CN205992997U - A kind of Power Carrier communication LED control chip - Google Patents
A kind of Power Carrier communication LED control chip Download PDFInfo
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- CN205992997U CN205992997U CN201620745860.2U CN201620745860U CN205992997U CN 205992997 U CN205992997 U CN 205992997U CN 201620745860 U CN201620745860 U CN 201620745860U CN 205992997 U CN205992997 U CN 205992997U
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
LED control chip and the control circuit using this chip the utility model discloses a kind of Power Carrier communicates, described chip includes oscillating circuit, reference voltage circuit, voltage comparator circuit, logic control circuit, carrier data circuit, chip address arranges circuit, briliancy produces circuit, output driving circuit.Described oscillating circuit connects described carrier data circuit, described reference voltage circuit connects voltage comparator circuit, described voltage comparator circuit connects described carrier data circuit, described carrier data circuit, described chip address setting circuit connect described logic control circuit, described logic controller connects described briliancy and produces circuit, and described briliancy produces circuit and connects described output driving circuit.Power Carrier including described chip communicates LED control circuit, also includes control module and LED module, described control circuit only needs to two lines and achieves that control to multiple LED modules, realizes complicated and beautiful flicker effect.
Description
Technical field
This utility model is related to LED control field, and more particularly to a kind of Power Carrier communication LED controls driving chip neck
Domain.
Background technology
Christmas lamp is that western countries are commonly used in the adornment on Christmas tree Christmas Day.Realize flowing water with control chip,
The styling effects such as flicker, build more preferable festive air.In addition to family uses, shop, street etc. also all more use.At present
Also use at home is more and more.
The ingredient of Christmas lamp, predominantly several cluster of lamps, ornamental and a control box.Because each one likes difference, typically mostly is to provide
Several different flicker styles select to user, carry out style switching by a button in control box.Most common on market
A kind of Christmas lamp control chip, be the control of eight sections of four tunnel, provide eight kinds of flicker styles to select.It is typically only capable to realize some compare
The flicker style on basis.
No matter being traditional Christmas lamp control chip, or the mode of cascaded transmission data, all there is problems that needing
Cable length very long, the proportion that the cost of cable accounts for totle drilling cost is high, and assembling complexity needs manpower many simultaneously.
In order to realize more complicated flicker pattern control, can be controlled using MCU, so can be with algorithm Lai real
Existing complicated style, adjustment simultaneously is got up simpler.Such as common on the market TM1803, by DIN and DOUT and MCU phase
Connection, by way of cascade, data is delivered to the drive control chip of LED from MCU, it is possible to achieve each output of each IC
256 grades of briliancy are adjustable.The algorithm of cooperation MCU realizes complicated LED effect, and lamp string controls IC or TM1803 class to pass through to transmit number
Control according to the LED controlling briliancy and drive IC, except needing power line in addition it is also necessary to the Data In-Line of a line DIN and the number of DOUT
According to output lead, at least want three lines or four lines, therefore reducing number of wires is problem demanding prompt solution.
Utility model content
This utility model purpose is exactly for the problem more than LED control process number of wires.
Technical problem of the present utility model is solved by following technical scheme：
A kind of Power Carrier communication LED control chip is it is characterised in that include oscillating circuit, reference voltage circuit, voltage
Comparison circuit, logic control circuit, carrier data circuit, chip address arranges circuit, and briliancy produces circuit, output driving electricity
Road；Described oscillating circuit is connected with described carrier data circuit, and described reference voltage circuit is connected with described voltage comparator circuit,
The outfan of described voltage comparator circuit is connected with the input of described carrier data circuit, described carrier data circuit, described
Chip address setting circuit is connected with described logic control circuit, and the outfan of described logic controller produces circuit with briliancy
Input is connected, and the outfan that described briliancy produces circuit is connected with the input of described output driving circuit, and described output is driven
Dynamic circuit output connects output pin；Described oscillating circuit is used for providing generation oscillation frequency signal, system clock, described benchmark electricity
Volt circuit provides one not with the reference voltage of supply voltage and temperature change.Technical problem of the present utility model is also by following
Technical scheme solved：
A kind of Power Carrier communication LED control circuit, controls including control module, at least one Power Carrier communication LED
Chip and LED module, the outfan of described control module connects the power end of described control chip, the address of described control chip
End connects supply voltage or power supply ground, and the outfan of described control chip connects described LED module.
According to another specific aspect of the present utility model, described reference voltage value is 1.2V.
According to another specific aspect of the present utility model, supply voltage is passed through electric resistance partial pressure by described voltage comparator circuit
Afterwards, it is compared with reference voltage, the data signal loading on the supply voltage is separated, obtains carrier data.
According to another specific aspect of the present utility model, chip address setting circuit link address setting end, it is used for setting
Determine chip address, described address setting end is 4.
According to another specific aspect of the present utility model, described logic control circuit is used for described address setting end
Address is compared with the address in described carrier data, is followed by receiving the data letter in carrier data when described chip is selected
Breath.
According to another specific aspect of the present utility model, described carrier data circuit will be described using described system clock
Voltage comparative result is converted into carrier data.According to another specific aspect of the present utility model, described briliancy produces circuit will
Described data message in described carrier data is converted into the luminance signal of different duty.
According to another specific aspect of the present utility model, output driving circuit connects external LED drive end, for basis
Described luminance signal drives described LED module work.
According to another specific aspect of the present utility model, described chip is the encapsulation of SOP10 type.
According to another specific aspect of the present utility model, described chip at least drives a paths of LEDs module, described chip with
Described LED module packaging is together.
According to another specific aspect of the present utility model, described chip has and can store at least four encoder addresses
Memory space.
According to another specific aspect of the present utility model, the external connection circuit of described chip include control module and
LED module, the control signal that described control module exports connects as the supply voltage of described chip, the drive end of described chip
Described LED module, the address end of described chip is configured by connecting supply voltage or power supply ground terminal, or passes through inside IC
The break-make of FUSE is configured.
According to another specific aspect of the present utility model, described control module includes MCU and voltage regulator module, described
Data controlling signal is transferred to described voltage regulator module by MCU, and described voltage regulator module is adjusted to described data controlling signal
System, the control signal of described control module output is to combine with low-voltage various durations with high voltage to represent Quick Response Code, institute
State control signal and include control code, the first data, the second data, the 3rd data, the 4th data and frame end information, described control
Code includes full address selection position, four address bits and three reserved places, described first data, the second data, the 3rd data,
4th data includes 8 respectively, represents the different briliancy of LED, and described frame end information exceedes setting with the low-voltage persistent period
Time represents.
According to another specific aspect of the present utility model, described control chip is by described control signal from supply voltage
Separate, when effective when described full address selection position, choose whole control chips that four address bits represent, described whole controls
Described first data in the coremaking piece described control signal of reception, the second data, the 3rd data, the 4th data export difference respectively
The luminance signal of dutycycle drives described LED module work；When described full address selection position is invalid, by described control chip ground
Compared with the address in described control signal in the address at location end, the described control chip chosen when identical when address is according to institute
State described first data in control signal, the second data, the 3rd data, the 4th data export the briliancy of different duty respectively
Signal drives described LED module work.
The beneficial effect that this utility model is compared with the prior art is：
A kind of Power Carrier communication LED of the present utility model controls driving chip, controls it is only necessary to electricity with respect to former lamp string
Source and ground both threads, briliancy and chip address data are carried on power supply voltage signal, and periphery is less, and cable is less, improves life
Produce efficiency, reduce development cost, improve product profit rate.
Brief description
Fig. 1 is this utility model control circuit structural representation；
Fig. 2 is the control circuit structural representation that this utility model simplifies；
Fig. 3 is the electrical block diagram of this utility model drive module；
Fig. 4 is this utility model data controlling signal schematic diagram；
Fig. 5 is the application circuit of this utility model drive module.
Specific embodiment
The LED control circuit as shown in figure 1, a kind of Power Carrier communicates, including control module 10, drives module 20 and LED
Module 30, control module 10 includes MCU and voltage regulator module, and the data controlling signal of MCU output control LED module is to voltage
Adjusting module, voltage regulator module is modulated to data controlling signal, and data controlling signal is converted into low and high level table
Show, continue T1 time and low level with high level and continue the combination of T2 time to represent Quick Response Code 1, with low level continue the T1 time and
The combination that high level continues the T2 time represents Quick Response Code 0, and high level takes the supply voltage of voltage regulator module, and low level takes and is less than
Any value of the supply voltage value of voltage regulator module, in the present embodiment low level take the supply voltage value of voltage regulator module
1/2nd, using the low and high level with data controlling signal as the supply voltage of drive module, be applied to drive module
20 power end.
Module 20 is driven to include N number of drive module, N number of drive module has identical structure, each drive module drives
At least one LED string, drives 4 LED strings in the present embodiment；
For cheer and bright explanation this utility model, Fig. 2 is simplified to Fig. 1, and control module 10 connects a drive
Dynamic model block 1, drive module 1 drives 4 LED string work, is just illustrated with Fig. 2 below, remaining each road operation principle is identical,
Repeat no more.
Each drive module is made a distinction by the address that it sets, for being demodulated to the data controlling signal after modulation.
The structure of drive module 1 is as shown in figure 3, include oscillating circuit, reference voltage circuit, voltage comparator circuit, logic
Control circuit, carrier data circuit, address arranges circuit, and briliancy produces circuit, output driving circuit；Described oscillating circuit and institute
State carrier data circuit be connected, described reference voltage circuit is connected with voltage comparator circuit, the outfan of voltage comparator circuit and
The input of carrier data circuit is connected, and carrier data circuit is connected with described logic control circuit, described logic controller
The input that outfan produces circuit with briliancy is connected, and described briliancy produces the outfan of circuit and the input of output driving circuit
End is connected, and output driving circuit output connects output pin；When described oscillating circuit is used for providing generation oscillation frequency signal, system
Clock, described reference voltage circuit provides one not with the reference voltage of supply voltage and temperature change, and reference voltage value is less than low
Level value.Reference voltage value described in the present embodiment is 1.2V.
Supply voltage after electric resistance partial pressure, is compared by described voltage comparator circuit with reference voltage, will be carried in
Data controlling signal on supply voltage is separated, and obtains the data controlling signal of LED.
The output result of voltage comparator circuit is utilized the sampling of system hour hands by described carrier data, by voltage comparative result
It is converted into carrier data.
Described oscillating circuit is used for producing oscillation frequency signal, and drive module utilizes described oscillation frequency signal, will be described
Data controlling signal is converted into drive module address date and the luminance data of each LED string.
Address setting circuit is provided with 4 bit address setting ends, and for setting drive module address, described address setting end is passed through
Connect power end VDD or ground terminal GND represents different driving addresses, or be configured by the break-make of the internal FUSE of IC.
Described logic control circuit is used for the address in the address at described address setting end and described data controlling signal
It is compared.
In the present embodiment, as shown in figure 4, the combination that high level continues the 7us and lasting 3.5us of low level represents Quick Response Code 1,
Represent Quick Response Code 0 with the combination that low level continues the 7us and lasting 3.5us of high level, length is more than the low voltage signal of 50us, generation
Table RESET, illustrates that data is activation terminates.
One frame data when be about 10us, once communication send 5 byte datas, form be control code+the first data+the second
Data the+the three data the+the four data, duration is 400us, adds end frame signal about 450us, and therefore MCU control end is once sent out
Send data to be about 500us when needing, 2000 secondary data in one second, can be sent.
The form of described data controlling signal is control code the+the first data the+the second data the+the three data the+the four data+knot
Bundle frame information, in the present embodiment, control code, the first data, the second data, the 3rd data, the 4th data are set to 8,
In 8 of wherein control code, 3 is reserved bit, and 4 is address bit, and 1 is full address selection position, when full address selection position has
During effect, the drive module of all addresses that 4 bit address positions (0000,0001,0011 ... 1111) represent all is chosen, and receives control
Code processed all data messages below；When full address selection position is invalid, enter row address contrast, to the ground in data controlling signal
The address that location is set with drive module is contrasted, and when only identical when two addresses, this drive module just can be selected, works as drive
After dynamic model block is selected, drive module receives control code all data messages below, unselected drive module not receiving data
Information, so can realize in the LED string of 16 tunnels outputs, as long as wherein one tunnel is bright or the effect gone out.Control in the present embodiment
Representation processed is as follows：
0：Mode address agreement position
First data, the second data, the 3rd data, the 4th data (0000 FFFF) represent different LED strings respectively
Brightness data information, different LED strings are the LED string of different colours, such as red, green, blue, white etc..Brightness data
Information is expressed as follows：
Control module 10 first sends out a high position when sending data, then sends out low level.Dairy product address protocol position, presses the first number afterwards
According to, position sends successively from high to low for the order of the second data, the 3rd data, the 4th data.
Described briliancy produces circuit and the described data message in described data controlling signal is converted into different duty
Luminance signal, 8 data messages represent 0-255 different numerical value, the different brightness of the corresponding LED string of different numerical value, work as numerical value
During for 0, the brightness of LED string is minimum, and lamp goes out, and when data is 255, the brightness of LED string is maximum, when data is middle a certain
During numerical value, when such as 128, performance PWM is output as 128/256 dutycycle output brightness.
Output driving circuit connects external LED drive end, for driving described LED module work according to described luminance signal
Make.
The circuit of drive circuit connects as shown in figure 5, being loaded with data controlling signal on supply voltage, as long as a power supply
Line, a ground wire just can be controlled to the brightness of LED.
Described drive circuit is setting in the form of chip.
Described chip at least drives a paths of LEDs module, and described chip is together with described LED module packaging.
Described chip has four addresses setting PAD, can arrange altogether from 0000～1111 totally 16 different addresses.
Above content is with reference to specific/preferred embodiment further detailed description of the utility model,
It cannot be assumed that of the present utility model be embodied as being confined to these explanations.Common for this utility model art
For technical staff, without departing from the concept of the premise utility, it can also be made to the embodiment that these have described that
Some replacements or modification, and these substitute or variant all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a kind of Power Carrier communication LED control chip is it is characterised in that include oscillating circuit, reference voltage circuit, voltage ratio
Compared with circuit, logic control circuit, carrier data circuit, chip address arranges circuit, and briliancy produces circuit, output driving circuit；
Described oscillating circuit is connected with described carrier data circuit, and described reference voltage circuit is connected with described voltage comparator circuit, institute
The outfan stating voltage comparator circuit is connected with the input of described carrier data circuit, described carrier data circuit, described core
Piece address setting circuit is connected with described logic control circuit, and the outfan of described logic controller produces the defeated of circuit with briliancy
Enter end to be connected, the outfan that described briliancy produces circuit is connected with the input of described output driving circuit, described output driving
Circuit output connects output pin；Described oscillating circuit is used for providing generation oscillation frequency signal, system clock, described reference voltage
Circuit provides one not with the reference voltage of supply voltage and temperature change.
2. according to claim 1 chip it is characterised in that described voltage comparator circuit by supply voltage pass through electric resistance partial pressure
Afterwards, it is compared with described reference voltage, the data signal loading on the supply voltage is separated, obtains carrier data；
Described reference voltage value is 1.2V.
3. chip, it is characterised in that chip address setting circuit link address setting end, is used for setting according to claim 1
Determine chip address, described address setting end is 4.
4. according to claim 3 chip it is characterised in that described logic control circuit is used for described address setting end
Address is compared with the address in described carrier data, is followed by receiving the data letter in carrier data when described chip is selected
Breath；Described voltage comparative result is converted into carrier data using described system clock by described carrier data circuit.
5. according to claim 1 chip it is characterised in that described briliancy produce circuit described luminance data is converted into not
Luminance signal with dutycycle；Described output driving circuit connects external LED drive end, for being driven according to described luminance signal
Described LED module work.
6. according to claim 1 chip it is characterised in that described chip at least drives a paths of LEDs module, described chip with
Described LED module packaging is together；Described chip has the memory space that can store at least four encoder addresses.
7. according to claim 1 chip it is characterised in that the external connection circuit of described chip include control module and
LED module, the control signal that described control module exports connects as the supply voltage of described chip, the drive end of described chip
Described LED module, the address end of described chip is configured by connecting supply voltage or power supply ground terminal, or passes through inside IC
The break-make of FUSE is configured.
8. a kind of Power Carrier communication LED control circuit, controls core including control module, at least one Power Carrier communication LED
Piece and LED module, the outfan of described control module connects the power end of described control chip, the address end of described control chip
Connect supply voltage or power supply ground, the outfan of described control chip connects described LED module.
9. circuit is it is characterised in that described control module includes MCU and voltage regulator module, described according to claim 8
Data controlling signal is transferred to described voltage regulator module by MCU, and described voltage regulator module is adjusted to described data controlling signal
System, the control signal of described control module output is to combine with low-voltage various durations with high voltage to represent Quick Response Code, institute
State control signal and include control code, the first data, the second data, the 3rd data, the 4th data and frame end information, described control
Code includes full address selection position, four address bits, and described first data, the second data, the 3rd data, the 4th data are respectively
Including 8, represent the different briliancy of LED, described frame end information exceedes setting time with the low-voltage persistent period and represents.
10. according to claim 9 circuit it is characterised in that described control chip by described control signal from supply voltage
In separate, choose whole control chips that four address bits represent when effective when described full address selection position, described all
Described first data in the control chip described control signal of reception, the second data, the 3rd data, the 4th data export not respectively
Drive described LED module work with the luminance signal of dutycycle；When described full address selection position is invalid, by described control chip
Compared with the address in described control signal in the address at address end, the described control chip chosen when identical when address according to
Described first data in described control signal, the second data, the 3rd data, the 4th data export the brightness of different duty respectively
Degree signal drives described LED module work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620745860.2U CN205992997U (en) | 2016-07-14 | 2016-07-14 | A kind of Power Carrier communication LED control chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620745860.2U CN205992997U (en) | 2016-07-14 | 2016-07-14 | A kind of Power Carrier communication LED control chip |
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| Publication Number | Publication Date |
|---|---|
| CN205992997U true CN205992997U (en) | 2017-03-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620745860.2U Withdrawn - After Issue CN205992997U (en) | 2016-07-14 | 2016-07-14 | A kind of Power Carrier communication LED control chip |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211433A (en) * | 2016-07-14 | 2016-12-07 | 深圳市菉华半导体有限公司 | A kind of Power Carrier communication LED control chip |
| CN108650751A (en) * | 2018-07-23 | 2018-10-12 | 上海芯鸿电子科技有限公司 | A kind of color LED lamp bead of two lines communication |
| CN109041332A (en) * | 2018-07-17 | 2018-12-18 | 宗仁科技(平潭)有限公司 | A kind of LED light string and its control chip |
| CN112532321A (en) * | 2020-11-22 | 2021-03-19 | 湖北久之洋红外系统股份有限公司 | Large dynamic range data communication method of portable laser communication equipment |
| WO2024026957A1 (en) * | 2022-08-05 | 2024-02-08 | Tcl华星光电技术有限公司 | Light-emitting module and control method therefor, and display module |
-
2016
- 2016-07-14 CN CN201620745860.2U patent/CN205992997U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211433A (en) * | 2016-07-14 | 2016-12-07 | 深圳市菉华半导体有限公司 | A kind of Power Carrier communication LED control chip |
| CN106211433B (en) * | 2016-07-14 | 2018-07-20 | 深圳市菉华半导体有限公司 | A kind of Power Carrier communication LED control chips |
| CN109041332A (en) * | 2018-07-17 | 2018-12-18 | 宗仁科技(平潭)有限公司 | A kind of LED light string and its control chip |
| CN109041332B (en) * | 2018-07-17 | 2021-06-01 | 宗仁科技(平潭)有限公司 | LED lamp string and control chip thereof |
| CN108650751A (en) * | 2018-07-23 | 2018-10-12 | 上海芯鸿电子科技有限公司 | A kind of color LED lamp bead of two lines communication |
| CN112532321A (en) * | 2020-11-22 | 2021-03-19 | 湖北久之洋红外系统股份有限公司 | Large dynamic range data communication method of portable laser communication equipment |
| CN112532321B (en) * | 2020-11-22 | 2022-04-08 | 湖北久之洋红外系统股份有限公司 | Large dynamic range data communication method of portable laser communication equipment |
| WO2024026957A1 (en) * | 2022-08-05 | 2024-02-08 | Tcl华星光电技术有限公司 | Light-emitting module and control method therefor, and display module |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170301 Effective date of abandoning: 20180720 |