CN105517258A - LED street lamp - Google Patents
LED street lamp Download PDFInfo
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- CN105517258A CN105517258A CN201610065528.6A CN201610065528A CN105517258A CN 105517258 A CN105517258 A CN 105517258A CN 201610065528 A CN201610065528 A CN 201610065528A CN 105517258 A CN105517258 A CN 105517258A
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- Prior art keywords
- led lamp
- lamp bead
- led
- voltage signal
- luminescence unit
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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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
Abstract
Provided is an LED street lamp. The LED street lamp integrates LED lamp beads and a power supply, a timing dimming module is arranged, the timing dimming module, an input rectification module and a drive module are connected with one another, the timing dimming module is arranged in the same power circuit, control over the LED lamp beads is convenient, the LED lamp beads adopt sectional light emitting, the cost is reduced, the service life of the whole lamp is prolonged, LED lamp bead arrangement adopts two light-emitting branch circuits which are connected in parallel, in different LED lamp beam arrays, light-emitting units which emit light in the same phase correspondingly are connected in parallel, therefore, if one lamp bead is damaged, the light-emitting effect of the whole lamp is not affected, and production and assembly of the LED street lamp are extremely convenient.
Description
Technical field
The present invention relates to lighting field, particularly relate to and a kind ofly can light stage by stage and there is the LED street lamp of timing dimming function.
Background technology
In current illumination market, LED street lamp is applied very general in municipal works and field of street lamp lighting, its power is comparatively large, mostly between 100 ~ 200W.LED street lamp belongs to cold light source, and caloric value is lower.Existing constant current drives and is divided into two kinds of patterns, and one is constant voltage Switching Power Supply+inner constant current, and the constant voltage Switching Power Supply of which generally adopts traditional industrial Switching Power Supply, and then increases some constant current devices and circuit as constant current; Another kind is the Switching Power Supply of current constant mode, and which directly have employed constant current principle in Switching Power Supply inside.
Some LED street lamp existing, its driving power is external, lamp plate separates with driving power, in manufacturing process and structure, because lamp pearl have employed high-power LED (COB), therefore can not directly be welded on PCB, and need manually by keyset, each LED (COB) lamp to be welded together, production efficiency is lower, assembly cost is high, complex process, and when powering, need to transfer alternating current to powered by direct current, higher for exchanging the supply unit cost turning direct current.
Also some LED; all LED lamp bead on it are all simultaneously luminous; thus; the poor heat radiation of LED, longevity of service, life-span are shorter; and its lamp pearl adopts high-power LED (COB) mode usually; if there is a LEDs to damage, whole lantern festival just can enter protection and lack bright state, thus affects illuminating effect.
In addition, existing LED street lamp, need Long-distance Control light modulation, need extra control light-adjusting module, costly, not easily realize simultaneously, such as Chinese patent literature CN203523079, disclose a kind of LED street lamp control system, its single lamp control system comprises dimming controlling module, timing control module etc., and single-chip microcomputer is connected with dimming controlling module, timing control module, it utilizes electric power carrier communication technology to carry out far distance light regulation control, but this control system departs from LED lamp bead and additionally arranges to realize dimming control function, costly.
Therefore, industry is needed one badly and is realized LED segmentation and light, and single LED lamp pearl damages does not affect whole lamp illumination effect and the LED street lamp that is integrated of timing dimming function.
Summary of the invention
In view of this, the present invention proposes a kind of LED street lamp, it is by light source and power supply integration, simultaneously, in a 1/4 wave band voltage signal, divide n stage to light the LED lamp bead of varying number, and LED lamp bead adopts special arrangement mode, when damaging or lacking bright appears in any lamp pearl, other lamp pearls normally work, have no effect, and LED lamp bead segmentation is lighted, improve heat-sinking capability, extend the useful life of LED lamp bead, in addition, be provided with timing dimming module, with input rectifying module, driver module connects between two, timing dimming module is made in same power circuit, be convenient to the control to LED lamp bead.
A kind of LED street lamp that object according to the present invention proposes, comprise lamp plate, be fixed on the many groups LED lamp bead array on lamp plate and be arranged on lamp plate with the described power circuit organized LED lamp bead array and be connected more, each is organized described LED lamp bead array and comprises several LED lamp bead, described power circuit is segmented LED drive circuit, this power circuit divides n stage to light the LED lamp bead of varying number in a 1/4 wave band voltage signal, described power circuit comprises input rectifying module, driver module and timing dimming module, described input rectifying module, timing dimming module is connected between two with driver module, each is organized described LED lamp bead array and comprises the n corresponding with its a stage quantity luminescence unit, each luminescence unit comprises at least two luminous branch roads in parallel, LED lamp bead quantity on each luminous branch road is consistent with the LED lamp bead quantity that the voltage signal in corresponding stage can drive, in different LED lamp bead arrays, connect in parallel between corresponding luminescence unit luminous in same stage.
Preferably, described input rectifying module, by commercial power rectification filtering, exports steamed bun ripple, described driver module and input rectifying model calling, and described driver module divides n stage to light the LED lamp bead of varying number in a 1/4 wave band voltage signal.
Preferably, described timing dimming module comprises single-chip microcomputer, and described driver module comprises IC, is provided with timing dimming program in described single-chip microcomputer, and exportable signal, to control the IC in described driver module, realizes timing dimming.
Preferably, described driver module also comprises some MOSFET, some resistance, IC samples input sinusoidal signal by 2 pin, go respectively to control opening and turning off of some MOSFET by each pin after internal calculation, to make LED luminous, described some resistance is current sampling, to control whole lamp current.
Preferably, described LED lamp bead array is provided with three groups, and first group of LED lamp bead array comprises 8 LED lamp bead, and second group of LED lamp bead array comprises 12 LED lamp bead, and the 3rd group of LED lamp bead array comprises 12 LED lamp bead;
8 LED lamp bead in first group of LED lamp bead array are divided into 2 luminescence units, in a 1/4 wave band voltage signal, point two stages light, first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road;
12 LED lamp bead in second group of LED lamp bead array are divided into 4 luminescence units, in a 1/4 wave band voltage signal, a point four-stage is lighted, first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, three luminescence unit corresponding with phase III voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections, four luminescence unit corresponding with fourth stage voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections,
12 LED lamp bead in 3rd group of LED lamp bead array are divided into 4 luminescence units, in a 1/4 wave band voltage signal, a point four-stage is lighted, first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, three luminescence unit corresponding with phase III voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections, four luminescence unit corresponding with fourth stage voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections.
Preferably, when reaching described first stage voltage signal, described first group of LED lamp bead array, four LED lamp bead in the first luminescence unit in second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted, when reaching described second stage voltage signal, described first group of LED lamp bead array, four LED lamp bead in the second luminescence unit in second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted, when reaching described phase III voltage signal, two LED lamp bead in the 3rd luminescence unit in described second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted, when reaching described fourth stage voltage signal, two LED lamp bead in the 4th luminescence unit in described second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted.
Preferably, described LED lamp bead has 32, and the power of described LED street lamp is 46W.
Preferably, described lamp plate is aluminium base or PCB substrate.
Compared with prior art, the present invention has following technical advantage:
LED lamp bead and power drives are integrated in same, utilize aluminium base as connection carrier, work simplification, be convenient to produce and assembling.
Directly can exchange with 220V and LED be lighted, without the need to separately filling direct current conversion and drive unit, cost is low.
Be provided with timing dimming module, be connected between two with input rectifying module, driver module, timing dimming module is made in same power circuit, be convenient to the control to LED lamp bead.
Directly can replace former COB scheme lamp pearl, and damaging or lacking bright appears in lamp pearl arbitrarily, other lamp pearls normally work, and have no effect.
Eliminate Switching Power Supply, without switching component and transformer, EMC is effective, noiseless, high to human safety, and it is little to generate heat, and efficiency is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is circuit theory diagrams of the present invention
Fig. 2 is the schematic diagram of the voltage that segmentation of the present invention is lighted
Embodiment
As described in the background art; in prior art, LED lamp bead is lighted simultaneously, and adopts COB scheme; if there is a LED lamp pearl to damage; so whole LED then can enter protection and lack bright state, and other lamp pearls also can be affected, and affect illuminating effect; simultaneously; LED street lamp of the prior art, needs extra control light-adjusting module to carry out Long-distance Control light modulation, costly and not easily realize.
LED street lamp in the present invention, comprise lamp plate, be fixed on the many groups LED lamp bead array on lamp plate and be arranged on lamp plate with the power circuit organized LED lamp bead array more and be connected, each group LED lamp bead array comprises several LED lamp bead, power circuit is segmented LED drive circuit, this power circuit divides n stage to light the LED lamp bead of varying number in a 1/4 wave band voltage signal, power circuit comprises input rectifying module, driver module and timing dimming module, input rectifying module, timing dimming module is connected between two with driver module, each is organized described LED lamp bead array and comprises the n corresponding with its a stage quantity luminescence unit, each luminescence unit comprises at least two luminous branch roads in parallel, LED lamp bead quantity on each luminous branch road is consistent with the LED lamp bead quantity that the voltage signal in corresponding stage can drive, in different LED lamp bead arrays, connect in parallel between corresponding luminescence unit luminous in same stage.
Below, will be described in detail concrete technical scheme of the present invention.
LED in the present invention comprises lamp body, lamp plate, be fixed on the many groups LED lamp bead array on lamp plate and be arranged on lamp plate with the power circuit organized LED lamp bead array more and be connected.Lamp plate is arranged in lamp body, it is fixedly connected with some LED lamp bead, and driving power is arranged on lamp plate, and one end of driving power is electrically connected with LED lamp bead, and the other end is connected with external power source by wire.LED lamp bead is several, and be arranged on lamp plate 1, lamp plate can be made by aluminium material, can be also directly pcb board.
Refer to Fig. 1, circuit theory diagrams of the present invention, power circuit comprises input rectifying module, timing dimming module, driver module and light emitting module, light emitting module i.e. several LED lamp bead, and input rectifying module, timing dimming module, driver module are connected between two with light emitting module, and input rectifying module can by AC alternating current by rectifier bridge BD1 rectification, two inputs of BD1 are connected with civil power, civil power, after rectifying and wave-filtering, exports steamed bun ripple, as shown in Figure 2.Have fuse F1 in addition, play safety effect, when circuit occurs abnormal, fuse then fuses, thus protective circuit.Driver module, makes alternating current input voltage divide multistage LED lamp bead to be lighted respectively, comparatively conventional linear scheme, improves the luminous efficiency of lamp pearl, and extend the useful life of lamp pearl.Timing dimming module comprises single-chip microcomputer EM78P259, driver module comprises ICACDRV2.1, be provided with timing dimming program in single-chip microcomputer, by this timing dimming program control, exportable signal is to control the ICACDRV2.1 in driver module, realize the function of timing dimming, regulate the brightness of LED lamp bead or carry out the operation of open and close lamp, because timing dimming module has been made in same power circuit, optimum configurations can be adjusted at any time, be convenient to, to the control of LED lamp bead, raise the efficiency.IC samples input sinusoidal signal by 2 pin, then go respectively after carrying out internal calculation control Q1, Q2, Q3, Q4 open and turn off make LED lamp bead luminous, wherein Q1, Q2, Q3, Q4 all represent MOSFET (2A/600V), resistance R1, R2, R3, R4 are current sampling, can control whole lamp current by this.
Light emitting module comprises many group LED lamp bead arrays.Power circuit can divide n stage to light the LED lamp bead of varying number in a 1/4 wave band voltage signal, each group LED lamp bead array comprises the n corresponding with a stage quantity luminescence unit, each luminescence unit comprises at least two luminous branch roads in parallel, LED lamp bead quantity on each luminous branch road is consistent with the LED lamp bead quantity that the voltage signal in corresponding stage can drive, in different LED lamp bead arrays, connect in parallel between corresponding luminescence unit luminous in same stage.
LED lamp bead array is provided with three groups, and first group of LED lamp bead array comprises 8 LED lamp bead, is D respectively
1, D
2, D
3, D
4, D
13, D
14, D
15, D
16, second group of LED lamp bead array comprises 12 LED lamp bead, is D respectively
5, D
6, D
9, D
10, D
17, D
18, D
19, D
20, D
28, D
32, D
27, D
31, the 3rd group of LED lamp bead array comprises 12 LED lamp bead, is D respectively
11, D
12, D
7, D
8, D
21, D
22, D
23, D
24, D
26, D
30, D
25, D
29;
Input voltage steamed bun ripple is divided into four voltage signals, controls the number that LED lamp bead is lighted respectively.Wherein, 8 LED lamp bead in first group of LED lamp bead array are divided into 2 luminescence units, and in a 1/4 wave band voltage signal, point two stages light, and first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead D
1, D
2, D
3, D
4, these four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, i.e. D
1with D
2series connection, D
3with D
4series connection, then D
1, D
2with D
3, D
4between parallel with one another; Second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead D
13, D
14, D
15, D
16, in like manner, D
13with D
14series connection, D
15with D
16series connection, then, D
13, D
14with D
15, D
16between parallel with one another;
12 LED lamp bead in second group of LED lamp bead array are divided into 4 luminescence units, and in a 1/4 wave band voltage signal, a point four-stage is lighted, and first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead D
5, D
6, D
9, D
10, these four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, i.e. D
5with D
6series connection, D
9with D
10series connection, then D
5, D
6with D
9, D
10between parallel with one another; Second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead D
17, D
18, D
19, D
20, in like manner, D
17with D
18series connection, D
19with D
20series connection, then, D
17, D
18with D
19, D
20between parallel with one another; Three luminescence unit corresponding with phase III voltage signal comprises two LED lamp bead D
28, D
27, these two LED lamp bead parallel connections, four luminescence unit corresponding with fourth stage voltage signal comprises two LED lamp bead D
32, D
31, these two LED lamp bead parallel connections;
12 LED lamp bead in 3rd group of LED lamp bead array are divided into 4 luminescence units, and in a 1/4 wave band voltage signal, a point four-stage is lighted, and first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead D
11, D
12, D
7, D
8, these four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, i.e. D
11with D
12series connection, D
7with D
8series connection, then D
11, D
12with D
7, D
8between parallel with one another; Second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead D
21, D
22, D
23, D
24, in like manner, D
21with D
22series connection, D
23with D
24series connection, then, D
21, D
22with D
23, D
24between parallel with one another; Three luminescence unit corresponding with phase III voltage signal comprises two LED lamp bead D
26, D
25, these two LED lamp bead parallel connections, four luminescence unit corresponding with fourth stage voltage signal comprises two LED lamp bead D
30, D
29, these two LED lamp bead parallel connections.
When input voltage reaches D
1with D
2during voltage sum, by opening Q1 by the LED lamp bead of first stage, the LED lamp bead D in the first luminescence unit namely in first group of LED lamp bead array, second group of LED lamp bead array and the 3rd group of LED lamp bead array
1, D
2, D
3, D
4, D
5, D
6, D
9, D
10, D
11, D
12, D
7, D
8all light luminescence; When input voltage continues to rise, reach D
1, D
2, D
13, D
14during sum, disconnect Q1, open Q2, by the LED lamp bead of second stage, the LED lamp bead in the second luminescence unit namely in first group of LED lamp bead array, second group of LED lamp bead array and the 3rd group of LED lamp bead array is lighted, now, and D
1, D
2, D
3, D
4, D
5, D
6, D
9, D
10, D
11, D
12, D
7, D
8, D
13, D
14, D
15, D
16, D
17, D
18, D
19, D
20, D
21, D
22, D
23, D
24all light luminescence; When input voltage rises to D
1, D
2, D
13, D
14, D
28during sum, Q3 is open-minded, Q1, Q2 are in closed condition, and by the LED lamp bead of phase III, the LED lamp bead in the 3rd luminescence unit namely in second group of LED lamp bead array and the 3rd group of LED lamp bead array is lighted, now, and D
1, D
2, D
3, D
4, D
5, D
6, D
9, D
10, D
11, D
12, D
7, D
8, D
13, D
14, D
15, D
16, D
17, D
18, D
19, D
20, D
21, D
22, D
23, D
24, D
28, D
27, D
26, D
25all light luminescence; When input voltage rises to D
1, D
2, D
13, D
14, D
28, D
32during sum, Q4 is open-minded, Q1, Q2, Q3 are in closed condition, and by the LED lamp bead of fourth stage, the LED lamp bead in the 4th luminescence unit namely in second group of LED lamp bead array and the 3rd group of LED lamp bead array is lighted, now, and D
1, D
2, D
3, D
4, D
5, D
6, D
9, D
10, D
11, D
12, D
7, D
8, D
13, D
14, D
15, D
16, D
17, D
18, D
19, D
20, D
21, D
22, D
23, D
24, D
28, D
27, D
26, D
25, D
32, D
31, D
30, D
2932 LED lamp pearls all light luminescence.
In like manner, when voltage declines gradually, LED lamp bead is extinguished successively gradually, and when input voltage drops to phase III voltage signal sum, Q4 closes, now D
1, D
2, D
3, D
4, D
5, D
6, D
9, D
10, D
11, D
12, D
7, D
8, D
13, D
14, D
15, D
16, D
17, D
18, D
19, D
20, D
21, D
22, D
23, D
24, D
28, D
27, D
26, D
25light luminescence, and D
32, D
31, D
30, D
29extinguish; When input voltage continues to decline, when dropping to second stage voltage signal sum, Q3 closes, now D
1, D
2, D
3, D
4, D
5, D
6, D
9, D
10, D
11, D
12, D
7, D
8, D
13, D
14, D
15, D
16, D
17, D
18, D
19, D
20, D
21, D
22, D
23, D
24light luminescence, and D
28, D
27, D
26, D
25extinguished; When input voltage continues to decline, when dropping to first stage voltage signal voltage sum, Q2 closes, now D
1, D
2, D
3, D
4, D
5, D
6, D
9, D
10, D
11, D
12, D
7, D
8light luminescence, and D
13, D
14, D
15, D
16, D
17, D
18, D
19, D
20, D
21, D
22, D
23, D
24extinguish.
Wherein, inner at light emitting module, by the rational arrangement carried out LED lamp bead, any LED lamp pearl can be reached and produce inefficacy, to the effect that whole lamp has no effect.Such as, if LED lamp bead D
1break down, no matter its fault is open circuit or short circuit, and all little on whole circuit impact, if its open circuit, electric current can by the D be connected in parallel with it
3with D
4and the LED lamp bead of each group LED lamp bead array co-located is shared, if this LED lamp pearl short circuit, D
1then be equivalent to a wire, electric current flows through D
2, on whole circuit also without impact.
In the present invention, a number of LED lamp bead is 32, and the power of every LED lamp pearl is 1.3W, so the power of whole light emitting module is about: 32*1.3/0.9=46W, the combination in the present invention can substitute traditional C OB (12 ~ 15W) scheme completely.
As other execution mode, be not only and four sections can be divided LED lamp bead to be lighted respectively, it can be a point n section, input voltage steamed bun ripple is divided into n magnitude of voltage, LED lamp bead array is also not only only has three groups, but having many groups, each combines the LED lamp bead comprised and is also not only 8 or 12, and can be other several.
The present invention has used a kind of novel I C Driving technique in traditional LED street lamp, LED lamp bead and power supply are integrated, extremely be convenient to produce and assembling, be provided with timing dimming module simultaneously, be connected between two with input rectifying module, driver module, timing dimming module is made in same power circuit, be convenient to the control to LED lamp bead, in addition, LED lamp bead have employed segmentation luminescence, make while reducing costs, improve the useful life of whole lamp.And the arrangement of LED lamp bead adopts two luminous branch roads in parallel, in different LED lamp bead arrays, the mode connected with parallel way between corresponding luminescence unit luminous in same stage, even if make a certain lamp pearl damage, does not affect the illumination effect of whole lamp yet.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (8)
1. a LED street lamp, comprise lamp plate, be fixed on the many groups LED lamp bead array on lamp plate and be arranged on lamp plate with the described power circuit organized LED lamp bead array and be connected more, each is organized described LED lamp bead array and comprises several LED lamp bead, it is characterized in that: described power circuit is segmented LED drive circuit, this power circuit divides n stage to light the LED lamp bead of varying number in a 1/4 wave band voltage signal, described power circuit comprises input rectifying module, driver module and timing dimming module, described input rectifying module, timing dimming module is connected between two with driver module, each is organized described LED lamp bead array and comprises the n corresponding with its a stage quantity luminescence unit, each luminescence unit comprises at least two luminous branch roads in parallel, LED lamp bead quantity on each luminous branch road is consistent with the LED lamp bead quantity that the voltage signal in corresponding stage can drive, in different LED lamp bead arrays, connect in parallel between corresponding luminescence unit luminous in same stage.
2. a kind of LED street lamp as claimed in claim 1, it is characterized in that: described input rectifying module is by commercial power rectification filtering, export steamed bun ripple, described driver module and input rectifying model calling, described driver module divides n stage to light the LED lamp bead of varying number in a 1/4 wave band voltage signal.
3. a kind of LED street lamp as claimed in claim 1, it is characterized in that: described timing dimming module comprises single-chip microcomputer, and described driver module comprises IC, is provided with timing dimming program in described single-chip microcomputer, exportable signal, to control the IC in described driver module, realizes timing dimming.
4. a kind of LED street lamp as claimed in claim 3, it is characterized in that: described driver module also comprises some MOSFET, some resistance, IC samples input sinusoidal signal by 2 pin, go respectively to control opening and turning off of some MOSFET by each pin after internal calculation, to make LED luminous, described some resistance is current sampling, to control whole lamp current.
5. a kind of LED street lamp as claimed in claim 1, it is characterized in that: described LED lamp bead array is provided with three groups, first group of LED lamp bead array comprises 8 LED lamp bead, and second group of LED lamp bead array comprises 12 LED lamp bead, and the 3rd group of LED lamp bead array comprises 12 LED lamp bead;
8 LED lamp bead in first group of LED lamp bead array are divided into 2 luminescence units, in a 1/4 wave band voltage signal, point two stages light, first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road;
12 LED lamp bead in second group of LED lamp bead array are divided into 4 luminescence units, in a 1/4 wave band voltage signal, a point four-stage is lighted, first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, three luminescence unit corresponding with phase III voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections, four luminescence unit corresponding with fourth stage voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections,
12 LED lamp bead in 3rd group of LED lamp bead array are divided into 4 luminescence units, in a 1/4 wave band voltage signal, a point four-stage is lighted, first luminescence unit corresponding with first stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, second luminescence unit corresponding with second stage voltage signal comprises four LED lamp bead, described four LED lamp bead divide two luminous branch roads in parallel, connect between two LED lamp bead in each luminous branch road, three luminescence unit corresponding with phase III voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections, four luminescence unit corresponding with fourth stage voltage signal comprises two LED lamp bead, described two LED lamp bead parallel connections.
6. a kind of LED street lamp as claimed in claim 5, it is characterized in that: when reaching described first stage voltage signal, described first group of LED lamp bead array, four LED lamp bead in the first luminescence unit in second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted, when reaching described second stage voltage signal, described first group of LED lamp bead array, four LED lamp bead in the second luminescence unit in second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted, when reaching described phase III voltage signal, two LED lamp bead in the 3rd luminescence unit in described second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted, when reaching described fourth stage voltage signal, two LED lamp bead in the 4th luminescence unit in described second group of LED lamp bead array and the 3rd group of LED lamp bead array are lighted.
7. a kind of LED street lamp as claimed in claim 1, is characterized in that: described LED lamp bead has 32, and the power of described LED street lamp is 46W.
8. a kind of LED street lamp as claimed in claim 1, is characterized in that: described lamp plate is aluminium base or PCB substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065528.6A CN105517258A (en) | 2016-01-29 | 2016-01-29 | LED street lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610065528.6A CN105517258A (en) | 2016-01-29 | 2016-01-29 | LED street lamp |
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| CN105517258A true CN105517258A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610065528.6A Pending CN105517258A (en) | 2016-01-29 | 2016-01-29 | LED street lamp |
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| CN106028573A (en) * | 2016-07-22 | 2016-10-12 | 深圳市创荣发电子有限公司 | Control device and method for LED lamp |
| CN107205296A (en) * | 2017-03-20 | 2017-09-26 | 佳兴电机股份有限公司 | Light-emittingdiode circuit |
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