CN101702848A - Monoline driving circuit in series of LED decorative illumination - Google Patents
Monoline driving circuit in series of LED decorative illumination Download PDFInfo
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- CN101702848A CN101702848A CN200910210894A CN200910210894A CN101702848A CN 101702848 A CN101702848 A CN 101702848A CN 200910210894 A CN200910210894 A CN 200910210894A CN 200910210894 A CN200910210894 A CN 200910210894A CN 101702848 A CN101702848 A CN 101702848A
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a monoline driving circuit in series of LED decorative illumination, comprising a controller, an IC driving circuit and a plurality of LED lamps, wherein, the IC driving circuit is provided with a data input port, a data output port and a constant current output port; the data output port of the controller is electrically connected with the data input port of a first IC driving circuit; the data output port of the first IC driving circuit is electrically connected with the data input port of a second IC driving circuit,..., the data output port of the nth IC driving circuit is suspended; the constant current output port of the IC driving circuit is electrically connected with the negative electrode of the LED lamp; the positive electrodes of the LED lamp are all connected with the power supply; each constant current output can be connected with a plurality of LED lamps; the monoline driving circuit in series of the invention is characterized by being provided with one control line, saving the cost of a system, reducing failure rate of a connector of the system due to the reduction of the connecting lines; a clock and a data signal are integrated on one line for transmission, the aligning problem of the number sequence between the clock and the data does not exist, and the external driving circuit is not needed.
Description
Technical field
The present invention relates to LED decorative lighting field, particularly a kind of single line polyphone drive circuit of LED decorative lighting.
Background technology
LED decorative lighting of the prior art, the transmission structures that adopt three control lines more, be respectively that clock line, data wire and serial output data latch line, wherein clock line and data wire transmission system need data presented, when being displaced to corresponding IC Deng video data, system's output latch signal, each IC latchs the serial data in the link.This transmission structure makes things convenient for the transmission of data and latchs, and realizes easily in design.But there is following shortcoming in it: 1, too much control line causes system cost higher, and the line that needs in use is many more, and connecting line is thin more, damages easily and comes off.2, because clock, data two transmission lines are arranged, the sequential of system transmissions is had relatively high expectations, in a lot of large-scale application, need external buffer to satisfy the system sequence requirement.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned prior art present situation, and to provide a kind of single line polyphone drive circuit that need not external drive circuit, minimizing system line, reduces the LED decorative lighting of system's connector spoilage.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of single line polyphone drive circuit of LED decorative lighting, comprise controller and several IC drive circuits, it is characterized in that: described IC drive circuit has data-in port (SDI), data-out port (SDO), constant current delivery outlet (OUT);
The data-out port of described controller is connected with the data-in port (SDI) of an IC drive circuit, the data-out port of the one IC drive circuit (SDO) is electrically connected with the data-in port (SDI) of the 2nd IC drive circuit, ..., the data-out port of n-1IC drive circuit (SDO) is electrically connected with the data-in port (SDI) of n IC drive circuit, and the data-out port (SDO) of n IC drive circuit is unsettled;
Also comprise several LED lamps, the constant current delivery outlet (OUT) of described IC drive circuit is electrically connected the negative pole of LED lamp, and the positive pole of LED lamp all is connected on the power supply.
Each described IC drive circuit has several constant current delivery outlets (OUT); Each constant current delivery outlet (OUT) of described IC drive circuit can connect more than one LED lamp; The LED lamp that each constant current delivery outlet (OUT) of described IC drive circuit connects can be parallel connection, series connection or mix connection.
Compared with prior art, the invention has the advantages that it has only a control line, has saved the cost of system, and, also reduced system's connector spoilage because line reduces; Clock and data-signal are integrated to be transmitted on a line, does not have the alignment problem of number sequence between clock and the data, need not external drive circuit.
Description of drawings
Fig. 1 is a circuit diagram of the present invention.
Be labeled as among the figure:
1, controller; 21, an IC drive circuit; 22, the 2nd IC drive circuit; 2 (n-1), n-1IC drive circuit; 2n, nIC drive circuit; 3, LED lamp.
Embodiment
According to embodiment and accompanying drawing the present invention is described in further detail below.
As shown in Figure 1, a kind of single line of LED decorative lighting polyphone drive circuit comprises controller 1 and several IC drive circuits, and described IC drive circuit has data-in port, data-out port, constant current delivery outlet;
The data-out port of described controller 1 is electrically connected with the data-in port of an IC drive circuit 21, the data-out port of the one IC drive circuit 21 is electrically connected with the data-in port of the 2nd IC drive circuit 22, ..., the data-out port of n-1IC drive circuit 2 (n-1) is electrically connected with the data-in port of nIC drive circuit 2n, and the data-out port of nIC drive circuit 2n is unsettled;
Also comprise several LED lamps 3, the constant current delivery outlet of described IC drive circuit is electrically connected the negative pole of LED lamp 3, and the positive pole of LED lamp 3 all is connected on the power supply; Each described IC drive circuit has several constant current delivery outlets; Each constant current delivery outlet of described IC drive circuit connects more than one LED lamp 3; The LED lamp 3 that each constant current delivery outlet of described IC drive circuit connects can be parallel connection, series connection or mix connection.
Operation principle of the present invention:
The IC drive circuit is transmission LED lamp 3 video datas, and is pwm signal with the data conversion that receives, the drive IC of control LED lamp 3 brightness.The video data that the IC drive circuit needs a receiving system or a last IC drive circuit to transmit, and with this transfer of data to next IC drive circuit, when confirming that the data that receive are the video data of these IC drive circuit needs, with this data latching, and be converted into corresponding pwm signal, this pwm signal is used for controlling the time of LED lamp 3 constant currents output, and then the brightness of control LED lamp 3 demonstrations.
The IC drive circuit of single line decorative lighting LED lamp 3 in order to save the transmission line cost, has only a data line in the design.Therefore in the process of transfer of data, do not have latch signal IC drive circuit latch data, the distinguishing and latch of transmission data becomes problem.This patent is based on system's characteristics of single line IC drive circuit, unique proposition based on the data transmission link of address identification message, and this has been proposed the transmission data format of own uniqueness, the volume of transmitted data of having saved link greatly.
1, each series connection IC drive circuit is set up the notion of an address, at link at first, controller sends the address frame signal, and each IC drive circuit is received the laggard row address initialization of this signal, set up a unique address, so the data transmission there is uniqueness.
2, when sending data, be not that each data all can have address information before, in order to reduce the transmission data of system, only can send first address information of whole serial data, then followed by a lot of data message, go to decode by the IC drive circuit.3, to detect the information of address bit of Frame littler than address own for Chuan Lian IC drive circuit, then begin to prepare the difference A that receives data and calculate this address and address own, whenever receive a data counting then once, by the time count A time, the data message that obtains is the data of this IC drive circuit, the IC drive circuit is with this data interlock at this moment, and system finishes transfer of data.
Claims (4)
1. the single line of LED decorative lighting polyphone drive circuit comprises controller (1) and several IC drive circuits, and it is characterized in that: described IC drive circuit has data-in port, data-out port, constant current delivery outlet;
The data-out port of described controller is electrically connected with the data-in port of an IC drive circuit (21), the data-out port of the one IC drive circuit (21) is electrically connected with the data-in port of the 2nd IC drive circuit (22), ..., the data-out port of n-1IC drive circuit (2 (n-1)) is electrically connected with the data-in port of n IC drive circuit (2n), and the data-out port SDO of n IC drive circuit (2n) is unsettled;
Also comprise several LED lamps (3), the constant current delivery outlet of described IC drive circuit is electrically connected the negative pole of LED lamp (3), and the positive pole of LED lamp (3) all is connected on the power supply.
2. the single line polyphone drive circuit of LED decorative lighting according to claim 1, it is characterized in that: each described IC drive circuit has several constant current delivery outlets.
3. the single line polyphone drive circuit of LED decorative lighting according to claim 1 and 2, it is characterized in that: each constant current delivery outlet of described IC drive circuit connects more than one LED lamp (3).
4. the single line polyphone drive circuit of LED decorative lighting according to claim 3 is characterized in that: the LED lamp (3) that each constant current delivery outlet of described IC drive circuit connects can be that parallel connection, series connection or mixing connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210894.6A CN101702848B (en) | 2009-11-13 | 2009-11-13 | Monoline driving circuit in series of LED decorative illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910210894.6A CN101702848B (en) | 2009-11-13 | 2009-11-13 | Monoline driving circuit in series of LED decorative illumination |
Publications (2)
| Publication Number | Publication Date |
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| CN101702848A true CN101702848A (en) | 2010-05-05 |
| CN101702848B CN101702848B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910210894.6A Expired - Fee Related CN101702848B (en) | 2009-11-13 | 2009-11-13 | Monoline driving circuit in series of LED decorative illumination |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913795A (en) * | 2012-10-30 | 2013-02-06 | 江苏远大光电有限公司 | Light-emitting diode (LED) daylight lamp |
| CN106157887A (en) * | 2016-08-30 | 2016-11-23 | 东莞芯成电子科技有限公司 | Serial parallel, the method for transmitting signals of high efficiency driving chip and system thereof |
| CN112351540A (en) * | 2019-08-06 | 2021-02-09 | 矽诚科技股份有限公司 | Burning sequencing point-controlled light-emitting diode lamp and operation method thereof |
| CN112652265A (en) * | 2020-12-24 | 2021-04-13 | 宗仁科技(平潭)股份有限公司 | LED driving device |
| WO2022262129A1 (en) * | 2021-06-17 | 2022-12-22 | 无锡德芯微电子有限公司 | Led control system |
| US11570866B2 (en) | 2014-10-22 | 2023-01-31 | Semisilicon Technology Corp. | Pixel-controlled LED light string and method of operating the same |
| US11617241B2 (en) | 2014-10-22 | 2023-03-28 | Semisilicon Technology Corp. | Pixel-controlled LED light string and method of operating the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201248163Y (en) * | 2008-09-04 | 2009-05-27 | 瑞安市宏民光电科技有限公司 | Drive board for spot light source |
| CN201256467Y (en) * | 2008-08-04 | 2009-06-10 | 东莞市百分百科技有限公司 | Novel LED AC driver circuit |
-
2009
- 2009-11-13 CN CN200910210894.6A patent/CN101702848B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201256467Y (en) * | 2008-08-04 | 2009-06-10 | 东莞市百分百科技有限公司 | Novel LED AC driver circuit |
| CN201248163Y (en) * | 2008-09-04 | 2009-05-27 | 瑞安市宏民光电科技有限公司 | Drive board for spot light source |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913795A (en) * | 2012-10-30 | 2013-02-06 | 江苏远大光电有限公司 | Light-emitting diode (LED) daylight lamp |
| US11570866B2 (en) | 2014-10-22 | 2023-01-31 | Semisilicon Technology Corp. | Pixel-controlled LED light string and method of operating the same |
| US11617241B2 (en) | 2014-10-22 | 2023-03-28 | Semisilicon Technology Corp. | Pixel-controlled LED light string and method of operating the same |
| CN106157887A (en) * | 2016-08-30 | 2016-11-23 | 东莞芯成电子科技有限公司 | Serial parallel, the method for transmitting signals of high efficiency driving chip and system thereof |
| CN106157887B (en) * | 2016-08-30 | 2019-02-05 | 东莞芯成电子科技有限公司 | A kind of method for transmitting signals and its system of serial parallel driving chip |
| CN112351540A (en) * | 2019-08-06 | 2021-02-09 | 矽诚科技股份有限公司 | Burning sequencing point-controlled light-emitting diode lamp and operation method thereof |
| CN112652265A (en) * | 2020-12-24 | 2021-04-13 | 宗仁科技(平潭)股份有限公司 | LED driving device |
| WO2022262129A1 (en) * | 2021-06-17 | 2022-12-22 | 无锡德芯微电子有限公司 | Led control system |
Also Published As
| Publication number | Publication date |
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| CN101702848B (en) | 2014-02-12 |
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Granted publication date: 20140212 Termination date: 20171113 |