CN106132013B - A kind of Power Carrier communication LED control method - Google Patents
A kind of Power Carrier communication LED control method Download PDFInfo
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- CN106132013B CN106132013B CN201610557049.6A CN201610557049A CN106132013B CN 106132013 B CN106132013 B CN 106132013B CN 201610557049 A CN201610557049 A CN 201610557049A CN 106132013 B CN106132013 B CN 106132013B
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- 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]
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- 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]
- H05B45/10—Controlling the intensity of the light
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- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/185—Controlling the light source by remote control via power line carrier transmission
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Abstract
The invention discloses a kind of Power Carrier communication LED control methods to include the following steps：A1, control module generate LED data controlling signals and are modulated to the data controlling signal, and the modulated data controlling signal is applied on the supply voltage of drive module；A2, drive module, including address, end and LED output ends are set, using the modulated data controlling signal as power input, the supply voltage is demodulated to obtain the data controlling signal, according to data controlling signal control LED light work, the method for electrically only needs two lines to achieve that the control to multiple LED modules, realizes complicated and beautiful flicker effect.
Description
Technical field
The present invention relates to LED control fields, and driving method is controlled more particularly to a kind of Power Carrier communication LED.
Background technology
Christmas lamp is the adornment that western countries are commonly used on Christmas tree on Christmas Day.Flowing water is realized with control circuit,
The styling effects such as flicker, build better festive air.In addition to family's use, shop, street etc. also all more use.At present
What is also used at home is more and more.
The component part of Christmas lamp, a predominantly several cluster of lamps, ornamental and a control box.It is general to be to provide because each one likes difference more
Several different flicker styles are selected to user, and style switching is carried out by a button in control box.It is most common in the market
A kind of Christmas lamp control circuit, be the control of eight sections of four tunnel, eight kinds of flicker styles selections be provided.It is typically only capable to realize that some compare
The flicker style on basis.
The mode of either traditional Christmas lamp control circuit or cascaded transmission data, all the problem is that needing
Cable length it is very long, the proportion that the cost of cable accounts for totle drilling cost is high, while assembling complexity and needing manpower more.
In order to realize more complicated flicker pattern control, can be controlled using MCU, it in this way can be with algorithm come real
Existing complicated style, while adjusting simpler.Such as common TM1803 on the market, pass through DIN and DOUT and MCU phases
Data, by cascade mode, are sent to the drive control circuit of LED from MCU, each output of each IC may be implemented by connection
256 grades of briliancy are adjustable.The algorithm of MCU is coordinated to realize that complicated LED effects, lamp string control IC TM1803 classes by transmitting number
According to the LED control driving IC of control briliancy, in addition to needing power cord, it is also necessary to the number of the Data In-Line and DOUT of a line DIN
According to output line, three lines or four lines are at least wanted, therefore reduces number of wires and is a problem to be solved.
Invention content
The object of the invention is exactly to solve the problems, such as that number of wires is more during LED controls.
The technical problem of the present invention is resolved by technical solution below：
A kind of Power Carrier communication LED control method, includes the following steps：
A1, control module generate LED data controlling signals and are modulated to the data controlling signal, will be modulated
The data controlling signal is applied on the supply voltage of drive module；
A2, drive module, including address setting end and LED output ends, are electricity with the modulated data controlling signal
Source inputs, and is demodulated to obtain the data controlling signal to the supply voltage, and LED is controlled according to the data controlling signal
Lamp works.
Another specific aspect according to the present invention, the data controlling signal include control code, data information and frame knot
Beam information；
The control code includes address information, and the data information includes the luminance information of different LED modules.
Another specific aspect according to the present invention, the control code are 8, wherein three are reserved bit, four are ground
Location position, one selects position for full address.
There are 4 bit address end, the data information is arranged for another specific aspect according to the present invention, the drive module
Including the first data, the second data, third data, the 4th data, when the full address selects effective, what four bit address positions indicated
The drive module of 16 addresses, which is all chosen, receives first data, the second data, third data, the 4th data and frame
End signal, and control LED module according to first data, the second data, third data, the 4th data and frame end signal
Work.
There are 4 bit address end, the data information is arranged for another specific aspect according to the present invention, the drive module
Including the first data, the second data, third data, the 4th data, when the full address selects invalid, the drive module carries out
Address compares, when the address in the control code is identical as the address that drive module address setting end is arranged, the drive
Dynamic model block receives first data, the second data, third data, the 4th data and frame end signal；When in the control code
The address that is arranged of address and drive module address setting end when differing, first data, the second data, third number
It is invalid to the drive module according to, the 4th data and frame end signal.
Another specific aspect according to the present invention, the drive module are compared by reference voltage and supply voltage
Compared with load data-signal on the supply voltage is separated, data controlling signal is obtained.
Another specific aspect according to the present invention, the drive module by the data controlling signal address and institute
The address for stating drive module setting is compared, and corresponding driving mould is chosen according to the control code in the data controlling signal
Block.
Another specific aspect according to the present invention, the drive module is by the data information in the data controlling signal
It is converted into the output of different duty, control LED module work.
Another specific aspect according to the present invention, the data controlling signal are held with the high voltage duration with low-voltage
Continuous time various combination indicates binary code.
Another specific aspect according to the present invention continues the T1 times with high voltage, low-voltage continues T2 ageing tables
Show binary code 1, the T2 times are continued with high voltage, low-voltage continues T1 ageings and indicates binary code 0, is continued with low-voltage
The T3 times indicate frame end.
Another specific aspect according to the present invention, the T1 times are 7000ns, and the T2 times are 3500ns, described
The T3 times are 50us.
Another specific aspect according to the present invention, the high voltage are 5V, and the high voltage is 2.5V.
According to the control circuit of the method for the invention, including control module, at least one drive module and LED module,
The output end of the control module connects the drive module power end, and the output end of the drive module connects the LED moulds
Group, the control module include MCU and voltage regulator module, and data controlling signal is transferred to the voltage and adjusted by the MCU
Module, the voltage regulator module modulates the data controlling signal, with high level lasting time and low duration
Various combination indicate binary code, representing data transmission with the low-voltage of setting time terminates, and the data are controlled
Signal is applied to the drive module power end；The drive module is for demodulating the data controlling signal, by institute
The luminance signal that data controlling signal is converted into LED module is stated, and LED moulds are driven according to the luminance signal output drive signal
Group work.
Another specific aspect according to the present invention, the drive module include oscillating circuit, reference voltage circuit, voltage
Circuit, briliancy generation circuit, output driving circuit, institute is arranged in comparison circuit, logic control circuit, carrier data circuit, address
It states oscillating circuit with the carrier data circuit to be connected, the reference voltage circuit is connected with voltage comparator circuit, and voltage compares
The output end of circuit is connected with the input terminal of carrier data circuit, and carrier data circuit is connected with the logic control circuit, institute
The output end for stating logic controller is connected with the input terminal of briliancy generation circuit, the output end of the briliancy generation circuit and output
The input terminal of driving circuit is connected, and output driving circuit output connects output pin；The oscillating circuit generates oscillation frequency for providing
Rate signal, system clock, the reference voltage circuit offer one are described not with the reference voltage of supply voltage and temperature change
Circuit is arranged in address, and there is address end is arranged, and the voltage value at end be arranged by described address or by the break-make of FUSE inside IC
The address of the drive module is set, the supply voltage of the drive module is passed through electric resistance partial pressure by the voltage comparator circuit
Afterwards, output signal compared with then being compared to obtain the voltage with the reference voltage, the carrier data are more electric by voltage
The output result on road utilizes the sampling of system hour hands, converts voltage comparison result to carrier data.The logic control circuit
Carrier data and chip address are made into logic synthesis, obtain the luminance data of each lamp.The briliancy generation circuit is according to the brightness
Degrees of data exports the luminance signal of different duty, and output driving circuit connects the LED module, for being believed according to the briliancy
Number driving LED module work.
The beneficial effect of the present invention compared with the prior art is：
A kind of Power Carrier of the present invention communicates LED control method, is controlled relative to former lamp string, it is only necessary to power supply and ground two
Root line, briliancy and the load of circuit address data are on power supply voltage signal, and periphery is less, and cable is less, improve production efficiency, drop
Low development cost improves product profit rate.
Description of the drawings
Fig. 1 is control circuit structural representation of the present invention；
Fig. 2 is the control circuit structural representation that the present invention simplifies；
Fig. 3 is the electrical block diagram of drive module of the present invention；
Fig. 4 is Data Data control signal schematic representation of the present invention；
Fig. 5 is the application circuit of drive module of the present invention；
Fig. 6 is brightness data information schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of Power Carrier communicates LED control circuit, including control module 10, driving module 20 and LED
Module 30, control module 10 include MCU and voltage regulator module, and MCU exports the data controlling signal of control LED module to voltage
Module is adjusted, and voltage regulator module is modulated data controlling signal, data controlling signal is converted with low and high level table to
Show, continues the T1 times with high level and low level continues the combination of T2 times and indicates binary code 1, continue the T1 times with low level
The combination for continuing the T2 times with high level indicates that binary code 0, high level take the supply voltage of voltage regulator module, low level to take
Less than any value of the supply voltage value of voltage regulator module, low level takes the power supply electricity of voltage regulator module in the present embodiment
The half of pressure value is applied to driving using the low and high level with data controlling signal as the supply voltage of drive module
The power end of module 20.
It includes N number of drive module, N number of drive module structure having the same, each drive module driving to drive module 20
At least one LED light string drives 4 LED light strings in the present embodiment；
For the cheer and bright present invention that illustrates, fig. 1 is simplified by Fig. 2, and control module 10 connects a driving mould
Block 1, drive module 1 are driven 4 LED light string work, are just illustrated below with Fig. 2, remaining each road operation principle is identical, no longer
It repeats.
Each drive module is distinguished by the address of its setting, for being demodulated to modulated data controlling signal.
The structure of drive module 1 is as shown in figure 3, include oscillating circuit, reference voltage circuit, voltage comparator circuit, logic
Circuit, briliancy generation circuit, output driving circuit is arranged in control circuit, carrier data circuit, address；The oscillating circuit and institute
State carrier data circuit be connected, the reference voltage circuit is connected with voltage comparator circuit, the output end of voltage comparator circuit and
The input terminal of carrier data circuit is connected, and carrier data circuit is connected with the logic control circuit, the logic controller
Output end is connected with the input terminal of briliancy generation circuit, the input of the output end and output driving circuit of the briliancy generation circuit
End is connected, and output driving circuit output connects output pin；When the oscillating circuit generates oscillation frequency signal, system for providing
Clock, the reference voltage circuit provide 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.
The voltage comparator circuit by supply voltage by electric resistance partial pressure after, be compared with reference voltage, by load exist
Data controlling signal on supply voltage is separated, and the data controlling signal of LED is obtained.
The output result of voltage comparator circuit is utilized the sampling of system hour hands by the carrier data, by voltage comparison result
It is converted into carrier data.
The oscillating circuit utilizes the oscillation frequency signal for generating oscillation frequency signal, drive module, will be described
Data controlling signal is converted into the luminance data of drive module address date and each LED light string.
Address is arranged circuit and is equipped with 4 bit address setting end, and for setting drive module address, described address setting end passes through
Connection power end VDD or ground terminal GND indicates different driving addresses, or is configured by the break-make of FUSE inside IC.
The address and the address in the data controlling signal that the logic control circuit is used to described address end is arranged
It is compared.
In the present embodiment, as shown in figure 4, high level continues 7us and low level continues the combination expression binary code of 3.5us
1, continue 7us with low level and high level continues the combination of 3.5us and indicates that binary code 0, low-voltage of the length more than 50us are believed
Number, RESET is represented, illustrates that data transmission terminates.
One frame data when be about 10us, primary communication sends 5 byte datas, format the+the first data+the second of code in order to control
The+the four data of data+third data, duration is 400us, in addition terminate frame signal about 450us, therefore MCU control terminals are once sent out
It is about 500us when data being sent to need, 2000 data can be sent in one second.
The format of the data controlling signal the+the second data of the+the first data of code+the+the four data of third data+knot in order to control
Beam frame information, in the present embodiment, control code, the first data, the second data, third data, the 4th data are set to 8,
Wherein in 8 of control code, 3 are reserved bits, and 4 are address bit, and 1 selects position for full address, when full address selection position has
When effect, (drive module of 0000,0001,0011 ... 1111) all addresses indicated is all chosen, and control is received for 4 bit address positions
The subsequent all data informations of code processed；When full address selection position is invalid, compared into row address, to the ground in data controlling signal
The address that location is set with drive module is compared, and only when two addresses are identical, the drive module can be just selected, and work as drive
After dynamic model block is selected, drive module receives the subsequent all data informations of control code, and unselected drive module does not receive data
Information may be implemented in the LED light string that 16 tunnels export, in this way as long as effect that is wherein bright all the way or going out.It is controlled in the present embodiment
Code processed indicates as follows：
0：Mode address agreement position
First data, the second data, third data, the 4th data (00-FF) respectively represent the brightness of different LED light strings
Data information, different LED light strings are the LED light string of different colours, such as red, green, blue, white.Brightness data information
It indicates as shown in fig. 6, when 10 transmission data of control module first sends out a high position, then sends out low level.Dairy product address protocol position presses the afterwards
One data, the second data, third data, position is sent the sequence of the 4th data successively from high to low.
The briliancy generation circuit converts the data information in the data controlling signal to different duty
Luminance signal, 8 data informations indicate that 0-255 different numerical value, different numerical value correspond to the different brightness of LED light string, works as numerical value
When being 0, the brightness of LED light string is minimum, and lamp goes out, and when data are 255, the brightness of LED light string is maximum, when data are intermediate a certain
When numerical value, such as when 128, performance PWM outputs export brightness for 128/256 duty ratio.
Output driving circuit connects external LED and drives end, for driving the LED module work according to the luminance signal
Make.
The circuit of driving circuit connects as shown in figure 5, data controlling signal is loaded on supply voltage, as long as a power supply
Line, a ground wire can control the brightness of LED.
There are four addresses, and PAD is arranged with driving circuit tool for the control circuit, can be arranged altogether total from 0000~1111
16 different addresses.
It, cannot the above content is specific/preferred embodiment further description made for the present invention is combined
Assert that the specific implementation of the present invention is confined to these explanations.General technical staff of the technical field of the invention is come
It says, without departing from the inventive concept of the premise, some replacements or modification can also be made to the embodiment that these have been described,
And these are substituted or variant all shall be regarded as belonging to protection scope of the present invention.
Claims (4)
1. a kind of Power Carrier communicates LED control method, which is characterized in that include the following steps：
A1, control module generate LED data controlling signals and are modulated to the data controlling signal, will be modulated described
Data controlling signal is applied on the supply voltage of drive module；
The data controlling signal includes control code, data information and frame end information；
The control code includes address information, and the data information includes the luminance information of different LED modules；
The data controlling signal indicates binary code with high voltage duration and low-voltage duration various combination；With height
Voltage continues the T1 times, low-voltage continues T2 ageings and indicates binary code 1, continues the T2 times with high voltage, low-voltage is held
Continuous T1 ageings indicate binary code 0, and continuing the T3 times with low-voltage indicates frame end；
A2, drive module, including address setting end and LED output ends, it is defeated as power supply using the modulated data controlling signal
Enter, the supply voltage is demodulated to obtain the data controlling signal, LED light work is controlled according to the data controlling signal
Make；
The drive module have 4 bit address be arranged end, the data information include the first data, the second data, third data,
4th data, four are address bit in the control code, and one selects position for full address；When full address selection position is effective,
The drive module for 16 addresses that four bit address positions indicate, which is all chosen, receives first data, the second data, third
Data, the 4th data and frame end signal, and according to first data, the second data, third data, the 4th data and frame knot
Beam signal controls LED module work；
When full address selection position is invalid, the drive module is compared into row address, when in the control code address and institute
State address that drive module address setting end is arranged it is identical when, the drive module receives first data, the second data, the
Three data, the 4th data and frame end signal；When the address in the control code is arranged with drive module address setting end
Address when differing, first data, the second data, third data, the 4th data and frame end signal are to the driving
Module is invalid.
2. method according to claim 1, which is characterized in that the drive module is carried out by reference voltage and supply voltage
Compare, the data-signal of load on the supply voltage is separated, data controlling signal is obtained；The drive module will be described
Address in data controlling signal is compared with the address of the drive module setting, according in the data controlling signal
Control code chooses corresponding drive module；The drive module converts the data information in the data controlling signal to difference
The output of duty ratio, control LED module work.
3. the control circuit of method according to claim 1, which is characterized in that including control module, at least one driving mould
The output end of block and LED module, the control module connects the drive module power end, and the output end of the drive module connects
The LED module is connect, the control module includes MCU and voltage regulator module, and data controlling signal is transferred to institute by the MCU
Voltage regulator module is stated, the voltage regulator module modulates the data controlling signal, with high level lasting time and low electricity
The various combination of flat duration indicates binary code, and representing data transmission with the low-voltage of setting time terminates, and by institute
It states data controlling signal and is applied to the drive module power end；The drive module is used to carry out the data controlling signal
Demodulation, converts the data controlling signal to the luminance signal of LED module, and according to the luminance signal output drive signal
Drive LED module work.
4. the control circuit of method according to claim 3, which is characterized in that the drive module includes oscillating circuit, base
Quasi- potential circuit, voltage comparator circuit, logic control circuit, carrier data circuit, address setting circuit, briliancy generation circuit,
Output driving circuit, the oscillating circuit are connected with the carrier data circuit, and the reference voltage circuit and voltage are more electric
Road is connected, and the output end of voltage comparator circuit is connected with the input terminal of carrier data circuit, carrier data circuit and the logic
Control circuit is connected, and the output end of the logic controller is connected with the input terminal of briliancy generation circuit, and the briliancy generates electricity
The output end on road is connected with the input terminal of output driving circuit, and output driving circuit output connects output pin；The oscillating circuit is used
Oscillation frequency signal, system clock are generated in providing, the reference voltage circuit provides one and do not become with supply voltage and temperature
The reference voltage of change, circuit is arranged in described address, and there is address end is arranged, and the voltage value at end is arranged by described address or leads to
The break-make for crossing FUSE inside IC sets the address of the drive module, and the voltage comparator circuit is by the power supply of the drive module
Voltage, after electric resistance partial pressure, then output signal compared with being compared to obtain the voltage with the reference voltage, the carrier wave
The output result of voltage comparator circuit is utilized the sampling of system hour hands by data, converts voltage comparison result to carrier data；
Carrier data and chip address are made logic synthesis by the logic control circuit, obtain the luminance data of each lamp；The carrier number
The system clock is utilized according to circuit, each LED is exported in order to control by the brilliance control information conversion in the data controlling signal
Luminance data, the briliancy generation circuit according to the luminance data export different duty luminance signal, output driving
Circuit connects the LED module, for driving the LED module to work according to the luminance signal.
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| CN201610557049.6A CN106132013B (en) | 2016-07-14 | 2016-07-14 | A kind of Power Carrier communication LED control method |
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| CN201610557049.6A CN106132013B (en) | 2016-07-14 | 2016-07-14 | A kind of Power Carrier communication LED control method |
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| CN106132013B true CN106132013B (en) | 2018-08-14 |
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| CN204759719U (en) * | 2015-06-16 | 2015-11-11 | 深圳市菉华半导体有限公司 | Wireless remote control decoding device |
| CN105101574A (en) * | 2015-09-06 | 2015-11-25 | 广德利德光电有限公司 | Two-wire light emitting diode (LED) driving control integrated circuit with power supply and signal combined |
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2016
- 2016-07-14 CN CN201610557049.6A patent/CN106132013B/en active Active
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