CN107396505A - A kind of circuit for driving multigroup LED to show - Google Patents
A kind of circuit for driving multigroup LED to show Download PDFInfo
- Publication number
- CN107396505A CN107396505A CN201710851463.2A CN201710851463A CN107396505A CN 107396505 A CN107396505 A CN 107396505A CN 201710851463 A CN201710851463 A CN 201710851463A CN 107396505 A CN107396505 A CN 107396505A
- Authority
- CN
- China
- Prior art keywords
- chip
- circuit
- led
- control
- turns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- 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]
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of circuit for driving multigroup LED to show, it is related to a kind of driving circuit structure.It includes control chip, voltage conversion circuit, shift register chip, string and turns simultaneously chip and lamp group, control chip is connected by clock line, data wire, GPIO pin with voltage conversion circuit, voltage conversion circuit is by data, clock control line turns with multiple strings and chip is connected, voltage conversion circuit is also connected by GPIO control lines with shift register chip, shift register chip turns with multiple strings and chip is connected, and string turns and chip is connected with lamp group.The present invention can go to control the LED of multiple quantity by the control chip number of pins of minority, realize that the serial date transfer of single pin, the parallel data of multiple-channel output light LED.
Description
Technical field
The present invention relates to a kind of driving circuit structure, and in particular to a kind of circuit for driving multigroup LED to show.
Background technology
Many occasions can all use LED to show various effects, and the more display effects of the quantity of lamp are more obvious more force
Very.So the quantity of lamp is increasing, but the number of pins of control chip is limited, so among circuit design process,
It will accomplish to go to control the lamp number of multiple quantity with the control chip number of pins of minority.The circuit that traditional driving LED is shown
The middle driving chip used includes input and output and enables pin, data input, clock input, so needing to draw from control chip
Number of pins or considerable.Therefore control chip is being reduced using the shift register chip of one-level multichannel before this
Number of pins.In addition, many strings turn and chip, the operating voltage of displacement pio chip are all 5V, power consumption is higher, therefore, it is necessary to subtracts
Few pin number, reduces power consumption, and the present invention devises the circuit that a kind of multigroup LED of driving of single pin is shown.
The content of the invention
In view of the shortcomings of the prior art, the present invention seeks to be to provide what a kind of multigroup LED of driving was shown
Circuit, it can go to control the LED of multiple quantity by the control chip number of pins of minority, realize that the serial data of single pin is defeated
Enter, the parallel data of multiple-channel output lights LED.
To achieve these goals, the present invention is to realize by the following technical solutions：One kind drives multigroup LED to show
The circuit shown, including control chip, voltage conversion circuit, shift register chip, string turn and chip and lamp group, control chip lead to
Oversampling clock line, data wire, GPIO pin are connected with voltage conversion circuit, voltage conversion circuit by data, clock control line with
Multiple strings turn and chip is connected, and voltage conversion circuit is also connected by GPIO control lines with shift register chip, shift LD
Device chip turns with multiple strings and chip is connected, and string turns and chip is connected with lamp group.
Preferably, described lamp group is LED light group.
Preferably, described control chip provides clock reference to rear class chip, send data and change control and draw
The data of pin are turned with the corresponding string of enabled or closing and the input and output enable bit of chip.
Preferably, described voltage conversion circuit is the chip for connecting two kinds of different operating voltage, voltage class is realized
Conversion to cause the chip on both sides to be operated under required voltage.
Preferably, described string turns and chip is to be extended limited control chip pin, it is substantial amounts of to meet
LED is shown.
Preferably, described shift register chip is to further expand the number of pins of control chip.
Beneficial effects of the present invention：
1st, the auxiliary circuit that simultaneously chip is built is turned using the shift register chip and string of one-level multichannel, realizes the serial of single pin
Data input, the parallel data lightening LED lamp group of multiple-channel output；
2nd, voltage conversion circuit has been used, enabling the driving core of different voltage class is driven using the control chip of low-voltage
Piece.
Brief description of the drawings
Describe the present invention in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is the structural representation of the present invention.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Reference picture 1, present embodiment use following technical scheme：A kind of circuit for driving multigroup LED to show, bag
Include control chip 1, voltage conversion circuit 2, shift register chip 3, string and turn simultaneously chip 4 and lamp group 5, when control chip 1 passes through
Clock line, data wire, GPIO pin are connected with voltage conversion circuit 2, voltage conversion circuit 2 by data, clock control line with it is more
Individual string turns and chip 4 is connected, and voltage conversion circuit 2 is also connected by GPIO control lines with shift register chip 3, shift LD
Device chip 3 turns with multiple strings and chip 4 is connected, and string turns and chip 4 is connected with lamp group 5.
It is worth noting that, described lamp group 5 is LED light group.
The effect of present embodiment control chip is to provide clock reference to rear class chip, sends data and changes
The data of controlling switch are with enabled or close corresponding input and output enable bit.Voltage conversion circuit（Chip）Effect be connection
The chip of two kinds of different operating voltage so that the chip on both sides can be operated under normal voltage.String turns and the effect of chip
It is to be extended limited control chip pin, to meet that substantial amounts of LED is shown.And the effect of shift register chip is then
Number of pins is further expanded.
Embodiment 1：Serial data is saved in the D type storage registers of 8 by shift register by displacement, and it is certainly
Body needs the access of 4 kinds of clock signals and a serial data, so shift register is exactly that can draw 8 outputs herein
Pin is reduced to 5.And the output of 8 can only enable 4 strings of control and turn simultaneously chip, because each string turns and chip needs two make
Can signal.Therefore when needing more strings turn and chip, shift register chip plays a part of just bigger.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
- A kind of 1. circuit for driving multigroup LED to show, it is characterised in that including control chip (1), voltage conversion circuit (2), Shift register chip (3), string turns and chip (4) and lamp group (5), control chip (1) are drawn by clock line, data wire, GPIO Pin is connected with voltage conversion circuit (2), and voltage conversion circuit (2) is by data, clock control line turns with multiple strings and chip (4) It is connected, voltage conversion circuit (2) is also connected by GPIO control lines with shift register chip (3), shift register chip (3) Turn with multiple strings and chip (4) is connected, string turns and chip (4) is connected with lamp group (5).
- A kind of 2. circuit for driving multigroup LED to show according to claim 1, it is characterised in that described lamp group (5) For LED light group.
- A kind of 3. circuit for driving multigroup LED to show according to claim 1, it is characterised in that described control core Piece (1) provides clock reference to rear class chip, sends data and changes the data of controlling switch with the corresponding string of enabled or closing Turn the input and output enable bit of simultaneously chip.
- 4. a kind of circuit for driving multigroup LED to show according to claim 1, it is characterised in that described voltage turns It is the chip for connecting two kinds of different operating voltage to change circuit (2), realizes the conversion of voltage class make it that the chip on both sides can It is operated under required voltage.
- 5. a kind of circuit for driving multigroup LED to show according to claim 1, it is characterised in that described string turns simultaneously Chip (4) is to be extended limited control chip pin, to meet that substantial amounts of LED is shown.
- 6. a kind of circuit for driving multigroup LED to show according to claim 1, it is characterised in that described displacement is posted Storage chip (3) is to further expand the number of pins of control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851463.2A CN107396505A (en) | 2017-09-20 | 2017-09-20 | A kind of circuit for driving multigroup LED to show |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851463.2A CN107396505A (en) | 2017-09-20 | 2017-09-20 | A kind of circuit for driving multigroup LED to show |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107396505A true CN107396505A (en) | 2017-11-24 |
Family
ID=60350351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710851463.2A Pending CN107396505A (en) | 2017-09-20 | 2017-09-20 | A kind of circuit for driving multigroup LED to show |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107396505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282926A (en) * | 2018-03-02 | 2018-07-13 | 宁波永贸时代进出口有限公司 | A kind of LED luminous flames circuit for lamp, LED storm lantern and candle lamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257756A (en) * | 2008-04-07 | 2008-09-03 | 杭州华三通信技术有限公司 | Lighting system and method |
| CN201232908Y (en) * | 2008-07-04 | 2009-05-06 | 上海大学 | Integration traffic light and control system thereof |
| CN102622963A (en) * | 2012-04-13 | 2012-08-01 | 南京信息工程大学 | Simple and universal full-hardware control system of display screen |
| CN103729326A (en) * | 2013-12-06 | 2014-04-16 | 南京智达康无线通信科技股份有限公司 | GPIO expansion method based on shifting registers |
| CN104881392A (en) * | 2015-06-19 | 2015-09-02 | 福建骏鹏通信科技有限公司 | Multiplexing RS485 circuit |
| CN205726554U (en) * | 2016-05-04 | 2016-11-23 | 爱盛生物科技（上海）有限公司 | plant growing LED lamp drive circuit device |
-
2017
- 2017-09-20 CN CN201710851463.2A patent/CN107396505A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257756A (en) * | 2008-04-07 | 2008-09-03 | 杭州华三通信技术有限公司 | Lighting system and method |
| CN201232908Y (en) * | 2008-07-04 | 2009-05-06 | 上海大学 | Integration traffic light and control system thereof |
| CN102622963A (en) * | 2012-04-13 | 2012-08-01 | 南京信息工程大学 | Simple and universal full-hardware control system of display screen |
| CN103729326A (en) * | 2013-12-06 | 2014-04-16 | 南京智达康无线通信科技股份有限公司 | GPIO expansion method based on shifting registers |
| CN104881392A (en) * | 2015-06-19 | 2015-09-02 | 福建骏鹏通信科技有限公司 | Multiplexing RS485 circuit |
| CN205726554U (en) * | 2016-05-04 | 2016-11-23 | 爱盛生物科技（上海）有限公司 | plant growing LED lamp drive circuit device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282926A (en) * | 2018-03-02 | 2018-07-13 | 宁波永贸时代进出口有限公司 | A kind of LED luminous flames circuit for lamp, LED storm lantern and candle lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6813392B2 (en) | Configurable and power-optimized integrated gate driver for USB power supply and Type-C SoC | |
| JP2006276221A5 (en) | ||
| CN104077990B (en) | Adopt LED numeral method and the key control chip of time-division multiplex technology | |
| JP5607313B2 (en) | Semiconductor device | |
| CN102077185A (en) | Input-output module, processing platform and method for extending a memory interface for input-output operations | |
| CN103165083B (en) | Light emitting diode (LED) backlight drive circuit, liquid crystal display device and drive circuit | |
| CN103500542B (en) | Led lamp panel | |
| CN204087752U (en) | The LED drive circuit of a kind of multi-segment display and key scan time-sharing multiplex | |
| CN201335959Y (en) | Multi-channel digital switch signal controller | |
| CN202183219U (en) | Addressing parallel display drive circuit and system thereof | |
| CN104252842A (en) | LED (Light Emitting Diode) display screen module with separated lamp boards and driving boards | |
| TWM431445U (en) | LED control system using modulated signal | |
| CN103165058A (en) | Multi-section nixie tube display drive circuit structure | |
| TW202121385A (en) | Display driving system and method for display driving system | |
| CN107396505A (en) | A kind of circuit for driving multigroup LED to show | |
| CN201583831U (en) | Shift series type digital display meter | |
| CN102761421A (en) | Network indicating device | |
| CN205229924U (en) | PCIE expands integrated circuit board based on high -end server | |
| CN203311770U (en) | Large display LED (light-emitting diode) nixie tube and single-chip driving circuit thereof | |
| CN207020958U (en) | A kind of programming system | |
| CN201600875U (en) | Multi-LED nixie tube display apparatus | |
| CN107424557A (en) | A kind of single dual-colored LED display drive circuit | |
| US8909831B2 (en) | Logic device | |
| CN203950532U (en) | A kind of LED charactron shows and button control chip | |
| CN207882892U (en) | A kind of VGA ＆ USB conversion expanding units based on indication control board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |
|
| RJ01 | Rejection of invention patent application after publication |