司 | Device utilizing current and voltage feedback to realize constant current control |
| EP2249624A2 (en) * | 2009-05-04 | 2010-11-10 | Vadsbo Innovation AB | Electric circuit arrangement |
-
2010
- 2010-12-07 CN CN2010105754806A patent/CN102548083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578713A (en) * | 2007-07-06 | 2009-11-11 | 罗姆股份有限公司 | Driving circuit for light emitting element, and electronic device |
| EP2249624A2 (en) * | 2009-05-04 | 2010-11-10 | Vadsbo Innovation AB | Electric circuit arrangement |
| CN101701695A (en) * | 2009-09-14 | 2010-05-05 | 连添渟 | Temperature-control intelligent color-changing light |
| CN101861012A (en) * | 2010-04-20 | 2010-10-13 | 深圳茂硕电源科技股份有限公司 | Device utilizing current and voltage feedback to realize constant current control |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409215A (en) * | 2016-10-10 | 2017-02-15 | 深圳市康铭盛科技实业股份有限公司 | LED backlight control method |
| CN106523935A (en) * | 2016-10-10 | 2017-03-22 | 深圳市康铭盛科技实业股份有限公司 | Integrated type LED light-emitting module |
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Application publication date: 20120704 |