CN107509283A - A kind of both positive and negative polarity LED control system altogether - Google Patents
A kind of both positive and negative polarity LED control system altogether Download PDFInfo
- Publication number
- CN107509283A CN107509283A CN201710918921.XA CN201710918921A CN107509283A CN 107509283 A CN107509283 A CN 107509283A CN 201710918921 A CN201710918921 A CN 201710918921A CN 107509283 A CN107509283 A CN 107509283A
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- circuit
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- positive
- main control
- control chip
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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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- 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]
Abstract
The invention discloses a kind of both positive and negative polarity LED control system altogether, including possessing the power supply of 3 36V low pressure, the power line for possessing joint, the control circuit electrically connected with power line and the LED string electrically connected with control circuit, the LED string include n bars control line and n ×（n‑1）Paths of LEDs lamp, positive and negative between every two control lines to be connected in parallel LED described in two-way, control line described in n bars is all connected to control circuit.A kind of both positive and negative polarity LED control system altogether of the present invention, is connected in parallel two paths of LED lamp by positive and negative between every two control lines, to save required control line, reduces the manufacturing cost of LED string.
Description
Technical field
The present invention relates to LED and multi-channel control technical field, more specifically, it relates to a kind of both positive and negative polarity LED altogether
Control system.
Background technology
LED has the advantages that energy saving, efficient, environmental protection, long lifespan, increasingly by people's extensive use.It is now
It is convenient that LED is powered, the power line with joint is employed, adaptability is stronger, so as to pass through the socket of various models, electricity
Brain server or charger baby etc. can be that LED is powered.Wherein, the control circuit of traditional LED, wiring is complicated, and needs to make
Control line is more, and manufacturing cost is big；As shown in figure 1, for example needing to set 6 paths of LEDs lamps, then 7 control lines are needed to use,
And the LED way set is more, the control line used is more, and wiring is more complicated, and increased manufacturing cost is higher.Therefore need
A kind of new scheme is proposed to solve this problem.
The content of the invention
In view of the deficienciess of the prior art, both positive and negative polarity LED control system is total to it is an object of the invention to provide a kind of,
Two paths of LED lamp is connected in parallel by positive and negative between every two control lines, to save required control line, reduces LED string
Manufacturing cost.
The present invention above-mentioned technical purpose technical scheme is that：A kind of both positive and negative polarity LED control altogether
System processed, including possess the power supply of 3-36V low pressure, the power line for possessing joint, the control circuit electrically connected with power line and
The LED string electrically connected with control circuit, the LED string include n bars control line and n ×（n-1）Paths of LEDs lamp, every two institutes
State it is positive and negative between control line be connected in parallel LED described in two-way, control line described in n bars is all connected to control circuit.
By using above-mentioned technical proposal, n bar control lines are served only for controlling in traditional LED string（n-1）Paths of LEDs lamp,
The LED way of control is more needed for causing, then needs the control line that uses more, the wiring of its control line is also more cumbersome, simultaneously
Inevitably required cost is also higher；Therefore utilize LED（Light emitting diode）Characteristic, between every two control lines
It is positive and negative to be connected in parallel two paths of LED lamp, so allow for n bars control line can connect n ×（n-1）Paths of LEDs lamp, and and conventional art
Compare, the LED way of setting is more, and the control line that can be saved is more, so as to greatly reduce being manufactured into for LED string
This.
The present invention is further arranged to：The bar number n of the control line is more than or equal to 3.
By using above-mentioned technical proposal, the LED way of setting is more, and the control line that can be saved is more, so as to
Reduce the manufacturing cost of LED string.
The present invention is further arranged to：The control circuit includes main control chip and the switch being connected with main control chip
Circuit, the input of the on-off circuit are coupled to main control chip, and output end is coupled to LED string.
By using above-mentioned technical proposal, LED string is controlled after on-off circuit by main control chip, so that LED
Lamp string realizes various flickers, Chang Liang, dimming function.
The present invention is further arranged to：The on-off circuit includes the n sub- on-off circuits to match with n bar control lines,
The sub switch circuit includes P-channel field-effect transistor (PEFT) pipe and N-channel FET, and the grid of P-channel field-effect transistor (PEFT) pipe is coupled to master control
The output end of chip, the drain electrode of P-channel field-effect transistor (PEFT) pipe are coupled to power end, and the source electrode of P-channel field-effect transistor (PEFT) pipe is coupled to N-channel field
The drain electrode of effect pipe and the tie point of LED string, the grid of N-channel FET be coupled to the grid of P-channel field-effect transistor (PEFT) pipe with
The tie point of main control chip output end, the source ground of N-channel FET.
By using above-mentioned technical proposal so that the n P-channel field-effect transistor (PEFT) pipes and N-channel of sub- on-off circuit between any two
FET forms control loop, so as to light the LED in the control loop, by controlling the break-make of different control loops,
To realize the blinking form of various difference in functionalitys.
The present invention is further arranged to：The main control chip is also associated with memory chip.
By using above-mentioned technical proposal, memory chip is set so that during control circuit unlatching next time, LED string is still
Order when can be closed with last time is lit.
The present invention is further arranged to：The main control chip is also associated with crystal oscillating circuit.
By using above-mentioned technical proposal, the function of timing is realized by crystal oscillating circuit, so as to realize that LED string can be determined
When close and time opening, be easy to control.
The present invention is further arranged to：The main control chip is also associated with light-operated circuit, and the light-operated circuit includes photosensitive
Triode, its colelctor electrode are coupled to main control chip, its grounded emitter.
By using above-mentioned technical proposal, light-operated circuit is set, is realized by phototriode and only works as environment illumination intensity
During less than predetermined value, LED string can just be opened, and avoid causing the waste of the energy.
The present invention is further arranged to：The main control chip is also associated with wireless receiving circuit, the wireless receiving circuit
For infrared receiving circuit, the infrared receiving circuit includes infrared remote receiver, and there is the first pin, second pin and the 3rd to draw for it
Pin, first pin are coupled to main control chip, for sending pulse signal, the second pin ground connection, institute to main control chip
State the 3rd pin and be coupled to power end.
By using above-mentioned technical proposal, because LED string may be placed on eminence, personnel control inconvenience sometimes；Therefore
Infrared remote receiver is set so that can pass through the keying of IR remote controller remote control LED string and the sudden strain of a muscle of adjustment LED string
Bright mode, personnel control of being more convenient for.
In summary, the invention has the advantages that：It is equal between every two control lines using the characteristic of LED
It is positive and negative to be connected in parallel two paths of LED lamp, so allow for n bars control line can connect n ×（n-1）Paths of LEDs lamp, with conventional art phase
Than, when the LED way that the present invention is set is more, the control line that can be saved is more, simpler than traditional manufacture craft,
It is understandable, so as to greatly reduce the manufacturing cost of LED string.
Brief description of the drawings
Fig. 1 is the LED string line map of prior art；
Fig. 2 is the system block diagram of the present invention；
Fig. 3 is the circuit diagram of control circuit；
Fig. 4 is the circuit diagram of LED string.
In figure：1st, LED string；2nd, main control chip；3rd, control circuit；4th, on-off circuit；41st, sub switch circuit；5th, remember
Chip；6th, key circuit；7th, crystal oscillating circuit；8th, light-operated circuit；9th, infrared receiving circuit.
Embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
A kind of both positive and negative polarity LED control system altogether, as shown in Fig. 2 including possessing the power supply of 3-36V low pressure, possessing joint
Power line, control circuit 3 and LED string 1, one end of power line by will its joint insert in the interface of power supply with power supply electricity
Connection, the other end of power line electrically connect with the power end of control circuit, and output end and the LED string 1 of control circuit 3 are electrically connected
Connect, so as to control the blinking sequence and flashing mode of LED string 1 by control circuit 3.Wherein, possesses the power supply of 3-36V low pressure
Can be to possess socket, host computer, charger baby of USB interface etc..Because general USB interface output is 5VDC low tensions
Source, meet the standard of the low-tension supply of LED string 1, therefore need not be the design specialized low-tension supply of LED string 1, will not also produce
The problem of raw Power Interface Standard differs, the applicability of LED string 1 is added while having saved cost.
As shown in figure 4, LED string 1 therein include n bars control line and n ×（n-1）Paths of LEDs lamp, in every two control lines
Between it is positive and negative be connected in parallel two paths of LED lamp, control line described in n bars is all connected to control circuit 3, and control line in the present invention
Bar number n is more than or equal to 3.So allow for n bars control line can connect n ×（n-1）Paths of LEDs lamp, compared with conventional art, when
The LED way that the present invention is set is more, and the control line that can be saved is more, so as to greatly reduce the manufacture of LED string 1
Cost.For example for, 3 control lines can connect 6 paths of LEDs lamps, 4 control lines can connect 12 paths of LEDs in the present invention
Lamp, 5 control lines can connect 20 paths of LEDs lamps, 6 control lines can connect 30 paths of LEDs lamps, 7 control lines can connect 42
Paths of LEDs lamp, 8 control lines can connect 56 paths of LEDs lamps, 9 control lines can connect 72 paths of LEDs lamps etc., but utilize and pass
The mode of connection of system, set 72 paths of LEDs lamps then need to use 73 control lines to connect, by contrast, it is clear that this hair
The bright manufacturing cost for substantially reducing LED string 1.
As shown in Figure 3, Figure 4, control circuit 3 includes main control chip 2 and the on-off circuit 4 being connected with main control chip 2,
The input of on-off circuit 4 is coupled to main control chip 2, and output end is coupled to LED string 1.The main control chip 2 of the present invention is monolithic
Machine.LED string 1 is controlled after on-off circuit 4 by main control chip 2, so that LED string 1 realizes different blinking sequences
And flashing mode.
Wherein, as shown in Figure 3, Figure 4, on-off circuit 4 includes the n sub- on-off circuits 41 to match with n bar control lines, son
On-off circuit 41 includes P-channel field-effect transistor (PEFT) pipe and N-channel FET；Wherein, the grid of P-channel field-effect transistor (PEFT) pipe is coupled to master control
The output end of chip 2, the drain electrode of P-channel field-effect transistor (PEFT) pipe are coupled to power end, and the source electrode of P-channel field-effect transistor (PEFT) pipe is coupled to N-channel
The drain electrode of FET and the tie point of LED string 1, the grid of N-channel FET are coupled to the grid of P-channel field-effect transistor (PEFT) pipe
With the tie point of the output end of main control chip 2, the source ground of N-channel FET.LED string 1 has n bar control lines, that is, has n
Input, output end of the n input respectively with n sub- on-off circuits 41 are connected, and realize that a sub- on-off circuit 41 connects
Connect a control line so that n sub- on-off circuits 41 P-channel field-effect transistor (PEFT) pipe between any two and N-channel FET form control
Loop processed, so as to light the LED in the control loop, by controlling the break-make of different control loops, to realize various differences
The blinking form of function.
In addition, as shown in figure 3, main control chip 2 is also associated with memory chip 5, the memory chip 5 is 24C02 chips,
24C02 chips have small volume and the characteristics of data power down are not lost so that when control circuit 3 is opened next time, LED string 1（See
Fig. 4）Or order when can be closed with last time is lit.
As shown in figure 3, main control chip 2 is connected with key circuit 6, the key circuit 6 includes key switch S1, key switch
S1 one end is connected with main control chip 2, key switch S1 other end ground connection.LED string 1 can be selected using key switch S1
（See Fig. 4）Flashing mode and be turned on or off.
Meanwhile as shown in figure 3, main control chip 2 is also associated with crystal oscillating circuit 7, realized by crystal oscillating circuit 7 time-controlled
Function, so as to realize LED string 1（See Fig. 4）Closing and time opening can be timed, is easy to control.
As shown in figure 3, being also associated with switching S2 on main control chip 2, switch S2 one end is connected to main control chip 2, another
End ground connection；And when switching S2 closures, the time control function of the realization of crystal oscillating circuit 7 is enabled, it is fixed so as to be realized to LED string 1
When open and close；When switching S2 disconnections, the time control function that crystal oscillating circuit 7 is realized is closed.
As shown in figure 3, main control chip 2 is also associated with light-operated circuit 8, the light-operated circuit 8 includes phototriode VD1, its
Colelctor electrode is coupled to main control chip 2, its grounded emitter；Realized by phototriode VD1 only when environment illumination intensity is less than
During predetermined value, LED string 1（See Fig. 4）It can just be opened, avoid causing unnecessary energy waste.
In addition, as shown in figure 3, main control chip 2 is also associated with wireless receiving circuit, the wireless receiving circuit is infrared receiver
Circuit 9, the infrared receiving circuit 9 include infrared remote receiver IC3, and it has the first pin, second pin and the 3rd pin, and it
One pin is coupled to main control chip 2, and for sending pulse signal, its second pin ground connection to main control chip 2, its 3rd pin leads to
Cross a second resistance R2 and be coupled to power end；Allow to by IR remote controller remote control LED string 1（See Fig. 4）Open
Close and adjust LED string 1（See Fig. 4）Flashing mode, personnel control of being more convenient for.The wireless receiving circuit can also be bluetooth
The various receiving circuits for receiving wireless signal such as receiving circuit, wireless WIFI receiving circuits.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of both positive and negative polarity LED control system altogether, including possess the power supply of 3-36V low pressure, possess the power line and electricity of joint
The control circuit of source line electrical connection（3）And and control circuit（3）The LED string of electrical connection（1）, it is characterised in that：The LED
Lamp string（1）Including n bars control line and n ×（n-1）Paths of LEDs lamp, it is positive and negative between every two control lines to be connected in parallel two-way
The LED, control line described in n bars are all connected to control circuit（3）.
A kind of 2. both positive and negative polarity LED control system altogether according to claim 1, it is characterised in that：The bar of the control line
Number n is more than or equal to 3.
A kind of 3. both positive and negative polarity LED control system altogether according to claim 1, it is characterised in that：The control circuit（3）
Including main control chip（2）And and main control chip（2）The on-off circuit being connected（4）, the on-off circuit（4）Input coupling
It is connected to main control chip（2）, output end is coupled to LED string（1）.
A kind of 4. both positive and negative polarity LED control system altogether according to claim 3, it is characterised in that：The on-off circuit（4）
Including the n sub- on-off circuits to match with n bar control lines（41）, the sub switch circuit（41）Including P-channel field-effect transistor (PEFT) pipe
With N-channel FET,
The grid of P-channel field-effect transistor (PEFT) pipe is coupled to main control chip（2）Output end, the drain electrode of P-channel field-effect transistor (PEFT) pipe is coupled to electricity
Source, the source electrode of P-channel field-effect transistor (PEFT) pipe are coupled to drain electrode and the LED string of N-channel FET（1）Tie point, N-channel field
The grid of effect pipe is coupled to the grid and main control chip of P-channel field-effect transistor (PEFT) pipe（2）The tie point of output end, N-channel field-effect
The source ground of pipe.
A kind of 5. both positive and negative polarity LED control system altogether according to claim 3, it is characterised in that：The main control chip（2）
It is also associated with memory chip（5）.
A kind of 6. both positive and negative polarity LED control system altogether according to claim 3, it is characterised in that：The main control chip（2）
It is also associated with crystal oscillating circuit（7）.
A kind of 7. both positive and negative polarity LED control system altogether according to claim 3, it is characterised in that：The main control chip（2）
It is also associated with light-operated circuit（8）, the light-operated circuit（8）Including phototriode, its colelctor electrode is coupled to main control chip（2）,
Its grounded emitter.
A kind of 8. both positive and negative polarity LED control system altogether according to claim 3, it is characterised in that：The main control chip（2）
Wireless receiving circuit is also associated with, the wireless receiving circuit is infrared receiving circuit（9）, the infrared receiving circuit（9）Bag
Infrared remote receiver is included, it has the first pin, second pin and the 3rd pin, and first pin is coupled to main control chip（2）,
For to main control chip（2）Pulse signal, the second pin ground connection are sent, the 3rd pin is coupled to power end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918921.XA CN107509283A (en) | 2017-09-30 | 2017-09-30 | A kind of both positive and negative polarity LED control system altogether |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710918921.XA CN107509283A (en) | 2017-09-30 | 2017-09-30 | A kind of both positive and negative polarity LED control system altogether |
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| CN107509283A true CN107509283A (en) | 2017-12-22 |
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| CN201710918921.XA Pending CN107509283A (en) | 2017-09-30 | 2017-09-30 | A kind of both positive and negative polarity LED control system altogether |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111031632A (en) * | 2019-11-25 | 2020-04-17 | 谢华荣 | Three-wire forward and reverse LED lamp string control circuit |
| CN112135383A (en) * | 2020-09-27 | 2020-12-25 | 宁波天辰汇光太阳能科技有限公司 | Circuit diagram formed by 3-wire 6-path classified elements, circuit diagram of integrated chip and lamp string connection method |
| CN112763784A (en) * | 2020-12-20 | 2021-05-07 | 复旦大学 | Current detection device and method |
| US11098882B2 (en) | 2018-07-24 | 2021-08-24 | C.E.T. Company Limited | Lamp easy to replace and lamp string structure |
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| CN105491730A (en) * | 2016-01-25 | 2016-04-13 | 嘉善三英灯饰有限公司 | USB interface LED lamp string control system |
| CN207266346U (en) * | 2017-09-30 | 2018-04-20 | 嘉善三英灯饰有限公司 | A kind of positive and negative anodes LED light control system altogether |
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| JP2002078347A (en) * | 2000-08-28 | 2002-03-15 | Mitsubishi Electric Corp | Inverter device, discharge lamp lighting device, and luminaire |
| CN201487798U (en) * | 2009-08-18 | 2010-05-26 | 普信科技股份有限公司 | Safety and energy-saving decorative lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11098882B2 (en) | 2018-07-24 | 2021-08-24 | C.E.T. Company Limited | Lamp easy to replace and lamp string structure |
| CN111031632A (en) * | 2019-11-25 | 2020-04-17 | 谢华荣 | Three-wire forward and reverse LED lamp string control circuit |
| CN112135383A (en) * | 2020-09-27 | 2020-12-25 | 宁波天辰汇光太阳能科技有限公司 | Circuit diagram formed by 3-wire 6-path classified elements, circuit diagram of integrated chip and lamp string connection method |
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| CN112763784B (en) * | 2020-12-20 | 2022-05-20 | 复旦大学 | Current detection device and method |
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